Audi DTC P1679 – Drive by Wire-MIL Circuit Open
DTC P1679 meaning on Audi
DTC P1679 for Audi indicates a fault in the Drive by Wire-MIL (Malfunction Indicator Lamp) Circuit, specifically an open circuit. This fault is related to the electronic throttle control system, which regulates the throttle opening based on driver input and various sensor inputs.
Audi DTC P1679 symptoms
Symptoms of DTC P1679 on an Audi may include:
- Check Engine Light (MIL) illuminated on the dashboard
- Reduced engine power or acceleration response
- Throttle response may feel sluggish or unresponsive
Audi DTC P1679 causes
Common causes of DTC P1679 on an Audi include:
- Open circuit in the Drive by Wire-MIL circuit
- Faulty wiring or connectors in the throttle control system
- Defective throttle position sensor
- Electronic control module (ECM) issues
Audi DTC P1679 seriousness
DTC P1679 should not be ignored as it can lead to drivability issues and potential safety concerns. Driving with a malfunctioning electronic throttle control system can affect vehicle performance and responsiveness.
How to diagnose DTC P1679 on Audi
To diagnose DTC P1679 on an Audi, a mechanic may perform the following steps:
- Use a diagnostic scanner to retrieve the fault code and related data
- Inspect the wiring and connectors in the Drive by Wire-MIL circuit for any damage or corrosion
- Check the throttle position sensor for proper operation
- Test the electronic control module (ECM) for faults
How to fix DTC P1679 on Audi
To fix DTC P1679 on an Audi, the following steps may be taken:
- Repair any damaged wiring or connectors in the Drive by Wire-MIL circuit
- Replace the throttle position sensor if found to be faulty
- Address any issues with the electronic control module (ECM)
- Clear the fault code and reset the Check Engine Light using a diagnostic scanner
How to erase DTC P1679 on Audi
To erase DTC P1679 on an Audi, follow these steps:
- Use a diagnostic scanner to access the vehicle’s onboard computer system
- Select the option to clear fault codes or reset the Check Engine Light
- Follow the prompts on the scanner to complete the process
- Verify that the fault code has been successfully cleared by rescanning the system
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