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Home >> Oldsmobile >> 1998 >> Cutlass Base >> Repair and Diagnosis >> Body & Frame >> Body, Cab Control Systems >> Body Control Module >> Diagnostic Tests >> DTC B2602: DRL Relay Output Short To Ground/Open >> Diagnostic Aids

Diagnostic Aids

  1. Turn ignition switch to RUN position. Ensure transaxle range switch is not in Park position. Check for short to ground or open in circuits between BFC and underhood wiring harness junction block.
  2. If only history DTC B2602 is set, problem may be intermittent. Try to recreate fault by wiggling wiring and connectors while performing test.


  1. Turn ignition switch to RUN position. Ensure transaxle range switch is not in Park position. Check for short to ground or open in circuits between BFC and underhood wiring harness junction block.
  2. If only history DTC B2602 is set, problem may be intermittent. Try to recreate fault by wiggling wiring and connectors while performing test.
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