Check For An Open Circuit
- Ignition switch OFF.
- Disconnect the alternator and ECM connector.
- Measure the resistance from the both of alternator signal terminal in the harness connector.
Specification: Approx. 0Ω
- Is the measured resistance within specification?
YES
- Go to "CHECK SHORT TO BATTERY IN CIRCUIT ".
NO
- Repair or replace as necessary and then, go to "VERIFICATION OF VEHICLE REPAIR ".