Engine-CodesGeneric – P07BB

P07BB Code - Transmission Park Position Sensor/Switch 'B' Circuit Performance/Low

Quick Answer

The diagnostic trouble code P07BB refers to an issue with the Transmission Park Position Sensor/Switch 'B' Circuit Performance/Low. Common causes include Faulty transmission park position sensor/switch, Damaged wiring or connectors in the circuit, Malfunctioning transmission control module. 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
P07BB indicates Transmission Park Position Sensor/Switch 'B' Circuit Performance/Low.
Common causes
Common causes include Faulty transmission park position sensor/switch, Damaged wiring or connectors in the circuit, Malfunctioning transmission control module.
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 11, 2024
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Code P07BB Description

The diagnostic trouble code P07BB refers to an issue with the Transmission Park Position Sensor/Switch 'B' Circuit Performance/Low. This code indicates that there is a problem with the transmission park position sensor or switch, specifically in circuit 'B'. The park position sensor/switch is responsible for detecting the position of the transmission gear selector and ensuring that the vehicle is in the correct gear, particularly when it is in the park position. When this sensor or switch malfunctions, it can lead to issues with starting the vehicle, shifting gears, and overall transmission performance.

OBDII Code P07BB - Transmission Park Position Sensor/Switch 'B' Circuit Performance/Low
P07BB Code - Transmission Park Position Sensor/Switch 'B' Circuit Performance/Low

Common Causes of P07BB

  1. Faulty transmission park position sensor/switch
  2. Damaged wiring or connectors in the circuit
  3. Malfunctioning transmission control module
  4. Corrosion or debris affecting sensor/switch operation
  5. Fluid leaks affecting sensor/switch performance

Symptoms of P07BB

  1. Difficulty starting the vehicle
  2. Rough or jerky gear shifts
  3. Vehicle getting stuck in park
  4. Transmission slipping
  5. Dashboard warning lights related to transmission issues

How to Fix P07BB

  1. Begin by diagnosing the specific cause of the code using a diagnostic scanner to identify the faulty component.
  2. Inspect the transmission park position sensor/switch, wiring, and connectors for any visible damage or corrosion.
  3. Test the sensor/switch using a multimeter to determine if it is functioning correctly.
  4. Replace the faulty park position sensor/switch if necessary, ensuring proper installation and calibration.
  5. Clear the diagnostic trouble codes from the vehicle's computer and test drive to verify that the issue has been resolved.

Cost to Fix P07BB

The cost of repairing the Transmission Park Position Sensor/Switch 'B' Circuit Performance/Low issue can vary depending on the specific cause of the problem and the vehicle's make and model. On average, the cost of replacing the park position sensor/switch and addressing any related wiring issues can range from $200 to $500. Labor costs can also add to the total repair bill, with hourly rates typically ranging from $80 to $150. It is recommended to consult with a professional mechanic or auto repair shop for a more accurate cost estimate based on the specific circumstances of your vehicle.

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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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