C1847 – OBD-II DTC

OBD-II DTC C1847 – Air Suspension Front Inflator Solenoid Output Circuit Short To Battery

DTC C1847 meaning

DTC C1847 refers to a diagnostic trouble code indicating a short circuit in the air suspension front inflator solenoid output circuit to the battery. This code is specific to vehicles equipped with air suspension systems, where the inflator solenoid is responsible for controlling the air supply to the suspension components. A short to battery suggests that there is an unintended connection between the solenoid circuit and the battery voltage, which can lead to improper operation of the air suspension system.

DTC C1847 symptoms

Common symptoms associated with DTC C1847 may include:

• Warning lights on the dashboard, such as the air suspension warning light.
• Inconsistent or improper ride height of the vehicle.
• Air suspension system failure or inability to adjust height.
• Unusual noises from the air suspension components.

DTC C1847 causes

Several factors can lead to the occurrence of DTC C1847, including:

• Wiring issues, such as damaged or frayed wires in the inflator solenoid circuit.
• Faulty inflator solenoid that may be shorted internally.
• Corrosion or poor connections at the electrical connectors.
• Issues with the air suspension control module.

DTC C1847 seriousness

The seriousness of DTC C1847 can vary based on the symptoms and the vehicle’s usage. However, it is generally considered a moderate to high severity issue because:

• It can lead to a failure of the air suspension system, affecting vehicle handling and safety.
• Continued operation with this code may cause further damage to the air suspension components.
• It may result in an inability to maintain proper ride height, leading to uneven tire wear.

How to diagnose DTC C1847

To diagnose DTC C1847, follow these steps:

1. Use an OBD-II scanner to confirm the presence of the C1847 code.
2. Inspect the wiring and connectors related to the air suspension inflator solenoid for any visible damage or corrosion.
3. Check the resistance of the inflator solenoid to ensure it is within manufacturer specifications.
4. Test the voltage at the inflator solenoid connector while the system is activated to see if it receives the correct voltage.
5. Examine the air suspension control module for any faults or issues.

How to fix DTC C1847 step-by-step instructions

To fix DTC C1847, follow these step-by-step instructions:

1. Clear the DTC using an OBD-II scanner and take the vehicle for a test drive to see if the code returns.
2. If the code reappears, inspect the wiring harness for any signs of damage or shorts.
3. Repair or replace any damaged wiring or connectors found during the inspection.
4. Test the inflator solenoid for proper operation and replace it if it is faulty.
5. Check the air suspension control module for any faults and replace it if necessary.
6. After repairs, clear the DTC again and perform a final test drive to ensure the issue is resolved.

How to erase DTC C1847

To erase DTC C1847, follow these steps:

1. Connect an OBD-II scanner to the vehicle’s diagnostic port.
2. Turn the ignition key to the “ON” position without starting the engine.
3. Access the scanner’s menu and select the option to clear or erase trouble 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 return.

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