Page 337 of 348

17B-337V7 MR-413-X44-17B000$190.mif
PETROL INJECTION
Fault finding – Interpretation of commands17B
SIM 32 Injection
Program no.: D3
Vdiag No.: 44, 4C, 50
and 54
AC180AIR CONDITIONING COMPRESSOR RELAY CONTROL
NOTESSpecial notes:
There must be no present or stored faults.
Use the Wiring Diagrams Technical Note for NEW TWINGO, E33, CLIO III
or MODUS.
Check the condition of the connectors of the air conditioning compressor clutch relay (component code 584) and
of the engine management computer (component code 120).
If the connector or connectors are faulty and there is a repair procedure (see Technical Note 6015A, Electrical
wiring repair, Wiring: Precautions for repair), repair the connector, otherwise replace the wiring.
With the ignition, check for + 12 V on connection 3FB of the air conditioning compressor clutch relay and the
earthing of connection 38K on the injection computer connector.
Use the universal bornier to check the insulation and continuity of the following connections:
●3FB between components 584 and 238,
●38K between components 584 and 120.
If the connection or connections are faulty and there is a repair procedure (see Technical Note 6015A, Electrical
wiring repair, Wiring: Precautions for repair), repair the wiring, otherwise replace it.
If the control still does not operate, run a diagnostic check on the Heating system.
(see 62A, Heating, 62B, Climate control or 62C, Manual air conditioning).
SIM32_V44_AC180 / SIM32_V4C_AC180 / SIM32_V50_AC180 / SIM32_V54_AC180
AFTER REPAIRIf the throttle valve has been replaced, reinitialise the RZ005 programming.
Carry out a road test, then check with the diagnostic tool.
Page 340 of 348

17B-340V7 MR-413-X44-17B000$210.mif
17B
SIM 32 Injection
Program no.: D3
Vdiag No.: 44, 4C, 50
and 54
ALP1 No dialogue with the computer
NOTESUse the Wiring Diagrams Technical Note for NEW TWINGO, E33, CLIO III
or MODUS.
Test the diagnostic tool on another vehicle which is in perfect working order.
Check that the sensor's green indicator light comes on.
If communication with the second vehicle is impossible, follow the instructions in the CLIP diagnostic tool test
section.
If communication with the second vehicle is impossible, follow the instructions in the Vehicle check section.
DIAGNOSTIC
TOOL CHECKCheck the cleanliness and condition of the diagnostic socket contacts on
the vehicle.
Check the condition of the cable from the diagnostic socket to the sensor and
the cleanliness and condition of the connections.
Check the sensor connections.
Check the condition of the cable from the sensor to the CLIP tool, and the cleanliness
and condition of the connections.
Check the cleanliness and condition of the CLIP socket.
If the fault is still present, contact the Techline.
SIM32_V44_ALP01 / SIM32_V4C_ALP01 / SIM32_V50_ALP01 / SIM32_V54_ALP01
PETROL INJECTION
Fault finding – Fault Finding Chart
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.
Repeat the conformity check from the start.
Page 341 of 348

17B-341V7 MR-413-X44-17B000$210.mif
PETROL INJECTION
Fault finding – Fault Finding Chart17B
SIM 32 Injection
Program no.: D3
Vdiag No.: 44, 4C, 50
and 54
ALP1
CONTINUED 1
CHECK
ON
VEHICLE
Check the electrical voltage of the battery.
Check the cleanliness and condition of the battery terminals.
Check the condition of the battery earth cable and ensure that there is a good
electrical connection with the bodywork.
Check the condition of the engine management computer connector
(component code 120).
If the connector is faulty and there is a repair method (see Technical Note 6015A,
Repairing electrical wiring, Wiring: Precautions for repair), repair the connector,
otherwise replace the wiring.
Check the injection computer earth terminal for cleanliness and make sure it is
correctly connected to the bodywork.
Check the 30 A supply fuse of the injection locking relay, and the condition and
cleanliness of the contacts.
Check the 40 A supply fuse of the Protection and Switching Unit and the condition
and cleanliness of the contacts.
Check the injection computer after ignition feed 20 A fuse, and the condition and
cleanliness of the contacts.
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.
Repeat the conformity check from the start.
Page 342 of 348

17B-342V7 MR-413-X44-17B000$210.mif
PETROL INJECTION
Fault finding – Fault Finding Chart17B
SIM 32 Injection
Program no.: D3
Vdiag No.: 44, 4C, 50
and 54
ALP1
CONTINUED 2
CHECK
ON
VEHICLE
(CONTINUED)
Use the Universal bornier to check the following connections on the vehicle
diagnostic socket:
●AP10 between components 225 and 1016 (+ after ignition feed) (for NEW
TWINGO or E33),
●AP10 between components 225 and 1337 (+ after ignition feed) (for CLIO III
or MODUS),
●BP32 between components 225 and 260 (+ Battery feed),
●3BB on component 225 (Earth).
If the connections are 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.
Check the condition of the engine management computer connector (component
code 120).
If the connector is faulty and there is a repair method (see Technical Note 6015A,
Repairing electrical wiring, Wiring: Precautions for repair), repair the connector,
otherwise replace the wiring.
Use the universal bornier to check the continuity of the multiplex communication
lines:
●133B between components 120 and 645 (for NEW TWINGO or E33),
●133C between components 120 and 645 (for NEW TWINGO or E33),
●133B between components 120 and 1337 (for CLIO III or MODUS),
●133C between components 120 and 1337 (for CLIO III or MODUS).
If the connections are 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, perform fault finding on the multiplex network (see 88B,
Multiplexing).
Disconnect the earth terminal of the computer from the negative battery terminal.
Check for an earth on connection N of the injection computer.
Check the continuity and insulation of the following connection:
●BP between components 120 and 107.
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 it.
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.
Repeat the conformity check from the start.