Intermittent Simulation

To reproduce conditions creating an intermittent fault, use following methods:

• Lightly vibrate component.
• Heat component.
• Wiggle or bend wiring harness.
• Spray component with water.
• Remove/apply vacuum source.

Monitor circuit/component voltage or resistance while simulating intermittent. Use test results to identify a faulty component or circuit.

On California vehicles, intermittent simulation may cause CHECK ENGINE light to flash if an intermittent condition is reproduced on following circuits.

• Code 12 - Airflow Meter Circuit
• Code 13 - Coolant (Engine) Temperature Sensor Circuit
• Code 14 - Vehicle Speed Sensor Circuit
• Code 33 - Exhaust Gas Sensor Circuit
• Code 35 - Exhaust Gas Temperature Sensor Circuit
• Code 43 - Throttle Position Sensor Circuit
• Code 51 - Injector Circuit