OBD-II code · Powertrain (generic)
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.
Is it safe to drive with P07B2?
Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.
Common causes
- Most likelyOpen wire or unplugged sensor
- Less likelyPin pushed back out of connector body
- Less likelyCracked solder joint inside the module or sensor
Symptoms
- Check engine or transmission warning light on
- Harsh, delayed, or missing shifts
- Possible limp mode (locked in one gear)
- Slipping or shuddering during gear changes
Repair at a glance
- Difficulty
- Medium
- DIY friendly
- Best left to a mechanic
- Typical labour
- 0.5–2 h
- Emissions test
- Usually unaffected
- Parts involved
- Park Position Sensor A, Wiring Harness
Related codes
- P07B8Transmission Park Position Sensor/Switch B Circuit/Open
- P07AFTransmission Friction Element G Stuck On
- P07B0Transmission Friction Element H Performance/Stuck Off
- P07B1Transmission Friction Element H Stuck On
- P07B3Transmission Park Position Sensor/Switch A Circuit Low
- P07B4Transmission Park Position Sensor/Switch A Circuit High
- P07B5Transmission Park Position Sensor/Switch A Circuit Performance/Low
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.