OBD-II code · Powertrain (generic)

P08BA Pressure Control Solenoid L

A general fault in pressure control solenoid L. Detected via electrical resistance, response to commanded duty cycle, or downstream pressure measurement.

Is it safe to drive with P08BA?

The car may go into limp mode (reduced power). Get it diagnosed before a long trip.

Common causes

  • Most likelyAged solenoid coil resistance drift
  • PossibleWorn valve body bore around the solenoid

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
Hard
DIY friendly
Best left to a mechanic
Typical labour
2–8 h
Emissions test
Usually unaffected
Parts involved
Pressure Control Solenoid L, Valve Body

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