Suzuki Grand Vitara JB416 / JB420 (ESP model). Manual — part 37
3C-43 Transfer: Motor-Shift Type (Transfer with Shift Actuator)
DTC Detecting Condition and Trouble Area
DTC Confirmation Procedure
1) Clear DTC using scan tool.
2) Start engine and drive vehicle at 30 km/h (19 mph) or more vehicle speed at least for 1 min.
3) Stop vehicle and check DTC.
Troubleshooting
DTC C1243: Internal Circuit Malfunction of 4WD Control Module
S5JB0E3314024
DTC Detecting Condition and Trouble Area
DTC Confirmation Procedure
1) Clear DTC using scan tool.
2) Turn ignition switch to ON position for 60 seconds.
3) Check DTC.
Troubleshooting
Substitute a known-good 4WD control module and recheck.
DTC detecting condition
Trouble area
4WD control module power supply voltage is out of specification
while vehicle is running at 20 km/h (12 mph) or more.
• 4WD control module power supply circuit
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
4WD control module power circuit check
1) Disconnect 4WD control module connector with ignition
switch OFF.
2) Check for proper connection to “E91” terminal of 4WD
control module connector.
3) If connection is OK, measure voltage between “E91-11”
terminal of 4WD control module connector and vehicle
body ground with ignition switch ON.
Is it 10 – 14 V?
Poor “E91-11”
connection or
intermittent trouble.
Check for intermittent
referring to “Intermittent
and Poor Connection
Inspection in Section 00
in related manual”. If
wire and connections
are OK, substitute a
known-good 4WD
control module and
recheck.
“4WD” fuse blown,
“WHT” or “BLK” wire is
circuit open or circuit
short.
DTC detecting condition
Trouble area
EEPROM Error
• 4WD control module
Transfer: Motor-Shift Type (Transfer with Shift Actuator) 3C-44
DTC C1246: Clutch Pedal Position (CPP) Switch Circuit Short
S5JB0E3314025
Wiring Diagram
DTC Detecting Condition and Trouble Area
DTC Confirmation Procedure
1) Clear DTC using scan tool.
2) Start engine and drive vehicle at 50 km/h (31 mile/h) or more vehicle speed at least for 1 min.
3) Stop vehicle and check DTC.
12V
E91-7
BLK/ORN
1
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]
I5JB0A332020-01
[A]: 4WD control module connector “E91” (viewed from harness side)
2. 4WD control module
1. CPP switch
DTC detecting condition
Trouble area
CPP switch signal is input when vehicle speed is 30 km/h (19
mph).
• CPP switch
• CPP switch circuit
• 4WD control module
3C-45 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
CPP switch circuit check
1) Disconnect CPP switch connector with ignition switch
OFF.
2) Check for proper connection to terminal of CPP switch
connector.
3) If connection is OK, measure voltage between “BLK/
ORN” terminal of CPP switch connector and vehicle
body ground with ignition switch ON.
Is it 10 – 14 V?
Go to Step 3.
Go to Step 4.
3
CPP switch check
1) Check CPP switch referring to “Clutch Pedal Position
(CPP) Switch Inspection and Adjustment in Section 5C
in related manual”.
Is switch in good condition?
Substitute a known-
good 4WD control
module and recheck.
Replace CPP switch.
4
Wire harness check
1) Disconnect connector from 4WD control module
connector “E91” with ignition switch OFF.
2) Check for proper connection to “E91-7” terminal of 4WD
control module connector.
3) If OK, measure resistance between “BLK/ORN” terminal
of CPP switch connector and “E91-7” terminal of 4WD
control module connector.
Is it 1 M
Ω
or more?
Substitute a known-
good 4WD control
module and recheck.
“BLK/ORN” wire is
shorted to ground
circuit.
Transfer: Motor-Shift Type (Transfer with Shift Actuator) 3C-46
DTC U1073: Control Module Communication Bus Off
S5JB0E3314026
Wiring Diagram
WHT
RED
WHT
RED
G44-18
G44-19
G44
[A]
[B]
[C]
[G]
1
2
3
4
5
6
7
8
9
10
11
14
15
16
36
34 33 32 31 30 29
24 23
37
18
19
20
G28-8
G28-10
WHT/BLU
WHT/BLU
WHT/RED
WHT/RED
E23-4
E23-19
WHT
RED
E03-12
E03-10
E03-6
E03-8
WHT
RED
E92-17
E92-7
WHT
RED
E91-22
E91-23
WHT
RED
G31-1
G31-3
6
5
16 15 14 13 12 11
4 3
24 23
21
22
10 9
8
7
2
1
19
20
18 17
E92
17 16
26 25
15 14
6
5
3
4
2
13 12
23 22
24
11 10 9
21 20 19
8 7
18
1
E93
2 1
E23
C37
3
4
18
19
5
6
7
10
11
17
20
47 46
49
50
51
21
22
52
16
25
9
24
14
29
55
57
5453
59
60
58
2
26
27
28
15
30
56
48
32 31
34
35
36
37
40
42
3938
44
45
43
41
33
1
12
13
23
8
3
4
18
19
5
6
7
10
11
17
20
47 46
49
50
51
21
22
52
16
25
9
24
14
29
55
57
5453
59
60
58
26
27
28
15
30
56
48
32 31
34
35
36
37
40
42
3938
44
45
43
41
33
12
13
23
8
1
2
3
4
5
6
7
8
9
10
11
17
1615141312
2221201918
G28
[E]
G31
1
2
3
4
7
8
9
10
11
14
15
16
36
34
35
24 23
21
22
28 27
25
26
37
39 38
40
18 17
13 12
19
20
[D]
E03
15
16
17
18
19
20
21
22
23
24
25
2
3
4
5
6
7
8
9
10
11
12
1
13
14
26
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
[F]
E91
WHT
RED
G31-2
G31-4
[H]
8
7
6
5
4
3
2
1
9
10
11
12
13
14
15
16
1
2
3
4
8
5
6
7
[I]
E53
16
1
15
2
3
4
5
6
7
8
9
10
11
12
13
14
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
9
E53-13
E53-42
E53-44
E53-46
I6JB01331002-02
[A]: Keyless start control module connector (if equipped) (viewed from harness side)
1. BCM
[B]: ECM connector (viewed from harness side)
2. 4WD control module
[C]: TCM connector (for A/T model) (viewed from harness side)
3. TCM (for A/T model)
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