2009 RENAULT TWINGO Engine Starting Charging Workshop Manual

16A-9V2 MR-413-X44-16A000$750.mif
STARTING-CHARGING
Fault finding – Fault finding charts16A
New Twingo
ALP1
CONTINUED 2
Measure the voltage on connection BPDA between the earth taken on one of the starter mounting points and its
B+ terminal while activating the starter.
Voltage value?
Measure the drop in voltage on connection
BPDA between the battery + terminal and
the starter B+ terminal while activating the
starter.
Replace the wire connecting the
battery + terminal to the starter.
Voltage value?
Measure the drop in voltage between the
battery - terminal and the earth on one of
the starter mounting points while activating
the starter.
Replace the earth wire(s) connecting
the engine to the battery.
Voltage value?
Replace the starter (see MR 411, 16A, Starting - Charging, Starter: Removal - Refitting).
B
> 10 VBetween 0 V and 10 V
≥ 1 V
< 1 V
≥ 1 V
< 1 V

16A-10V2 MR-413-X44-16A000$750.mif
STARTING-CHARGING
Fault finding – Fault finding charts16A
New Twingo
ALP1
CONTINUED 3
Use the diagnostic tool to check DEF 062 of
the starter relay control circuit (see 87B,
Passenger compartment connection unit,
Interpretation of faults).
Is the fault present?Fault on connection 1B between components
597 and 645 (see 87B, Passenger
compartment connection unit,
Interpretation of faults). If there is a repair
method (see Technical Note 6015A,
Repairing electrical wiring, Wiring:
Precautions for repair) repair the wiring,
otherwise replace it.
Check the starting conditions (see 87B,
Passenger compartment connection unit,
Interpretation of statuses).
Is ET046 immobiliser active?Starting conditions fault (see 87B, UCH,
Interpretation of statuses).
With the ignition on, check for 12 V between
connections AP29 and 1B of the relay
connector, component 232, located on the
engine relay box, component 597.
Is there 12 V?Check the continuity and/or the insulation of
connections 1B between components 232 and
645, or of connection AP29 of components 232
and 1016.
If the connection is faulty and if there is a repair
procedure (see Technical Note 6015A,
repairing electrical wiring, wiring:
Precautions for repair), repair the wiring
otherwise change the wiring.
Check for 12 V on relay 232 between
connection D of component 232 and a chassis
earth when starting is requested.
Is there 12 V?Check the continuity and/or the insulation of
connection D between components 232
and 104.
If the connection is faulty and if there is a repair
procedure (see Technical Note 6015A,
repairing electrical wiring, wiring:
Precautions for repair), repair the wiring
otherwise change the wiring.
C
YES
NO
YES
NO
NO
YES
NO
YES
D

16A-11V2 MR-413-X44-16A000$750.mif
STARTING-CHARGING
Fault finding – Fault finding charts16A
New Twingo
ALP1
CONTINUED 4
Check for 12 V on relay 232 between
connection 1A of component 232 and a
chassis earth when starting is requested.
Is there 12 V?Replace the starter relay (see MR 411
Mechanical, 81C, FUSES, Engine
compartment fuse and relay box: List and
location of components).
Continuity and/or insulation fault on
connection 1A between components 232 and
163. If there is a repair method (see Technical
Note 6015A, Repairing electrical wiring,
Wiring: Precautions for repair) repair the
wiring, otherwise replace it.
D
YES
NO
YES

16A-12V2 MR-413-X44-16A000$750.mif
STARTING-CHARGING
Fault finding – Fault finding charts16A
New Twingo
ALP2 The starter turns but does not engage
NOTESSpecial notes:
Disconnect the battery earth before handling.
Remove the starter (see MR 411 Mechanical, 16A, Starter: Removal - Refitting).
Check that the ring gear of the flywheel is in good condition.
Are the ring gear teeth damaged?
Replace the flywheel (see MR 411, Mechanical, 10A,
Flywheel: Removal - Refitting).
Check the condition of the starter (broken teeth or
worn gears).
Is the starter in good condition?
Replace the starter (see MR 411
Mechanical, 16A, Starter: Removal -
Refitting).
Refit the starter (see MR 411 Mechanical, 16A,
Starter: Removal - Refitting).
YESNO
NO
YES

16A-13V2 MR-413-X44-16A000$750.mif
STARTING-CHARGING
Fault finding – Fault finding charts16A
New Twingo
ALP3 The starter is noisy when starting
NOTESTest the condition of the battery (see MR 413, 80A, Battery).
Check that the noise is actually coming from the starter.
Try to start the engine.
At what point is the noise heard?
Starting phase Just after the engine has started
Check if the starter is
insufficiently secured
Is the starter correctly secured?Tighten the starter mountings (see MR 411, 16A,
Starter: Removal - Refitting).
Remove the starter and check that the centring
pin is present. Check the condition of the pinion
and check the entire ring gearInhibit the engine injection (see 13B or 17B,
Interpretation of commands), activate the
starter for 2 seconds and release the key.
Is a fault noticed?Does the starter continue to run after the key is
released?
NO
YES
YES
A
NO
B
YES
C
NO
D

16A-14V2 MR-413-X44-16A000$750.mif
STARTING-CHARGING
Fault finding – Fault finding charts16A
New Twingo
ALP3
CONTINUED
Fit a centring pin, or replace the
flywheel (see MR 411,
Mechanical, 10A, Flywheel:
Removal - Refitting), or replace
the starter (see MR 411, 16A,
Starter: Removal - Refitting).Starter control fault, check the entire
starter control line (see ALP1
continued 3 "C").
Replace the starter (see MR 411, 16A Starter:
Removal - Refitting).
Make several attempts, waiting for 5 minutes
after 5 attempts (let the starter cool). If the result
is still the same after several attempts, replace
the starter (see MR 411, 16A, Starter:
Removal – Refitting).
A
YES
B
NO
C
YES
D
NO

16A-15V2 MR-413-X44-16A000$750.mif
STARTING-CHARGING
Fault finding – Fault finding charts16A
New Twingo
ALP4The starter rotates slowly from the outset.
The rotation speed of the starter decreases rapidly.
The starter causes the warning lights on the instrument panel to
become very dim
Applicability: All types
NOTESTest the wiring (TEST3).
Test the status of the battery (see 80A, Battery).
If the fault is still present, replace the starter (see MR 411, 16A, Starting - Charging, Starter: Removal -
Refitting).

16A-16V2 MR-413-X44-16A000$875.mif
16A
New Twingo
NOTESPerform this test only after running complete fault finding on the UCH using the
diagnostic tool (see 87B, UCH).
Because the UCH houses the CHARGING CIRCUIT function (sub-function: alternator)
and checks the alternator via a serial connection (BSS).
CHARGING
ALTERNATOR SUPPLY TEST TEST1
STARTING-CHARGING
Fault finding – Tests