P0351

Tests 1 - 2:

Tests 3 - 7:

Tests 8 - 9:

SYMPTOM
P0351-IGNITION COIL #1 CIRCUIT

WHEN MONITORED
With battery voltage greater than 11 volts. during engine. Engine running. Engine RPM less than 8160. No coil in dwell during test.

SET CONDITION
Peak current is not achieved with battery based dwell plus 1.5 msec of diagnostic offset. It takes less than 3 seconds during cranking or up to 6 seconds while running to set. One trip Fault.

POSSIBLE CAUSES
- Intermittent condition
- ASD relay output circuit open
- Capacitor(s) shorted to ground
- ASD output circuit shorted to ground
- Coil on plug
- Coil driver circuit shorted to ground
- Coil driver circuit open
- PCM