Suzuki Grand Vitara JB627. Manual — part 156
3C-28 Transfer:
DTC C1213: Transfer Switch Circuit Open
S6JB0B3304014
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.
Troubleshooting
E91-18
E91-19
E91-20
BLU/ORN
BLU/BLK
LT GRN
1
2
12V
G59-4
G59-3
G59-2
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]
I5JB0A332016-01
[A]: 4WD control module connector “E91” (viewed from harness side)
1. 4WD control module
[B]: Transfer switch connector “G59” (viewed from harness side)
2. Transfer switch
DTC detecting condition
Trouble area
Transfer switch combination different from specification is
detected for more than 0.5 seconds.
• Transfer switch
• Transfer switch circuit
• 4WD control module
Step
Action
Yes
No
1
Was “4WD control system check” performed?
Go to Step 2.
Go to “4WD Control
System Check”.
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.
Transfer: 3C-29
DTC C1214: Transfer Switch Circuit Short
S6JB0B3304015
Wiring Diagram
3
Transfer switch check
1) Check transfer switch referring to “Transfer Switch
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 open and high resistance 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.
Step
Action
Yes
No
E91-18
E91-19
E91-20
BLU/ORN
BLU/BLK
LT GRN
1
2
12V
G59-4
G59-3
G59-2
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]
I5JB0A332016-01
[A]: 4WD control module connector “E91” (viewed from harness side)
1. 4WD control module
[B]: Transfer switch connector “G59” (viewed from harness side)
2. Transfer switch
3C-30 Transfer:
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.
Troubleshooting
DTC detecting condition
Trouble area
Transfer switch combination different from specification is
detected for more than 0.5 seconds.
• Transfer switch
• Transfer switch circuit
• 4WD control module
Step
Action
Yes
No
1
Was “4WD control system check” performed?
Go to Step 2.
Go to “4WD Control
System Check”.
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
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: 3C-31
DTC C1223 / C1235: Transfer Shift Actuator Motor Position Switch 1 Circuit Open / Transfer Shift
Actuator Motor Position Switch 2 Circuit Open
S6JB0B3304016
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
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