Test D: The Message Center Switch Does Not Operate Correctly

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

D1-D2:

D3-D5:

Normal Operation
The message center switch assembly uses circuits 231 (BK/YE) and 1411 (GY/OG) to communicate the requested switch function to the message center.

Possible Causes
- circuit 231 (BK/YE) open or shorted to ground
- circuit 1411 (GY/OG) open or shorted to ground
- instrument cluster
- message center switch