BMW DTC P1690 – Malfunction Indicator Lamp (MIL) Control Circuit Electrical
DTC P1690 meaning on BMW
The Diagnostic Trouble Code (DTC) P1690 for BMW refers to a malfunction in the Malfunction Indicator Lamp (MIL) control circuit electrical system. This code indicates that there is an issue with the circuit responsible for controlling the MIL, also known as the Check Engine Light.
BMW DTC P1690 symptoms
Symptoms of DTC P1690 on a BMW may include:
- Check Engine Light (MIL) may be illuminated
- Engine performance issues
- Reduced fuel efficiency
- Difficulty starting the vehicle
BMW DTC P1690 causes
The potential causes of DTC P1690 on a BMW can include:
- Faulty wiring or connectors in the MIL control circuit
- Defective MIL control module
- Issues with the power supply to the MIL control circuit
BMW DTC P1690 seriousness
While DTC P1690 may not directly affect the drivability of the vehicle, it is important to address this issue promptly. Ignoring the MIL control circuit malfunction can lead to overlooking other potential problems that the Check Engine Light is designed to alert you to.
How to diagnose DTC P1690 on BMW
To diagnose DTC P1690 on a BMW, a mechanic would typically perform the following steps:
- Use a diagnostic scanner to retrieve the fault codes
- Inspect the wiring and connectors in the MIL control circuit for any damage or corrosion
- Check the MIL control module for proper operation
- Test the power supply to the MIL control circuit
How to fix DTC P1690 on BMW
To fix DTC P1690 on a BMW, the following steps may be taken:
- Repair or replace any damaged wiring or connectors in the MIL control circuit
- Replace the MIL control module if it is found to be faulty
- Ensure proper power supply to the MIL control circuit
How to erase DTC P1690 on BMW
To erase DTC P1690 on a BMW, you can use a diagnostic scanner to clear the fault codes stored in the vehicle’s computer. Once the issue has been addressed and fixed, clearing the codes will reset the Check Engine Light and turn off the MIL.