Audi DTC P1790 – Transmission Range Display Circuit Open
DTC P1790 meaning on Audi
DTC P1790 in an Audi indicates a fault in the Transmission Range Display Circuit, specifically an open circuit. This fault is related to the transmission range sensor, which is responsible for detecting the position of the gear selector and informing the vehicle’s computer about the selected gear.
Audi DTC P1790 symptoms
Symptoms of DTC P1790 in an Audi may include:
- Incorrect gear display on the instrument cluster
- Transmission not shifting correctly
- Vehicle may not start
Audi DTC P1790 causes
The common causes of DTC P1790 in an Audi are:
- Faulty transmission range sensor
- Wiring or connector issues in the transmission range display circuit
- Corrosion or poor connections in the circuit
Audi DTC P1790 seriousness
DTC P1790 should be addressed promptly as it can lead to drivability issues and potential safety concerns. Ignoring this fault may result in transmission problems and affect the overall performance of the vehicle.
How to diagnose DTC P1790 on Audi
To diagnose DTC P1790 on an Audi, you can follow these steps:
- Use a diagnostic scanner to retrieve the fault code
- Inspect the transmission range sensor and its wiring for any visible damage
- Check the connectors for corrosion or poor connections
- Perform a continuity test on the circuit to identify any open circuits
How to fix DTC P1790 on Audi
To fix DTC P1790 on an Audi, you can try the following solutions:
- Replace the faulty transmission range sensor
- Repair or replace any damaged wiring or connectors in the circuit
- Clean any corrosion from the connectors and ensure proper connections
- Clear the fault code and test the vehicle to ensure the issue is resolved
How to erase DTC P1790 on Audi
To erase DTC P1790 on an Audi, you can use a diagnostic scanner to clear the fault code from the vehicle’s computer. After fixing the underlying issue causing the fault code, clearing the code will reset the system and turn off the check engine light.