C1796 – OBD-II DTC

OBD-II DTC C1796 – Air Suspension RR Air Spring/Shock Solenoid Output Circuit Open

DTC C1796 meaning

DTC C1796 refers to an issue with the air suspension system, specifically indicating that there is an open circuit in the rear right air spring or shock solenoid output circuit. This code is part of the On-Board Diagnostics II (OBD-II) system, which monitors various vehicle components to ensure proper functionality. When the system detects that the solenoid output circuit is open, it triggers this diagnostic trouble code (DTC) to alert the technician of a potential problem.

DTC C1796 symptoms

Common symptoms associated with DTC C1796 may include:

• Warning lights on the dashboard, such as the air suspension warning light.
• Uneven ride height or sagging on the rear right side of the vehicle.
• Increased noise from the air suspension system.
• Reduced ride comfort or handling issues.
• Possible error messages displayed on the vehicle’s information screen.

DTC C1796 causes

Several factors can lead to the triggering of DTC C1796, including:

• Faulty air spring or shock solenoid.
• Wiring issues, such as damaged or corroded wires in the solenoid output circuit.
• Connector problems, including loose or corroded connections.
• Faulty air suspension control module.
• Air leaks in the suspension system.

DTC C1796 seriousness

The seriousness of DTC C1796 can vary depending on the symptoms and the vehicle’s usage. While it may not cause immediate safety concerns, it can lead to:

• Decreased ride quality and comfort.
• Potential damage to other suspension components if left unaddressed.
• Increased wear on tires due to uneven ride height.
• Compromised handling and stability of the vehicle.

How to diagnose DTC C1796

To diagnose DTC C1796, follow these steps:

1. Use an OBD-II scanner to confirm the presence of DTC C1796.
2. Inspect the air suspension system for visible damage or leaks.
3. Check the wiring and connectors associated with the rear right air spring/shock solenoid for any signs of wear or corrosion.
4. Test the solenoid for proper operation using a multimeter.
5. Examine the air suspension control module for faults or error codes.

How to fix DTC C1796 step-by-step instructions

To fix DTC C1796, follow these step-by-step instructions:

1. Confirm the DTC using an OBD-II scanner and document any additional codes.
2. Visually inspect the wiring and connectors for damage or corrosion.
3. If damaged, repair or replace the wiring and connectors as necessary.
4. Test the rear right air spring/shock solenoid for functionality and replace it if faulty.
5. Check for air leaks in the suspension system and repair as needed.
6. Clear the DTC using the OBD-II scanner and take the vehicle for a test drive to ensure the issue is resolved.

How to erase DTC C1796

To erase DTC C1796, 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. Access the DTC menu on the scanner and locate DTC C1796.
4. Select the option to clear or erase the trouble code.
5. Disconnect the scanner and start the vehicle to verify that the code does not reappear.

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