Harness or Connector Intermittents
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Many intermittent open or shorted circuits come and go with harness or connector movement caused by the following type conditions:
- Vibration.
- Engine torque.
- Bumps or rough pavement.
Test for intermittents 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 engine running, move related connectors and wiring while monitoring engine operation.
Verify whether the harness or connector movement affects any of the following systems:
- Data displayed.
- Component or system operation.
- Engine operation.
Repair the components as necessary.