This code is triggered when the Transmission Control Module (TCM) detects that the gear shift lock solenoid “B” is stuck in the ON position, even when it shouldn’t be.
1. Gear shifter stuck in Park or Neutral
2. Delay or difficulty shifting gears
3. Check Engine Light (CEL) on
4. Transmission may enter limp mode
1. Faulty gear shift lock solenoid “B”
2. Damaged or corroded wiring/connectors
3. Faulty Transmission Control Module (TCM)
4. Short to power or ground in the solenoid circuit
5. Internal mechanical issues in the gear shifter
1. Scan with a professional OBD-II tool to confirm code and related freeze frame data
2. Inspect and clean gear shift lock solenoid connectors and wiring
3. Test solenoid B for electrical continuity and operation
4. Replace the solenoid if it is stuck or not actuating properly
5. If wiring and solenoid are OK, inspect/replace TCM
This fault code may appear in vehicles with automatic transmissions, especially those using electronically controlled gear shifters, such as:
1. Ford
2. Hyundai
3. Volkswagen (DSG)
4. GM
5. BMW (some models with electronic gear locks)