AutoCodes – Lexus – C1752 Lexus

C1752 Lexus 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 Lexus 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.

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Code Popularity 4,954

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

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

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code C1752 Lexus 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 Lexus - Continuous Electric Current To Height Control Compressor - AutoCodes.com — C1752 Lexus Code - Continuous Electric Current To Height Control Compressor

What does this mean?

What are the Possible Causes of the DTC C1752 Lexus?

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 Lexus?

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 Lexus 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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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 Lexus Code

What does the OBDII code C1752 mean for my Lexus?

The C1752 code indicates that there is a continuous electric current issue detected in the height control compressor system, which is responsible for adjusting the vehicle's ride height.

What symptoms might I experience if my Lexus has the C1752 code?

Common symptoms include a warning light on the dashboard, an inability to adjust the vehicle's ride height, and a rough ride due to improper suspension settings.

What could cause the C1752 code to trigger in my Lexus?

Possible causes include a faulty height control compressor, damaged wiring or connectors, a malfunctioning height sensor, or issues with the vehicle's air suspension system.

How can I diagnose the issue related to the C1752 code?

To diagnose the issue, check for any related codes using an OBDII scanner, inspect the wiring and connectors for damage, and test the height control compressor and sensors for proper operation.

What repairs might be needed to fix the C1752 code?

Repairs could include replacing the height control compressor, repairing or replacing damaged wiring or connectors, or replacing faulty height sensors.

Is it safe to drive my Lexus with the C1752 code?

While you can technically drive the vehicle, it is not recommended as it may result in poor handling and ride quality. It's best to have the issue diagnosed and repaired as soon as possible.

How much might it cost to repair the C1752 issue in my Lexus?

Repair costs can vary widely depending on the specific issue but may range from $100 for simple wiring repairs to over $1,000 for a complete compressor replacement.

Can I reset the C1752 code myself?

Yes, you can reset the code using an OBDII scanner, but if the underlying issue is not fixed, the code is likely to reappear.

Will clearing the C1752 code fix the problem?

No, clearing the code will not fix the problem. You need to address the root cause to ensure the system functions correctly and the code does not return.