OBD Guide

C1743

Rear Height Control Solenoid Valve Right Circuit Malfunction

C1743 is an OBD-II diagnostic trouble code meaning: Rear Height Control Solenoid Valve Right Circuit Malfunction. Common causes: open or short circuit in solenoid circuit, malfunction of the solenoid itself. Estimated repair cost: $56–167.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$56–167 (est.)

Symptoms

  • Uneven level of the rear of the car
  • Dips or rises of the rear suspension
  • Suspension indicator light is on
  • The suspension system goes into emergency mode

Causes

  • Open or short circuit in solenoid circuit
  • Malfunction of the solenoid itself
  • Wiring Harness Problems
  • Poor connection or corroded contacts
  • Malfunction of the suspension control unit

How to Fix

  1. Diagnostics of the solenoid circuit with a multimeter
  2. Checking the integrity and resistance of the solenoid
  3. Inspect the wiring harness for damage
  4. Cleaning or replacing contacts
  5. Replacing a faulty solenoid
  6. Reflashing or replacing the control unit if necessary

Related codes

FAQ

What does the C1743 code mean?

C1743 is an OBD-II diagnostic trouble code that indicates: Rear Height Control Solenoid Valve Right Circuit Malfunction

What causes a C1743 error code?

The most common causes of C1743 include: Open or short circuit in solenoid circuit; Malfunction of the solenoid itself; Wiring Harness Problems; Poor connection or corroded contacts.

How do I fix a C1743 diagnostic trouble code?

To fix C1743: Diagnostics of the solenoid circuit with a multimeter. Checking the integrity and resistance of the solenoid. Inspect the wiring harness for damage. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with C1743?

Limited driving only, diagnose soon

How much does it cost to fix C1743?

The estimated repair cost for C1743 is $56–167. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat