History/Intermittent Failures

History/intermittent codes indicate BCM previously detected a fault which later disappeared. History/intermittent codes can be identified by the number "3" preceding the code (i.e., 31, 32, 34, etc.). If a history/intermittent code is set, fault may be intermittent or the system for which the code is set may not be currently operating.

Intermittent failures may be caused by problems with electrical circuit. If a visual inspection does not locate problem, vehicle may be driven with a DVOM attached to suspect circuit. Abnormal voltage or resistance readings when problem occurs indicates problem is within that circuit.