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Test 11A - No Response From Radio

  1. 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 11B. If fuse is okay, go to next step.
  2. 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.
  3. 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.
  4. Inspect ground strap and antenna for correct installation. Repair as needed. If ground strap and antenna are okay, replace radio.
  5. 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.
  6. 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 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.
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