Powertrain, generic · Transmission

P07D4 Transmission Mode Switch F Circuit

Check engine lightUsually off
EmissionsNot relevant
Drive cycleNot required
Limp modeNo

Transmission mode switches select alternative shift programs such as sport, winter, eco or tow/haul; J2012 numbers them A to F without saying which button is which. Switch F is the sixth and last of the family after A (P071A–P071C), B (P071D–P071F), C (P078F, P07CC, P07CD), D (P07CE–P07D0) and E (P07D1–P07D3). No manufacturer document available to us uses switches C to F; GM reads its analog drive mode switch under its own codes (low below 21–29 % of 5 V, high from 94 %, two trips), newer selectors under P05D0–P05D3. P07D4 is the general circuit fault of switch F: its state is invalid or implausible, for example two contacts at once or an in-between value. The program behind it cannot be selected; the MIL normally stays off. Low and high are P07D5/P07D6.

Likely causes

Switch or button faulty or sticking
Wire or connector open or shorted
Moisture or dirt in the switch
Control module input

Symptoms

  • Mode F program cannot be selected or stays active
  • Mode indicator missing or wrong
  • Transmission stays on the normal program

Repair estimate

DifficultyEasyDIY possible
Parts and labour€20–250
Time0.3–1.5 h

Typical range across vehicles; the real cost depends on what the testing finds.

Parts involved

transmission mode switchswitch wiringtransmission control module

Related codes

P07D5P07D6P07D1P078FP071A

References: law.cornell.edu, gsi.ext.gm.com.