P07B2
Transmission Park Position Sensor/Switch A Circuit/Open
Park position sensor/switch A — confirms that the gear selector lever is in Park, used by shift-by-wire systems and key-interlock logic — is open. The TCM cannot confirm Park engagement, blocking key removal and engine restart logic.
Park position sensor/switch A — confirms that the gear selector lever is in Park, used by shift-by-wire systems and key-interlock logic — is open. The TCM cannot confirm Park engagement, blocking key removal and engine restart logic.
Common causes
- high
Open wire or unplugged sensor
One of the most commonly reported causes for this code — check this first.
Typical part cost: $130-660
- low
Pin pushed back out of connector body
Less common, but worth ruling out after the more likely causes.
Typical part cost: $130-660
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First things to check
- 1Confirm the code with a scan tool and check for additional related codes.
- 2Inspect the relevant sensors, wiring, and connectors for damage or corrosion.
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Related codes
See related trouble codes
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Frequently asked questions
What does P07B2 mean?
P07B2 means "Transmission Park Position Sensor/Switch A Circuit/Open". It is a generic OBD-II code that points to a fault in the transmission.
What are the most common causes of P07B2?
open wire or unplugged sensor; pin pushed back out of connector body; cracked solder joint inside the module or sensor — these are the most commonly reported causes. Verify with a proper diagnosis before replacing parts, or use the Wrenchify app for a vehicle-specific diagnosis.
Can I keep driving with this code?
This code points to a problem that can cause damage or affect safety. Avoid driving and have the vehicle diagnosed promptly. Use the Wrenchify app for a full diagnosis specific to your vehicle.
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