6014A_2007.pdf

Re: Megane II phII 1.4 16V - Zbyt wysokie napięcie ładowania

Mam jeszcze jedną prośbę do was. Proszę o wyrozumiałość bo moja wiedza jest raczej przeciętna w tej dziedzinie. Nota z 2005 ostatnia strona, bo nie wiem czy dobrze rozumiem, mam mierzyć natężenie w przewodzie łączącym aku z altkiem? Znowu w nocie z 2007 strona 16A-31 do 32 są trochę inne wartości i pomiar też na pracującym silniku, piszą "connect a current clamp to the alternator B+ wire" chodzi o to samo co wyżej? Muszę mieć miernik cęgowy czy zwykłym mogę to zmierzyć? Z tym że jest on chyba do 20A.


Technical Note 6014A
TWINGO I - KANGOO I - CLIO II - LOGAN SANDERO - MEGANE I - SCENIC I MEGANE II Ph 1 - SCENIC II Ph 1 VELSATIS - ESPACE IV - TRAFIC II - MASTER
PROPULSION - MASTER II - KOLEOS - THALIA/
SYMBOL
For vehicles not concerned by this Technical Note the fault finding is performed by the diagnostic tool.

CHECKING THE CHARGING
CIRCUIT AND STARTER

Help when looking for faults or malfunctions on one or more components of the starting or charging
circuits.
Comments and special notes on battery maintenance and protection.

77 11 332 282

Edition 7 - DECEMBER 2007

" The repair procedures given by the manufacturer in this document are based on the
technical specifications current when it was prepared.
The procedures may be modified as a result of changes introduced by the
manufacturer in the production of the various component units and accessories from
which his vehicles are constructed. "

All copyrights reserved by Renault.
Copying or translating, in part or in full, of this document or use of the service part
reference numbering system is forbidden without the prior written authority of Renault.

(C) Renault S.A.S. 2008
Temp.mif
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Edition Anglaise

Contents
16A STARTING - CHARGING
Checking the charging circuit and starter
Description of the charging circuit
Use of measuring instruments
Information about batteries
Information about alternators
Information about starters
Charging circuit wiring diagrams
Fault finding chart
Tests

Page
16A-1
16A-2
16A-3
16A-5
16A-6
16A-7
16A-9
16A-25

STARTING/CHARGING
Charging circuit check: Description of the charging circuit

16A

Purpose and components:
The main function of the charging circuit is to produce and distribute the electrical energy required to operate the
various electrical consumers on the vehicle (computers, lights, etc.). It is also used to start the engine.
The main components are a battery, an alternator and a starter motor.
Battery:
The principal purpose of the battery is to provide the powerful current briefly required by the starter motor to start the
engine. For optimum starting, the current supplied by the battery must be sent to the starter motor with minimum
loss. To achieve this, the electrical connections (wires, terminals, connectors, etc.) must be in good condition.
When the engine is not running, the battery must feed the accessories that operate constantly, even with the ignition
switched off, such as the alarm, radio codes, computers, etc.
Note:
- A battery must always be fully charged, even when stored.
- Recharge the battery, if necessary (see Technical Note 6512A)
Alternator:
The alternator only operates when the engine is running. Its function is to recharge the battery and at the same time
to supply the electrical power required to operate all the electrical accessories on the vehicle.
Starter:
This turns the engine over to make it start and requires a very powerful electric current, which the battery must be
able to supply.
Wiring and connections:
In view of the currents involved, the electrical connections must be of very high quality. The slightest fault
(connection or terminal loose or dirty, old wire, etc.) creates electrical resistance that is not only detrimental to the
correct operation of the charging circuit, but may also cause overheating and a fire hazard.
Power-fuse:
Some vehicles are fitted with a power-fuse. This high-power fuse is fitted directly after the battery to protect all of the
vehicle electrical components, even the most powerful consumers (such as the alternator or the starter). The powerfuse is positioned either on the positive terminal of the battery, or in the wiring to which it is connected.

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16A - 1

STARTING/CHARGING
Charging circuit check: Use of measuring instruments

16A

Voltage measurement:
Do not use needle voltmeters as they are not accurate enough.
Preferably use instruments with a digital display which are more accurate and better protected against connection
errors.
Use tools approved by RENAULT.
Current measurement:
Preferably use a current clamp.
If it is difficult to hold several cables, use the tool Elé 1806 which fits onto the battery negative terminal in series.
Test equipment:
To check the condition of the battery, use the instrument Midtronics R330 (Elé: 1593). Respect the conditions of
use for this tool.
Only use the Midtronics instrument if there is a fault affecting the charging circuit and not as a preventive measure.

