A SERVICE OF

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ELECTRICAL SYSTEM 17-75
Actuator Control System
Failure Indication Pattern and Failure Part
No. Failure Indication Pattern Failure Part
1 Selectable 2WD/4WD actuator
2 Engine brake actuator
3
Both the selectable 2WD/4WD
actuator and the engine brake
actuator
Malfunction Mode
No. Malfunction Mode Probable Faulty Part/Location Check Number
2WD/4WD actuator 1
Controller power supply 3
1 Speed sensor 4
The 2WD/4WD actuator does not
operate correctly.
2WD/4WD shift switch 5
Controller
6
Engine brake actuator 2
Controller power supply 3
2
Speed sensor
4
The engine brake actuator does not
operate correctly.
F/R detecting sensor
7
Controller 6
3 Indicator light (LCD) 8
The 2WD/4WD indicator light does not
switch.
Controller 6