AutoCodes – Generic – C1752

C1752 Code - Continuous Electric Current To Height Control Compressor

Quick Answer

If the vehicle height control is attempted on a steeply sloping road, when the vehicle is overloaded, or when the vehicle is jacked up with the engine running, the compressor motor operates continuously to raise vehicle height, and causes electric current to flow to the AIR SUS relay for 100 seconds or longer. Common causes include Faulty Height Control Compressor, Height Control Compressor harness is open or shorted, Height Control Compressor 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: C1752 indicates Continuous Electric Current To Height Control Compressor.
Common causes: Common causes include Faulty Height Control Compressor, Height Control Compressor harness is open or shorted, Height Control Compressor 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.

Save to My Repairs My Repairs

AI answers can be wrong. Verify repairs with testing. Open full chat

Code Popularity 10,961

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Nov 22, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
Add Comment

💬 Need more help? Ask Coddy for instant answers — it's free!

Code C1752 Description

If the vehicle height control is attempted on a steeply sloping road, when the vehicle is overloaded, or when the vehicle is jacked up with the engine running, the compressor motor operates continuously to raise vehicle height, and causes electric current to flow to the AIR SUS relay for 100 seconds or longer. Thus DTC C1751/51 may be output and vehicle height control may be suspended. (This is not electrically abnormal.) In this case, however, the vehicle height operation is resumed approx. 10 min. after the ignition switch is turned ON after the ECU detects the first error. If ECU detects another error, it takes 70 minutes until control is resumed.

OBDII Code C1752 - Continuous Electric Current To Height Control Compressor - AutoCodes.com — C1752 Code - Continuous Electric Current To Height Control Compressor

What does this mean?

What are the Possible Causes of the DTC C1752?

Faulty Height Control Compressor
Height Control Compressor harness is open or shorted
Height Control Compressor circuit poor electrical connection

How to Fix the DTC C1752?

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 C1752 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.

Need more information about the C1752 code?

Need more information on how to fix the C1752 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the C1752 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

C1752 Lexus — Continuous Electric Current To Height Control Compressor
C1752 Toyota — Continuous Electric Current To Height Control Compressor

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 C1752 Code

1. What are the common symptoms of OBDII code C1752 (Continuous Electric Current To Height Control Compressor)?

- Common symptoms include issues with the vehicle's suspension system, uneven ride height, and illuminated dashboard warning lights related to the suspension.

2. What are the possible causes of OBDII code C1752?

- The code C1752 can be triggered by a faulty height control compressor, damaged wiring or connectors in the height control system, or a malfunctioning height sensor.

3. How can I diagnose the OBDII code C1752?

- To diagnose code C1752, it is recommended to perform a visual inspection of the height control compressor and associated components, check for any loose or damaged wiring, and use a diagnostic scanner to retrieve specific fault codes.

4. What are some repair tips for fixing OBDII code C1752?

- Repair tips may include checking and repairing any damaged wiring or connectors, replacing the height control compressor if faulty, and calibrating the height control system as per manufacturer's instructions.

5. Can I drive my vehicle with OBDII code C1752?

- It is not recommended to drive the vehicle with code C1752 unresolved, as it can affect the suspension performance and overall safety of the vehicle. It's best to address the issue promptly.

6. How much does it typically cost to repair OBDII code C1752?

- The cost of repairing code C1752 can vary depending on the underlying cause of the issue, but it may involve expenses for parts replacement, labor costs, and potential diagnostic fees.

7. Is OBDII code C1752 a serious issue?

- OBDII code C1752 should be addressed promptly to ensure the proper functioning of the vehicle's suspension system. Ignoring the code can lead to potential safety risks and further damage to the components involved.

8. Can I reset OBDII code C1752 without fixing the underlying issue?

- While you can clear the code temporarily using an OBDII scanner, it is crucial to address the root cause of code C1752 to prevent it from reappearing and ensure the proper operation of the height control system.

9. Are there any recalls related to OBDII code C1752?

- It's recommended to check with the vehicle manufacturer or authorized dealerships for any recalls related to code C1752, as some issues may be covered under warranty or recall campaigns.

10. How can I prevent OBDII code C1752 from occurring in the future?

- Regular maintenance of the suspension system, timely inspections of height control components, and addressing any issues promptly can help prevent OBDII code C1752 from occurring in the future.