Code Enable Criteria
For DTC to run, engine must have been running for more than 3 seconds. DTC will set when the following conditions are met for up to 30 seconds:
- Ratio of 18X reference pulses to CAM signal pulses received by PCM equals 36:1.
- Ratio of 18X reference pulses to 3X reference pulses received by PCM does not equal 6:1.