BMW DTC P0681 – Cylinder 11 Glow Plug Circuit/Open
DTC P0681 meaning on BMW
DTC P0681 for BMW indicates a fault in the cylinder 11 glow plug circuit, specifically an open circuit. This means that the Engine Control Module (ECM) has detected a lack of continuity in the circuit that controls the glow plug for cylinder 11.
BMW DTC P0681 symptoms
Symptoms of DTC P0681 on a BMW may include:
- Check Engine Light (CEL) illuminated
- Engine misfires
- Hard starting or extended cranking time
- Reduced engine performance
BMW DTC P0681 causes
The common causes of DTC P0681 on a BMW include:
- Faulty glow plug for cylinder 11
- Wiring or connector issues in the glow plug circuit
- Defective Engine Control Module (ECM)
BMW DTC P0681 seriousness
While DTC P0681 may not cause immediate drivability issues, it is important to address this fault promptly to prevent potential engine damage or performance issues.
How to diagnose DTC P0681 on BMW
To diagnose DTC P0681 on a BMW, you can follow these steps:
- Use a diagnostic scanner to retrieve the fault code and freeze frame data
- Inspect the glow plug for cylinder 11 and its wiring for any visible damage
- Check the continuity of the glow plug circuit using a multimeter
- Inspect the ECM for any signs of damage or water intrusion
How to fix DTC P0681 on BMW
To fix DTC P0681 on a BMW, you can perform the following steps:
- Replace the faulty glow plug for cylinder 11
- Repair any damaged wiring or connectors in the glow plug circuit
- If necessary, replace the Engine Control Module (ECM)
How to erase DTC P0681 on BMW
To erase DTC P0681 on a BMW, you can use a diagnostic scanner to clear the fault code from the ECM’s memory. After fixing the underlying issue, you can reset the code to turn off the Check Engine Light.