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16A - 2

STARTING/CHARGING
Charging circuit check: Information about batteries

16A

CHECKING THE AREA AROUND THE BATTER
Y
?

Insufficient tightening of the bracket mounting bolt: the bracket must be fitted using the correct tightening torque
(see Repair Manual for the corresponding vehicle, 80A, Battery: Removal - Refitting). Excessive tightening is
not beneficial and can be dangerous, as it can damage, or even break, the battery. Conversely, insufficient
tightening allows too much play, and there may be wear caused by battery movement and breakage caused by
impact.

?

Insufficient tightening of the battery terminal mounting: check that the battery terminals are correctly fitted and
tightened. The terminals must be fitted using the correct tightening torque (see Repair Manual for the
corresponding vehicle, 80A, battery: removal - refitting).

?

Insufficient tightening of the battery terminal stud nuts: check that the battery terminal stud nuts are correctly fitted
securely tightened. The nuts must be tightened to the correct tightening torque (see the MR for the corresponding
vehicle, 80A, Battery, Battery: Removal - Refitting).

WARNING
o All vehicles are equipped with low water consumption batteries. Opening the battery and topping up the
electrolyte are FORBIDDEN.
o Batteries contain sulphuric acid, which is a hazardous chemical.
o Battery charging produces hydrogen and oxygen, which are very flammable gases and thus there is a risk of
explosion.
o Any batteries with filling plugs must not be opened under any circumstances but replaced immediately with
Renault approved batteries.
Battery recharging:
When parked, vehicles consume power through their permanent consumers and through any accessories fitted as
After-Sales options. To keep battery discharging to a minimum, limit the number of times the vehicle is started,
periods with the ignition on, doors open, etc., as much as possible.
A discharged battery must be recharged using a Renault-approved battery charger (see Technical Note 6512A)
WARNING
o Simultaneous recharging of several batteries in series or in parallel is forbidden.
o A battery charger used on a battery connected to a vehicle can irreparably damage the vehicle computers due
to the high voltages created when charging.
o The location of the charger must take this into account (ventilation).
o A battery charger or a booster not approved by Renault can damage the electrical components.
Battery storage:
Even when stored off the vehicle, a battery gradually discharges, and more rapidly if the ambient temperature is
high.
For a battery to remain operational for a long time, it must be stored at a temperature of around 15?C and protected
from moisture. To retain a good level of charge, it is recommended that a complete battery recharge is carried out
after the battery has been stored for 3 months.
A new battery that has been stored for more than one year must not be fitted to a vehicle.

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16A - 3

STARTING/CHARGING
Charging circuit check: Information about batteries

16A

Replacing a battery:
Always replace a battery with one that has the same electrical and dimensional specifications.

1

Hydrometer (magic eye)

2

Battery label example
L5 12V 95AH Test 850A EN
82 00 000 000
L5: dimensions
Letter L = height 190 mm
Letters LB = height 175 mm
Figure 5 = length 352 mm (if 4 = 314 mm, etc.)
The width is always 175 mm
12V: nominal voltage
95Ah: nominal capacity
850A: starting current
EN: complies with European standards

3

Degassing vent

4

Degassing pipe

5

Date of manufacture format: DD/MM/YYYY

Visual inspection of the battery
Make sure there are no cracks or breakages, traces of acid, or creepage (sulphation) on the terminals. If any of the
above are present, replace the battery and clean the surrounding area.
Check that the degassing pipe is properly connected to the battery vent
Check that the degassing pipe (4) is correctly positioned

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16A - 4

STARTING/CHARGING
Testing the charging circuit: Information about alternators

16A

Types of alternator:
?
?

?

Non-electronically-managed alternators: these are conventional alternators which only have battery feed and fault
warning light outputs.
Alternators that are not electronically controlled and with a DF output (standard function on Vel Satis, Laguna,
Espace 4 and Mégane, and fitted to some older applications): these alternators have an additional output compared
to other conventional alternators that are not electronically-controlled. This output informs the computers about the
alternator's present charging rate.
Electronically-managed alternators (function available from the Modus onwards): they have no fault warning light
output, or DF output, but they have a multiplex network (BSS network) that carries the signals relating to the
operation of the alternator: faults, charging rate, temperature, settings (output voltage), type of alternator, etc. The
output voltage of these alternators is computer-managed via the BSS network.

Output voltage:
On alternators that are not electronically-controlled, the alternator output voltage is 14.4V ? 0.3V at 20?C (this
decreases with the alternator increase in temperature by approximately 10 mV/?C).
Some alternators have charging rate variation management. When current is drawn suddenly (main beam
headlights, de-icing, etc. switched on), the current supplied by the alternator does not change immediately, but
increases gradually. Thus, the charging rate of these alternators changes from 0 to 100% in a few seconds
(depending on the alternator make and speed of rotation). During this transition period, the alternator's output
voltage is not stable.
Note:
Wait 20 seconds after switching any of the vehicle electrical consumers on or off before taking a measurement.

