BMW DTC P2668 – Fuel Mode Indicator Lamp Control Circuit/Open
DTC P2668 meaning on BMW
DTC P2668 on a BMW refers to the Fuel Mode Indicator Lamp Control Circuit/Open. This diagnostic trouble code indicates that there is an open circuit in the control circuit for the fuel mode indicator lamp. The fuel mode indicator lamp is responsible for informing the driver about the current fuel mode of the vehicle, such as Eco, Sport, or Comfort mode.
BMW DTC P2668 symptoms
Symptoms of DTC P2668 on a BMW may include:
- Check Engine Light (MIL) illuminated
- Fuel mode indicator lamp not functioning
- Loss of communication with the fuel mode indicator
BMW DTC P2668 causes
The common causes of DTC P2668 on a BMW include:
- Open circuit in the fuel mode indicator lamp control circuit
- Faulty fuel mode indicator lamp
- Wiring or connector issues in the control circuit
BMW DTC P2668 seriousness
While DTC P2668 may not directly affect the drivability of the vehicle, it is still important to address this issue as it can impact the driver’s ability to monitor the fuel mode of the vehicle accurately. Ignoring this fault could lead to potential confusion or oversight regarding the vehicle’s operating mode.
How to diagnose DTC P2668 on BMW
To diagnose DTC P2668 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 wiring and connectors related to the fuel mode indicator lamp for any visible damage or corrosion.
- Test the fuel mode indicator lamp for proper functionality.
- Perform a continuity test on the control circuit to check for any open circuits.
How to fix DTC P2668 on BMW
To fix DTC P2668 on a BMW, you can try the following solutions:
- Repair or replace any damaged wiring or connectors in the control circuit.
- Replace the faulty fuel mode indicator lamp if necessary.
- Clear the fault codes using a diagnostic scanner after the repairs have been made.
How to erase DTC P2668 on BMW
To erase DTC P2668 on a BMW, you can use a diagnostic scanner to clear the fault codes stored in the vehicle’s computer. After addressing the underlying issue causing the fault code, you can reset the system by erasing the code and performing a test drive to ensure the problem 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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