C1792 – OBD-II DTC

OBD-II DTC C1792 – Air Suspension LR Air Spring/Shock Solenoid Output Circuit Short To Battery

DTC C1792 meaning

DTC C1792 refers to a diagnostic trouble code indicating a problem with the left rear (LR) air spring or shock solenoid output circuit in the air suspension system. Specifically, it signifies a short circuit to the battery, which can disrupt the normal operation of the air suspension system, leading to improper vehicle height adjustments and ride quality issues.

DTC C1792 symptoms

Common symptoms associated with DTC C1792 may include:

• Warning lights on the dashboard, such as the air suspension warning light.
• Inconsistent or uneven vehicle height.
• Harsh ride quality or excessive bouncing.
• Inability to adjust the air suspension settings.
• Possible air leaks in the suspension system.

DTC C1792 causes

Several factors can lead to the occurrence of DTC C1792, including:

• Wiring issues, such as frayed or damaged wires in the solenoid output circuit.
• Corrosion or poor connections at the solenoid or related connectors.
• Faulty air spring or shock solenoid itself.
• Short circuits caused by moisture intrusion or physical damage.
• Malfunctioning air suspension control module.

DTC C1792 seriousness

DTC C1792 is considered a serious issue as it directly affects the vehicle’s air suspension system. If left unaddressed, it can lead to:

• Increased wear on suspension components.
• Compromised vehicle handling and stability.
• Potential safety hazards due to improper ride height.
• Further damage to the air suspension system, leading to costly repairs.

How to diagnose DTC C1792

To diagnose DTC C1792, follow these steps:

1. Use an OBD-II scanner to confirm the presence of DTC C1792.
2. Inspect the wiring and connectors associated with the left rear air spring/shock solenoid for damage or corrosion.
3. Check for continuity in the solenoid output circuit.
4. Test the air spring/shock solenoid for proper operation using a multimeter.
5. Examine the air suspension control module for faults or error codes.

How to fix DTC C1792 step-by-step instructions

To fix DTC C1792, follow these step-by-step instructions:

1. Disconnect the vehicle’s battery to ensure safety while working on the electrical system.
2. Inspect and repair any damaged wiring or connectors in the solenoid output circuit.
3. Replace the left rear air spring/shock solenoid if it is found to be faulty.
4. Reconnect all connectors and ensure they are secure and free of corrosion.
5. Reconnect the vehicle’s battery.
6. Clear the DTC using an OBD-II scanner and perform a test drive to verify that the issue is resolved.

How to erase DTC C1792

To erase DTC C1792, follow these steps:

1. Connect an OBD-II scanner to the vehicle’s diagnostic port.
2. Turn on the ignition without starting the engine.
3. Navigate to the “Erase Codes” or “Clear DTCs” option on the scanner.
4. Confirm the action to clear the trouble codes.
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.