Check Battery
- Turn ignition switch ON.
- Measure voltage between the battery terminal (+) and the battery terminal (-).
Specification: Above 11V
- Is the measured voltage within specification?
YES
- Substitute with a known - good ECM and check for proper operation. If the problem is corrected, replace ECM and go to "VERIFICATION OF VEHICLE REPAIR ".
NO
- Repair or replace it which has a problem, and go to "VERIFICATION OF VEHICLE REPAIR ".