DME 7.8

P0130

02 Sensor Circuit

NOTE: The diagnosis for this fault is different for models with turbo engines and models with naturally-aspirated engines.

Diagnosis/troubleshooting - all turbo models

NOTE: The DTC (diagnostic trouble code) covers all electrical faults here.

Diagnostic conditions
- Engine temperature greater than 60 °C
- 3 minutes idle speed, then 30 seconds increased idle speed

Possible cause of fault
- Short circuit to B+
- Short circuit to ground
- Open circuit
- Oxygen sensor faulty
- Control module faulty

Affected pins
DME control module connector II, pin 9 and oxygen sensor jack, bank 1, pin 5

DME control module connector II, pin 15 and oxygen sensor jack, bank 1, pin 1

DME control module connector II, pin 2 and pin 5

Diagnosis/troubleshooting

NOTE: Do not use contact spray on the oxygen sensor plug connections as this may cause irreparable damage to the wiring (contamination of the oxygen sensor via the reference air channel).







Diagnosis/troubleshooting - all naturally-aspirated models

NOTE: The DTC relates only to implausible signals here.

Diagnostic conditions
- Battery positive voltage between 10 V and 16 V
- Oxygen sensor heating switched on for at least 60 seconds
- Exhaust temperature less than 800°C

Possible cause of fault
- High-resistance short circuit to B+ in signal wire
- Heater coupling
- Oxygen sensor faulty
- Control module faulty

Affected pins
DME control module connector II, pin 9 and oxygen sensor jack, bank 1, pin 3

DME control module connector II, pin 15 and oxygen sensor jack, bank 1, pin 4

Diagnosis/troubleshooting

NOTE: Do not use contact spray on the oxygen sensor plug connections as this may cause irreparable damage to the wiring (contamination of the oxygen sensor via the reference air channel).

Part 1:

Part 2: