Suzuki Grand Vitara JB416 / JB420. Manual - part 179
3C-30 Transfer: Motor-Shift Type (Transfer with Shift Actuator)
DTC Confirmation Procedure
1) Clear DTC using scan tool.
2) Select transfer switch to “4H” position and keep its position for 10 seconds. Similarly select transfer switch to “4H-
lock”, “N” and “4L-lock” position.
3) Check DTC.
Troubleshooting
Step
Action
Yes
No
1
Was “4WD control system check” performed?
Go to Step 2.
Go to “4WD Control
System Check: Motor-
Shift Type (Transfer with
Shift Actuator)”.
2
Transfer switch circuit check
1) Disconnect transfer switch connector “G59” with ignition
switch OFF.
2) Check for proper connection to “G59-2”, “G59-3” and
“G59-4” terminals of transfer switch connector.
3) If connection is OK, measure voltage between “G59-2”,
“G59-3” or “G59-4” terminal of transfer switch connector
and vehicle body ground with ignition switch ON.
Is it 10 – 14 V?
Go to Step 3.
Go to Step 4.
3
Transfer switch check
1) Check transfer switch referring to “Transfer Switch
Inspection: Motor-Shift Type (Transfer with Shift
Actuator)”.
Is switch in good condition?
Substitute a known-
good 4WD control
module and recheck.
Replace transfer switch.
4
Wire harness check
1) Disconnect connector from 4WD control module
connector “E91” with ignition switch OFF.
2) Check for shorted to ground in related circuits.
• Between “G59-2” terminal of transfer switch connector
and “E91-18” terminal of 4WD control module
connector
• Between “G59-3” terminal of transfer switch connector
and “E91-19” terminal of 4WD control module
connector
• Between “G59-4” terminal of transfer switch connector
and “E91-20” terminal of 4WD control module
connector
Are they in good condition?
Substitute a known-
good 4WD control
module and recheck.
Repair circuit.