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Home >> Oldsmobile >> 1999 >> Intrigue GL, 3.5 H >> Repair and Diagnosis >> External Pages >> Different car >> Section 5 (Body Control Modules) >> Diagnostic Tests >> DTC B1374: Ignition 1 Fault >> Diagnostic Aids

Diagnostic Aids

WARNING: This page is about a different car, the 1999 Pontiac Grand Am and 1999 Oldsmobile Alero. However, it is still accessible from the selected car via links, so may be relevant.

BCM will not communicate with scan tool if IGNITION 1 voltage is not present. If DTC is history, problem may be intermittent. Perform test procedure while wiggling wiring and connectors.

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