No Response From Compass Mini-Trip Computer (CMTC)
- Ensure ignition is off. Disconnect CMTC connector. Turn ignition on. Using voltmeter, measure voltage between ground and terminal No. 6 (White/Black wire) on CMTC harness connector. If voltage is greater than 10 volts, go to next step. If voltage is 10 volts or less, repair open White/Black wire.
- Connect jumper wire between ground and terminal No. 12 (White/Black wire). Using scan tool, select BODY, BODY COMPUTER, then SYSTEM TEST. Perform CCD BUS test. If scan tool displays BUS SHORTED TO GROUND, go to next step. If scan tool displays BUS SHORTED TO GROUND, repair open White/Black wire.
- Connect jumper wire between ground and terminal No. 6 (Violet/Brown wire). Using scan tool, perform BUS TEST. If scan tool displays BUS SHORTED TO GROUND, replace CMTC. If scan tool displays BUS SHORTED TO GROUND, repair open Violet/Brown wire.