OBD-II code · Powertrain (generic)

P083A Transmission Fluid Pressure Sensor/Switch G Circuit

General electrical fault on the seventh transmission fluid pressure sensor/switch G circuit. Heavy-duty and 8/9/10-speed transmissions can have multiple pressure sensors monitoring different hydraulic circuits — sensor G is the seventh in line.

Is it safe to drive with P083A?

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

Common causes

  • Most likelyOpen or shorted wiring

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
0.6–3 h
Emissions test
Usually unaffected
Parts involved
Transmission Pressure Sensor G, Sensor Wiring

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