PETROL INJECTION
Fault finding - Interpretation of statuses
17B
17B - 176
PETROL INJECTION
Fault finding - Interpretation of statuses
17B
17B - 176V9 MR-372-J84-17B050$611.mif
S3000 Injection
Program No.: AD
Vdiag No.: 4C / 54
ET056
CONTINUED 1
Check the cleanliness and condition of the downstream oxygen sensor connections.
Repair if necessary.
Check for the + 12 V feed on track A of the downstream oxygen sensor connector with the ignition on.
If +12V is not present:
– disconnect the battery,
– check the cleanliness and condition of the connections.
Using the universal bornier, check the continuity on the following connection:
Injection computer, connectorB, track M2 track A of the downstream oxygen sensor
Protection and Communication Unit,
connector CT1, track 4
Repair if necessary.
Disconnect the battery and the injection computer.
Check the cleanliness and condition of the connections.
Using the Universal bornier, check the insulation and continuity of the following connections:
Injection computer, connectorC, track B2 track D of the downstream oxygen sensor
Injection computer, connectorC, track A2 track C of the downstream oxygen sensor
Injection computer, connectorC, track L3 track B of the downstream oxygen sensor
Repair if necessary.
Measure the heating resistance of the downstream oxygen sensor between tracks A and B.
Replace the sensor if the resistance is not approximately 9Ω at 20°C.
Check the condition and for secure fitting of the downstream oxygen sensor.
If the vehicle is normally driven in urban conditions, there is a risk of contamination of the oxygen sensor.
AFTER REPAIRRepeat the conformity check from the start.
