Code No.C1459,
C1460, C1461, C1462, C1463: Shift Actuator System
OPERATION
When voltage is applied to the shift actuator terminal No.2 from the transfer-ECU, the
motor turns to the normal direction and the drive mode is shifted in the order of 2H → 4H → 4HLc → 4LLc.
When voltage is applied to the shift actuator terminal No.1, the motor turns to the reverse
direction and the drive mode is shifted in the order of 4LLc → 4HLc → 4H → 2H.
DIAGNOSIS CODE SET CONDITIONS
In the case that the transfer-ECU terminal voltage is more than the main
relay voltage (97% of specified voltage) or lower than the main relay voltage (10% of
specified voltage) when the shift is not operated, code No.C1459 is set.
When the shift actuator current is more than the target value +1 A during
drive, the code No.C1460 is set.
When the main relay voltage is 6 V or less, the code No.C1461 is set.
When the actual value of the shift actuator current is less than 0.1 A, the code
No.C1462 is set.
When the accumulated time to operate the shift actuator exceeds five minutes, code
No.C1463 is set as the overload of the shift actuator.
PROBABLE CAUSES
Malfunction of the shift actuator
Damaged harness wires and connectors
Malfunction of the transfer-ECU
DIAGNOSIS PROCEDURE
STEP 1. M.U.T.-III data list.
Item 25: Shift actuator current (Refer to ).
Item 27: Shift actuator voltage (Refer to ).
Q.
Is the check result normal?
Intermittent malfunction (Refer to GROUP 00 - How to Cope with Intermittent
Malfunction ).
Go to Step 2.
STEP 2. Measure the voltage at shift actuator connector C-15.
(1)Disconnect the shift actuator connector C-15.
(2)Turn the ignition switch to the ON position.
(3)Transmission gear should be neutral position.
(4)Measure the voltage between shift actuator connector C-15 terminal No.2 and earth
at the wiring harness side.
(5)When the operating transfer shift lever 2H → 4H, 4H → 4HLc or
4HLc → 4LLc. OK: System voltage
(6)Measure the voltage between shift actuator connector C-15 terminal No.1 and earth
at the wiring harness side.
(7)When the operating transfer shift lever 4LLc → 4HLc, 4HLc → 4H
or 4H → 2H. OK: System voltage
Q.
Is the check result normal?
Replace the shift actuator (Refer to GROUP 22B - Transfer ).
Go to Step 3.
STEP 3. Measure the voltage at transfer-ECU connector D-124.
(1)Disconnect the shift actuator connector C-15.
(2)Turn the ignition switch to the ON position.
(3)Transmission gear should be neutral position.
(4)Measure the voltage between transfer-ECU connector D-124 terminal No.3 and earth
at the ECU side.
(5)When the operating transfer shift lever 2H → 4H, 4H → 4HLc or
4HLc → 4LLc. OK: System voltage
(6)Measure the voltage between transfer-ECU connector D-124 terminal No.1 and earth
at the ECU side.
(7)When the operating transfer shift lever 4LLc → 4HLc, 4HLc → 4H
or 4H → 2H. OK: System voltage
)
)
)
)
)
Intermittent malfunction (Refer to GROUP 00 - How to Cope with Intermittent
Malfunction 
).
Go to Step 2.