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Test 13B - Bus Short To 5 Volts

  1. Turn ignition off. Using external ohmmeter, measure resistance between terminal C30 (Violet/Brown wire) on Powertrain Control Module (PCM) Gray connector and terminal A17 (White/Black wire) on PCM Black connector. PCM is located at right corner of firewall. If resistance is less than 5 ohms, repair short between Violet/Brown wire and White/Black wire. If resistance is 5 ohms or greater, go to next step.
  2. Measure resistance between terminal C28 (White/Black wire) on PCM Gray connector and terminal A17 (White/Black wire) on PCM Black connector. If resistance is less than 5 ohms, repair short between White/Black wires of both connectors. See wiring diagram for clarification. If resistance is 5 ohms or greater, replace PCM.
NOTE: For connector terminal ID, see CONNECTOR IDENTIFICATION  and WIRING DIAGRAM. Perform VERIFICATION TEST VER-1 after each repair.
CAUTION: Always turn ignition off prior to disconnecting any module connector.
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