Page 4046 of 4264
7A2-54 DIAGNOSIS (JR405E)
DTC P0763 (Flash Code 33) High Clutch Duty Solenoid Failure
C ontrol Valve
TCM
B6
B7
B8
B9
B22 (GND)
BLU/BLK
WHT/BLU
L&R Brake Solenoid
Term inal
Assembly
BLK/YEL
RED
2-4 Brake Solenoid
High Clutch Solenoid
Low Clutch Solenoid
E54 (5)
(9)
(10) (3)
(11)H23 (11)
(5)
(7)
(2)
(1)
GRY/REDC95
(6)
(7)
(8)
(9)
(22)
BLU/BLK
BLK/YEL RED
WHT/BLU
GRY/RED
Page 4047 of 4264
DIAGNOSIS (JR405E) 7A2-55
Gear Position & Shift Solenoid Operation
Range TCM terminal
Gear B8
(High clutch
solenoid) B9
(Low clutch
solenoid) B7
(2-4 brake
solenoid) B6
(Low & reverse
brake solenoid)
P
R Reverse
N
D, 3, 2 1st
2nd
3rd
4th
L 1st
2nd
3rd
4th
: On (Operated)
: Off (Not operated)
Setting Condition:
The high clutch duty solenoid signal is open circuit or short circuit.
(The voltage different from the output ON/OFF signals was detected while the TCM monitors the solenoid output
voltage.)
Fail Safe:
When the vehicle is running, the operation of the high clutch duty solenoid and the lock-up solenoid is stopped
(OFF), the gear position selected at the trouble detection is held, and the lock-up is inhibited.
After the vehicle stopped, all solenoid operations stop (OFF) and the gear is fixed to the 3rd.
Possible Cause:
High clutch duty solenoid malfunction.
Open (Off) circuit or short (On) circuit of the high clutch duty solenoid.
Open circuit, short circuit to battery or short circuit to ground between high clutch duty solenoid terminal 10 and
TCM terminal B8 (C95).
Insufficient ground condition of the high clutch duty solenoid.
Poor connection of each connector.
Page 4049 of 4264
DIAGNOSIS (JR405E) 7A2-57
DTC P0768 (Flash Code 34) Low Clutch Duty Solenoid Failure
C ontrol Valve
TCM
B6
B7
B8
B9
B22 (GND)
BLU/BLK
WHT/BLU
L&R Brake Solenoid
Term inal
Assembly
BLK/YEL
RED
2-4 Brake Solenoid
High Clutch Solenoid
Low Clutch Solenoid
E54 (5)
(9)
(10) (3)
(11)H23 (11)
(5)
(7)
(2)
(1)
GRY/REDC95
(6)
(7)
(8)
(9)
(22)
BLU/BLK
BLK/YEL RED
WHT/BLU
GRY/RED
Page 4050 of 4264
7A2-58 DIAGNOSIS (JR405E)
Gear Position & Shift Solenoid Operation
Range TCM terminal
Gear B8
(High clutch
solenoid) B9
(Low clutch
solenoid) B7
(2-4 brake
solenoid) B6
(Low & reverse
brake solenoid)
P
R Reverse
N
D, 3, 2 1st
2nd
3rd
4th
L 1st
2nd
3rd
4th
: On (Operated)
: Off (Not operated)
Setting Condition:
The low clutch duty solenoid signal is open circuit or short circuit.
(The voltage different from the output ON/OFF signals was detected while the TCM monitors the solenoid output
voltage.)
Fail Safe:
When the vehicle is running, the operation of the low clutch duty solenoid and the lock-up solenoid is stopped
(OFF), the gear position selected at the trouble detection is held, and the lock-up is inhibited.
After the vehicle stopped, all solenoid operations stop (OFF) and the gear is fixed to the 3rd.
Possible Cause:
Low clutch duty solenoid malfunction.
Open (Off) circuit or short (On) circuit harness of the low clutch duty solenoid.
Open circuit, short circuit to battery or short circuit to ground between low clutch duty solenoid terminal 3 and
TCM terminal B9 (C95).
Insufficient ground condition of the low clutch duty solenoid.
Poor connection of each connector.
