Powertrain, generic · Transmission

P07E4 Unable to Engage Park

Check engine lightOn
EmissionsRelevant
Drive cycleRequired
Limp modePossible

With shift-by-wire or park-by-wire, P, R, N and D are requested electrically (buttons, rotary selector, automatic park on shutdown) and an actuator moves the selector shaft or the park pawl; the module compares the requested with the range actually reached. P07E4 means park is not reached or not held within the allowed time. GM gives thresholds: 2 s in 2018 tables and the ICCM of its electronic range selector (2000 ms), 6–10 s in later tables, type B with the MIL after two trips; a 2018 bulletin for LaCrosse and XT5 blames a misaligned coupling of the range control module. Ford sets it with the wrench lamp instead of the MIL – on the 2020 Escape and Corsair a misrouted park release cable, on the Mach-E software – and applies the electric parking brake. Ram 1500 (2019) sets the MIL; Stellantis names a used manual park release as the most common cause.

Likely causes

Manual park release cable misrouted or actuated
Range actuator misaligned or its coupling offset
Control module software
Park lock actuator or its ground faulty
Range or park position signal wrong

Symptoms

  • Park cannot be selected, 'Park not available' message
  • Electric parking brake applies automatically
  • Wrench lamp (Ford) or MIL (GM, Ram)
  • Vehicle may roll away if not secured

Repair estimate

DifficultyMediumWorkshop job
Parts and labour€100–1,800
Time0.5–3 h

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

Parts involved

park lock actuatorpark position sensorelectronic range selectortransmission control module

Related codes

P07E6P07E5P073DP073EP07B5

References: gsi.ext.gm.com, gsi.ext.gm.com, gsi.ext.gm.com, static.nhtsa.gov.