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16A - 5

STARTING/CHARGING
Testing the charging circuit: Information about starters

Information about starter motors:
WARNING
? Always disconnect the battery earth before removing the starter motor.
? Do not operate the starter for a period of more than 20 seconds in succession.
? After three attempts at starting, wait 10 minutes to allow the starter to cool.

Key:
1
2
3
4
5
6
7
8

- Starter head
- Centring pin
- Electromagnetic switch (solenoid)
- Battery + 12 V terminal (power supply)
- Control circuit terminal
- Induction plate
- Electric motor
- Drive gear

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16A - 6

16A

STARTING/CHARGING
Testing the charging circuit: Charging circuit wiring diagrams

Alternator with DF output (Mégane II)

Alternator with DF output (Espace IV P9X):

163:

starter

107:

BATTERY

103:

alternator

1337:

USM = UPC

419:

air conditioning computer

120:

Injection computer

247:

charging circuit fault warning light on instrument panel

Alternator terminals:
- B+: alternator power output
- L: bulb output
- DF: output giving the alternator charge rate
- IGN: excitation control

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16A - 7

16A

STARTING/CHARGING
Testing the charging circuit: Charging circuit wiring diagrams

16A

Alternator with DF output (Espace IV except P9X, Vel Satis F4R and P9X, Laguna II ph2 F4R, K4M, G9T605,
G9T703, F9Q758):

Non-electronically-managed alternator (all other vehicles):

163:

starter

107:

BATTERY

103:

alternator

1

for Espace IV except P9X: air conditioning computer. For Vel Satis and Laguna II ph2: injection computer

247:

charging circuit fault warning light on instrument panel

Alternator terminals:
- B+: alternator power output
- L: bulb output
- DF: output giving the alternator charge rate

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16A - 8

STARTING/CHARGING
Charging circuit check: Fault finding charts (ALPs)

16A

FAULT WARNING LIGHT FAULT
THE FAULT WARNING LIGHT DOES NOT COME ON WHEN THE IGNITION IS SWITCHED
ON WITH THE ENGINE OFF

ALP 1

THE FAULT WARNING LIGHT COMES ON OR THE MESSAGE 'CHARGING CIRCUIT
FAULT' APPEARS WHEN THE ENGINE IS RUNNING

ALP 2

FAULT WHEN THE STARTER MOTOR IS OPERATING:
THE SPEED OF ROTATION OF THE STARTER MOTOR DROPS RAPIDLY
THE STARTER MOTOR ROTATES SLOWLY FROM THE OUTSET

ALP 3

THE STARTER MOTOR CAUSES THE WARNING LIGHTS ON THE INSTRUMENT PANEL
TO BECOME VERY DIM
THE STARTER DOES NOT TURN WHEN ACTUATED

ALP 4

THE STARTER TURNS BUT DOES NOT ENGAGE

ALP 5

THE STARTER IS NOISY WHEN STARTING

ALP 6

DIFFICULT STARTING
AFTER THE VEHICLE HAS BEEN IMMOBILE FOR SEVERAL DAYS
AFTER FREQUENT SHORT JOURNEYS

Alp7

WHEN COLD

TEST 1: power-fuse and the source of its fault
TEST 2: wiring check
TEST 3: battery condition (MIDTRONICS test)
TEST 4: alternator flow
TEST 5: high consumption of electrical current check

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16A - 9

STARTING/CHARGING
Charging circuit check: Fault finding charts (ALPs)

ALP 1

16A

The fault warning light does not come on when the ignition is
switched on with the engine off

Application: all vehicles except Laguna II and Vel Satis

NOTES

Use the tools from the kit ELE 1681 to avoid damaging the connections.

Note:
On the Laguna II and Vel Satis there is no fault warning light and therefore it is normal for the light not to illuminate.
Switch on the + after ignition feed
Do other warning lights come on?
YES

NO

Disconnect the connector for the
alternator signal warning light. Fit the
wire for the warning light to the earth on
the alternator casing.

Check that the supply fuses on the
instrument panel are in good condition.

Does the warning light come on?

YES

If the fault is still present, the charging circuit is not the
cause. Run fault finding on the instrument panel (see
Repair Manual for the corresponding vehicle, 83A,
Instrument panel ).

NO
Replace the alternator (see Repair Manual for the corresponding vehicle, 16A,
Starting-Charging, Alternator: Removal - Refitting).

