Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
The car's computer is having trouble talking to one of the sensors on the front left wheel. It's like when your computer can't find the mouse.
The vehicle's control module has detected a high voltage signal from the front left wheel speed sensor circuit.
The wheel speed sensor is responsible for monitoring the rotational speed of the wheel and sending this data to the vehicle's control module. A 'circuit high' condition indicates that the voltage level in the circuit is higher than expected, which can interfere with the sensor's ability to accurately report wheel speed.
• ABS warning light on
• Traction control system malfunction
• Inconsistent speedometer readings
• Faulty wheel speed sensor
• Damaged wiring or connectors
• Faulty ABS control module
ABS: Anti-lock Braking System
OBD-II: On-Board Diagnostics, Second Generation
• Verify the code with an OBD-II scanner.
• Inspect the front left wheel speed sensor and its wiring.
• Check for any corrosion or damage in the connectors.
• Replace the faulty wheel speed sensor.
• Repair or replace damaged wiring or connectors.
• Replace the ABS control module if necessary.
• OBD-II scanner
• Multimeter
• Socket set
$150 - $400
Moderate
• Toyota Camry
• Honda Accord
• Ford Fusion
• Regularly inspect wheel sensors and wiring.
• Avoid driving through deep water.
• Perform regular vehicle maintenance.
Sensor Issue
• Do not ignore the ABS warning light.
• Have the vehicle inspected by a professional if unsure.
• Regularly check for updates on recalls or service bulletins.
Check vehicle warranty for coverage on ABS components.
This code has been commonly reported in vehicles with high mileage or those exposed to harsh environmental conditions.
Moderate – While the vehicle can still be driven, it's important to address this issue to ensure proper ABS function.
Driving with a malfunctioning ABS system can lead to reduced braking performance and increased stopping distances.
• Vehicle on a flat surface
• Ignition in the 'on' position
The wheel speed sensor is located near the front left wheel, typically mounted on the wheel hub or suspension assembly.
Q: Can I drive with code C1202?
A: While you can drive with this code, it's recommended to fix it as soon as possible to ensure your ABS system works properly.
Q: How do I reset the ABS light?
A: After repairs, the ABS light can be reset using an OBD-II scanner by clearing the codes.
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.
View on Amazon
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.