BMW DTC P067B – Cylinder 4 Glow Plug Control Circuit High
DTC P067B meaning on BMW
DTC P067B is a diagnostic trouble code that indicates an issue with the glow plug control circuit for cylinder 4 in a BMW vehicle. Glow plugs are used in diesel engines to help with cold starts by heating the combustion chamber. The control circuit high fault means that the voltage in the circuit is higher than expected, potentially causing issues with the glow plug operation.
BMW DTC P067B symptoms
Symptoms of DTC P067B in a BMW may include:
- Hard starting, especially in cold weather
- Rough idling
- Decreased fuel efficiency
- Check Engine Light illuminated
BMW DTC P067B causes
The common causes of DTC P067B in a BMW include:
- Faulty glow plug for cylinder 4
- Wiring issues in the glow plug control circuit
- Defective glow plug control module
- Corrosion or poor connections in the circuit
BMW DTC P067B seriousness
While DTC P067B may not always lead to immediate drivability issues, it can affect the performance and efficiency of the vehicle, especially during cold starts. Ignoring this fault can potentially lead to more severe problems over time and may result in increased fuel consumption.
How to diagnose DTC P067B on BMW
To diagnose DTC P067B on a BMW, you can follow these steps:
- Use a diagnostic scanner to retrieve the fault code
- Inspect the glow plug for cylinder 4 for any visible damage
- Check the wiring and connections in the glow plug control circuit
- Test the glow plug control module for proper operation
How to fix DTC P067B on BMW
To fix DTC P067B on a BMW, you can try the following:
- Replace the faulty glow plug for cylinder 4
- Repair any damaged wiring or connections in the circuit
- Replace the glow plug control module if necessary
- Clear the fault code and test the vehicle for proper operation
How to erase DTC P067B on BMW
To erase DTC P067B on a BMW, you can use a diagnostic scanner to clear the fault code from the vehicle’s memory. Once the repair has been completed and the issue resolved, clearing the code will reset the Check Engine Light and ensure that the fault does not reoccur.
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
Some of the links on this page may be affiliate links, which means we may earn a small commission if you make a purchase. This helps us keep our DTC database up to date and provide valuable content for free. We only recommend products that we have tested and believe to be the best in their class.