Pro · Four-system diagnostics
FOXWELL Multi-System Scanner
A handheld scanner aimed at engine, transmission, ABS, and airbag diagnostic work.
Chassis and ABS faults usually need a scanner that can read brake-system data directly.
View on AmazonEasy 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 found a problem with the temperature sensor in the brake booster. It's like when a thermometer isn't working right and can't tell if it's hot or cold.
The vehicle's computer monitors the brake booster temperature sensor to ensure it operates within a specific range. If the sensor reports a temperature that is too low, the computer sets this code.
The P25C6 code is triggered when the Powertrain Control Module (PCM) detects a low voltage signal from the brake booster temperature sensor 'A' circuit. This could indicate a faulty sensor, wiring issues, or other related problems.
• Illuminated check engine light
• Potential decrease in braking efficiency
• Unusual brake pedal feel
• Faulty brake booster temperature sensor
• Wiring issues or poor connections in the sensor circuit
• Faulty PCM
PCM: Powertrain Control Module
OBD-II: On-Board Diagnostics II
• Use an OBD-II scanner to confirm the code.
• Inspect the brake booster temperature sensor and its wiring for damage.
• Test the sensor with a multimeter to check for proper voltage.
• Replace the brake booster temperature sensor if faulty.
• Repair or replace damaged wiring or connectors.
• Reprogram or replace the PCM if necessary.
• OBD-II scanner
• Multimeter
• Wrench set
$150 - $400
Moderate
• Toyota Camry
• Honda Accord
• Ford Fusion
• Regularly inspect brake system components.
• Ensure electrical connections are secure and free from corrosion.
• Use quality replacement parts.
Sensor Issue
• Do not ignore the check engine light.
• Have the vehicle inspected by a professional if unsure.
• Avoid hard braking until the issue is resolved.
Check with your vehicle manufacturer for specific warranty coverage on brake system components.
This code is relatively uncommon but can occur in vehicles with advanced brake systems that include temperature monitoring.
Moderate – It is important to address this issue to ensure proper brake function.
Driving with a malfunctioning brake system can be dangerous. Address this issue promptly to ensure safety.
• Engine running
• Vehicle stationary
The brake booster temperature sensor is typically located near the brake booster assembly in the engine bay.
Q: Can I drive with a P25C6 code?
A: It's not recommended to drive with this code as it may affect braking performance.
Q: How do I reset the P25C6 code?
A: After repairs, use an OBD-II scanner to clear the code. If the issue is resolved, it should not return.
Pro · Four-system diagnostics
A handheld scanner aimed at engine, transmission, ABS, and airbag diagnostic work.
Chassis and ABS faults usually need a scanner that can read brake-system data directly.
View on Amazon
Universal · Torque wrench
Useful when reassembly torque matters for wheel, suspension, and under-hood fasteners.
Useful when wheel, hub, or suspension hardware needs correct reassembly torque.
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Universal · Drive-on ramps
Helpful for safer access underneath the vehicle during exhaust, EVAP, and underbody inspection work.
Helpful for safer access during underbody inspection work.
View on AmazonThese are optional diagnostic tools, not guaranteed fixes. As an Amazon Associate I earn from qualifying purchases.