Page 4052 of 4264
7A2-60 DIAGNOSIS (JR405E)
DTC P0748 (Flash Code 35) Line Pressure Solenoid Failure
Control Valve
TCM
B17
B23
BLK
Lock-up Solenoid
Terminal
Assembly
VIO
Line Pressure Solenoid
E54 (4)
(6)H23 (14)
(6)C95 (17)
(23)
BLK
VIO
Setting Condition:
The line pressure solenoid signal is open circuit or short circuit.
(The voltage different from the output ON/OFF signals was detected while the TCM monitors the solenoid output voltage.)
Fail Safe:
The operation of the line pressure solenoid is stopped (OFF).
Possible Cause:
Line pressure solenoid malfunction.
Line pressure solenoid harness open (Off) circuit or short (On) circuit.
Open circuit, short circuit to battery or short circuit to ground between line pressure solenoid terminal 6 and TCM
terminal B23 (C95).
Insufficient ground condition of the line pressure solenoid.
Poor connection of each connector.
Page 4054 of 4264
7A2-62 DIAGNOSIS (JR405E)
DTC P1860 (Flash Code 36) Lock-up Duty Solenoid Failure
Control Valve
TCM
B17
B23
BLK
Lock-up Solenoid
Terminal
Assembly
VIO
Line Pressure Solenoid
E54 (4)
(6)H23 (14)
(6)C95 (17)
(23)
BLK
VIO
Setting Condition:
The lock-up duty solenoid signal is open circuit or short circuit.
(The voltage different from the output ON/OFF signals was detected while the TCM monitors the solenoid output voltage.)
Fail Safe:
The lock-up is inhibited.
Possible Cause:
Lock-up duty solenoid malfunction.
Open (Off) circuit or short (On) circuit of the lock-up duty solenoid.
Open circuit, short circuit to battery or short circuit to ground between lock-up duty solenoid terminal 4 and TCM
terminal B17 (C95).
Insufficient ground condition of the lock-up duty solenoid.
Poor connection of each connector.
Page 4056 of 4264
7A2 -64 DIAGNOSIS (JR405E)
DTC P1853 (Flash Code 26) Low & Reverse Brake Pressure Switch Failure
Control Valve
TCM
B1
B12
B20
RED/YEL
WHT/BLK
2-4 Brake Pressure SW
Terminal
Assembly
YEL
E54 (7)
(12)
(1)H23 (12)
(10)C95 (1)
(12)
(20)
RED/YEL
YEL
WHT/BLK
L&R Brake Pressure SW
High Clutch Pressure SWH22 (8)
Pre-setting Condition:
No gear shifting.
No Check Trans indicator lamp.
No system voltage failure.
No inhibitor switch failure.
Low & reverse brake duty solenoid 0 or 100 %.
ATF temperature more than 60 C.
ATF input voltage more than 0.1V.
Engine speed more than 500 rpm.
Page 4057 of 4264
DIAGNOSIS (JR405E) 7A2-65
Setting Condition:
During the running, the low & reverse brake pressure switch does not turn on though hydraulic pressure is
supposed to be generated in the low & reverse brake.
(All pre-setting conditions are met for 2.5 seconds, Low & reverse brake duty solenoid 0% and low & reverse
brake pressure switch off in R range)
Or
During the running, the low & reverse brake switch does not turn off though no hydraulic pressure is supposed to
be generated in the low & reverse brake.
(All pre-setting conditions are met for 2.5 seconds, 4th gear, all pressure switch on and gear ratio 0.652 - 0.735
in D range.)
Fail Safe:
No fail safe function
Possible Cause:
Low & reverse brake duty solenoid malfunction.
Low & reverse brake pressure switch wire open circuit or short circuit.
Open circuit, short circuit to battery or short circuit to ground between low & reverse brake pressure switch
terminal 12 and TCM terminal B12 (C95).
Low & reverse brake hydraulic circuit malfunction in the control valve.
Poor connection of each connector.
Reference:
When the low & reverse brake pressure switch is operated, following signal is outputted.
Measurement terminal: B12 (C95) and B22 (C95)
-At other than R rage or L range in 1st gear: More than 10V
-At R range or L range in 1 st gear: Less than 1V
