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

Often seen with P07B6

P07B5Transmission Park Position Sensor/Switch A P07B4Transmission Park Position Sensor/Switch A P07B7Transmission Park Position Sensor/Switch A

Read & clear P07B6 yourself

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✓ Verified name — SAE J2012 / ISO 15031-6Guidance reviewed by OBD DashX