P25C1
Alternative Fuel Disable Signal Circuit
P25C1 is an OBD-II diagnostic trouble code meaning: Alternative Fuel Disable Signal Circuit. Common causes: open or short circuit in signal circuit, alternate fuel sensor malfunction. Estimated repair cost: $17–56.
Symptoms
- Engine transition to emergency mode
- Increased fuel consumption
- Reduced engine power
- Check Engine light comes on
- Problems with switching between fuel types
Causes
- Open or short circuit in signal circuit
- Alternate fuel sensor malfunction
- Problems with the engine control unit
- Wiring harness damage
- Faulty relay or fuse
How to Fix
- Check the integrity of wiring and connectors
- Check alternative fuel sensor
- Diagnose the engine control unit
- Check relays and fuses
- If necessary, replace faulty components
Related codes
Error P25C1 by Vehicle Brand
FAQ
What does the P25C1 code mean?
P25C1 is an OBD-II diagnostic trouble code that indicates: Alternative Fuel Disable Signal Circuit
What causes a P25C1 error code?
The most common causes of P25C1 include: Open or short circuit in signal circuit; Alternate fuel sensor malfunction; Problems with the engine control unit; Wiring harness damage.
How do I fix a P25C1 diagnostic trouble code?
To fix P25C1: Check the integrity of wiring and connectors. Check alternative fuel sensor. Diagnose the engine control unit. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P25C1?
Yes, but get it checked soon
How much does it cost to fix P25C1?
The estimated repair cost for P25C1 is $17–56. Actual cost depends on your vehicle, location, and labor rates.
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