Code Definition

C2402 — ABS Control Module Pump Failure

System: Chassis  |  Type: Generic (OBD-II Standard)  |  Make: Hyundai

About C2402

C2402 is a generic (obd-ii standard) chassis diagnostic trouble code recorded for Hyundai vehicles. It belongs to the C-prefix family of codes, which covers chassis, braking, steering, suspension, or stability-control faults.

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.

Because C2402 is a generic OBD-II code, its base definition is shared across manufacturers. The specific diagnostic steps, reference values, and repair procedures can vary by vehicle, and the TaT Diagnostic Assistant includes verified procedures submitted by working technicians.

Code Information

The Electronic Brake Control Module (EBCM) monitors the operation of the ABS hydraulic pump motor by commanding pump activation and evaluating motor current draw and pressure response. DTC C2402 is set when the EBCM detects that the pump motor does not operate as commanded, draws abnormal current, or fails to build hydraulic pressure within the specified time. This indicates a malfunction in the ABS pump motor circuit, the motor relay, or the pump assembly itself. When this code is set, the ABS and ESP warning lamps illuminate and antilock braking, traction control, and stability control funct...

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