|
|
INTERMITTENT CONDITION For the Engine circuit diagrams (Refer to 9 - ENGINE - SCHEMATICS AND DIAGRAMS). For a complete wiring diagram Refer to Section 8W. POSSIBLE CAUSES INTERMITTENT CONDITION Diagnostic Test 1. INTERMITTENT CONDITION NOTE: The conditions that set the DTC are not present at this time. The following list may help in identi- WARNING: When the engine is operating, do not stand in direct line with the fan. Do not put your hands Review the scan tool Freeze Frame information. If possible, try to duplicate the conditions under which the DTC set. With the engine running at normal operating temperature, monitor the scan tool parameters related to the DTC while Turn the ignition off. Visually inspect the related wire harness. Disconnect all the related harness connectors. Look for any chafed, Perform a voltage drop test on the related circuits between the suspected faulty component and the PCM. CAUTION: Do not probe the PCM harness connectors. Probing the PCM harness connectors will damage If numerous trouble codes were set, use a wire schematic and look for any common ground or supply circuits. For any Relay DTCs, actuate the Relay with the scan tool and wiggle the related wire harness to try to interrupt the For intermittent Evaporative Emission trouble codes perform a visual and physical inspection of the related parts For intermittent Misfire DTC’s check for restrictions in the Intake and Exhaust system, proper installation of Sensors, Use the scan tool to perform a System Test if one applies to failing component. A co-pilot, data recorder, and/or lab scope should be used to help diagnose intermittent conditions. Were any problems found during the above inspections? Yes >> Perform the necessary repairs. Perform the POWERTRAIN VERIFICATION TEST. (Refer to 9 - ENGINE - STANDARD PROCEDURE) No >> Test Complete. 8Q - 2 VEHICLE THEFT SECURITY - ELECTRICAL DIAGNOSTICS DR/DH |