Inspection Of 4Wd Control Module And Its Circuits; Terminal Arrangement Of 4Wd Control Module Connector - Suzuki GRAND VITARA JB416 Service Manual

3C-53 Transfer: Motor-Shift Type (Transfer with Shift Actuator)

Inspection of 4WD Control Module and Its Circuits

4WD control module and its circuits can be checked at coupler connected to 4WD control module by measuring
voltage, pulse signal.
CAUTION
!
4WD control module cannot be checked by itself. It is strictly prohibited to connect voltmeter or
ohmmeter to 4WD control module with couplers disconnected from it.
Voltage and Signal Check
1) Check voltage using voltmeter (1) connected to each terminal of couplers.
2) Check signal using oscilloscope (2) connected to each terminal of couplers.
NOTE
• As each terminal voltage is affected by the battery voltage, confirm that it is 11 V or more when
ignition switch is turned ON.
• Pulse signal cannot be measured by voltmeter. It can be measured by oscilloscope.
• Item with asterisk (*) in normal voltage column can be read only by oscilloscope.
1
Terminal arrangement of 4WD control module connector (Viewed from harness side)
Terminal Wire
Number Color
E91-1 BLK Ground
Transfer actuator
E91-2 BLU
motor 1
12 11 10 9 8
26 25 24 23 22 21 20
Normal
Circuit
Voltage
0 – 1 V
10 – 14 V
0 – 1 V
7 6 5 4 3 2
19 18 17 16 15 14
Ignition switch turned to ON position and transfer shift
actuator being rotated N → 4H → 4H-lock direction or 4L-
lock → 4H-lock direction
Ignition switch turned to ON position and transfer shift
actuator in other than above-mentioned condition
S5JB0E3314030
2
I4JA01332053-01
1
13
I4JA01332054-01
Condition
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