Check all of the instrument panel connector connections
Is the connection sound?
YES

NO

A

B

AFTER REPAIR

Temp.mif
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Check that the fault is no longer present.
Test the battery (T3).

16A - 10

STARTING/CHARGING

16A

Charging circuit check: Fault finding charts (ALPs)

ALP 1
CONTINUED

A

B

YES

NO
Repair any damaged wires and terminals. If
the connection is faulty and if there is a repair
procedure (see Technical Note 6015A,
Electrical wiring repair, Wiring:
Precautions for repair), repair the wiring,
otherwise replace the wiring.

Reconnect the connector for the signal warning light.
With the engine at idle, measure the voltage between
the battery earth and the alternator earth.

Voltage value?

& lt; 0.7 V

& gt; 0.7 V

Check the operation of the
warning light by performing a
fault finding procedure on the
instrument panel (see Repair
Manual for the corresponding
vehicle, 83A Instrument
panel).

Retighten the alternator and
check that the engine earth and
the alternator earth are in good
condition.

AFTER REPAIR

Temp.mif
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Check that the fault is no longer present.
Test the battery (T3).

16A - 11

STARTING/CHARGING
Charging circuit check: Fault finding charts (ALPs)

16A

The fault warning light comes on or the message " Charging
circuit fault " appears when the engine is running

ALP 2

Applicability: All types

NOTES

Check the conformity of the alternator connections.
Check that the battery terminals are correctly tightened and in good condition (see the
MR for the corresponding vehicle, 80A, Battery, Battery: Removal - Refitting).
Perform a fault reading for any potential faults, using the diagnostic tool.
Test the battery (T3).

Visually inspect the alternator belt and pulley.
Is the belt tension and the belt and the pulley correct to specification?
NO

YES

If the belt is defective or slack, replace the alternator belt (see Repair Manual
for corresponding vehicle, 11A Accessories belt). If the pulley is faulty, replace
the alternator (see Repair Manual for corresponding vehicle, 16A, StartingCharging, Alternator: Removal-refitting).
With the engine running, does the warning light illuminate?
YES

NO

Check that the following wiring and terminals are in
good condition:
o the wire connecting the battery + to the alternator B+
terminal,
o the wire connecting the battery - to the bodywork
earth,
o the wire connecting the engine to the bodywork
earth.

A

AFTER REPAIR

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Check that the fault is no longer present.
Test the battery (T3).

16A - 12

Alternator is correct

STARTING/CHARGING

16A

Charging circuit check: Fault finding charts (ALPs)

ALP 2
CONTINUED 1

A

With the engine running at 3000 rpm and with all consumers switched off, measure the voltage to the battery
terminals.
Voltage value?
& lt; 13.5V
Measure the voltage between
the alternator + terminal and the
alternator earth

Between 13.5V and
14.8V
& gt; 14.8V

Voltage value?
& lt; 13.5V

>= 13.5V
Replace the alternator (see Repair Manual
for the corresponding vehicle, 16A, StartingCharging, Alternator: Removal Refitting). Visually inspect the
consequences (battery condition, corrosion,
etc.).

Replace the alternator (see
Repair Manual for the
corresponding vehicle, 16A,
Starting-Charging,
Alternator: Removal Refitting).

Stop the engine

Disconnect the connector for the alternator signal warning light and allow the engine to run at idle speed.
Does the warning light or message extinguish on the instrument panel?
YES

B

NO
Check the insulation to earth of the alternator warning light signal
wire.

C

AFTER REPAIR

Temp.mif
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Check that the fault is no longer present.
Test the battery (T3).

16A - 13

STARTING/CHARGING

16A

Charging circuit check: Fault finding charts (ALPs)

ALP 2
CONTINUED 2

C

B
YES

If this does not resolve the fault, run fault
finding on the instrument panel (see Repair
Manual for the corresponding vehicle,
83A, Instrument panel).

Measure the voltage between the battery earth and the
alternator earth.

& lt; 0.7 V

& gt; 0.7 V

Replace the alternator (see
Repair Manual for the
corresponding vehicle, 16A,
Starting-Charging,
Alternator: Removal Refitting ).

Retighten the alternator and
check that the engine earth and
the alternator earth are in good
condition.

AFTER REPAIR

Temp.mif
V7

Check that the fault is no longer present.
Test the battery (T3).

16A - 14

STARTING/CHARGING
Charging circuit check: Fault finding charts (ALPs)

ALP 3

16A

The speed of rotation of the starter drops rapidly
The starter rotates slowly from the outset
The starter causes the warning lights on the instrument panel to
become very dim.

Applicability: All types

NOTES

Test the wiring (T2).
Check the condition of the battery (T3).

If the fault is still present, replace the starter (see Repair Manual for the corresponding vehicle, 16A, StartingCharging, Starter : Removal - Refitting).

