History/Intermittent Diagnostic Trouble Codes

History/intermittent Diagnostic Trouble Codes (DTC) indicate Body Control Module (BCM) previously detected a fault which later disappeared. History/intermittent DTCs can be identified by the number "3" preceding the DTC. For example, 31, 32, 34, and so on. If a history/intermittent DTC is set, fault may be intermittent or the system for which the DTC is set may not be currently operating.

Intermittent DTCs 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.