BMW DTC P1820 – Gear Selector Lever GSL1 Circuit High
DTC P1820 meaning on BMW
The Diagnostic Trouble Code (DTC) P1820 for BMW refers to the Gear Selector Lever (GSL1) Circuit High. This code indicates that there is a high voltage condition detected in the circuit related to the gear selector lever.
BMW DTC P1820 symptoms
Symptoms of DTC P1820 on a BMW may include:
- Difficulty shifting gears
- Transmission not engaging properly
- Check Engine Light illuminated on the dashboard
BMW DTC P1820 causes
Common causes of DTC P1820 on a BMW include:
- Faulty gear selector lever
- Wiring or connector issues in the GSL1 circuit
- Defective transmission control module
BMW DTC P1820 seriousness
The seriousness of DTC P1820 on a BMW depends on the underlying cause. Ignoring this code can lead to transmission issues and potential safety hazards. It is recommended to address this code promptly to prevent further damage.
How to diagnose DTC P1820 on BMW
To diagnose DTC P1820 on a BMW, you can follow these steps:
- Use a diagnostic scanner to retrieve the fault codes
- Inspect the gear selector lever and its wiring for any visible damage
- Check the GSL1 circuit for continuity and proper voltage levels
- Test the transmission control module for functionality
How to fix DTC P1820 on BMW
To fix DTC P1820 on a BMW, you can try the following:
- Replace the faulty gear selector lever if necessary
- Repair any damaged wiring or connectors in the GSL1 circuit
- If the transmission control module is defective, consider replacing it
How to erase DTC P1820 on BMW
To erase DTC P1820 on a BMW, you can:
- Use a diagnostic scanner to clear the fault codes
- After fixing the underlying issue, drive the vehicle to allow the system to recheck and verify that the code does not return