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Bus Short To Ground

  1. Ensure ignition is in RUN position. Backprobe a jumper wire between terminals No. 4 (Black/Light Blue wire) and 5 (Black/Tan wire) on DLC connector. If scan tool does not display BUS SHORT TO GROUND, repair open Black/Tan wire. If scan tool displays BUS SHORT TO GROUND, remove jumper wire and go to next step.
  2. Turn ignition off. Disconnect Powertrain Control Module (PCM). Turn ignition on. If scan tool does not display BUS SHORT TO GROUND, replace PCM. If scan tool displays BUS SHORT TO GROUND, go to next step.
  3. Turn ignition off. Disconnect Transmission Control Module (TCM). Turn ignition on. If scan tool does not display BUS SHORT TO GROUND, replace TCM. If scan tool displays BUS SHORT TO GROUND, go to next step.
  4. Turn ignition off. Disconnect Compass Mini-Trip Module (CMTC). Turn ignition on. If scan tool does not display BUS SHORT TO GROUND, replace CMTC. If scan tool displays BUS SHORT TO GROUND, go to next step.
  5. Turn ignition off. Disconnect Remote Keyless Entry (RKE) module. Turn ignition on. If scan tool does not display BUS SHORT TO GROUND, replace RKE module. If scan tool displays BUS SHORT TO GROUND, go to next step.
  6. Turn ignition off. Disconnect Smart Key Immobilizer Module (SKIM). Turn ignition on. If scan tool does not display BUS SHORT TO GROUND, replace SKIM. If scan tool displays BUS SHORT TO GROUND, go to next step.
  7. Turn ignition off and wait 2 minutes. Disconnect Air Bag System Control Module (ABSCM). ABSCM is located under center console. Turn ignition on. If scan tool does not display BUS SHORT TO GROUND, replace ABSCM. If scan tool displays BUS SHORT TO GROUND, go to next step.
  8. Ensure all previously disconnected modules are still disconnected. Turn ignition off. Disconnect instrument cluster. Turn ignition on. Disconnect scan tool from DLC. Using external ohmmeter, measure resistance between ground and terminal No. 3 (Violet/Brown wire) on DLC connector. If resistance is less than 700 ohms, repair Violet/Brown wire for short to ground. If resistance is 700 ohms or greater, go to next step.
  9. Measure resistance between ground and terminal No. 11 (White/Black wire) on DLC connector. If resistance is less than 700 ohms, repair White/Black wire for short to ground. If resistance is 700 ohms or greater, replace instrument cluster.
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