Oxygen Sensor

Condition(s):

DTC P0151 O2 sensor circuit low voltage (Bank 2 sensor 1)

Possible Source(s):
- O2 sensor failure
- Sensor ground fault
- Harness failure
- Connector pin(s) bent, loose or corroded

Action(s) to take:
- GO to Pinpoint Test E P0155

DTC P0152 O2 sensor circuit high voltage (Bank 2 sensor 1)

Possible Source(s):
- O2 sensor failure to B+
- Sensor ground fault
- Harness failure
- Connector pin(s) bent or tracking between connections.
- O2 sensor failure

Action(s) to take:
- GO to Pinpoint Test E P0155

DTC P0153 O2 sensor circuit slow response (Bank 2 sensor 1)

Possible Source(s):
- O2 sensor heater failure/out of spec
- Sensor ground fault
- Harness failure
- Connector pin(s) bent or tracking between connections.
- Low exhaust temperature
- O2 sensor failure

Action(s) to take:
- GO to Pinpoint Test F P0153

DTC P0155 O2 sensor heater circuit malfunction (Bank 2 sensor 1)

Possible Source(s):
- O2 sensor failure
- Harness failure
- Connector pin(s) bent or tracking between connections.
- ECM failure

Action(s) to take:
- GO to Pinpoint Test E P0155

DTC P0157 O2 sensor circuit low voltage (Bank 2 sensor 2)

Possible Source(s):
- O2 sensor failure
- Sensor ground fault
- Harness failure
- Connector pin(s) bent, loose or corroded

Action(s) to take:
- GO to Pinpoint Test G P0157

DTC P0158 O2 sensor circuit high voltage (Bank 2 sensor 2)

Possible Source(s):
- O2 sensor failure to B+
- Sensor ground fault
- Harness failure
- Connector pin(s) bent or tracking between connections.
- ECM failure

Action(s) to take
- GO to Pinpoint Test G P0157

DTC P0160 O2 sensor circuit no activity detected (Bank 2 sensor 2)

Possible Source(s):
- O2 sensor failure/out of spec
- Sensor ground fault
- Harness failure
- Connector pin(s) bent or tracking between connections.
- Low exhaust temperature

Action(s) to take:
- GO to Pinpoint Test H P0160

DTC P0430 Catalyst system efficiency be low threshold (bank 2)

Possible Source(s):
- Downstream O2 sensor failure
- Catalyst failure
- Catalyst low temperature caused by water splash

Action(s) to take:
- GO to Pinpoint Test G P0157
- GO to Pinpoint Test H P0160