I have a 2002 Chevy Suburban and I am having a problem with the Shift Interlock System. The problem is that I do not need to step on the brake anymore to shift the vehicle out of PARK. I know that the system is supposed to allow you to shift into gear only after depressing the brake pedal, but my vehicle does not do this anymore.
I checked all the fuses in the fuse panel and under the hood and none are blown Also, I removed the dash underpanel and checked for voltage going into the BTSI solenoid (green wire w/white stripe), and there is no voltage going into the solenoid, even with the key ON. This grn/wht wire leads into the steering column by the switch.
Please tell me what I can may check next to solve this problem, or what the problem may be?
Battery voltage would only be present when the brake pedal is depressed.
When there are no power to activate the solenoid, the gear shift would be locked. You are having the opposite problem which means the solenoid is stuck in the on position. You would need to check the solenoid and its linkages to find out what is preventing the locking tab from returning.