17B-176V2 MR-376-X76-17B050$110.mif
PETROL INJECTION
Fault finding – Interpretation of statuses17B
V42 Injection
Program No.: 2A
Vdiag No.: 04, 05, 06,
14, 16, 18
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.
ET759BRAKING MULTIPLEX SIGNAL DETECTED
STATUS DEFINITIONABSENT: This status indicates that the braking multiplex signal detected is absent.
PRESENT: This status indicates that the braking multiplex signal detected is present.
INTERMEDIATE: This status indicates that the braking multiplex signal detected is
intermediate.
Conformity check: Engine stopped, ignition on or engine running.
Vehicle under + after ignition feed.
– Parking brake released,
– Gear lever in 1
st.
Neither the brake pedal nor the clutch pedal depressed.
Check status ET759.
PRESENT -
INTERMEDIATECheck the correct position and the conformity of the brake pedal sensor.
Run fault finding on the UCH domain (see 87B, UCH).
"ABSENT"The brake pedal sensor is correct.
V42_V04_ET759/V42_V05_ET759/V42_V06_ET759/V42_V14_ET759/V42_V16_ET759/V42_V18_ET759
17B-270
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.
V2 MR-376-X76-17B050$180.mif
PETROL INJECTION
Fault finding – Tests17B
V42 Injection
Program No.: 2A
Vdiag No.: 04, 05, 06,
14, 16, 18
*BVM: Manual gearbox.
*BVA: Automatic gearbox.
TEST 14
CONTINUEDIgnition coil check
K7M engine
Visually inspect the condition of the connectors of the ignition coil, component code 778 (see MR 388 Mechanical,
17A, Ignition, Coils: Removal - Refitting).
If the connector or connectors are faulty and if there is a repair procedure (see Technical Note 6015A, Repairing
electrical wiring, Wiring: Precautions for repair), repair the connector(s), otherwise replace the wiring.
Insert tool Elé. 1808 (1) in the cap of the wire of the plug concerned.
Fit the assembly in the plug well.
Start the engine and let it idle.
Apply light pressure to the assembly to hold the coil in contact with the tool.
Observe the glow from the electric arc on the spark plug well wall.
If the electric arc is not produced, replace the ignition coil (see MR 388 Mechanical, 17A, Ignition, Coils:
Removal – Refitting).
If the fault is still present, contact the techline.
D4D engine
– Switch on the vehicle + after ignition feed.
– Run command VP036 FUEL SUPPLY INHIBITION.
Put the vehicle under starting conditions:
– position of gear lever in neutral for a manual gearbox* or position "P" (Parking) for an automatic gearbox*.
– brake pedal depressed.
– Run command RZ003 ENGINE ADAPTIVES.
Remove the plugs from each cylinder and check, one after another, that sparks are present by bringing the plug
close to a chassis earth, with the starter engaged. If no spark is produced, replace the ignition coil, component
code 778 (see MR 388 Mechanical, 17A, Ignition, Coils: Removal – Refitting).
If the fault is still present, contact the techline.
