BMW DTC P0675 – Cylinder 5 Glow Plug Circuit/Open
DTC P0675 meaning on BMW
DTC P0675 indicates a fault in the glow plug circuit for cylinder 5 in a BMW vehicle. The Engine Control Module (ECM) monitors the resistance of the glow plug circuit, and if it detects an open circuit or high resistance in the circuit for cylinder 5, it triggers this diagnostic trouble code.
BMW DTC P0675 symptoms
Symptoms of DTC P0675 in a BMW may include:
- Hard starting or extended cranking time
- Rough idle or misfiring
- Reduced engine performance
- Check Engine Light (CEL) illuminated on the dashboard
BMW DTC P0675 causes
The common causes of DTC P0675 in a BMW are:
- Defective glow plug in cylinder 5
- Wiring issues such as open circuits or poor connections
- Faulty glow plug relay
- ECM software issues
BMW DTC P0675 seriousness
Ignoring DTC P0675 in a BMW can lead to starting difficulties, rough running, and potential engine damage due to incomplete combustion. It is recommended to address this issue promptly to ensure proper engine operation.
How to diagnose DTC P0675 on BMW
To diagnose DTC P0675 on a BMW, follow these steps:
- Use a diagnostic scanner to retrieve the fault codes from the ECM.
- Inspect the glow plug in cylinder 5 for continuity and proper operation.
- Check the wiring harness for any signs of damage or corrosion.
- Test the glow plug relay for functionality.
- If necessary, perform a resistance test on the glow plug circuit.
How to fix DTC P0675 on BMW
To fix DTC P0675 on a BMW, consider the following steps:
- Replace the faulty glow plug in cylinder 5.
- Repair any damaged wiring or connectors in the glow plug circuit.
- Replace the glow plug relay if it is found to be defective.
- Clear the fault codes from the ECM after completing the repairs.
How to erase DTC P0675 on BMW
To erase DTC P0675 on a BMW, use a diagnostic scanner to clear the fault codes stored in the ECM memory. Ensure that the underlying issue causing the fault code has been addressed and resolved before clearing the code. Once the repairs are completed, you can reset the fault code and verify that the issue has been resolved.
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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