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Home >> Oldsmobile >> 1998 >> Intrigue Base >> Repair and Diagnosis >> Body & Frame >> Body, Cab Control Systems >> Body Control Module >> Diagnostic Tests >> DTC B1802: Courtesy Lights Circuit (Shorted To Ground) >> Diagnostic Procedures

Diagnostic Procedures

  1. If BCM diagnostic system check was performed, go to next step. If BCM diagnostic system check was not performed, see procedures in BCM DIAGNOSTIC SYSTEM CHECK  .
  2. Turn ignition off. Disconnect BCM harness connector C3. Using a test light connected to battery voltage, backprobe BCM harness connector terminal "F" (Orange wire). See WIRING DIAGRAMS  . If test light illuminates, go to next step. If test light does not illuminate, go to step 4).
  3. Repair short to ground in circuit No. 1732 (Orange wire). After repairs, go to 5).
  4. Replace BCM. Perform new BCM setup. See BCM PROGRAMMING  . After programming BCM, go to next step.
  5. Reinstall components and connectors. Turn ignition on. Clear DTCs using scan tool. After clearing DTCs, perform BCM diagnostic system check. See BCM DIAGNOSTIC SYSTEM CHECK  .
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