Test 5A - Compass/Mini Trip Computer Displaying "No Response"
- Turn ignition off. Disconnect Compass/Mini Trip Computer (CMTC) 6-pin connector. Turn ignition on. Using scan tool in voltmeter mode, measure voltage on terminal No. 1 (Yellow/Dark Green wire). If voltage is 10 volts or less, repair open Yellow/Dark Green wire. If voltage is more than 10 volts, go to next step.
- Connect jumper between CMTC 6-pin connector, terminal No. 5 (White/Black wire) and ground. Using scan tool, select BODY, BODY COMPUTER, then SYSTEM TEST. Perform CCD BUS test. If scan tool does not display BUS SHORT TO GROUND, repair open White/Black wire. If scan tool displays BUS SHORT TO GROUND, go to next step.
- Connect jumper terminal No. 3 (Violet/Brown wire) and ground. Perform CCD BUS test. If scan tool does not display BUS SHORT TO GROUND, repair open Violet/Brown wire. If scan tool displays BUS SHORT TO GROUND, replace CMTC.
NOTE:
For connector terminal identification, refer to CONNECTOR IDENTIFICATION
. For wiring diagrams, refer to WIRING DIAGRAMS
. After each repair, perform TEST VER-1A
.
CAUTION:
Always turn ignition off prior to disconnecting any module connector.
NOTE:
If passenger door module is active on bus, omit first 2 steps in following test.