P0351

Tests 1 - 2:

Tests 3 - 7:

Tests 8 - 12:

Tests 13 - 17:

Tests 18 - 19:

SYMPTOM
P0351 - IGNITION COIL # 1 PRIMARY CIRCUIT

WHEN MONITORED
With battery voltage greater than 8 volts during cranking or greater than 12 volts with the engine running, and none of the coils in dwell when checked.

SET CONDITION
Peak current is not achieved with 2.5 ms of dwell. It takes 3 seconds during cranking or up to 6 seconds while running to set

POSSIBLE CAUSES
- No possible causes remaining
- ASD relay output circuit open/high
- Ignition coil connector observable defect
- Ignition driver circuit open
- Ignition coil driver circuit open
- Ignition coil driver circuit shorted to ground
- Ignition coil wiring harness intermittent defect
- Ignition coil wiring harness observable defect
- Powertrain Control Module defective