OBD-II code · Powertrain (generic)

P07B5 Transmission Park Position Sensor/Switch A Circuit Performance/Low

Sensor A is electrically intact but its low-end value drifts — for example a value below the calibrated Park threshold while the lever is mechanically out of Park. The TCM cannot fully trust the Park reading.

Is it safe to drive with P07B5?

Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.

Common causes

  • Most likelyAged Hall element with offset drift

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

Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.