OBD Guide
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C1923

VAPS Solenoid Actuator Output Circuit Short To Battery

C1923 is an OBD-II diagnostic trouble code meaning: VAPS Solenoid Actuator Output Circuit Short To Battery. Common causes: short circuit of the solenoid control wire to the power wire (+12v), damage to the wiring insulation in the steering harness. Estimated repair cost: $44–222.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$44–222 (est.)

Symptoms

  • The steering fault indicator on the instrument panel is on
  • Steering force does not change at different speeds
  • The steering wheel is too light at high speeds or too heavy at low speeds
  • VAPS system locked in emergency mode
  • Possible noise from the power steering pump

Causes

  • Short circuit of the solenoid control wire to the power wire (+12V)
  • Damage to the wiring insulation in the steering harness
  • VAPS solenoid actuator internal failure
  • Oxidation or damage to the solenoid connector
  • Malfunction of the VAPS control unit

How to Fix

  1. Read codes using a scanner, record all related errors
  2. Disconnect the VAPS solenoid connector and measure the voltage on the signal wire - there should not be 12V when the solenoid is disconnected
  3. Check the integrity and insulation of the wiring from the ECU to the solenoid
  4. Inspect the solenoid connector for oxidation and damage.
  5. Measure the resistance of the solenoid coil (the norm is usually 5–15 ohms)
  6. If the wiring is in good condition, replace the VAPS solenoid; if there is a short circuit in the harness, restore the wiring

Related codes

C1920C1921C1924C1925

FAQ

What does the C1923 code mean?

C1923 is an OBD-II diagnostic trouble code that indicates: VAPS Solenoid Actuator Output Circuit Short To Battery

What causes a C1923 error code?

The most common causes of C1923 include: Short circuit of the solenoid control wire to the power wire (+12V); Damage to the wiring insulation in the steering harness; VAPS solenoid actuator internal failure; Oxidation or damage to the solenoid connector.

How do I fix a C1923 diagnostic trouble code?

To fix C1923: Read codes using a scanner, record all related errors. Disconnect the VAPS solenoid connector and measure the voltage on the signal wire - there should not be 12V when the solenoid is disconnected. Check the integrity and insulation of the wiring from the ECU to the solenoid. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with C1923?

Limited driving only, diagnose soon

How much does it cost to fix C1923?

The estimated repair cost for C1923 is $44–222. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat