OBD-II code · Powertrain (generic)

P07BC Transmission Park Position Sensor/Switch B Circuit Performance High

Sensor B high-end value drifts above the calibrated non-Park range.

Is it safe to drive with P07BC?

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

Common causes

  • Most likelyAged sensor with high-end 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 B

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