FixVault

Test 5A - Bus Short To 5 Volts

NOTE: Perform TEST VER-1A  after each repair.
CAUTION: Always turn ignition off prior to disconnecting any module connector.
  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 5 VOLTS, go to TEST 5B  . If scan tool displays BUS SHORT TO 5 VOLTS, go to next step.
  2. 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.
  3. Turn ignition off and wait 5 minutes. Disconnect Air Bag System Control Module (ABSCM). is located under 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.
  4. 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.
  5. 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.