P1396 – Ignition Coil Driver Overcurrent
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Symptoms
- Misfire
- Engine hesitation
- ECU protection mode
Causes
- Shorted coil
- Wiring short
- ECU driver issue
Diagnosis
- Measure coil current
- Inspect wiring
- Test coil
Repair
- Replace coil
- Repair wiring
- Repair ECU driver