Harness Or Connector Intermittents

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Many intermittent open or shorted circuits come and go with harness/connector movement caused by vibration, engine torque, bumps/rough pavement, etc. Check for this type of condition by performing the applicable procedure from the following list:

Move related connectors and wiring while monitoring the appropriate scan tool data.
Move related connectors and wiring with the component commanded ON and OFF, with the scan tool. Observe the component operation.
With the engine running, move related connectors and wiring while monitoring engine operation.

If harness or connector movement affects the data displayed, component/system operation, or engine operation, check and repair the harness/connections as necessary. See ELECTRICAL CONNECTIONS OR WIRING .