Component Inspection
- Replace alternator.
- Ignition switch is turned "OFF".
- Connect GDS to Data Link Connector (DLC).
- Clear DTC and Test-drive under enable conditions above-mentioned.
- Check the "DTC".
- Does the GDS show DTC "P0A1A00"?
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 " procedure.
NO
- Substitute with a known-good alternator and check for proper operation. If the problem is corrected, replace alternator and go to "VERIFICATION OF VEHICLE REPAIR " procedure.