Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
This code means that the car's computer has detected a problem with the circuit that controls whether the car can use alternative fuel, like electricity or natural gas. It's like a switch that isn't working right.
The P25BF code is triggered when the powertrain control module (PCM) detects a high voltage condition in the circuit responsible for disabling the alternative fuel system.
The P25BF code indicates that the vehicle's control module has detected an abnormally high voltage in the circuit responsible for controlling the disable function of the alternative fuel system. This could be due to a short circuit, faulty wiring, or a malfunctioning control unit.
• Check Engine Light is on
• Vehicle may not switch to alternative fuel
• Possible decrease in fuel efficiency
• Faulty alternative fuel disable control circuit
• Short circuit in the wiring
• Malfunctioning control module
PCM: Powertrain Control Module
OBD-II: On-Board Diagnostics II
• Use an OBD-II scanner to confirm the code
• Inspect the wiring and connectors for damage
• Test the control module for proper operation
• Repair or replace damaged wiring
• Replace the control module if faulty
• Clear the code and test drive to ensure the issue is resolved
• OBD-II scanner
• Multimeter
• Wiring repair tools
$150 - $500
Moderate
• Chevrolet Volt
• Toyota Prius
• Nissan Leaf
• Regularly inspect wiring for damage
• Ensure connectors are secure
• Perform routine maintenance checks
Sensor Issue
• Consult a professional mechanic if unsure
• Avoid using alternative fuel until fixed
• Regularly check for software updates
Check with your vehicle manufacturer as this may be covered under emissions warranty.
This code has become more common with the increase in hybrid and alternative fuel vehicles.
Moderate – It is advisable to address this issue soon to ensure proper vehicle operation and fuel efficiency.
Driving with this code may not be illegal, but it could affect vehicle performance and emissions.
• Vehicle in 'ready' state
• Alternative fuel system engaged
The alternative fuel disable control circuit is typically located within the vehicle's powertrain control module or near the alternative fuel system components.
Q: Can I drive my car with the P25BF code?
A: While you can drive, it's best to get it checked soon to avoid potential performance issues.
Q: Will this code affect my car's fuel efficiency?
A: Yes, it might prevent the vehicle from using alternative fuel, which could reduce fuel efficiency.
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