Code Definition

C1404 — Traction Control Valve Rear Circuit Failure

System: Chassis  |  Type: Manufacturer-Specific  |  Make: Generic

About C1404

C1404 is a manufacturer-specific chassis diagnostic trouble code. It belongs to the C-prefix family of codes, which covers chassis, braking, steering, suspension, or stability-control faults.

When C1404 is stored, the module has detected an electrical-circuit fault in the wiring, connector, or driver associated with the named component.

Scanning & clearing: Chassis (C) codes are stored in the ABS, traction control, or stability-control modules. An enhanced or OEM-level scan tool is usually required to read and clear them.

C1404 is a manufacturer-specific code. The same code string on a different make may have a different meaning. Always confirm the code's definition against the vehicle's service information for the specific make and model under test.

Code Information

The C1404 fault code indicates the ABS or traction control module has detected an electrical fault on the rear traction control valve circuit. On many ABS systems with a rear axle dual control configuration, a single solenoid valve in the ABS hydraulic control unit modulates pressure to one or both rear wheels during traction control and stability control events. The rear traction control valve is used to apply brake force to the driven rear wheels when slip is detected or to support stability control interventions. This code is set when the module detects an open circuit, short, or out of ran...

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