BMW DTC P0793 – Intermediate Shaft Speed Sensor ‘A’ Circuit No Signal
DTC P0793 meaning on BMW
The Diagnostic Trouble Code (DTC) P0793 for BMW refers to the Intermediate Shaft Speed Sensor ‘A’ Circuit No Signal. This code indicates that the vehicle’s onboard computer has detected a lack of signal from the intermediate shaft speed sensor, which is responsible for monitoring the speed of the intermediate shaft in the transmission.
BMW DTC P0793 symptoms
Symptoms of DTC P0793 on a BMW may include:
- Check Engine Light illuminated on the dashboard
- Transmission shifting issues
- Harsh or erratic shifting
- Loss of power or acceleration
BMW DTC P0793 causes
Common causes of DTC P0793 on a BMW include:
- Failed intermediate shaft speed sensor
- Wiring or connector issues in the sensor circuit
- Faulty transmission control module
BMW DTC P0793 seriousness
Ignoring DTC P0793 on a BMW can lead to further transmission problems and potential drivability issues. It is important to address this code promptly to prevent damage to the transmission system.
How to diagnose DTC P0793 on BMW
To diagnose DTC P0793 on a BMW, you can follow these steps:
- Use a diagnostic scanner to retrieve the fault codes stored in the vehicle’s computer.
- Inspect the wiring and connectors related to the intermediate shaft speed sensor for any damage or corrosion.
- Test the intermediate shaft speed sensor using a multimeter to check for proper resistance and signal output.
- Check the transmission control module for any faults or errors.
How to fix DTC P0793 on BMW
To fix DTC P0793 on a BMW, you can try the following:
- Replace the intermediate shaft speed sensor if it is found to be faulty.
- Repair or replace any damaged wiring or connectors in the sensor circuit.
- If the transmission control module is faulty, it may need to be replaced or reprogrammed.
How to erase DTC P0793 on BMW
To erase DTC P0793 on a BMW, you can use a diagnostic scanner to clear the fault codes stored in the vehicle’s computer. After addressing the underlying issue that caused the code, you can reset the Check Engine Light and the code should be erased.
Recommended tools & DTC Scanners for BMW
Best Diagnostic App for modern BMWs: BimmerLink
Recommended Bluetooth adapter for Bimmerlink: OBDLink CX
Cable adapter for Bimmerlink: Enet Cable USB Type C
For older BMWs we recommend: Autel AutoLink AL319 (2024 version)
Easy-to-use Multimeter for reliable diagnostics: AstroAI Auto-ranging Multimeter
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