P07B6
Transmission Park Position Sensor/Switch A Circuit Performance High
Transmission — range/park position sensing
Generic OBD-II
Medium
What it means
P07B6 means the transmission's "A" park position sensor/switch is sending a signal that reads implausibly high compared with the actual gear selected. This sensor tells the control module when the vehicle is in Park or Neutral, so a fault can cause a wrong gear display, no-crank in Park on some vehicles, and reverse-lamp or shift issues. It's an electrical/range fault in the sensor circuit, not an engine problem.
Medium
Can I keep driving? Usually driveable, but the module may not confirm Park/Neutral — some vehicles won't crank in Park, may show the wrong gear, or shift roughly.
Common symptoms
What you'll notice
- Wrong or blank gear-position indicator
- No-crank in Park on some vehicles (may need Neutral to start)
- Rough or delayed shifting
- Reverse lamps or backup camera not working correctly
- Check-engine light on
Common causes
Most likely first
- Faulty or misadjusted transmission park position sensor/switchLikely
- Damaged, shorted, or corroded wiring in the sensor circuitCommon
- Corrosion or looseness at the sensor connectorCommon
- Sensor signal reading implausibly high versus the actual selected gearLess often
- Failed transmission control module (rare)Less often
How to diagnose & fix
Work through it in order
- Read freeze-frame data and compare the reported gear against the actual shifter position in live data.
- Inspect the sensor wiring and connector for damage, shorts-to-power, or corrosion.
- Verify the park/neutral position sensor's adjustment and alignment on the transmission.
- Test the sensor signal through the range of gear positions; replace the sensor/switch if it reads out of range.
- Clear the code and confirm the gear indicator and start-in-park behavior are correct.
FAQ
Quick answers
Is it safe to drive with P07B6?+
Usually yes, but be aware the car may not crank in Park, may display the wrong gear, or may shift roughly. Get the sensor checked to avoid being stranded.
Can I just clear P07B6?+
It returns until the sensor, its adjustment, or the wiring is corrected. Diagnose the circuit rather than only clearing it.
Related codes
Read & clear P07B6 yourself
Scan your car, confirm the code, and clear it once it's fixed — with OBD DashX on your phone.
✓ Verified name — SAE J2012 / ISO 15031-6Guidance reviewed by OBD DashX