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Home >> Oldsmobile >> 1998 >> Intrigue Base >> Repair and Diagnosis (Single Page) >> Body & Frame >> Body, Cab Control Systems >> Body Control Module >> Diagnostic Tests >> DTC B2452: Theater Dimming Circuit (Shorted To Ground Or Open) >> 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 C2. Using DVOM, check resistance between ground and BCM harness connector terminal B1 (White wire). See WIRING DIAGRAMS  . If continuity is present, go to next step. If continuity is not present, go to step 4).
  3. Repair short to ground in circuit No. 156 (White wire). After repairs, go to step 7).
  4. Check continuity in circuit No. 156 (White wire). If continuity is present, go to next step. If continuity is not present, go to step 6).
  5. Replace BCM. Perform new BCM setup. See BCM PROGRAMMING  . After programming BCM, go to step 7).
  6. Repair poor connection or open in circuit No. 156 (White wire). After repairs, go to next step.
  7. Turn ignition off. Reinstall all components and connectors. Turn ignition switch to RUN position. Using scan tool, clear DTCs. After clearing DTCs, perform BCM DIAGNOSTIC SYSTEM CHECK  .
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