C1735 – OBD-II DTC

OBD-II DTC C1735 – Air Suspension LR Corner Up Timeout

DTC C1735 meaning

DTC C1735 refers to an issue with the air suspension system, specifically indicating a timeout condition for the left rear corner of the vehicle’s air suspension. This code suggests that the system was unable to raise the left rear corner of the vehicle within a specified time frame, which may indicate a malfunction in the air suspension components or related systems.

DTC C1735 symptoms

Common symptoms associated with DTC C1735 may include:

• Uneven ride height, particularly on the left rear side
• Warning lights illuminated on the dashboard
• Increased noise from the air suspension system
• Vehicle may feel unstable or bouncy during driving

DTC C1735 causes

Several factors can lead to the triggering of DTC C1735, including:

• Faulty air suspension compressor
• Leaking air springs or bags
• Blocked or damaged air lines
• Malfunctioning height sensors
• Electrical issues, such as wiring problems or poor connections

DTC C1735 seriousness

DTC C1735 is considered a serious issue as it affects the vehicle’s ride quality and handling. If left unaddressed, it can lead to further damage to the air suspension system and may compromise vehicle safety. It is advisable to diagnose and repair the issue promptly to ensure optimal vehicle performance.

How to diagnose DTC C1735

To diagnose DTC C1735, follow these steps:

1. Use an OBD-II scanner to confirm the presence of the C1735 code.
2. Inspect the air suspension system for visible damage or leaks.
3. Check the air compressor operation and ensure it is functioning correctly.
4. Test the height sensors for proper operation and calibration.
5. Examine the electrical connections and wiring for any signs of wear or damage.
6. Perform a functional test of the air suspension system to see if the left rear corner raises as expected.

How to fix DTC C1735 step-by-step instructions

To fix DTC C1735, follow these step-by-step instructions:

1. Address any identified leaks in the air springs or lines by replacing damaged components.
2. If the air compressor is faulty, replace it with a new unit.
3. Repair or replace any damaged wiring or connectors related to the air suspension system.
4. Calibrate or replace malfunctioning height sensors as necessary.
5. Clear the DTC using an OBD-II scanner and perform a test drive to ensure the issue is resolved.

How to erase DTC C1735

To erase DTC C1735, follow these steps:

1. Connect an OBD-II scanner to the vehicle’s diagnostic port.
2. Turn on the vehicle’s ignition without starting the engine.
3. Navigate to the DTC menu on the scanner and select the option to clear or erase codes.
4. Confirm the action and wait for the scanner to complete the process.
5. Disconnect the scanner and start the vehicle to ensure the code does not reappear.

Recommended tools for OBD-II diagnostics

Explore our expert picks: The Best OBD2 Scanners for 2025

Easy-to-use Multimeter for reliable diagnostics: AstroAI Auto-ranging Multimeter

Some of the links on this page may be affiliate links, which means we may earn a small commission if you make a purchase. This helps us keep our DTC database up to date and provide valuable content for free. We only recommend products that we have tested and believe to be the best in their class.