Possible Causes
NOTE: The listed causes may not be a complete list of all potential problems and there may be other causes.
- Blown ignition coil fuse
- Ignition coil fuse circuit open or shorted
- Poor electrical connection in ignition coil fuse circuit
- Faulty Engine Control Module (ECM)
Description
The ignition system uses an individual ignition coil for each cylinder. The Engine Control Module (ECM) monitors the ignition voltage from the fuse to individual coils. The Diagnostic Trouble Code (DTC) will be set if the ECM detects less than 2.5 V on the ignition coil supply voltage circuit.
How to Repair
Check the “Possible Causes” listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.
Possible Symptoms
- Illuminated engine light (or service engine soon warning light illuminated)