Conditions Which Generate This Code:
The signal from the secondary engine speed/timing sensor is intermittent or lost for less than one second.
System Response:
The Electronic Control Module (ECM) will log the diagnostic code.
There should not be a noticeable change in engine response unless the signal for the primary engine speed/timing sensor is lost. The loss of signals from both speed/timing sensors will shut down the engine.
The engine may misfire or the engine may run rough during starting.
Test Step 1. Perform the following diagnostic procedure: Engine Speed/Timing Sensor Circuit – Test
Results:
- OK – STOP