INSPECTION


4WD INDICATOR-ECU

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

EASY SELECT 4WD
Terminal No.
 Inspection item
 Ignition switch
 Transfer shift position
 Terminal voltage
1
 Free wheel engage switch
 ON
 2H
 System voltage
4H*1
 0 V
2
 4WD detection switch
 ON
 2H
 System voltage
4H, 4L
 0 V
3
 Ignition switch
 ON
 -
 System voltage
OFF
 -
 0 V
6
 High/low detection switch
 ON
 While switching between 4H and 4L
 System voltage
2H, 4H, 4L
 0 V
7
 Free wheel clutch changeover solenoid valve
 ON
 4H, 4L
 0 V
2H*2
 System voltage
10
 4WD indicator lamp
 ON
 2H
 0 V
4H, 4L
 System voltage
note
    *1: When vehicle has been moved once.
    *2: Shift the lever from 4H to 2H, and then turn the ignition switch to OFF and then back to ON.

<SUPER SELECT 4WD>
Terminal No.
 Inspection item
 Ignition switch
 Transfer shift position
 Terminal voltage
1
 Free wheel engage switch
 ON
 2H
 System voltage
4H*1
 0 V
2
 4WD operation detection switch
 ON
 2H
 System voltage
4H, 4HLc, 4LLc
 0 V
3
 Ignition switch
 ON
 -
 System voltage
OFF
 -
 0 V
4
 Centre differential lock indicator lamp
 ON
 4H
 0 V
4HLc
 System voltage
5
 Rear wheel indicator lamp
 ON
 While switching between 4HLc and 4LLc
 0 V
2H, 4H, 4HLc, 4LLc
 System voltage
6
 High/low detection switch
 ON
 While switching between 4HLc and 4LLc
 System voltage
2H, 4H, 4HLc, 4LLc
 0 V
7
 Centre differential lock operation detection switch
 ON
 4HLc
 0 V
4H*2
 System voltage
9
 Centre differential lock detection switch
 ON
 4HLc
 0 V
4H*2
 System voltage
10
 Front wheel indicator lamp
 ON
 While switching between 4HLc and 4LLc
 0 V
4H, 4HLc, 4LLc
 System voltage
note
    *1: When vehicle has been moved once.
    *2: Shift the lever from 4HLc to 4H, and then turn the ignition switch to OFF and then back to ON.