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Test 4B - Bus Short To Battery

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. Using external ohmmeter, measure resistance between ground and terminal A31 (Black wire) on Powertrain Control Module (PCM) Black connector. PCM is located at right inner fender, at corner of firewall. If resistance is less than 10 ohms, go to next step. If resistance is 10 ohms or greater, repair open Black wire.
  2. Measure resistance between ground and A32 (Black wire) on PCM Black connector. If resistance is less than 5 ohms, replace PCM. If resistance is 5 ohms or greater, repair open Black wire.
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