Operation CHARM: Car repair manuals for everyone.

Tests AK

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


Test AK1-AK2:






Test AK2-AK4:






Test AK5:






Normal Operation
The message center switch assembly uses circuits 1411 (GY/OG) and 1410 (TN/OG) to communicate the requested switch function to the message center.

Possible Causes
- circuit 1411 (GY/OG) open or shorted
- circuit 1410 (TN/OG) open or shorted
- message center switch assembly
- instrument cluster