Brake Transmission Shift Interlock (BTSI) Control Circuit
Fault on the brake transmission shift interlock (BTSI) circuit — prevents shifting from Park unless brake pedal is depressed.
Affected components
- Btsi solenoid
Common causes
- High likelihood: BTSI solenoid fault
Possible symptoms
- ABS warning light on
- ESC/stability control deactivated
- Possible reduced brake assist
- Speedometer may behave erratically
Diagnostic notes
- The malfunction indicator lamp may illuminate
Sources
Diagnostic information is provided for reference only. Confirm the code with a compatible scan tool and follow the vehicle manufacturer's service procedures before replacing components.