C1204 on Jeep
Manufacturer-Specific Chassis/ABS Code (Wheel-Speed Sensor or ABS Valve Circuit)
C1204 on Jeep vehicles indicates manufacturer-specific chassis/abs code (wheel-speed sensor or abs valve circuit). Au7o has documented this code across 1 Jeep model — most commonly on Grand Wagoneer. C1204 is a manufacturer-specific chassis/ABS trouble code, and its exact meaning depends on the maker; reported definitions include a wheel-speed sensor range/performance fault and an ABS dump/inlet valve circuit fault (for example, short to battery). In all cases a chassis/ABS control module has detected an electrical problem in a monitored circuit. Setting this code typically disables ABS and traction/stability control and turns on the related warning lights, while basic braking remains. Confirm the precise definition for your specific make and model with a capable scan tool or factory service data before replacing parts. Typical repair costs on Jeep range from $650 to $2,200, depending on the specific model and root cause.
Common Causes of C1204
- •Faulty wheel speed sensor or damaged tone ring
- •ABS hydraulic valve (dump/inlet) circuit fault
- •Wiring or connector damage / corrosion
- •Short to power or short to ground in the circuit
- •ABS/stability control module (HCU) fault
- •Poor ground or low system voltage
C1204 on Jeep by Model
Jeep Grand Wagoneer(1 issue)
- Transfer Case Encoder Motor Failure / 4WD Mode Stuck2021-2024
The Quadra-Trac transfer case encoder motor on Grand Wagoneer models fails to properly shift between 2WD, 4WD Auto, 4WD Low, and Neutral modes, leaving the vehicle stuck in a single drive mode or displaying a 'Service 4WD System' message. The BorgWarner transfer case encoder motor and position sensor can develop electrical faults or mechanical binding, particularly after exposure to water or road salt. Owners report being unable to disengage 4WD Low or experiencing grinding/clunking when attempting mode changes.
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View C1204 across all makes →Frequently Asked Questions
What does C1204 mean on Jeep?▼
C1204 stands for "Manufacturer-Specific Chassis/ABS Code (Wheel-Speed Sensor or ABS Valve Circuit)." C1204 is a manufacturer-specific chassis/ABS trouble code, and its exact meaning depends on the maker; reported definitions include a wheel-speed sensor range/performance fault and an ABS dump/inlet valve circuit fault (for example, short to battery). In all cases a chassis/ABS control module has detected an electrical problem in a monitored circuit. Setting this code typically disables ABS and traction/stability control and turns on the related warning lights, while basic braking remains. Confirm the precise definition for your specific make and model with a capable scan tool or factory service data before replacing parts. On Jeep specifically, this code is documented across 1 model.
What causes C1204 on Jeep vehicles?▼
Common causes on Jeep: Faulty wheel speed sensor or damaged tone ring, ABS hydraulic valve (dump/inlet) circuit fault, Wiring or connector damage / corrosion, Short to power or short to ground in the circuit, ABS/stability control module (HCU) fault. Specific causes vary by model and year — see the per-model sections below.
How much does it cost to fix C1204 on a Jeep?▼
Repair costs on Jeep range from $650 to $2,200, depending on the specific model and root cause.
Which Jeep models have C1204 documented?▼
Au7o has documented C1204 on 1 Jeep model: Grand Wagoneer.