Powertrain, generic · Transmission

P0928 Gear Shift Lock Solenoid/Actuator Control Circuit A/Open

Check engine lightUsually off
EmissionsNot relevant
Drive cycleNot required
Limp modeNo

The module that drives the shift lock (brake transmission shift interlock, BTSI) sees no continuity on control circuit A, so it cannot reliably release the selector from Park. FCA/Chrysler uses the code as P0928-00 BTSI Control: bulletin 08-072-14 (2013-14 Ram 1500, 2014 Durango with 8-speed) and 21-034-15 (2015 Chrysler 300 rotary shifter) name it when the selector will not leave Park or the knob turns without the brake applied; the cure there is a new electronic shifter. P0929 is the plausibility fault, P0930 and P0931 the low and high faults of circuit A, P092A the same open fault on circuit B. The driver usually cannot shift out of Park until the fault clears or the manual release is used.

Likely causes

Internal fault in the electronic shifter module, often logged together with P0607 (documented by FCA)
Shift lock solenoid coil open
Broken wire, poorly crimped or pushed-out terminal on the shift lock circuit

Symptoms

  • Selector lever will not move out of Park even with the brake pressed
  • Problem may disappear after the ignition is switched off and the modules go to sleep
  • Rotary or electronic shifter can be moved without the brake applied
  • Shift position flashes or a message asks to return the selector to Park

Repair estimate

DifficultyMediumWorkshop job
Parts and labour€60–900
Time0.3–2 h

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

Parts involved

gear shift lock solenoid agear shift modulewiring harnesstcm

Related codes

P0929P0930P0931P092AP0607P0571

References: static.nhtsa.gov, static.nhtsa.gov, static.nhtsa.gov.