Component Inspection
- Turn "OFF" the ignition switch.
- Measure resistance between High signal terminal and Low signal terminal of ECM connector (ECM side).
Specification : Approx. 110~130Ω
- Is the measured resistance within specification?
YES
- Check for poor connection between ECM and component: backed out terminal, improper mating, broken locks or poor terminal to wire connection. Repair as necessary and go to "VERIFICATION OF VEHICLE REPAIR " procedure.
NO
- Check ECM for contamination, deterioration, or damage. Substitute with a known-good ECM and check for proper operation. If the problem is corrected, replace ECM and then go to "VERIFICATION OF VEHICLE REPAIR " procedure.