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 is getting a signal that the power going to the wheel speed sensor is too high. It's like when you plug in a lamp and it gets too much electricity.
The code C122F is triggered when the vehicle's computer detects that the voltage in the wheel speed sensor circuit is higher than expected.
The wheel speed sensor is part of the ABS (Anti-lock Braking System) and is responsible for monitoring the speed of each wheel. The code C122F indicates that the supply voltage to the wheel speed sensor is above the normal range, which could be due to electrical issues such as a short circuit or a faulty sensor.
• ABS warning light on
• Traction control light on
• Inconsistent braking performance
• Faulty wheel speed sensor
• Short circuit in the wiring
• Defective ABS module
ABS: Anti-lock Braking System
OBD-II: On-Board Diagnostics, Second Generation
• Check the ABS fuse and replace if necessary.
• Inspect the wiring and connectors for damage or corrosion.
• Test the wheel speed sensor for proper operation.
• Replace the faulty wheel speed sensor.
• Repair or replace damaged wiring.
• Replace the ABS module if needed.
• Multimeter
• OBD-II scanner
• Basic hand tools
$100 - $300
Moderate
• Toyota Camry
• Ford F-150
• Honda Accord
• Regularly inspect ABS components.
• Keep electrical connectors clean and dry.
• Perform routine maintenance checks.
Sensor Issue
• Avoid driving in harsh conditions until repaired.
• Have the vehicle inspected by a professional mechanic.
Check with your vehicle's manufacturer for warranty coverage on ABS components.
This code has been associated with various ABS issues in multiple vehicle models over the years.
Moderate – It is advisable to address this issue soon to ensure proper braking performance.
Driving with a faulty ABS system can reduce braking efficiency and increase the risk of accidents.
• Vehicle parked on a level surface
• Ignition in the 'On' position
The wheel speed sensor is typically located near the wheel hub assembly on each wheel.
Q: Can I drive with a C122F code?
A: It's possible, but not recommended as it may affect braking performance.
Q: How do I reset the ABS light?
A: Fix the underlying issue first, then use an OBD-II scanner to clear the code.
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.
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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.