13B-138
AFTER REPAIRDeal with any faults. Clear the faults from the computer memory.
Switch off the ignition and carry out a road test followed by a test with the diagnostic
tool.
V1 MR-376-X76-13B000$100.mif
DIESEL INJECTION
Fault finding – Interpretation of statuses13B
DCM 1.2 Injection
Program no.: 4C
Vdiag No.: 08
ET122
CONTINUED 2
STATUS ACTIVE: Brake pedal released.
– Check the condition and fitting of the brake light switch, the brake lights fuse and the conformity of the bulbs.
– Remove and test the operation of the brake light switch:
Only for K9K 714, 718, 740
enginesContinuity between connections:Insulation between
connections:
Switch depressed (Brake pedal
released)5A and AP10 65A and AP10
Switch released (Brake pedal
depressed)65A and AP10 5A and AP10
Only for K9K 790, 792, 794, 796
enginesContinuity between connections:Insulation between
connections:
Switch depressed (Brake pedal
released)5A and AP1 65A and AP1
Switch released (Brake pedal
depressed)65A and AP1 5A and AP1
If the connection or connections are faulty and if there is a repair procedure (see Technical Note 6015A
(Renault) or Technical Note 9804A (Dacia), Electrical wiring repair, Wiring: Precautions for repair), repair
the wiring, otherwise replace it.
– If necessary, replace the switch (see MR 388 (Logan/Sandero), MR 451 (Duster), MR 423 (Thalia 2/Symbol
2) or MR 374 (Kangoo VLL), Mechanical, 37A, Mechanical component controls, Brake pedal: Removal -
Refitting).
– Check the insulation to + 12 V of connection 5A between the brake light switch connector and the computer
connector.
13B-187V1 MR-376-X76-13B000$160.mif
DIESEL INJECTION
Fault finding – Tests13B
DCM 1.2 Injection
Program no.: 4C
Vdiag No.: 08
TEST 1 Low pressure circuit check
Check the conformity of the low pressure circuit
connections
Are the low pressure circuit connections correct? Carry out the necessary repairs.
Check the condition of the priming bulb, and that it is
working properly.
Look for leaks at the unions.
Are there leaks from the hoses and unions? Carry out the necessary repairs
Check that there are no air bubbles in the diesel fuel. Bleed the low-pressure circuit.
Place a container under the filter.
– Disconnect the return hose from the filter
and plug the filter.
– Pump using the priming bulb until there is no
air left.
– Reconnect the return hose immediately. Check if there are air bubbles in the low pressure
circuit.
Low pressure circuit correct.
NO
YES
YES
NO
YES
NO
DCM1.2_V08_TEST01
