P0050
P0050
Diagnosis information - DME V8 DFI
Driver for oxygen sensor heater ahead of catalytic converter, bank 2
NOTE: Do not use contact spray on the oxygen sensor's plug connections as this will result in irreparable damage to the lines (blockage of
reference air duct).
NOTE: Do not interchange the oxygen sensor ahead of catalytic converter with the sensor behind the catalytic converter as this will result in
implausible fault entries.
Diagnostic conditions
- Vehicle voltage > 9 V
- Engine running > 10 seconds
2010 Porsche Cayenne Turbo (9PA) V8-4.8L Turbo Page 10
Possible fault causes
- Short circuit to B+
- Short circuit to ground
- Open circuit in line
- Fuse FE 17 faulty (fuse carrier in plenum panel E-box)
- Loose contact in connector
- Oxygen sensor faulty
Affected contacts on the DME control unit connector
Connector [A]:
- Contact 46
Affected contacts on the oxygen sensor connector behind catalytic converter, bank 2:
- Contact 3