Code Definition

C2104 — Faulty Valve Power Supply Circuit (ABS/ASC Solenoid Valve Relay)

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

About C2104

C2104 is a generic (obd-ii standard) chassis diagnostic trouble code recorded for Mitsubishi vehicles. It belongs to the C-prefix family of codes, which covers chassis, braking, steering, suspension, or stability-control faults.

When C2104 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.

Because C2104 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

This code relates to the power supply feeding the solenoid valves inside the Mitsubishi ABS and Active Stability Control hydraulic unit. The valve relay that switches this supply is built into the ASC-ECU itself, and the module continuously monitors the voltage present at the valve side of that relay. C2104 is set when the ASC-ECU commands the valve relay on and does not see the expected supply voltage at the solenoid valves, or sees voltage present when the relay should be off. Because the module cannot guarantee it can control hydraulic pressure without that supply, it shuts down ABS, ASC an...

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