AFTER REPAIR

Temp.mif
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Check that the fault is no longer present.
Test the battery (T3).

16A - 15

STARTING/CHARGING
Charging circuit check: Fault finding charts (ALPs)

ALP 4

16A

The starter does not operate when it is actuated.

Applicability: All types

NOTES

Test the condition of the battery (T3).
Test the condition of the power-fuse (T1), if fitted to the vehicle.
Check the condition of the fuse controlling the starter.
Check the engine immobiliser (see Repair Manual for the corresponding vehicle,
section 82 or 87 ).
Check that the engine is not jammed.

Check that the following terminals are correctly tightened:
othe battery
ostarter
oengine earth
obodywork earth

Are the terminals correctly tightened?

NO

Retighten the terminals (see Repair
Manual for the corresponding vehicle,
80A, Battery, Battery: Removal Refitting).

YES
Check that the following wires are in good condition:
othe wire connecting the battery + to the starter B+
terminal
othe wire connecting the battery - to the bodywork earth
othe wire connecting the engine to the bodywork earth

NO

Are the wires in good condition?

Repair any damaged wires and
terminals. If the connection is faulty
and if there is a repair procedure (see
Technical Note 6015A, Electrical
wiring repair, Wiring: Precautions
for repair), repair the wiring, otherwise
replace the wiring.

YES

A

AFTER REPAIR

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Using the diagnostic tool, check that no faults have appeared on the computers. Clear
the faults if necessary.
Check that the fault is no longer present.
Test the battery (T3).

16A - 16

STARTING/CHARGING

16A

Charging circuit check: Fault finding charts (ALPs)

ALP 4
CONTINUED 1

A
YES
Try starting.
If the starter still does not turn, can a clicking noise be
heard when the starter is activated?
NO

YES

B

With the ignition switched off, measure the voltage between the battery earth and the starter control
terminal.
Voltage value?
& lt; 1V

Between 1V and 10V

>= 10V

While activating the starter, measure the voltage between the battery
earth and the starter control terminal.

Disconnect the starter control
terminal wire and measure the
voltage on the wire again.

Voltage value?

Voltage value?

& lt; 10V

>= 10V

>= 10V

& lt; 10V

Check that the + starter control wire is in good condition. Repair any damaged wires and
terminals. If the connection is faulty and if there is a repair procedure (see Technical Note
6015A, Electrical wiring repair, Wiring: Precautions for repair), repair the wiring,
otherwise replace the wiring.

If the fault is still present, check the starter control circuit using the diagnostic tool.

Replace the starter (see Repair Manual for the corresponding vehicle, 16A, Starting-Charging, Starter: Removal
- Refitting).

AFTER REPAIR

Temp.mif
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Using the diagnostic tool, check that no faults have appeared on the computers. Clear
the faults if necessary.
Check that the fault is no longer present.
Test the battery (T3).

16A - 17

STARTING/CHARGING
Charging circuit check: Fault finding charts (ALPs)

16A

ALP 4
CONTINUED 2

B
YES
Measure the voltage between the earth taken on one of the starter mounting points and its B+ terminal while
activating the starter.
Voltage value?
>= than 10V

Between 0V and 10V

Measure the drop in voltage between the battery
+ terminal and the starter B+ terminal, while
activating the starter.
>= 1V

Replace the wire connecting the
battery + terminal to the starter.

>= 1V

Voltage value?

Replace the earth wire(s) connecting
the engine to the battery

& lt; 1V
Measure the drop in voltage between the battery
- terminal and the earth on one of the starter
mounting points while activating the starter.
Voltage value?
& lt; 1V
Replace the starter (see Repair Manual for the corresponding vehicle, 16A, Starting-Charging, Starter: Removal
- Refitting).

AFTER REPAIR

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Using the diagnostic tool, check that no faults have appeared on the computers. Clear
the faults if necessary.
Check that the fault is no longer present.
Test the battery (T3).

16A - 18

STARTING/CHARGING

16A

Charging circuit check: Fault finding charts (ALPs)

ALP 5

The starter turns but does not engage

Applicability: All types

NOTES

Disconnect the battery earth before handling.

Remove the starter (see Repair Manual for the corresponding vehicle, 16A, Starting-Charging, Starter: Removal
- Refitting)

Check the condition of the engine flywheel ring gear (for damaged teeth).
Is the engine flywheel ring gear in good condition?
NO

YES
Replace the flywheel

Check the condition of the starter (broken teeth or worn gears).
Is the starter in good condition?
YES

NO

Refit the starter (see Repair Manual for the
corresponding vehicle, 16A, Starting-Charging,
Starter: Removal - Refitting).

