DTC P0A3B Generator/Alternator Over Temperature: Notes
WARNING: This page is about a different variant/trim than selected.
DTC detecting condition:
Immediately at fault recognition
Trouble symptom:
Charge warning light illuminates.
CAUTION:
- After servicing or replacing faulty parts, perform Clear Memory Ref. to ENGINE (DIAGNOSTICS) (H4DO)>Clear Memory Mode . and Inspection Mode Ref. to ENGINE (DIAGNOSTICS) (H4DO)>Inspection Mode .
- Use the check board when measuring the ECM terminal voltage and resistance.
Wiring diagram:
Engine Electrical System Ref. to WIRING SYSTEM>Engine Electrical System .
- CHECK GENERATOR
.
Check the generator vent window.
Is there clogging with foreign objects?
- Yes: Eliminate the foreign objects and leave the generator main body intact approx. 20 minutes to cool down.
- No: Go to 2.
- CHECK CHARGE WARNING LIGHT
.
Turn the ignition switch to OFF and leave the engine intact for 20 minutes or more before starting.
Does the charge warning light remain on?
- Yes: Replace the generator. Ref. to STARTING/CHARGING SYSTEMS(H4DO)>Generator .
- No: This is a temporarily overheating of the generator. It is now back to normal state. Check for clogging with foreign objects in the proximate area such as the generator vent window.