Operation CHARM: Car repair manuals for everyone.
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

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Control Module: Testing and Inspection

INSPECTION





1. Measure the voltage with the control unit and harness still connected.
2. Ground terminal (8) and then measure the terminal voltage.

Terminal Inspection Ignition Transfer Terminal
Number Item Switch Lever Voltage



1 Free Wheel ON 2H System Voltage
Engage Switch 4H[1] 0 Volts


2 4WD ON 2H System Voltage
Detection 4H, 4L 0 Volts
Switch


3 Ignition OFF - 0 Volts
Switch ON - System Voltage


6 High/Low ON Shifting
Detection From 4H to
Switch 4L or vice versa System Voltage
2H, 4H, 4L 0 Volts


7 Free-Wheel ON 4H, 4L 0 Volts
Clutch 2H[2] System Voltage
Changeover
Solenoid
Valve


10 4WD ON 2H 0 Volts
Indicator 4H, 4L System Voltage
Light

NOTE:
[1] When the vehicle has been moved once.
[2] Shift the lever from "4H" to "2H", and then turn the ignition switch to "OFF" and the back to "ON".