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Compass/Mini-Trip Computer Shows CCD

  1. Disconnect Compass/Mini-Trip Computer (CMTC) connector. See COMPONENT LOCATIONS  . Connect a jumper wire between ground and CMTC connector terminal No. 11 (White/Black wire). See Figure . Using scan tool, perform CCD BUS test. If scan tool displays BUS SHORTED TO GROUND, go to next step. If scan tool does not display BUS SHORTED TO GROUND, repair open in White/Black wire. Perform BODY VERIFICATION TEST  under VERIFICATION TESTS.
  2. Turn ignition on. Using a DVOM, measure voltage between ground and CMTC connector terminal No. 6 (White/Black wire). If voltage is greater than 10 volts, go to next step. If voltage is 10 volts or less, repair open in White/Black wire between CMTC module and fuse No. 9 in junction block. Perform BODY VERIFICATION TEST  under VERIFICATION TESTS.
  3. Connect a jumper wire between ground and CMTC connector terminal No. 5 (Violet/Brown wire). Using scan tool, read CCD bus status. If scan tool displays BUS SHORTED TO GROUND, replace CMTC module. See OVERHEAD CONSOLE  under REMOVAL & INSTALLATION. Perform BODY VERIFICATION TEST  under VERIFICATION TESTS. If scan tool does not display BUS SHORTED TO GROUND, repair open in Violet/Brown wire. Perform BODY VERIFICATION TEST  under VERIFICATION TESTS.
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