Powertrain, generic · Transmission

P092C Gear Shift Lock Solenoid/Actuator Control Circuit B Low

Check engine lightUsually off
EmissionsNot relevant
Drive cycleNot required
Limp modeNo

The voltage on shift lock control circuit B is lower than expected, usually because the wire or the solenoid has a path to ground. No manufacturer documents this code publicly or names the lock behind circuit B. GHSP patents describe shifters with a second solenoid next to the Park lock, for example one that holds the lever in Neutral unless speed is low and the brake is applied. CARB requires output circuits to be checked for shorts but allows safety-only systems to be left out. P092D is the high fault, P092A the open and P092B the plausibility fault of circuit B; P0930 is the low fault on circuit A. A shorted lock circuit can leave the lever locked or let it move without the brake.

Likely causes

Circuit B wire chafed to ground near the shifter
Shorted turns in the second lock solenoid
Liquid spilled into the shifter causing leakage to ground

Symptoms

  • Lever locked in a position despite brake applied
  • Lock does not engage, lever moves without brake
  • Warning message about the shifter

Repair estimate

DifficultyMediumDIY possible
Parts and labour€40–700
Time0.5–2.5 h

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

Parts involved

gear shift lock solenoid bwiring harnesstcm

Related codes

P092AP092BP092DP0930

References: law.cornell.edu, patents.google.com, patents.google.com.