AutoCodes – Generic – C1743

C1743 Code - Rear Height Control Solenoid Valve Right Circuit Malfunction

Quick Answer

The control valve solenoid assembly consists of each front and rear leveling valve, gate valve and accumulator valve. Common causes include Faulty Rear Height Control Solenoid Valve Right, Rear Height Control Solenoid Valve Right harness is open or shorted, Rear Height Control Solenoid Valve Right circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means
C1743 indicates Rear Height Control Solenoid Valve Right Circuit Malfunction.
Common causes
Common causes include Faulty Rear Height Control Solenoid Valve Right, Rear Height Control Solenoid Valve Right harness is open or shorted, Rear Height Control Solenoid Valve Right circuit poor electrical connection.
Severity
High - diagnose this code as soon as possible.
Can I drive?
Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
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Code Popularity 6,520
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Nov 19, 2020
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Code C1743 Description

The control valve solenoid assembly consists of each front and rear leveling valve, gate valve and accumulator valve. It performs the height control and connects and disconnects the fluid line of the right and left shock absorber by operating the solenoid valve with the control signal from the ECU.
OBDII Code C1743 - Rear Height Control Solenoid Valve Right Circuit Malfunction - AutoCodes.com
C1743 Code - Rear Height Control Solenoid Valve Right Circuit Malfunction

What are the Possible Causes of the DTC C1743?

  • Faulty Rear Height Control Solenoid Valve Right
  • Rear Height Control Solenoid Valve Right harness is open or shorted
  • Rear Height Control Solenoid Valve Right circuit poor electrical connection
  • Faulty Suspension Electronic Control Unit (ECU)

How to Fix the DTC C1743?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the C1743 code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

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Information for Specific Makes

About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about C1743 Code

1. What are the common symptoms of OBDII code C1743?

- Common symptoms include issues with the rear height control system, uneven suspension height, rough ride quality, and warning lights on the dashboard.

2. What can cause the OBDII code C1743 to trigger?

- The code C1743 is typically triggered by a malfunction in the rear height control solenoid valve on the right side of the vehicle. This can be due to wiring issues, a faulty solenoid valve, or problems with the control module.

3. How serious is the Rear Height Control Solenoid Valve Right Circuit Malfunction code?

- While the vehicle may still be drivable with this code, it is important to address it promptly to prevent further damage to the suspension system and ensure optimal ride comfort and handling.

4. How can I diagnose the cause of OBDII code C1743?

- Diagnosing the cause of C1743 usually involves conducting a thorough inspection of the rear height control system, checking the wiring harness for any damage, testing the solenoid valve for proper operation, and using a diagnostic scanner to read and clear the code.

5. Can I repair OBDII code C1743 myself?

- Repairing OBDII code C1743 may require some level of automotive knowledge and the right tools. Depending on the root cause, you may need to replace the rear height control solenoid valve, repair the wiring, or seek assistance from a professional mechanic.

6. How much does it cost to fix OBDII code C1743?

- The cost of fixing OBDII code C1743 can vary depending on the cause of the issue, the parts needed for repair, and whether you choose to do the repair yourself or take your vehicle to a repair shop. It's recommended to get a few quotes from different mechanics to compare prices.

7. Can I drive my vehicle with OBDII code C1743?

- While it may be possible to drive your vehicle with this code present, it is not recommended as it can affect the suspension system's performance and potentially lead to further damage. It's best to address the issue as soon as possible.

8. How long does it take to repair OBDII code C1743?

- The repair time for OBDII code C1743 can vary depending on the extent of the issue and your experience with automotive repairs. It may take anywhere from a couple of hours to a full day to diagnose and fix the problem.

9. Will resetting the OBDII code C1743 make it go away permanently?

- Resetting the code may temporarily clear the warning light, but if the underlying issue is not addressed, the code is likely to come back. It's important to diagnose and fix the root cause of the problem to prevent the code from reappearing.

10. Is it safe to ignore the OBDII code C1743?

- Ignoring OBDII code C1743 can lead to potential safety issues, compromised suspension performance, and increased wear on other components. It's best to address the code promptly to ensure the vehicle's optimal operation and safety.

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