air condition RENAULT TWINGO 2009 2.G Engine Diesel Injection Owner's Guide

13B-61
AFTER REPAIRDeal with any faults displayed by the diagnostic tool.
Clear the computer fault memory.
Carry out a road test followed by another check with the diagnostic tool.
V6 MR-413-X44-13B000$100.mif
DIESEL INJECTION
Fault finding – Interpretation of faults13B
DCM 1.2 Injection
Program No.: 4D
Vdiag No.: 48, 4C, 50,
54, 58, 5C
DF028
PRESENT
OR
STOREDCYLINDER 3 INJECTOR CONTROL CIRCUITC0: Open circuit
CC: Short circuit
1.DEF: At minimum stop
2.DEF: At maximum stop
NOTESConditions for applying fault finding procedures to stored faults:
The fault is present with the engine idling.
Special notes:
When fault DF028 occurs, the idle speed is locked at 1000 rpm, there is engine noise,
the engine speed is unstable, the engine performance is reduced to 75%, the level 1
warning light illuminates, and the message Check injector is displayed until the next
time the ignition is switched off.
See the Technical Note Wiring Diagrams for the vehicle.
C0 - CC
NOTESNone.
Switch off the ignition and wait 15 seconds.
Check the connection and condition of the cylinder 3 injector connector, component code 1954.
Check the connection and condition of connector B (48-track) of the injection computer, component code 120.
If the connector(s) is faulty and if there is a repair procedure (see Technical Note 6015A, Repairing electrical
wiring, Wiring: Precautions for repair), repair the connector, otherwise replace the wiring.
Run command AC007 Cylinder 3 injector.
If injector 3 cannot be heard operating five times in a cycle, connect the wire of the cylinder 4 injector to
the cylinder 3 injector and run command AC008 Cylinder 4 injector.
Does this injector actuation cycle work?
Note:
If the wires cannot be swapped, continue the procedure by replying YES to the previous question.
DCM1.2_V48_DF028/DCM1.2_V4C_DF028/DCM1.2_V50_DF028/DCM1.2_V54_DF028/DCM1.2_V58_DF028/DCM1.2_V5C_DF028

13B-64
AFTER REPAIRDeal with any faults displayed by the diagnostic tool.
Clear the computer fault memory.
Carry out a road test followed by another check with the diagnostic tool.
V6 MR-413-X44-13B000$100.mif
DIESEL INJECTION
Fault finding – Interpretation of faults13B
DCM 1.2 Injection
Program No.: 4D
Vdiag No.: 48, 4C, 50,
54, 58, 5C
DF029
PRESENT
OR
STOREDINJECTOR CYLINDER 4 CONTROL CIRCUITC0: Open circuit
CC: Short circuit
1.DEF: At minimum limit
2.DEF: At maximum limit
NOTESConditions for applying fault finding procedures to stored faults:
The fault is present with the engine idling.
Special notes:
When fault DF029 occurs, the idle speed is locked at 1000 rpm, there is engine noise,
the engine speed is unstable, the engine performance is reduced to 75%, the level 1
warning light illuminates, and the message Check injector is displayed until the next
time the ignition is switched off.
See the Technical Note Wiring Diagrams for the vehicle.
C0 - CC
NOTESNone.
Switch off the ignition and wait 15 seconds.
Check the connection and condition of the cylinder 4 injector connector, component code 196.
Check the connection and condition of connector B (48-track) of the injection computer, component code 120.
If the connector(s) is faulty and if there is a repair procedure (see Technical Note 6015A, Repairing electrical
wiring, Wiring: Precautions for repair), repair the connector, otherwise replace the wiring.
Run command AC008 Cylinder 4 injector.
If injector 4 cannot be heard operating five times in a cycle, connect the wire of the cylinder 3 injector to
the cylinder 4 injector and use command AC007 Cylinder 3 injector.
Does this injector actuation cycle work?
Note:
If the wires cannot be swapped, continue the procedure by replying YES to the previous question.
DCM1.2_V48_DF029/DCM1.2_V4C_DF029/DCM1.2_V50_DF029/DCM1.2_V54_DF029/DCM1.2_V58_DF029/DCM1.2_V5C_DF029

13B-67
AFTER REPAIRDeal with any faults displayed by the diagnostic tool.
Clear the computer fault memory.
Carry out a road test followed by another check with the diagnostic tool.
V6 MR-413-X44-13B000$100.mif
DIESEL INJECTION
Fault finding – Interpretation of faults13B
DCM 1.2 Injection
Program No.: 4D
Vdiag No.: 50, 58
DF032
PRESENT
OR
STOREDTHERMOPLUNGER 1 RELAY CONTROL CIRCUIT
NOTESConditions for applying the fault finding procedure to stored faults:
The fault is present when the ignition is switched on.
See the Technical Note Wiring Diagrams for the vehicle.
For New Twingo
Check the connection and condition of the additional heater 1 relay connector, component code 1067 and the 80 A
maxi fuse in the engine fuse and relay box.
Check the connection and condition of the injection computer connector, component code 120.
If the connector(s) is faulty and if there is a repair procedure (see Technical Note 6015A, Repairing electrical
wiring, Wiring: Precautions for repair), repair the connector, otherwise replace the wiring.
Run command AC250 Heating resistor 1 relay.
If the command does not run, check, with the ignition on, for earth on connection 3JA of component 1067.
Check for + 12 V on connection 3FB of component 1067.
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 the wiring.
Check the insulation and continuity of the following connections:
–3JA between components 1067 and 120,
–3FB between components 1067 and 238,
–38LL between components 1067 and 1113,
–BP9 between components 1067 and 597.
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 the wiring.
If the fault is still present, check the relay and replace it if necessary.
If the fault is still present, contact the Techline.
DCM1.2_V50_DF032/DCM1.2_V58_DF032

13B-68
AFTER REPAIRDeal with any faults displayed by the diagnostic tool.
Clear the computer fault memory.
Carry out a road test followed by another check with the diagnostic tool.
V6 MR-413-X44-13B000$100.mif
DIESEL INJECTION
Fault finding – Interpretation of faults13B
DCM 1.2 Injection
Program No.: 4D
Vdiag No.: 50, 58
DF032
CONTINUED
For Mégane II
and Scénic II:
Check the connection and condition of the connector of the additional heater interface unit, component code 1550
and the 70 A maxi fuses on the power supply fuse board.
Check the connection and condition of the injection computer connector, component code 120.
If the connector(s) is faulty and if there is a repair procedure (see Technical Note 6015A, Repairing electrical
wiring, Wiring: Precautions for repair), repair the connector, otherwise replace the wiring.
Run command AC250 Heating resistor 1 relay.
If the command does not run, check for + 12 V on connections BP27 and BP35 of component 1550.
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 the wiring.
Check the insulation and continuity of the following connections:
–3JA between components 1550 and 120,
–3JAA between components 1550 and 120,
–3JAB between components 1550 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 the wiring.
If the fault is still present, check the relay and replace it if necessary.
If the fault is still present, contact the Techline.

13B-69
AFTER REPAIRDeal with any faults displayed by the diagnostic tool.
Clear the computer fault memory.
Carry out a road test followed by another check with the diagnostic tool.
V6 MR-413-X44-13B000$100.mif
DIESEL INJECTION
Fault finding – Interpretation of faults13B
DCM 1.2 Injection
Program No.: 4D
Vdiag No.: 50, 58
DF033
PRESENT
OR
STOREDTHERMOPLUNGER 2 RELAY CONTROL CIRCUIT
NOTESConditions for applying the fault finding procedure to stored faults:
The fault is present when the ignition is switched on.
See the Technical Note Wiring Diagrams for the vehicle.
Check the connection and condition of the additional heater 2 relay connector, component code 1068
and the 80 A maxi fuse in the engine fuse and relay box.
Check the connection and condition of the injection computer connector, component code 120.
If the connector(s) are faulty and if there is a repair procedure (see Technical Note 6015A, Repairing electrical
wiring, Wiring: Precautions for repair), repair the connector, otherwise replace the wiring.
Run command AC251 Heating resistor 2 relay.
If the command does not run, check, with the ignition on, for earth on connection 3JAA of component 1068.
Check for + 12 V on connection 3FB of component 1068.
If the connector is faulty and if there is a repair procedure (see Technical Note 6015A, Repairing electrical
wiring, Wiring: Precautions for repair), repair the connector, otherwise replace the wiring.
Check the insulation and continuity of the following connections:
–3JAA between components 1068 and 120,
–3FB between components 1068 and 238,
–38LM between components 1068 and 1113,
–BP9 between components 1068 and 597.
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 the wiring.
If the fault is still present, check the relay and replace it if necessary.
If the fault is still present, contact the Techline.
DCM1.2_V50_DF033/DCM1.2_V58_DF033

