B1237 – Window Feedback Out of Range

The ODBII code B1237 indicates that the window feedback signal is out of the expected range, suggesting a potential issue with the window motor, regulator, or related wiring.

Moderate.

Common Causes For: B1236 Window Feedback Loss of Signal

• Faulty window motor
• Defective window regulator
• Damaged wiring or connectors
• Malfunctioning body control module (BCM)
• Misaligned window
• Obstruction in the window track
• Low battery voltage or electrical issues

Common misdiagnosis for B1237 Window Feedback Out of Range

• Faulty window motor
• Defective window regulator
• Wiring issues or shorts
• Malfunctioning body control module (BCM)
• Incorrectly calibrated window position
• Bad switch or control panel
• Software glitches in the vehicle’s computer system

Common Troubleshooting Steps

The OBD-II code B1237 indicates a “Window Feedback Out of Range” issue, which typically relates to the power window system in a vehicle. This code suggests that the window position feedback signal is not within the expected range, which can be caused by various issues. Here are some common troubleshooting steps to diagnose and resolve the problem:

• Check for Additional Codes: Use an OBD-II scanner to check for any other related trouble codes. This can provide more context and help identify if there are multiple issues.
• Inspect Window Switches: Examine the power window switches for any signs of damage or malfunction. Ensure that they are functioning correctly and making proper contact.
• Examine Wiring and Connectors: Inspect the wiring harness and connectors associated with the power window system. Look for frayed wires, corrosion, or loose connections that could affect the feedback signal.
• Test the Window Motor: The window motor may be faulty. Test the motor by applying direct power to it to see if it operates correctly. If it does not, the motor may need to be replaced.
• Check Window Position Sensors: Some vehicles have position sensors that provide feedback to the control module. Ensure these sensors are functioning correctly and are not damaged.
• Inspect the Window Regulator: The window regulator may be malfunctioning or damaged. Check for any physical obstructions or issues that could prevent the window from moving properly.
• Reset the System: Sometimes, resetting the vehicle’s computer can clear temporary faults. Disconnect the battery for a few minutes, then reconnect it and see if the code reappears.
• Recalibrate the Window System: Some vehicles require a recalibration of the window system after repairs. Consult the vehicle’s service manual for specific procedures.
• Check for Software Updates: In some cases, a software update for the vehicle’s control module may be necessary. Check with the manufacturer or a dealership for any available updates.
• Consult a Professional: If the issue persists after performing these steps, it may be best to consult a professional mechanic or technician who has experience with the specific make and model of your vehicle. By following these troubleshooting steps, you should be able to identify and resolve the issue related to the B1237 code.