BMW DTC P1816 – Wheel Minus Switch Error Circuit Low
DTC P1816 meaning on BMW
DTC P1816 on a BMW refers to the Wheel Minus Switch Error Circuit Low. This diagnostic trouble code indicates that there is a low voltage condition detected in the circuit related to the wheel minus switch.
BMW DTC P1816 symptoms
Symptoms of DTC P1816 on a BMW may include:
- Malfunctioning cruise control system
- Difficulty engaging or disengaging cruise control
- Check Engine Light (CEL) illuminated on the dashboard
BMW DTC P1816 causes
The common causes of DTC P1816 on a BMW include:
- Defective wheel minus switch
- Wiring issues in the circuit related to the wheel minus switch
- Faulty cruise control module
BMW DTC P1816 seriousness
While DTC P1816 may not directly affect the drivability of the vehicle, it is important to address this issue promptly. Ignoring this fault could lead to further complications with the cruise control system and potentially affect the overall performance of the vehicle.
How to diagnose DTC P1816 on BMW
To diagnose DTC P1816 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 wheel minus switch and its wiring for any visible damage or corrosion.
- Check the cruise control module for proper functionality.
- Perform a continuity test on the circuit related to the wheel minus switch.
How to fix DTC P1816 on BMW
To fix DTC P1816 on a BMW, you can consider the following:
- Replace the faulty wheel minus switch.
- Repair any damaged wiring in the circuit.
- If the cruise control module is faulty, replace it with a new one.
- Clear the fault codes using a diagnostic scanner after the repairs are completed.
How to erase DTC P1816 on BMW
To erase DTC P1816 on a BMW, you can use a diagnostic scanner to clear the fault codes stored in the vehicle’s computer. Once the repairs have been made to address the underlying issue causing the fault code, clearing the code will reset the system and turn off the Check Engine Light.