DTC P1549: Inspection

Alternator Inspection 

NOTE:  Since there is no direct method to test the inspection item, troubleshooting is performed using a known-good component.

Test Procedure 

• Install a known-good alternator and attempt to reproduce the failure.

Results 

• If the failure is reproduced, there is a problem with the PCM.
• If the symptom/DTC goes away, the alternator must be faulty.