System Inspection
- IG "OFF" and disconnect ignition coil connector.
- Measure resistance between power and signal terminals of ignition coil connector (Measurement "A").
- Measure resistance between power terminal of ignition coil connector and out terminal of secondary ignition coil (Measurement "B").
Specification:
Resistance (Ω) "A" Primary Coil "B" Secondary Coil 750 mΩ ± 15% 5.9 kΩ ± 15% - Is the measured resistance within specification?
YES
- Substitute with a known - good ECM/PCM and check for proper operation. If the problem is corrected, replace ECM/PCM and go to VERIFICATION OF VEHICLE REPAIR procedure.
NO
- Substitute with a known - good Ignition Coil and check for proper operation. If the problem is corrected, replace Ignition Coil and go to "VERIFICATION OF VEHICLE REPAIR " procedure.