Suzuki GRAND VITARA JB416, Service Manual

Page: 151 / 474

Transfer: Motor-Shift Type (Transfer with Shift Actuator) 3C-34
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 shift actuator motor position switch circuit
check
1) Disconnect transfer shift actuator connector “C54” with
ignition switch OFF.
2) Check for proper connection to “C54-2”, “C54-3” and
“C54-5” terminals of transfer shift actuator connector.
3) If connection is OK, measure voltage between “G54-2”,
“G54-3” or “G54-5” terminal of transfer switch connector
and vehicle body ground with ignition switch ON.
Is it approx. 5 V?
Go to Step 3. Go to Step 4.
3 Transfer shift actuator position switch check
1) Check transfer shift actuator position switch referring to
“Transfer Assembly Inspection: Motor-Shift Type
(Transfer with Shift Actuator)”.
Is actuator in good condition?
Substitute a known-
good 4WD control
module and recheck. Faulty actuator position
switch. Replace transfer
shift actuator.
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 “C54-2” terminal of transfer shift actuator
connector and “E91-25” terminal of 4WD control
module connector
• Between “C54-3” terminal of transfer shift actuator
connector and “E91-26” terminal of 4WD control
module connector
• Between “C54-5” terminal of transfer shift actuator
connector and “E91-24” terminal of 4WD control
module connector
Are they in good condition?
Substitute a known-
good 4WD control
module and recheck. Repair circuit.