P07B8 Code - Transmission Park Position Sensor/Switch 'B' Circuit/Open
Quick Answer
The P07B8 diagnostic trouble code (DTC) refers to an issue with the Transmission Park Position Sensor/Switch 'B' Circuit being open. Common causes include Damaged wiring or connectors, Faulty transmission park position sensor/switch, Corrosion in the electrical connections. 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
- P07B8 indicates Transmission Park Position Sensor/Switch 'B' Circuit/Open.
- Common causes
- Common causes include Damaged wiring or connectors, Faulty transmission park position sensor/switch, Corrosion in the electrical connections.
- 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.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.
Code P07B8 Description
The P07B8 diagnostic trouble code (DTC) refers to an issue with the Transmission Park Position Sensor/Switch 'B' Circuit being open. This sensor is responsible for detecting the position of the transmission gear selector when the vehicle is in park. When the sensor detects an open circuit, it means that there is a lack of continuity in the electrical connection, preventing the sensor from accurately determining the gear position. This can lead to various issues with the vehicle's transmission system, including difficulty shifting gears, the inability to start the vehicle, or even the vehicle rolling away when parked.
Common Causes of P07B8
- Damaged wiring or connectors
- Faulty transmission park position sensor/switch
- Corrosion in the electrical connections
- Issues with the transmission control module
- Water or debris intrusion in the sensor
Symptoms of P07B8
- Difficulty shifting gears
- Inability to start the vehicle
- Vehicle rolling away when parked
- Dashboard warning light illuminated
- Transmission slipping or jerking
How to Fix P07B8
- Begin by diagnosing the specific cause of the open circuit, using a multimeter to test the continuity of the wiring and connections.
- Inspect the transmission park position sensor/switch for any signs of damage or corrosion, replacing it if necessary.
- Check the transmission control module for any faults or errors, resetting or replacing it as needed.
- Clear the DTC from the vehicle's computer using an OBD-II scanner, and test the vehicle to ensure the issue has been resolved.
- Perform a thorough inspection of the transmission system to check for any related issues that may have been caused by the open circuit.
Cost to Fix P07B8
The typical repair costs for addressing a P07B8 code can vary depending on the specific cause of the issue. In general, replacing a transmission park position sensor/switch can cost between $100 and $300, including parts and labor. However, if the problem is related to damaged wiring or the transmission control module, the costs may increase. Additionally, the diagnosis time and labor rates at auto repair shops can vary, so it's recommended to check local rates for a more accurate estimate.
Need more information about the P07B8 code?
Need more information on how to fix the P07B8 code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the P07B8 code diagnosed by a professional: Find a repair shop in your area
Frequently Asked Questions about P07B8 Code
No Frequently Asked Questions about P07B8 Code found.
Discuss the causes and fixes for P07B8 OBDII Code
Code P07B8 comments
No comments found for this page.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.