AutoCodes – Generic – C1759

C1759 Code - Air Suspension Front Height Sensor High Signal Circuit Short To Ground

Quick Answer

The Anti-Lock Brake System (ABS) Module monitors the Air Suspension Front Height Sensor. Common causes include Faulty Air Suspension Front Height Sensor, Air Suspension Front Height Sensor harness is open or shorted, Air Suspension Front Height Sensor 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
C1759 indicates Air Suspension Front Height Sensor High Signal Circuit Short To Ground.
Common causes
Common causes include Faulty Air Suspension Front Height Sensor, Air Suspension Front Height Sensor harness is open or shorted, Air Suspension Front Height Sensor 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.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 4,032
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Nov 22, 2020
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Code C1759 Description

The Anti-Lock Brake System (ABS) Module monitors the Air Suspension Front Height Sensor. The ABS Module sets the OBDII code when the Air Suspension Front Height Sensor is not to factory specifications.
OBDII Code C1759 - Air Suspension Front Height Sensor High Signal Circuit Short To Ground - AutoCodes.com
C1759 Code - Air Suspension Front Height Sensor High Signal Circuit Short To Ground

What are the Possible Causes of the DTC C1759?

  • Faulty Air Suspension Front Height Sensor
  • Air Suspension Front Height Sensor harness is open or shorted
  • Air Suspension Front Height Sensor circuit poor electrical connection

How to Fix the DTC C1759?

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 C1759 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 C1759 code?

Need more information on how to fix the C1759 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the C1759 code diagnosed by a professional: Find a repair shop in your area

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 C1759 Code

1. What are the common symptoms of OBDII code C1759?

The common symptoms of OBDII code C1759 include issues with the air suspension front height sensor, such as incorrect front ride height and possible illumination of the suspension warning light on the dashboard.

2. What could cause the Air Suspension Front Height Sensor High Signal Circuit Short To Ground fault code (C1759)?

The most common cause of the C1759 code is a short to ground in the circuit connecting the front height sensor to the vehicle's electronic control unit (ECU).

3. How can I diagnose the Air Suspension Front Height Sensor High Signal Circuit Short To Ground issue?

Diagnosing the C1759 code involves using a diagnostic scanner to read the fault codes and performing a visual inspection of the wiring harness and sensor connections for any signs of damage or corrosion.

4. Can driving with the C1759 code cause further damage to the vehicle?

Continuing to drive with the C1759 code may lead to improper suspension operation, affecting the vehicle's ride quality and handling. It is recommended to address the issue promptly to avoid additional damage.

5. What is the typical repair process for fixing the Air Suspension Front Height Sensor High Signal Circuit Short To Ground fault?

The repair process usually involves locating and repairing the short to ground in the circuit, replacing damaged wiring or connectors, and clearing the fault codes using a diagnostic scanner.

6. Are there any DIY tips for troubleshooting the C1759 code?

While basic visual inspections can be done by DIY enthusiasts, diagnosing and repairing the C1759 code may require specialized tools and expertise. It is recommended to consult a professional mechanic for accurate diagnosis and repair.

7. How much does it cost to repair the Air Suspension Front Height Sensor High Signal Circuit Short To Ground issue?

The cost of repairing the C1759 code can vary depending on the extent of the damage and the labor rates in your area. It is advisable to obtain quotes from local auto repair shops for an accurate estimate.

8. Can resetting the fault codes clear the C1759 code temporarily?

Resetting the fault codes may temporarily clear the C1759 code, but if the underlying issue is not addressed, the code is likely to reappear once the system detects the fault again.

9. Is it safe to drive the vehicle with the air suspension front height sensor fault?

Driving with the air suspension front height sensor fault may compromise the vehicle's suspension system, leading to handling issues and potential safety concerns. It is recommended to address the issue promptly.

10. How often does the C1759 code occur in vehicles with air suspension systems?

The C1759 fault code is relatively common in vehicles equipped with air suspension systems, particularly in models with front height sensors. Regular maintenance and inspections can help prevent this issue.

Discuss the causes and fixes for C1759 OBDII Code

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