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Bus (+) & Bus (-) Shorted Together

  1. Turn ignition off. Disconnect Powertrain Control Module (PCM). See COMPONENT LOCATIONS  . Turn ignition on. If scan tool displays BUS (+) & BUS (-) SHORTED TOGETHER, go to next step. If scan tool does not display BUS (+) & BUS (-) SHORTED TOGETHER, replace PCM. See POWERTRAIN CONTROL MODULE  under REMOVAL & INSTALLATION. Perform BODY VERIFICATION TEST  under VERIFICATION TESTS.
  2. Turn ignition off. Disconnect instrument cluster. Turn ignition on. If scan tool displays BUS (+) & BUS (-) SHORTED TOGETHER, go to next step. If scan tool does not display BUS (+) & BUS (-) SHORTED TOGETHER, replace instrument cluster circuit board. See appropriate INSTRUMENT PANELS article. Perform BODY VERIFICATION TEST  under VERIFICATION TESTS.
  3. Turn ignition off. Disconnect Transmission Control Module (TCM), if equipped. See Figure . Turn ignition on. If scan tool displays BUS (+) & BUS (-) SHORTED TOGETHER, go to next step. If scan tool does not display BUS (+) & BUS (-) SHORTED TOGETHER, replace TCM. See TRANSMISSION CONTROL MODULE  under REMOVAL & INSTALLATION. Perform BODY VERIFICATION TEST  under VERIFICATION TESTS.
  4. Turn ignition off. Disconnect Compass/Mini-Trip Computer (CMTC), if equipped. Turn ignition on. If scan tool displays BUS (+) & BUS (-) SHORTED TOGETHER, go to next step. If scan tool does not display BUS (+) & BUS (-) SHORTED TOGETHER, replace CMTC. See OVERHEAD CONSOLE  under REMOVAL & INSTALLATION. Perform BODY VERIFICATION TEST  under VERIFICATION TESTS.
  5. Turn ignition off. Disconnect Remote Keyless Entry (RKE) module (if equipped). Turn ignition on. If scan tool displays BUS (+) & BUS (-) SHORTED TOGETHER, go to next step. If scan tool does not display BUS (+) & BUS (-) SHORTED TOGETHER, replace RKE module. See REMOTE KEYLESS ENTRY MODULE  under REMOVAL & INSTALLATION. Perform BODY VERIFICATION TEST  under VERIFICATION TESTS.
  6. Turn ignition off. Disconnect Sentry Key Immobilizer Module (SKIM). See Figure . Turn ignition on. If scan tool displays BUS (+) & BUS (-) SHORTED TOGETHER, go to next step. If scan tool does not display BUS (+) & BUS (-) SHORTED TOGETHER, replace SKIM. See SENTRY KEY IMMOBILIZER MODULE  under REMOVAL & INSTALLATION. Perform BODY VERIFICATION TEST  under VERIFICATION TESTS.
    WARNING: Disconnect battery and wait 2 minutes before disconnecting air bag control module. If air bag control module is dropped, it must be replaced.
  7. Turn ignition off and wait 2 minutes. Disconnect Air Bag Control Module (ACM). See COMPONENT LOCATIONS  . Turn ignition on. If scan tool displays BUS (+) & BUS (-) SHORTED TOGETHER, go to next step. If scan tool does not display BUS (+) & BUS (-) SHORTED TOGETHER, replace ACM. See AIR BAG CONTROL MODULE  under REMOVAL & INSTALLATION. Perform BODY VERIFICATION TEST  under VERIFICATION TESTS.
  8. Turn ignition off. Disconnect scan tool from DLC. Using DVOM, measure resistance between DLC connector terminals No. 3 (Violet/Brown wire) and No. 11 (White/Black wire). See Figure . If resistance is less than 100 ohms, repair short between Violet/Brown wire and White/Black wire. Perform BODY VERIFICATION TEST  under VERIFICATION TESTS. If resistance is 100 ohms or greater, replace scan tool cable or scan tool as necessary. Perform BODY VERIFICATION TEST  under VERIFICATION TESTS.
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