TRANSFER CONTROL SYSTEM 7D1-31
CONNECTOR LIST
No. Connector face No. Connector face
B-24
Green
Meter-B C-57
(4JH1-
TC)
ECM
B-54
White
J/B I2 C-67
BlackEHCU
B-62
White
Ignition switch (IGSUB : G1) C-94
(4JH1-
TC)
Gray TCM
B-63
White
Ignition switch (IGSUB : G2) C-95
(6VE1)
WhiteTCM
B-64
Silver
Weld splice 1(Illumination) C-107
WhiteJ/B E2
B-65
Silver
Weld splice 2 (Ground) C-108
WhiteJ/B E1
B-66
White
4WD switch C-109
SilverBody-LH ; ground
C-2
Silver
Engine room-RH ; Ground C-118
(4JH1-
TC)
WhiteA/C Resister & Neutral switch
C-36
Silver
Engine room-LH ; Ground C-119
(6VE1)
BlackAuto cruise actuator
C-56
(4JH1-
TC)
Gray
ECM R-15
BlackTransfer controller
7D1-32 TRANSFER CONTROL SYSTEM
No. Connector face No. Connector face
R-14
Black
Transfer controller H-3
(4JH1-
A/T)
WhiteBattery (+) Engine room
E-10
Silver
Engine ground H-4
(4JH1)
WhiteEngine Engine room
E-11
(4JH1)
(C24SE)
Natural
Green
Neutral switch H-6
White
Engine room
INST
E-12
(4JH1)
(C24SE)
Natural
Green
Neutral switch H-7
WhiteEngine room
INST
E-35
(4JH1-
TC
C24SE)
Black
Motor actuator H-22
(4JA1/H
1-M/T)
Gray Engine
Engine room C
E44
Gray
Vehicle speed sensor H-23
(4JA1-L)
Engine room B
T/mission
E-45
White
4WD switch H-29
(4JH1-
M/T)
WhiteBattery (+) Engine room C
E-46
Brown
H-L neutral switch H-31
(6VE1)
WhiteEngine room
T/mission
E-51
Black
Inhibiter switch H-32
WitheEngine room Rear body
E-61
(6VE1)
Black
ECM P-1
SilverBattery (+)
7D1-34 TRANSFER CONTROL SYSTEM
Diagnosis
Before determining a trouble (Non-trouble mode)
1. When shifting from 2H to 4H:
1-1-1 When the flashing frequency of the 4WD indicator is changed from 2Hz to 4Hz (Shft on the fly)
If the load is too large to shift the gears synchronously, the operation is repeated up to 3 times. If the shifting
is not effected after being repeated 3 times, the indicator frequency is changed from 2Hz to 4Hz and, at the
same time, the actuator condition is changed to 2H, indicator flashes at 4Hz for 10 seconds, and then goes
out.
Cause of excessive synchronous shifting load
Extremely low temperature (the oil viscosity of the front differential increases requiring a large load for
synchronization)
High speed (since the difference of relative revolutions of gears to be shifted synchronously is too large,
required work load per unit time becomes larger).
Step 1-1-1:
Stop the vehicle or decrease the speed and operate as required again.
1-1-2 When the flashing frequency of the 4WD indicator is changed from 2Hz to 4Hz (Rigid and free wheel
Hub) / Block out of meshing spline.
Step 1-1-2:
Run the vehicle forward and backward several meters and operate as required again.
1-2 When the flashing of 4WD indicator at 2Hz continues more than 11.5 seconds (repetition of 3 times of
above No.1 is counted) (Shift on the fly)
If there is difference of revolutions and phases between the front wheel and axle, connecting the front wheel
and axle is difficult.
Until shifting in the transfer and connection of the front wheel and axle are completed
, the indicator flashes
at a frequency of 2Hz. In the above case, the indicator continues flashing at a frequency of 2Hz until the
connection of the front axle is completed. (If the shifting in the transfer is not completed, the flashing
frequency is changed to 4Hz (above No.1).)
By correcting the difference of relative revolutions and deviation of phases, the shifting can be completed.
Step 1-2:
While the vehicle is running, make sure of safety around the vehicle and accelerate or decelerate the
vehicle while going straight.
When the vehicle is at a stop, run the vehicle forward and backward several meters.
2.
When shifting from 4H to 2H
2-1 When 4WD indicator continues flashing at 2Hz
When shifting from 4H to 2H, the 4WD indicator continues flashing at 2Hz until separation in the transfer and
the separation of the front wheel axle are completed. When torsional torque is accumulated in the drive
system, separation in the transfer and separation of the front axle is difficult. In such a case, they can be
separated by removing the torsional torque of the drive system.
Step 2-1:
While the vehicle is running, make sure of safety around the vehicle and accelerate or decelerate the
vehicle while going straight.
When the vehicle is in stop, run the vehicle several meters forward and backward.
: Shift on the fly only.
