OBD-II DTC C1947 – Seat Track Position Switch Circuit Short to Ground
DTC C1947 meaning
DTC C1947 refers to a diagnostic trouble code indicating a short to ground in the seat track position switch circuit. This code is part of the On-Board Diagnostics II (OBD-II) system, which monitors various vehicle components to ensure proper functionality. The seat track position switch is responsible for detecting the position of the seat and sending this information to the vehicle’s control module. A short to ground suggests that there is an unintended connection between the circuit and the ground, which can disrupt the normal operation of the seat adjustment system.
DTC C1947 symptoms
Common symptoms associated with DTC C1947 may include:
- Inability to adjust the seat position
- Seat position indicator malfunction
- Warning lights illuminated on the dashboard
- Potential issues with other related systems, such as airbags
DTC C1947 causes
Several factors can lead to the occurrence of DTC C1947, including:
- Damaged or frayed wiring in the seat track position switch circuit
- Corroded connectors or terminals
- Faulty seat track position switch
- Improper installation or adjustment of the seat
- Moisture intrusion in the electrical connections
DTC C1947 seriousness
The seriousness of DTC C1947 can vary depending on the vehicle’s design and the specific symptoms present. While it may not immediately affect the vehicle’s drivability, it can lead to safety concerns, especially if the seat position affects airbag deployment. It is advisable to address this issue promptly to ensure proper seat functionality and safety features are operational.
How to diagnose DTC C1947
To diagnose DTC C1947, follow these steps:
- Use an OBD-II scanner to confirm the presence of the code.
- Inspect the seat track position switch and its wiring for visible damage.
- Check for continuity in the wiring harness and look for shorts to ground.
- Test the seat track position switch with a multimeter to ensure it operates correctly.
- Examine connectors for corrosion or loose connections.
How to fix DTC C1947 step-by-step instructions
To fix DTC C1947, follow these step-by-step instructions:
- Disconnect the vehicle’s battery to ensure safety while working on electrical components.
- Inspect the wiring and connectors associated with the seat track position switch for damage or corrosion.
- If damaged wiring is found, repair or replace the affected sections.
- Test the seat track position switch for proper functionality and replace it if necessary.
- Reconnect all connectors securely and ensure there are no loose connections.
- Reconnect the vehicle’s battery and clear the DTC using an OBD-II scanner.
- Test the seat adjustment functionality to ensure the issue is resolved.
How to erase DTC C1947
To erase DTC C1947, follow these steps:
- Connect an OBD-II scanner to the vehicle’s diagnostic port.
- Turn on the vehicle’s ignition without starting the engine.
- Navigate to the trouble codes section on the scanner.
- Select the option to clear or erase the codes.
- Confirm the action and wait for the scanner to indicate that the codes have been cleared.
- Disconnect the scanner and perform a test drive to ensure the code does not reappear.
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