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DTC B1339: Device Power No. 3 Circuit Open: Testing

  1. Perform BCM DIAGNOSTIC SYSTEM CHECK  . Go to next step.
  2. Connect scan tool to DLC. Turn ignition switch to RUN position. In BCM input data list, monitor LOADS BATTERY FD parameter. If both parameters show as active, go to DIAGNOSTIC AIDS  . If both parameters do not show as active, go to next step.
  3. Check for open or poor connection in battery feed circuit that does not display as active. See WIRING DIAGRAMS  . Repair as necessary. After repair, go to step  6 . If circuit(s) is okay, go to next step.
  4. Check for poor terminal contact at BCM harness connector. Repair as necessary. After repair, go to step  6 . If terminal contact is okay, go to next step.
  5. Replace BCM. See BODY CONTROL MODULE (BCM)  under REMOVAL & INSTALLATION. Perform new BCM setup. See NEW BCM SETUP  under PROGRAMMING. After programming BCM, go to next step.
  6. Clear DTCs. Operate vehicle within conditions that will cause DTC to set. Check DTCs. If DTC B1339 resets, go to step  2 . If DTC does not reset, system is okay at this time.
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