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Test 5A - Bus Short To 5 Volts

NOTE: For connector terminal identification see CONNECTOR IDENTIFICATION  . For wiring diagrams, see WIRING DIAGRAMS  . Perform, after each repair, VERIFICATION TEST VER-1A - VERIFICATION PROCEDURE  .
CAUTION: Always turn ignition off prior to disconnecting any module connector.
  1. Turn ignition off. Disconnect Powertrain Control Module (PCM). PCM is mounted to right inner fender. Turn ignition on. If scan tool does not display BUS SHORT TO 5 VOLTS, go to TEST 5B  . If scan tool displays BUS SHORT TO 5 VOLTS, go to next step.
  2. Turn ignition off. Disconnect anti-lock brake controller module. Controller module is mounted to top of ABS hydraulic unit. Turn ignition on. If scan tool does not display BUS SHORT TO 5 VOLTS, replace anti-lock brake controller module. If scan tool displays BUS SHORT TO 5 VOLTS, go to next step.
  3. Turn ignition off. Disconnect instrument cluster. Turn ignition on. If scan tool does not display BUS SHORT TO 5 VOLTS, replace instrument cluster circuit board. If scan tool displays BUS SHORT TO 5 VOLTS, go to next step.
  4. Turn ignition off. Disconnect compass mini-trip computer. Turn ignition on. If scan tool does not display BUS SHORT TO 5 VOLTS, replace compass mini-trip computer. If scan tool displays BUS SHORT TO 5 VOLTS, go to next step.
  5. Turn ignition off and wait 2 minutes. Disconnect Air Bag Control Module (ACM). ACM is located under front of center console. Turn ignition on. If scan tool does not display BUS SHORT TO 5 VOLTS, replace ABSCM. If scan tool displays BUS SHORT TO 5 VOLTS, go to next step.
  6. Turn ignition off. Disconnect Central Timer Module (CTM). CTM is mounted behind right corner of dash, beside glove box. Turn ignition on. If scan tool does not display BUS SHORT TO 5 VOLTS, replace CTM. If scan tool displays BUS SHORT TO 5 VOLTS, go to next step.
  7. Disconnect scan tool from DLC. Using external voltmeter, measure voltage between ground and terminal No. 3 (Violet/Brown wire) on DLC connector. If voltage is more than 4 volts, repair Violet/Brown wire for short to voltage. If voltage is 4 volts or less, go to next step.
  8. Measure voltage between ground and terminal No. 11 (White/Black wire) on DLC connector. If voltage is more than 4 volts, repair White/Black wire for short to voltage. If voltage is less than 4 volts, replace scan tool cable or scan tool as necessary.
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