P1612-Maximum Governor Speed Deviation - Fuel Limiting: Notes
- When Monitored : Ignition on.
- Set Condition : Just after key on, the throttle is opened and closed to test the system. If the Throttle Position Sensor (TPS) does not quickly exceed a calibrated value this DTC will set. One trip fault.
| Possible Causes |
|---|
| THROTTLE PLATE STUCK AT OR BELOW LIMP HOME POSITION |
| THROTTLE CONTROL MOTOR 2 CIRCUIT SHORT TO VOLTAGE |
| THROTTLE CONTROL MOTOR 1 CIRCUIT OPEN |
| THROTTLE CONTROL MOTOR 2 CIRCUIT OPEN |
| THROTTLE CONTROL MOTOR 1 CIRCUIT SHORT TO GROUND |
| THROTTLE CONTROL MOTOR 2 CIRCUIT SHORT TO GROUND |
| THROTTLE BODY |
| POWERTRAIN CONTROL MODULE |
For a complete Powertrain Control Module Circuit Diagram,