B2237 – OBD-II DTC

OBD-II DTC B2237 – Vehicle Signal indicating Park While VSS Present

DTC B2237 meaning

DTC B2237 refers to a diagnostic trouble code that indicates a problem with the vehicle’s signal indicating that the transmission is in the Park position while the Vehicle Speed Sensor (VSS) is still providing a speed signal. This discrepancy can lead to issues with the vehicle’s transmission control module (TCM) and overall vehicle performance.

DTC B2237 symptoms

Common symptoms associated with DTC B2237 may include:

• Transmission not shifting properly
• Inability to shift into or out of Park
• Check Engine Light illuminated
• Erratic or unexpected vehicle behavior

DTC B2237 causes

Several factors can contribute to the occurrence of DTC B2237, including:

• Faulty Vehicle Speed Sensor (VSS)
• Wiring issues or poor connections in the transmission system
• Malfunctioning transmission range sensor
• Software issues within the vehicle’s control modules

DTC B2237 seriousness

DTC B2237 can be considered serious as it may affect the vehicle’s ability to shift gears properly. This can lead to unsafe driving conditions, increased wear on the transmission, and potential damage if not addressed promptly. It is advisable to diagnose and repair the issue as soon as possible.

How to diagnose DTC B2237

To diagnose DTC B2237, follow these steps:

1. Use an OBD-II scanner to confirm the presence of DTC B2237.
2. Inspect the Vehicle Speed Sensor (VSS) for any visible damage or disconnection.
3. Check the wiring and connectors related to the VSS and transmission range sensor.
4. Test the VSS output using a multimeter to ensure it is functioning correctly.
5. Examine the transmission range sensor for proper operation.
6. Review the vehicle’s service history for any related repairs or issues.

How to fix DTC B2237 step-by-step instructions

To fix DTC B2237, follow these steps:

1. Confirm the DTC using an OBD-II scanner.
2. Inspect and repair any damaged wiring or connectors related to the VSS and transmission range sensor.
3. If the VSS is faulty, replace it with a new one.
4. Test the new VSS to ensure it is providing the correct output.
5. Check and, if necessary, replace the transmission range sensor.
6. Clear the DTC using the OBD-II scanner and take the vehicle for a test drive to ensure the issue is resolved.

How to erase DTC B2237

To erase DTC B2237, 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 DTC menu on the scanner and locate DTC B2237.
4. Select the option to clear or erase the trouble codes.
5. Turn off the ignition and disconnect the scanner.
6. Start the vehicle and monitor for any reoccurrence of the DTC.

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