Test Description
NOTE:
Test numbers refer to numbers on diagnostic chart.
- If engine starts at this time, code is intermittent.
- This step determines if PCM is sending out a signal to distributor for processing. If this signal is not available or is shorted to ground or voltage, distributor cannot ground it to produce reference pulses.
- If Code 41 and/or 42 is also set with Code 16 and no external fault can be found, replace PCM. If only Code 16 is set and distributor connections are okay, replace distributor.