Page 1057 of 1200
SPECIAL TOOLS
31TH AUTOMATIC TRANSAXLE
Puller Press Extension C-293-3
Adapter Blocks C-293±36
Adapter Blocks C-293±52
Puller Press C-293±PA
Slide Hammer C-637
Pressure Gauge (Low) C-3292
Pressure Gauge (High) C-3293SP
Dial Indicator C-3339
21 - 114 TRANSAXLEPL
Page 1058 of 1200
Spring Compressor C-3575±A
Band Adjusting Adapter
Oil Pump Puller C-3752
Seal Puller C-3981B
Universal Handle C-4171
Seal Installer C-4193A
Bearing Installer C-4637
Adapter C-4658
PLTRANSAXLE 21 - 115
SPECIAL TOOLS (Continued)
Page 1059 of 1200
Torque Tool C-4995
Adapter C-4996
Remover Kit L-4406
Bearing Remover Cup L-4406±1
Bearing Remover Jaws L-4406±2
Adapter L-4406±3
Gear Puller L-4407A
Puller L-4407±6
21 - 116 TRANSAXLEPL
SPECIAL TOOLS (Continued)
Page 1060 of 1200
Bearing Installer L-4408
Bearing Installer L-4410
Bearing Installer L-4411
Installer Adapter L-4429-3
Gear Checking Plate L-4432
Gear Removing Plate L-4434
Bearing Puller L-4435
Differential Tool L-4436A
PLTRANSAXLE 21 - 117
SPECIAL TOOLS (Continued)
Page 1061 of 1200
Housing Remover Adapter L-4437
Starter Nut L-4439
Transfer Shaft Remover-Installer L-4512
Bearing Cup Remover L-4517
Special Jaw Set L-4518
Installer L-4520
Bearing Splitter P-334
Bearing Cone Remover 5048
21 - 118 TRANSAXLEPL
SPECIAL TOOLS (Continued)
Page 1062 of 1200
Seal Remover 7794-a
Bearing Installer 5052
Bearing Cup Remover 6062-A
Bearing Installer 6536-A
Cooling System Tester 7700
PLTRANSAXLE 21 - 119
SPECIAL TOOLS (Continued)
Page 1063 of 1200
Page 1064 of 1200

TRANSAXLE
CONTENTS
page page
DESCRIPTION AND OPERATION
BRAKE TRANSMISSION SHIFT INTERLOCK
(BTSI) SYSTEM........................ 1
DIAGNOSIS AND TESTING
BRAKE TRANSMISSION SHIFT INTERLOCK
(BTSI) SYSTEM........................ 1REMOVAL AND INSTALLATION
BRAKE TRANSMISSION SHIFT INTERLOCK
(BTSI) CABLE ASSEMBLY................ 2
ADJUSTMENTS
BRAKE TRANSMISSION SHIFT INTERLOCK
(BTSI) SYSTEM ADJUSTMENT............ 4
DESCRIPTION AND OPERATION
BRAKE TRANSMISSION SHIFT INTERLOCK
(BTSI) SYSTEM
The Brake Transmission Shift Interlock (BTSI)
System, is a cable and solenoid operated system. It
interconnects the automatic transmission floor
mounted shifter to the steering column ignition
switch. The BTSI system locks the shifter into the
PARK position. The BTSI system is engaged when-
ever the ignition switch is in the LOCK or ACCES-
SORY position.
An additional electrically activated feature will
prevent shifting out of the PARK position unless the
brake pedal is depressed at least one-half an inch. A
solenoid integrated with the BTSI cable assembly
(Fig. 1) is energized when the ignition switch is in
the RUN position. When the key is in the RUN posi-
tion and the brake pedal is depressed, the shifter is
unlocked and will move into any position. The BTSI
system also prevents the ignition switch from being
turned to the LOCK or ACCESSORY position, unless
the shifter is fully locked into the PARK position.
DIAGNOSIS AND TESTING
BRAKE TRANSMISSION SHIFT INTERLOCK
(BTSI) SYSTEM
If the ignition switch cannot be turned to the
LOCK position, with the shifter in PARK and the
brake pedal depressed, an adjustment of the Brake
Transmission Shift Interlock (BTSI) System may be
required. To adjust the Brake Transmission Shift
Interlock (BTSI) System, follow the procedure in the
Adjustment section of this group.
Fig. 1 BTSI Cable Assembly
PLTRANSAXLE 21 - 1