2003 Toyota Avalon Shifting out of PARK position

Tiny
LYRIC
  • MEMBER
  • 2003 TOYOTA AVALON
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 43,000 MILES
On occasion, not every time, I attempt to move the
shift lever from PARK to DRIVE, the lever will not move out of the PARK position.
Just for my information, what is the connection
between stepping on the brake pedal, before moving
the shift lever out of the PARK position.
Thanx
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Sunday, November 9th, 2008 AT 5:17 PM

1 Reply

Tiny
IMPALASS
  • EXPERT
Hello

Excellent question. This is a safety lock. It is your Shift interlock control module. This prevents you from accidently putting it in gear and either the car moving forward through the front of the garage or reverse through the garage door. Much worse, hitting another car or a person.

SYSTEM OUTLINE

When the ignition SW is at ACC position, the current flows from ECU-ACC fuse to shift lock ECU TERMINAL ACC, and at ON position, the current flows from GAUGE NO.1 fuse to shift lock ECU TERMINAL IG.
1. SHIFT LOCK MECHANISM
When the signals that the brake pedal is depressed (Stop light SW ON) and the shift lever is placed in P position is input into the shift lock ECU while the ignition SW is ON, the shift lock ECU is activated and the current flows from shift lock ECU TERMINAL 10 to shift lock ECU TERMINAL SLS+ to shift lock solenoid to shift lock ECU TERMINAL SLS- to shift lock ECU TERMINAL E to GROUND.
As a result, the shift lock solenoid is turned on and (Plate stopper is released) the shift lever can be placed in a position other than P position.
2. KEY INTERLOCK MECHANISM
When the shift lever is placed to P position with the ignition SW ON or at ACC position, the current from shift lock ECU TERMINAL KLS+ to key interlock solenoid is cut off. As a result, the key interlock solenoid is turned off (The lock lever is released from lock position) and the ignition key can be placed to LOCK position from ACC.
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Sunday, November 9th, 2008 AT 6:09 PM

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