Checks | Action | ||||||||||||
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DEFINITION: The problem may or may not turn ON the malfunction indicator lamp (MIL) or store a diagnostic trouble code (DTC). | |||||||||||||
Preliminary Checks | Refer to Symptoms - Engine Controls . | ||||||||||||
Damaged Electrical Connections or Wiring | Carefully reform all the connector terminals in the problem circuit in order to ensure the proper contact tension. If necessary, replace all the connector terminals in the problem circuit in order to ensure the proper contact tension. Refer to Connector Repairs in Wiring Systems. An intermittent may be caused by a poor connection, rubbed through wire insulation, or a broken wire inside the insulation. Thoroughly check any circuitry that is suspected of causing the intermittent complaint. Refer to Testing for Intermittent Conditions and Poor Connections in Wiring Systems. If a repair is necessary, refer to Wiring Repairs or Connector Repairs in Wiring Systems. | ||||||||||||
Road Test | If a visual and physical check does not locate the cause of the problem, drive the vehicle with a DMM connected to a suspected circuit or use a scan tool. When the problem occurs, an abnormal voltage or scan reading indicates the problem may be in that circuit. | ||||||||||||
Intermittent Components | The following components can cause an intermittent:
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