OBD Guide
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C1912

Ride Control Right Front Shock Actuator Circuit Short To Ground

C1912 is an OBD-II diagnostic trouble code meaning: Ride Control Right Front Shock Actuator Circuit Short To Ground. Common causes: short circuit in the wiring between the suspension ecu and the right front shock absorber actuator, oxidation or damage to the actuator connector. Estimated repair cost: $56–278.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$56–278 (est.)

Symptoms

  • The suspension fault indicator on the instrument panel is on
  • Adaptive suspension locked in fixed mode
  • Deterioration in ride and handling
  • The stiffness of the right front shock absorber does not change under different driving modes
  • Possible knocking or vibration from the right front wheel

Causes

  • Short circuit in the wiring between the suspension ECU and the right front shock absorber actuator
  • Oxidation or damage to the actuator connector
  • Internal failure of the electromagnetic shock absorber actuator
  • Damage to the wiring harness due to corrosion or mechanical stress
  • Malfunction of the adaptive suspension system control unit

How to Fix

  1. Connect the scanner and read all fault codes, record frozen frame data
  2. Visually inspect the wiring and connector of the right front shock absorber actuator for damage, corrosion, or abrasions.
  3. Measure the resistance between the actuator signal wire and the car body (should be more than 1 MOhm)
  4. If a short circuit is detected, restore the integrity of the wiring or replace the harness
  5. Check and, if necessary, clean/replace the actuator connector
  6. If the wiring is OK, replace the shock absorber actuator and re-do the diagnostics.

Related codes

C1913C1911C1914C1915

FAQ

What does the C1912 code mean?

C1912 is an OBD-II diagnostic trouble code that indicates: Ride Control Right Front Shock Actuator Circuit Short To Ground

What causes a C1912 error code?

The most common causes of C1912 include: Short circuit in the wiring between the suspension ECU and the right front shock absorber actuator; Oxidation or damage to the actuator connector; Internal failure of the electromagnetic shock absorber actuator; Damage to the wiring harness due to corrosion or mechanical stress.

How do I fix a C1912 diagnostic trouble code?

To fix C1912: Connect the scanner and read all fault codes, record frozen frame data. Visually inspect the wiring and connector of the right front shock absorber actuator for damage, corrosion, or abrasions.. Measure the resistance between the actuator signal wire and the car body (should be more than 1 MOhm). For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with C1912?

Limited driving only, diagnose soon

How much does it cost to fix C1912?

The estimated repair cost for C1912 is $56–278. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat