DTC Code C1948 – What does this code mean?

<ul> <li><a href="/problems/engine-warning-light-on"><b>Engine Light ON</b></a>: The engine light or service engine soon warning light illuminates on the dashboard, indicating a potential issue with the seat track position switch circuit.</li> <li><b>Seat Adjustment Malfunction</b>: The seat may not adjust properly or may be stuck in one position, which can be linked to the seat track position switch circuit resistance being out of range.</li> <li><b>Unusual Electrical Behavior</b>: There may be unusual electrical behavior in the seat adjustment system, such as intermittent operation or failure to respond to seat position commands.</li> </ul>

<ul><li>The seat track position switch may be faulty, leading to incorrect resistance readings and triggering the error code.</li><li>An open or shorted harness in the seat track position switch can disrupt the circuit, causing resistance to fall out of the expected range.</li><li>Poor electrical connections within the seat track position switch circuit can result in inconsistent resistance values, leading to the error code.</li></ul>

<ul> <li><b>Initial Inspection</b>: Inspect the seat track position switch and its wiring for any visible damage or disconnections. Ensure all connectors are securely attached.</li> <li><b>Check Resistance</b>: Using a multimeter, measure the resistance of the seat track position switch circuit. Compare the readings with the manufacturer's specifications to confirm if they are out of range.</li> <li><b>Inspect Wiring Harness</b>: Examine the wiring harness for any signs of wear, corrosion, or damage that could affect the circuit's resistance. Repair or replace any damaged sections.</li> <li><b>Test Seat Track Position Switch</b>: Test the functionality of the seat track position switch by manually operating it and observing the response. Replace the switch if it fails to operate correctly.</li> <li><b>Check Control Module</b>: Inspect the control module for any faults or errors that may affect the seat track position switch circuit. Reprogram or replace the module if necessary.</li> <li><b>Final Verification</b>: After repairs, clear the DTC code and perform a test drive to ensure the issue is resolved and the code does not reappear.</li></ul>

<p>The DTC code C1948 indicates an issue with the <b>Seat Track Position Switch Circuit</b> where the resistance is out of range. This is a <b>moderate</b> issue as it affects the seat's ability to adjust properly, potentially compromising driver comfort and safety. If not addressed, it may lead to <b>increased risk</b> of discomfort or improper seating position, which can be hazardous during driving.</p>