P081F

Brake Transmission Shift Interlock (BTSI) Signal Correlation

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$17–89 (est.)

Symptoms

Difficulty shifting gears
Gear selector stuck in Park position
Check Engine light comes on
The car does not respond to pressing the brake pedal when changing gears

Causes

Malfunction of the brake pedal position sensor
Damage to BTSI wiring harness
Mechanical problems in the gear shift mechanism
TCM module malfunction
Fuse or relay problems

How to Fix

Check the condition of the brake pedal position sensor
Inspect the BTSI wiring harness for damage.
Check the gear shift mechanism for mechanical damage
Scan the TCM for errors
If necessary, replace faulty components

Related codes

P0800 P0801 P081C