Code Definition

C1923 — VAPS Solenoid Actuator Output Circuit Short To Battery

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

About C1923

C1923 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 C1923 is stored, the module has detected a short-circuit (voltage pulled to ground or to supply) in the monitored circuit.

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.

C1923 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 Variable Assist Power Steering (VAPS) system varies steering effort with vehicle speed by controlling hydraulic assist through an electrically operated solenoid actuator. The control module drives current through the VAPS solenoid, giving more assist at low speed and less at higher speed. DTC C1923 is set when the module detects the VAPS solenoid actuator output circuit shorted to battery voltage, meaning unexpected high voltage is present on the output wire. This is typically caused by chafed insulation contacting a power feed, a corroded connector bridging to voltage, or an internal shor...

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