P0351 Ignition Coil # 1 Primary Circuit

SYMPTOM
P-0351 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 while running to set.

POSSIBLE CAUSES
- No possible causes remaining
- ASD relay output circuit open/high
- Ignition coil connector observable defect
- Ignition coil defective
- Ignition coil #1 driver circuit open
- Ignition coil #1 driver circuit short to ground
- Ignition coil driver circuit open
- Ignition coil driver circuit short to ground
- Ignition coil wiring harness intermittent defect
- Ignition coil wiring harness observable defect
- Powertrain control module defective