P1937 Ford Code - Vehicle Speed Signal
Quick Answer
The P1937 Ford diagnostic trouble code (DTC) relates to the vehicle speed signal, indicating a problem with the transmission control module (TCM) receiving an incorrect signal from the vehicle speed sensor. Common causes include Faulty vehicle speed sensor, Damaged wiring or connectors in the speed sensor circuit, Corrosion or debris affecting the speed sensor. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- P1937 Ford indicates Vehicle Speed Signal.
- Common causes
- Common causes include Faulty vehicle speed sensor, Damaged wiring or connectors in the speed sensor circuit, Corrosion or debris affecting the speed sensor.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
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Code P1937 Ford Description
The P1937 Ford diagnostic trouble code (DTC) relates to the vehicle speed signal, indicating a problem with the transmission control module (TCM) receiving an incorrect signal from the vehicle speed sensor. The vehicle speed sensor is responsible for monitoring the speed of the vehicle and providing this information to the TCM for proper transmission operation. When this signal is inaccurate or missing, it can lead to various issues with the vehicle's performance and drivability.
Common Causes of P1937 Ford
- Faulty vehicle speed sensor
- Damaged wiring or connectors in the speed sensor circuit
- Corrosion or debris affecting the speed sensor
- Issues with the TCM or ECM communication
- Mechanical issues in the transmission system
Symptoms of P1937 Ford
- Erratic shifting patterns
- Harsh shifting between gears
- Transmission slipping
- Limp mode activation
- Inaccurate speedometer readings
How to Fix P1937 Ford
- Begin by diagnosing the vehicle speed sensor using a scan tool to confirm the P1937 DTC and check for any related codes.
- Inspect the wiring and connectors in the speed sensor circuit for damage, corrosion, or loose connections.
- Test the vehicle speed sensor's output signal using a multimeter to verify its functionality.
- Replace the vehicle speed sensor if it is found to be faulty, ensuring proper installation and calibration.
- Clear the DTCs from the TCM memory and test drive the vehicle to confirm that the issue has been resolved.
Cost to Fix P1937 Ford
The typical repair costs for addressing a P1937 Ford DTC can range from $150 to $300, including parts and labor. However, it's essential to note that specific diagnosis time and labor rates at auto repair shops can vary based on factors such as location, vehicle make and model, and engine type. Rates in metropolitan areas or at dealerships may be higher, while independent shops often charge less. It's recommended to inquire about local rates for a more accurate estimate.
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