Test 10A - No Response From Radio
- If radio screen is blank, go to step 5). Remove and inspect fuse No. 1 in junction block. Junction block is behind right kick panel. If fuse is open, go to TEST 10B. If fuse is okay, go to next step.
- Install fuse. Disconnect radio Gray connector. Using scan tool in voltmeter mode, measure voltage at terminal No. 7 (Red/White wire) on radio Gray connector. If voltage is 10 volts or less, repair open Red/White wire. If voltage is more than 10 volts, go to next step.
- Using scan tool in voltmeter mode, measure voltage at terminal No. 6 (Red/Gray wire) on radio Gray connector. If voltage is 10 volts or less, repair open Red/Gray wire. If voltage is more than 10 volts, go to next step.
- Inspect ground strap and antenna for correct installation. Repair as needed. If ground strap and antenna are okay, replace radio.
- Disconnect 2-pin CCD BUS connector on back of radio. Connect jumper wire between ground and terminal No. 2 (White/Black wire). 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.
- Move jumper wire to terminal No. 1 (Violet/Brown wire). 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 radio.
NOTE:
For connector terminal ID, see CONNECTOR IDENTIFICATION
and WIRING DIAGRAM. Perform VERIFICATION TEST VER-1 after each repair.
CAUTION:
Always turn ignition off prior to disconnecting any module connector.