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Test 12A - Bus Short To Battery

  1. Turn ignition off. Disconnect Powertrain Control Module (PCM). PCM is located at right corner of firewall. Turn ignition on. If scan tool does not display BUS SHORT TO BATTERY, go to TEST 12B. If scan tool displays BUS SHORT TO BATTERY, go to next step.
  2. Turn ignition off. Disconnect compass/mini-trip computer module. Turn ignition on. If scan tool does not display BUS SHORT TO BATTERY, go to TEST 12C. If scan tool displays BUS SHORT TO BATTERY, go to next step.
  3. Turn ignition off. Disconnect Automatic Temperature Control (ATC) head connector. Turn ignition on. If scan tool does not display BUS SHORT TO BATTERY, replace ATC head. If scan tool displays BUS SHORT TO BATTERY, go to next step.
  4. Turn ignition off. Disconnect instrument cluster. Turn ignition on. If scan tool does not display BUS SHORT TO BATTERY, replace instrument cluster circuit board. If scan tool displays BUS SHORT TO BATTERY, go to next step.
  5. Turn ignition off. Disconnect Vehicle Information Center (VIC). Turn ignition on. If scan tool does not display BUS SHORT TO BATTERY, replace VIC. If scan tool displays BUS SHORT TO BATTERY, go to next step.
  6. Turn ignition off. Disconnect CCD radio. Turn ignition on. If scan tool does not display BUS SHORT TO BATTERY, replace radio. If scan tool displays BUS SHORT TO BATTERY, go to next step.
  7. Turn ignition off. Disconnect memory seat module. Turn ignition on. If scan tool does not display BUS SHORT TO BATTERY, replace memory seat module. If scan tool displays BUS SHORT TO BATTERY, go to next step.
  8. Turn ignition off. Disconnect driver door module. Turn ignition on. If scan tool does not display BUS SHORT TO BATTERY, go to TEST 12D. If scan tool displays BUS SHORT TO BATTERY, go to next step.
  9. Turn ignition off. Disconnect passenger seat module. Turn ignition on. If scan tool does not display BUS SHORT TO BATTERY, go to TEST 12E. If scan tool displays BUS SHORT TO BATTERY, go to next step.
  10. Turn ignition off. Disconnect Body Control Module (BCM) connectors. Turn ignition on. If scan tool does not display BUS SHORT TO BATTERY, go to TEST 12F. If scan tool displays BUS SHORT TO BATTERY, go to next step.
  11. Turn ignition off and wait 5 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 BATTERY, replace ABSCM. If scan tool displays BUS SHORT TO BATTERY, go to next step.
  12. Disconnect scan tool from DLC. Using external voltmeter, measure voltage on DLC, terminal No. 3 (Violet/Brown wire). If voltage is more than 8 volts, repair Violet/Brown wire for short to voltage. If voltage is 8 volts or less, go to next step.
  13. Measure voltage on terminal No. 11 (White/Black wire). If voltage is more than 8 volts, repair White/Dark Green wire for short to voltage. If voltage is less than 8 volts, replace scan tool cable or scan tool as necessary.
NOTE: For connector terminal ID, see CONNECTOR IDENTIFICATION  and WIRING DIAGRAM  . After each repair, perform VERIFICATION TEST VER-1.
CAUTION: Always turn ignition off prior to disconnecting any module connector.
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