AFTER REPAIR

Temp.mif
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Replace the starter (see Repair Manual for the
corresponding vehicle, 16A, Starting-Charging,
Starter: Removal - Refitting).

Check that the fault is no longer present.
Test the battery (T3).

16A - 19

STARTING/CHARGING

16A

Charging circuit check: Fault finding charts (ALPs)

ALP 6

The starter is noisy when starting

Applicability: All types

Test the condition of the battery (T3).
Check to make sure that the noise is actually coming from the starter.

NOTES

Try to start the engine.
At what point is the noise heard?
Starting phase

Just after the engine has started

Check that the starter is correctly
secured.

Does this vehicle have an ignition key or
is it a keyless vehicle?

Is the starter correctly secured?
YES

NO

WITH
Tighten the starter mountings.

NONE

A

Remove the starter and check that the
centring pin is present. Check the
condition of the pinion and carry out a full
check of the ring gear.

Inhibit the engine injection (see the inhibition procedure table)
and press the starter button. Press the button again after
3 seconds.

Is a fault noticed?

Does the starter always turn after the button is pressed for the
second time?

YES

NO

Replace the starter (see Repair Manual
for the corresponding vehicle, 16A,
Starting-Charging, Starter: Removal Refitting ).

Temp.mif
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NO

Starter control fault. Check the computers using
the diagnostic tool.

Repair

AFTER REPAIR

YES

Make several attempts and wait for 10 minutes after 3 attempts
(to allow the starter to cool). If the result is still the same after
several attempts, replace the starter.

Using the diagnostic tool, check that no faults have appeared on the computers. Clear
the faults if necessary.
Check that the fault is no longer present.
Test the battery (T3).

16A - 20

STARTING/CHARGING

16A

Charging circuit check: Fault finding charts (ALPs)

ALP 6
CONTINUED 1

A
WITH
Inhibit the engine injection (see the inhibition procedure table), run the starter motor for 2 seconds and release the
key.
Does the starter continue to run after the key is released?
YES

NO

Starter control fault. Check and repair the
control circuit.

AFTER REPAIR

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Make several attempts, and wait for 5 minutes after
5 attempts (to allow the starter to cool). If the result is
still the same after several attempts, replace the
starter.

Using the diagnostic tool, check that no faults have appeared on the computers. Clear
the faults if necessary.
Check that the fault is no longer present.
Test the battery (T3).

16A - 21

STARTING/CHARGING

16A

Charging circuit check: Fault finding charts (ALPs)

ALP 6
CONTINUED 2

Injection inhibition procedure summary table, according to vehicle and engine type.
Vehicle

D4

D7

Twingo

F

E

Clio2

F

E

Kangoo

F

E7

F4

E

F5

F

E

F8

F9

G9

M9

P9

ZD

K4

K7

K9

L7

E

F

E

A

F

E

F

E

A

Mégane 1

E

E

C

E

C

Espace 3

F

E

F

Avantime

F

E

F

Laguna 2 ph1

C

Laguna 2 ph2

C

Vel Satis ph1

C

E

Vel Satis ph2

C

E

Espace 4 ph1

C

E

E

Espace 4 ph2

C

E

E

TR25

E

Mégane 2 ph1

V4

Logan
Sandero

D

E

E

E

E

C

H

Trafic 2 ph1
Trafic 2 ph2

E

D

G

H

E

G

E

G

H

E

E

G

E
E

A

E

H
C

E

E
H

Koleos

AFTER REPAIR

D

E

Master 2 ph3

Temp.mif
V7

C

E

Master 2 ph2

B

H
H

Check that the fault is no longer present.
Test the battery (T3).

16A - 22

E

STARTING/CHARGING
Charging circuit check: Fault finding charts (ALPs)

16A

ALP 6
CONTINUED 3

A

VP005:

disable injection

B

VP013:

locking the injector command

VP013:

locking the injector command

VP008:

unlocking the injector command.

AC088:

locking the injector command

AC089:

unlocking the injector command.

C

D

E

Command not available (disconnect the TDC sensor or the injectors and erase any stored faults
using the diagnostic tool after repair).
AC591

locking the injector command

VP592:

unlocking the injector command.

VP036:

fuel supply inhibition

VP037:

lift fuel supply inhibition

SC037:

compression test

F

G

H

AFTER REPAIR

Temp.mif
V7

Check that the fault is no longer present.
Test the battery (T3).

16A - 23

STARTING/CHARGING
Charging circuit check: Fault finding charts (ALPs)

Difficult starting:
- After the vehicle has been immobile for several days
- After frequent short journeys
- When cold

ALP 7

Application: All types

Test the condition of the battery (T3).
Carry out a high electrical consumer test (T5).

NOTES

Test the alternator supply (T4).

If the fault is still there, check the wiring (T2).

If the fault is still present, the charging circuit is not the cause. Check the ignition,
preheating (diesel), etc.

AFTER REPAIR

Temp.mif
V7

Check that the fault is no longer present.
Test the battery (T3).

16A - 24

16A

STARTING/CHARGING

16A

Charging circuit check: Tests

TEST 1

Tests the condition of the power-fuse and the source of its fault

Applicability: Vehicles fitted with a power-fuse

NOTES

Check that the engine is not locked

With the ignition off, measure the voltage between the battery negative terminal and
the power-fuse output
Is the voltage equal to or greater than 10V?
YES

NO

The power-fuse is sound

The power-fuse is faulty

With the battery disconnected, measure the resistance between the battery negative
terminal and the power-fuse output
Is the resistance >= 10 Ohms?
NO

YES

Disconnect the alternator B+ terminal and then measure
the resistance between the battery negative terminal
and the power-fuse output

Possible external causes: use of a " starter
device " , use of the starter for too long,
vehicle driving with the starter running, etc.
......

Is the resistance >= 10 Ohms?
NO

YES
Replace the alternator (see Repair Manual for the corresponding vehicle, 16A,
Starting-Charging, Alternator: Removal - Refitting).

Check the wiring connecting the alternator and the
starter to the battery + terminal.
Is this wiring in good condition?
NO

A

Temp.mif
V7

YES

B

16A - 25

C

STARTING/CHARGING
Charging circuit check: Tests

16A

TEST 1
CONTINUED

A

B

NO

YES
Replace the starter (see Repair Manual for the corresponding vehicle,
16A, Starting-Charging, Starter: Removal - Refitting).

Repair any damaged wires and terminals. If the connection is faulty
and if there is a repair procedure (see Technical Note 6015A,
Electrical wiring repair, Wiring: Precautions for repair), repair
the wiring, otherwise replace the wiring.

Replace the power-fuse or the wiring if this is integral to it.

Temp.mif
V7

16A - 26

C

STARTING/CHARGING
Charging circuit check: Tests

TEST 2

16A

Wiring test

Applicability: All types

NOTES

None

Check the condition of the battery terminals. Check
there is no oxidation on the battery terminals.
Check that the terminals are in good condition and
correctly tightened: (See MR 392, Mechanical,
80A, Battery, Battery: Removal - Refitting ).
Are the terminals in good condition and not
corroded?

NO

Clean the terminals or replace them if necessary

NO

Replace the battery if necessary and clean its
surroundings in the vehicle:
(see MR 392, Mechanical, 80A, Battery, Battery:
Removal - Refitting).

YES

Repair any damaged wires and terminals. If the
connection is faulty and if there is a repair
procedure (see Technical Note 6015A, Electrical
wiring repair, Wiring: Precautions for repair),
repair the wiring, otherwise replace the wiring

YES
check that there are no electrolyte leaks from the
battery (cracks or breakage).
Check that the mechanical mounting of the battery
is sound (see MR392, Mechanical, 80A, Battery,
Battery: Removal - Refitting ).

Is the battery in good condition?

YES
Disable the engine injection (see 13B or 17B,
Interpretation of commands).
With the starter activated, measure the voltage on
connection BPDA between the + terminal of the
battery, component 107, and the B + of the starter,
component 163.

Is the voltage & gt; 1 V?

NO

A

Temp.mif
V7

16A - 27

STARTING/CHARGING
Charging circuit check: Tests

16A

TEST 2
CONTINUED

A
NO
With the engine running and main beam headlights
and heated rear screen on, measure the voltage
between the battery B +, component 107, and
alternator B +, component 103.

Is the voltage & gt; 0.7 V?

YES

Check the condition and tightness of all the wires
connecting the battery, the alternator and the
starter, and check that all of their terminals are
correctly tightened and secure.
Repair any damaged wires and terminals. If the
connection is faulty and if there is a repair
procedure (see Technical Note 6015A, Electrical
wiring repair, Wiring: Precautions for repair),
repair the wiring, otherwise replace the wiring

NO

With the engine running and main beam headlights
and heated rear screen on, measure the voltage
between the battery negative terminal, component
107, and the alternator frame, component 103.
Is the voltage & gt; 0.7 V?

YES

Repair any damaged wires and terminals. If the
connection is faulty and if there is a repair
procedure (see Technical Note 6015A, Electrical
wiring repair, Wiring: Precautions for repair),
repair the wiring, otherwise replace the wiring

NO

The electrical circuit is in order.

Temp.mif
V7

Check the earths of the engine, alternator, chassis,
gearbox, battery or starter (tightness, condition of
terminals, condition of wires).

