Engine-CodesGeneric – P07BA

P07BA Code - Transmission Park Position Sensor/Switch 'B' Circuit High

Quick Answer

The P07BA diagnostic trouble code (DTC) indicates an issue with the Transmission Park Position Sensor/Switch 'B' Circuit being too high. Common causes include Faulty Transmission Park Position Sensor/Switch 'B', Wiring issues or a short circuit in the sensor circuit, Corrosion or damage to sensor connectors. 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
P07BA indicates Transmission Park Position Sensor/Switch 'B' Circuit High.
Common causes
Common causes include Faulty Transmission Park Position Sensor/Switch 'B', Wiring issues or a short circuit in the sensor circuit, Corrosion or damage to sensor connectors.
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.
Table of contents Created and updated by William Orellana on Sep 13, 2024
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Code P07BA Description

The P07BA diagnostic trouble code (DTC) indicates an issue with the Transmission Park Position Sensor/Switch 'B' Circuit being too high. This sensor is responsible for detecting the position of the transmission gear selector in the park position. When the sensor detects that the gear selector is in the park position, it sends a signal to the vehicle's computer system to prevent the engine from starting unless the vehicle is in park or neutral.

OBDII Code P07BA - Transmission Park Position Sensor/Switch 'B' Circuit High
P07BA Code - Transmission Park Position Sensor/Switch 'B' Circuit High

Common Causes of P07BA

  1. Faulty Transmission Park Position Sensor/Switch 'B'
  2. Wiring issues or a short circuit in the sensor circuit
  3. Corrosion or damage to sensor connectors
  4. Issues with the transmission control module
  5. Software glitches in the vehicle's computer system

Symptoms of P07BA

  1. Difficulty starting the vehicle
  2. Inability to shift out of park
  3. Harsh shifting or erratic transmission behavior
  4. Check Engine Light illuminated
  5. Transmission slipping or jerking

How to Fix P07BA

  1. Begin by diagnosing the issue using a scan tool to confirm the P07BA code and pinpoint the exact cause.
  2. Inspect the wiring and connectors associated with the Transmission Park Position Sensor/Switch 'B' for any damage or corrosion. Repair or replace as needed.
  3. Test the sensor itself to ensure it is functioning properly. Replace the sensor if it is found to be faulty.
  4. Clear the DTC from the vehicle's computer system and perform a test drive to confirm that the issue has been resolved.
  5. If the problem persists, further diagnostics may be needed to identify any underlying issues with the transmission control module or other related components.

Cost to Fix P07BA

The typical repair costs for addressing a Transmission Park Position Sensor/Switch 'B' Circuit High issue can range from $150 to $400, depending on the extent of the repairs needed and the cost of parts. This estimate includes the cost of a new sensor, any necessary wiring repairs, and labor costs. Keep in mind that prices can vary based on location, vehicle make and model, and the specific repair shop. It's recommended to obtain quotes from multiple shops to ensure a competitive price.

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

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