Description:

This diagnostic code indicates that the resistance in the air throttle actuator circuit is abnormally high, suggesting an open circuit. This could impair the actuator’s ability to regulate air intake accurately, affecting engine performance and efficiency.

Reaction:

The ECU may limit engine power or alter air-fuel mixtures to compensate for the reduced functionality of the air throttle system.

Recommendations:

• Inspect Wiring and Connectors: Check the air throttle actuator wiring and connectors for breaks or disconnections that could contribute to an open circuit.
• Test Circuit Resistance: Use a multimeter to measure resistance in the actuator circuit. High readings indicate an open circuit.
• Repair or Replace Wiring: Address any identified issues by repairing or replacing the wiring or connectors.
• Reset ECU and Test Actuator: After repairs, reset the ECU to ensure it recognizes the corrected circuit state. Test the actuator to confirm it operates as intended.

Note:

Ensuring the integrity of the air throttle actuator circuit is crucial for proper engine management and performance. Regular maintenance and prompt repair of circuit issues are recommended.