13B-70
AFTER REPAIRDeal with any faults displayed by the diagnostic tool.
Clear the computer fault memory.
Carry out a road test followed by another check with the diagnostic tool.
V6 MR-413-X44-13B000$100.mif
DIESEL INJECTION
Fault finding – Interpretation of faults13B
DCM 1.2 Injection
Program No.: 4D
Vdiag No.: 50, 58
DF034
PRESENT
OR
STOREDTHERMOPLUNGER 3 RELAY CONTROL CIRCUIT
NOTESConditions for applying the fault finding procedure to stored faults:
The fault is present when the ignition is switched on.
See the Technical Note Wiring Diagrams for the vehicle.
Check the connection and condition of the additional heater 2 relay connector, component code 1068
and the 80 A maxi fuse in the engine fuse and relay box.
Check the connection and condition of the injection computer connector, component code 120.
If the connector(s) are faulty and if there is a repair procedure (see Technical Note 6015A, Repairing electrical
wiring, Wiring: Precautions for repair), repair the connector, otherwise replace the wiring.
Run command AC251 Heating resistor 2 relay.
If the command does not run, check, with the ignition on, for earth on connection 3JAA of component 1068.
Check for + 12 V on connection 3FB of component 1068.
If the connector is faulty and if there is a repair procedure (see Technical Note 6015A, Repairing electrical
wiring, Wiring: Precautions for repair), repair the connector, otherwise replace the wiring.
Check the insulation and continuity of the following connections:
–3JAA between components 1068 and 120,
–3FB between components 1068 and 238,
–38LM between components 1068 and 1113,
–BP9 between components 1068 and 597.
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 the wiring.
If the fault is still present, check the relay and replace it if necessary.
If the fault is still present, contact the Techline.
DCM1.2_V50_DF034/DCM1.2_V58_DF034

13B-73
AFTER REPAIRDeal with any faults displayed by the diagnostic tool.
Clear the computer fault memory.
Carry out a road test followed by another check with the diagnostic tool.
V6 MR-413-X44-13B000$100.mif
DIESEL INJECTION
Fault finding – Interpretation of faults13B
DCM 1.2 Injection
Program No.: 4D
Vdiag No.: 48, 4C, 50,
54, 58, 5C
DF038
CONTINUED
5.DEFNOTESNone.
Check the connection and condition of connector B (brown 48-track) of the injection computer, component
code 120.
If the connector is faulty and if there is a repair procedure (see Technical Note 6015A, Repairing electrical
wiring, Wiring: Precautions for repair), repair the connector, otherwise replace the wiring.
Check the insulation and continuity of the following connections:
–3L between components 193 and 120,
–3KW between components 193 and 120,
–3LA between components 194 and 120,
–3KX between components 194 and 120,
–3LB between components 195 and 120,
–3KY between components 195 and 120,
–3LC between components 196 and 120,
–3KZ between components 196 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 the wiring.
If the fault is still present, contact the Techline.

13B-74
AFTER REPAIRDeal with any faults displayed by the diagnostic tool.
Clear the computer fault memory.
Carry out a road test followed by another check with the diagnostic tool.
V6 MR-413-X44-13B000$110.mif
13B
DCM 1.2 Injection
Program No.: 4D
Vdiag No.: 48, 4C, 50,
54, 58, 5C
DF039
PRESENT
OR
STOREDINLET AIR TEMPERATURE SENSOR CIRCUIT
CO.1: Open circuit or short circuit to +12 V
CC.0: Short circuit to earth
NOTESSpecial notes:
When this fault arises, the engine is noisy and a light smoke appears.
See the Technical Note Wiring Diagrams for the vehicle.
IMPORTANT
The Inlet air temperature sensor is absent when the engine is fitted with a flow sensor. In this case, its value is not
a true representation and is fixed on the following engines: K9K766, K9K724 in Vdiag 4C and 50.
It will always be absent on K9K 766, 768, 724 in Vdiag 48, as well as on K9K 768 Vdiag 4C and 50.
ENGINE: K9K 750
Move the wiring between the computer, component code 120 and the injection air temperature and pressure
sensor, component code 1474 to see if the status changes (present stored).
Look for any wiring damage and check the connection and condition of the inlet air temperature and pressure
sensor, component code 1474 and its connections.
If the connector is faulty and there is a repair procedure (see Technical Note 6015A, Repairing electrical wiring,
Wiring: Precautions for repair), repair the connector, otherwise replace the wiring.
If the resistance of the air temperature sensor is not:
15614 Ω ± 828 Ω at -20
°C
5887 Ω ± 283 Ω at 0
°C
2511 Ω ± 108 Ω at 20
°C
1200 Ω ± 47 Ω at 40
°C
612 Ω ± 22 Ω at 60
°C,
replace the air temperature sensor.
Check the insulation and continuity of the following connections:
–3KQ between components 1474 and 120,
–3LQ between components 1474 and 120,
–3LN between components 1474 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 the wiring.
If the fault is still present, replace the inlet air temperature and pressure sensor, component code 1474.
If the fault is still present, contact the Techline.
DCM1.2_V48_DF039/DCM1.2_V4C_DF039/DCM1.2_V50_DF039/DCM1.2_V54_DF039/DCM1.2_V58_DF039/DCM1.2_V5C_DF039
DIESEL INJECTION
Fault finding – Interpretation of faults

13B-75
AFTER REPAIRDeal with any faults displayed by the diagnostic tool.
Clear the computer fault memory.
Carry out a road test followed by another check with the diagnostic tool.
V6 MR-413-X44-13B000$110.mif
DIESEL INJECTION
Fault finding – Interpretation of faults13B
DCM 1.2 Injection
Program No.: 4D
Vdiag No.: 48, 4C, 50,
54, 58, 5C
DF039
CONTINUED
NOTESNone.
ENGINE:
K9K 752, 740, 766,
and 724
Move the wiring between the computer, component code 120 and the inlet air temperature sensor, component
code 272 to see if the status changes (present stored).
Look for any wiring damage and check the connection and condition of the inlet air temperature sensor,
component code 272 and its connections.
If the connector is faulty and there is a repair procedure (see Technical Note 6015A, Repairing electrical wiring,
Wiring: Precautions for repair), repair the connector, otherwise replace the wiring.
If the resistance of the air temperature sensor is not:
49933 Ω ± 6791 Ω at -40
°C
9539 Ω ± 916 Ω at -10
°C
2051Ω ± 123 Ω at 25
°C
810 Ω ± 47 Ω at 50
°C
309 Ω ± 17 Ω at 80
°C
replace the air temperature sensor.
Check the insulation and continuity of the following connections:
–3KQ between components 120 and 272,
–3SH between components 120 and 272.
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 the wiring.
If the fault is still present, replace the inlet air temperature sensor, component code 272.
If the fault is still present, contact the Techline.

13B-76
AFTER REPAIRDeal with any faults displayed by the diagnostic tool.
Clear the computer fault memory.
Carry out a road test followed by another check with the diagnostic tool.
V6 MR-413-X44-13B000$110.mif
DIESEL INJECTION
Fault finding – Interpretation of faults13B
DCM 1.2 Injection
Program No.: 4D
Vdiag No.: 48, 4C, 50,
54, 58, 5C
DF047
PRESENT
OR
STOREDCOMPUTER SUPPLY VOLTAGE
1.DEF: Above maximum threshold
2.DEF: Below minimum threshold
NOTESConditions for applying fault finding procedures to stored faults:
The fault is present when the engine speed is greater than 1000 rpm.
See the Technical Note Wiring Diagrams for the vehicle.
Move the wiring harness between the injection computer, component code 120 and the battery, component
code 107 to see if the status changes (Present Stored).
Look for any wiring damage and check the connection and condition of the battery, component code 107 and its
connections.
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 the wiring.
Measure the battery voltage when the ignition is switched on.
If the battery voltage is less than 11 V, recharge the battery.
Check the condition and connection of the battery terminals and posts, component code 107.
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 the wiring.
Check the vehicle's charge circuit (see 87B, Passenger compartment connection unit for the New Twingo
or see 87G, Engine compartment connection unit for Clio III, Modus, Mégane II, Scénic II, and Kangoo 2).
Check the connection and condition of connector A (black 32-track) of the injection computer, component
code 120.
Check the connection and condition of the injection locking relay connector, component code 238.
Check the connection and condition of the UPC connectors, component code 1337.
If the connector(s) is faulty and if there is a repair procedure (see Technical Note 6015A, Repairing electrical
wiring, Wiring: Precautions for repair), repair the connector, otherwise replace the wiring.
DCM1.2_V48_DF047/DCM1.2_V4C_DF047/DCM1.2_V50_DF047/DCM1.2_V54_DF047/DCM1.2_V58_DF047/DCM1.2_V5C_DF047