Tests AH

PINPOINT TEST AH: THE MESSAGE CENTER SWITCH DOES NOT OPERATE CORRECTLY

Test AH1-AH3:

Test AH4-AH5:

Normal Operation
The message center switch communicates the requested switch function to the instrument cluster through circuits 1411 (GY/OG) and 1396 (VT/WH).

Possible Causes
- circuit 1396 (VT/WH) open or shorted to ground
- circuit 1411 (GY/OG) open or shorted to ground
- instrument cluster
- message center switch