OBD-II code · Powertrain (generic)

P07D4 Transmission Mode Switch F Circuit

General electrical fault on the sixth transmission mode select switch input F.

Is it safe to drive with P07D4?

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 switch wire

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
Often, with basic tools
Typical labour
0.3–1.5 h
Emissions test
Usually unaffected
Parts involved
Transmission Mode Switch F, Wiring Harness

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