C1722 – OBD-II DTC

OBD-II DTC C1722 – Air Suspension Height Sensor Power Circuit Short To Battery

DTC C1722 meaning

DTC C1722 refers to a diagnostic trouble code indicating a short circuit in the air suspension height sensor power circuit to the battery. This code is specific to vehicles equipped with air suspension systems, where the height sensor monitors the vehicle’s ride height and sends this information to the suspension control module. A short to battery suggests that the power circuit is receiving an unintended voltage, which can lead to incorrect readings and affect the air suspension’s performance.

DTC C1722 symptoms

Common symptoms associated with DTC C1722 may include:

• Warning lights on the dashboard, such as the air suspension warning light.
• Inconsistent or incorrect ride height adjustments.
• Unusual noises from the air suspension system.
• Vehicle sagging or lifting unexpectedly.
• Increased ride harshness or instability.

DTC C1722 causes

Several factors can lead to the occurrence of DTC C1722, including:

• Damaged or frayed wiring in the height sensor power circuit.
• Corroded connectors or terminals in the air suspension system.
• Faulty height sensor itself.
• Short circuit due to moisture intrusion or physical damage.
• Issues with the suspension control module.

DTC C1722 seriousness

DTC C1722 is considered a serious issue as it directly affects the vehicle’s air suspension system. If left unaddressed, it can lead to:

• Compromised vehicle handling and stability.
• Increased wear on suspension components.
• Potential safety hazards while driving.
• Further damage to the air suspension system.

How to diagnose DTC C1722

To diagnose DTC C1722, follow these steps:

1. Use an OBD-II scanner to confirm the presence of DTC C1722.
2. Inspect the wiring and connectors related to the height sensor for any visible damage or corrosion.
3. Check the voltage at the height sensor power circuit to ensure it is within specifications.
4. Test the height sensor for proper operation using a multimeter.
5. Examine the suspension control module for any faults or issues.

How to fix DTC C1722 step-by-step instructions

To fix DTC C1722, follow these steps:

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 height sensor power circuit.
3. Replace the height sensor if it is found to be faulty during testing.
4. Clean any corrosion from connectors and ensure a secure connection.
5. Reconnect the battery and clear the DTC using an OBD-II scanner.
6. Test drive the vehicle to ensure the air suspension system operates correctly and the DTC does not return.

How to erase DTC C1722

To erase DTC C1722, 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 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.

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