16A - 28

STARTING/CHARGING

16A

Charging circuit check: Tests

TEST 3

Battery condition test

Applicability: All types

NOTES

Switch off the ignition before carrying out this test

Check whether or not the engine has been running during the previous hour.
Has the engine been running in the last hour?
NO

YES
Stop the engine and remove the key to interrupt the + after ignition supply and switch on the
main beam headlights for 2 minutes. Then switch the headlights off and wait for 2 minutes.

Carry out a battery test using the MIDTRONICS instrument (the information requested by the MIDTRONICS
instrument is provided on the battery plate: see page 16A-4)
What message does the MIDTRONICS instrument display?

The
instrument
does not
switch on.

" Battery OK +
recharge " , or
" charge + retest "

" Battery
good "

Test the
instrument on
another
battery

Recharge the
battery (see
Technical Note
6512A, Battery
charging).

The
battery is
sound.

Is the
instrument
working?
NO

A

NO

" Test
impossible "

Is the message
appearing for the
first time?

YES

C

" Incorrect component " or
" Replace battery "

YES

B
Carry out test 5 to locate any high consumers
of electrical current

Replace the
instrument
Carry out test 4 to test the alternator flow rate.

Temp.mif
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16A - 29

STARTING/CHARGING

16A

Charging circuit check: Tests

TEST 3
CONTINUED

A

B

NO

YES

Was the test carried out with the battery
disconnected?
YES

NO

Disconnect both
terminals of the battery.

C
YES

Replace the battery with another battery of the same electric
specifications and size (see Repair Manual corresponding to
the vehicle, Mechanical, 80A, Battery, battery: Removal Refitting ).
Start the vehicle again.
Does the engine start?

NO

YES
The battery is sound.

Carry out test 5 to locate any high
consumers of electrical current

Carry out test 4 to test the alternator
flow rate.

Temp.mif
V7

16A - 30

STARTING/CHARGING

16A

Charging circuit check: Tests

TEST 4

Test the alternator supply

Application: All types

NOTES

Test the condition of the battery (T3).

Measure the voltage at the battery terminals with the engine warm and running at idle speed and with all consumers
switched off.
Voltage value?
& lt; 14.8V

& gt; 14.8V
Replace the alternator (see Repair Manual for the corresponding vehicle,
16A, Starting-Charging, Alternator: Removal - Refitting). Visually
inspect the consequences (battery condition, corrosion, etc.).

With the engine at idle speed, connect a current clamp to the alternator B+ wire with all consumers switched off.

Current & lt; 5 A

Replace the alternator (see
Repair Manual for the
corresponding vehicle, 16A,
Starting-Charging,
Alternator: Removal Refitting).

Current between 5A and 35A

Keep the engine speed at
3000 rpm and still with no
consumers switched on.

Current & gt; 35A

Check that there are no
electrical components
consuming an abnormal
amount of current.
Disconnect the fuses one by
one to identify the consumer.

Value of measured current? (i 1)

Keep the engine speed at 3000 rpm with all consumers switched on.
Main beam headlights, de-icing, passenger compartment ventilation.
Value of measured current? (i 2)

A

Temp.mif
V7

16A - 31

STARTING/CHARGING

16A

Charging circuit check: Tests

TEST 4
CONTINUED

A

Compare i 1 and i 2

i 2 & gt; i 1 + 5A

i 2 & lt; i 1 + 5A

The alternator flow rate is correct

Replace the alternator (see Repair
Manual for the corresponding vehicle,
16A, Starting-Charging, Alternator:
Removal - Refitting).

Stop the engine
Value of the electrical current?

& gt; 1A

& lt; 1A

Replace the alternator (see Repair
Manual for the corresponding vehicle,
16A, Starting-Charging, Alternator:
Removal - Refitting).

Alternator is correct

Temp.mif
V7

16A - 32

STARTING/CHARGING

16A

Charging circuit check: Tests

TEST 5

High consumption of electrical current check

Application: All types

Use a current clamp.
If it is difficult to hold several cables, use the tool ELE 1806 which fits onto the battery
negative terminal in series.

NOTES

Preparation of the vehicle before carrying out the test to check for high electrical current consumers

Open the bonnet.

If necessary, fit the tool ELE 1806 to the battery negative terminal.

Fit the current clamp around the tool.

Start the vehicle and allow the engine to run at idle speed for approximately 1 minute, then stop.

Wait 40 minutes for the vehicle to shut down.

Current consumed & lt; 30 mA
NO

YES
Vehicle is correct

Leave the vehicle deactivated

Remove the fuses 1 to 1 and check the amount of current consumed

Temp.mif
V7

16A - 33


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