FREE REPAIR MANUALS & LABOR GUIDES 1982-2013 Vehicles
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Throttle Position




Condition(s):
DTC P0121 Throttle position sensor A circuit range/performance problem
Possible Source(s):

- Sensor output constant or out of limits Harness open circuit
- Connector loose or corroded

Action(s) to take:
- Go to Pinpoint Test N P0121


DTC P0122 Throttle position sensor A circuit low input
Possible Source(s):
- Sensor open circuit
- Harness failure
- Connector pin(s) bent or tracking
- ECM failure

Action(s) to take:
- Go to Pinpoint Test O P0222


DTC P0222 Throttle position sensor B circuit low input
Possible Source(s):
- Sensor open circuit
- Harness failure
- Connector pin(s) bent or tracking
- ECM failure

Action(s) to take:
- Go to Pinpoint Test O P0222


DTC P0123 Throttle position sensor A circuit high input
Possible Source(s):
- Sensor short circuit to 5V
- Harness short
- Connector pin(s) bent or tracking
- ECM failure

Action(s) to take:
- Go to Pinpoint Test P P0222


DTC P0223 Throttle position sensor B circuit high input
Possible Source(s):
- Sensor short circuit to 5V
- Harness short
- Connector pin(s) bent or tracking
- ECM failure

Action(s) to take:
- Go to Pinpoint Test P P0222