Powertrain, generic · Transmission

P07D6 Transmission Mode Switch F Circuit High

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. P07D6 means the signal of switch F is above its upper limit – an open circuit at the pulled-up input or a short to positive. The opposite is P07D5.

Likely causes

Wire or connector to the switch open
Switch open internally
Signal wire shorted to positive

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

P07D4P07D5P07D3P07CDP071C

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