P2668
Fuel Mode Indicator Lamp Control Circuit
P2668 is an OBD-II diagnostic trouble code meaning: Fuel Mode Indicator Lamp Control Circuit. Common causes: open or short circuit in the lamp circuit, malfunction of the indicator lamp itself. Estimated repair cost: $3–17.
Symptoms
- Check Engine Light Is On
- Fuel mode indicator lamp does not work
- The fuel mode indicator lamp is constantly on
- It is impossible to determine the current operating mode of the fuel system
Causes
- Open or short circuit in the lamp circuit
- Malfunction of the indicator lamp itself
- Relay or fuse problems
- Engine control unit (ECU) malfunction
- Poor contact in circuit connectors
How to Fix
- Check fuses and relays associated with the indicator circuit
- Check the integrity of wiring and connectors
- Check the functionality of the indicator lamp
- Scan the ECU for additional errors
- If necessary, replace the lamp or repair the wiring
Related codes
Error P2668 by Vehicle Brand
FAQ
What does the P2668 code mean?
P2668 is an OBD-II diagnostic trouble code that indicates: Fuel Mode Indicator Lamp Control Circuit
What causes a P2668 error code?
The most common causes of P2668 include: Open or short circuit in the lamp circuit; Malfunction of the indicator lamp itself; Relay or fuse problems; Engine control unit (ECU) malfunction.
How do I fix a P2668 diagnostic trouble code?
To fix P2668: Check fuses and relays associated with the indicator circuit. Check the integrity of wiring and connectors. Check the functionality of the indicator lamp. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P2668?
Yes, but get it checked soon
How much does it cost to fix P2668?
The estimated repair cost for P2668 is $3–17. Actual cost depends on your vehicle, location, and labor rates.
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