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.
Transfer: Motor-Shift Type (Transfer with Shift Actuator) 3C-31
DTC C1223 / C1235: Transfer Shift Actuator Motor Position Switch 1 Circuit Open / Transfer Shift
Actuator Motor Position Switch 2 Circuit Open
S5JB0A3314043
Wiring Diagram
DTC Detecting Condition and Trouble Area
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.
5V
12V
E91-2
5V
YEL
RED/BLK
BLU
M
E91-3
E91-25
E91-26
RED
E91-24
BLK/YEL
1
2
3
C54-1
C54-4
C54-2
C54-3
C54-5
4
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
[A]
1
2
3
4
5
6
[B]
I5JB0A332017-01
[A]: 4WD control module connector “E91” (viewed from harness side)
2. Transfer shift actuator motor position switch
[B]: Transfer shift actuator connector “C54” (engine harness side) (viewed from harness side)
3. Transfer shift actuator motor
1. Transfer shift actuator
4. 4WD control module
DTC detecting condition
Trouble area
Transfer shift actuator motor position switch signal voltage 4.2 V
or more.
• Transfer shift actuator motor position switch
• Transfer shift actuator motor position switch
circuit
• 4WD control module
3C-32 Transfer: Motor-Shift Type (Transfer with Shift Actuator)
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 open and high resistance 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 it in good condition?
Substitute a known-
good 4WD control
module and recheck.
Repair circuit.
Transfer: Motor-Shift Type (Transfer with Shift Actuator) 3C-33
DTC C1224 / C1236: Transfer Shift Actuator Motor Position Switch 1 Circuit Short / Transfer Shift
Actuator Motor Position Switch 2 Circuit Short
S5JB0A3314044
Wiring Diagram
DTC Detecting Condition and Trouble Area
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.
5V
12V
E91-2
5V
YEL
RED/BLK
BLU
M
E91-3
E91-25
E91-26
RED
E91-24
BLK/YEL
1
2
3
C54-1
C54-4
C54-2
C54-3
C54-5
4
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
[A]
1
2
3
4
5
6
[B]
I5JB0A332017-01
[A]: 4WD control module connector “E91” (viewed from harness side)
2. Transfer shift actuator motor position switch
[B]: Transfer shift actuator connector “C54” (engine harness side) (viewed from harness side)
3. Transfer shift actuator motor
1. Transfer shift actuator
4. 4WD control module
DTC detecting condition
Trouble area
Transfer shift actuator motor position switch signal voltage 0.6 V
or less.
• Transfer shift actuator motor position switch
• Transfer shift actuator motor position switch
circuit
• 4WD control module
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