Mazda DTC P1771 – Throttle Position Sensor Circuit Open to Transmission Control Module
DTC P1771 meaning on Mazda
DTC P1771 indicates a fault in the throttle position sensor circuit that communicates with the transmission control module in Mazda vehicles.
Mazda DTC P1771 symptoms
- Check Engine Light (CEL) illuminated on the dashboard
- Transmission shifting issues
- Reduced engine performance
Mazda DTC P1771 causes
- Open circuit in the throttle position sensor wiring
- Defective throttle position sensor
- Faulty transmission control module
Mazda DTC P1771 seriousness
The seriousness of DTC P1771 lies in its potential to cause transmission-related problems and affect the overall drivability of the vehicle. Ignoring this issue can lead to further damage.
How to diagnose DTC P1771 on Mazda
- Use an OBD-II scanner to retrieve the trouble codes
- Inspect the throttle position sensor wiring for any visible damage
- Test the throttle position sensor using a multimeter
- Check the connection between the throttle position sensor and the transmission control module
How to fix DTC P1771 on Mazda
- Repair or replace any damaged wiring in the throttle position sensor circuit
- Replace the throttle position sensor if found faulty
- If the issue persists, consider replacing the transmission control module
How to erase DTC P1771 on Mazda
- After fixing the underlying issue, use an OBD-II scanner to clear the trouble codes
- Drive the vehicle to allow the system to relearn the throttle position sensor values
Recommended tools for Mazda diagnostics
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