Suzuki Grand Vitara JB416 / JB420. Manual — part 183
3C-46 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 run it for 1 min. or more.
3) Stop vehicle and check DTC.
Troubleshooting
[D]: ABS hydraulic unit/control module connector (viewed from terminal side)
4. Keyless start control module (if equipped)
[E]: Combination meter connector (viewed from harness side)
5. ECM
[F]: 4WD control module connector (viewed from harness side)
6. ABS hydraulic unit / control module
[G]: BCM connector (viewed from harness side)
7. Combination meter
[H]: DLC (viewed from harness side)
8. DLC
DTC detecting condition
Trouble area
Transmission error of communication data for 4WD control
module is detected more than 7 times at more than specified
error counts continuously.
• CAN communication circuit
• ECM
• BCM
• 4WD control module
• TCM
• Combination meter
• Keyless start control module (if equipped)
• ABS hydraulic unit / control module
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
Control module connector check
1) Check connection of connectors of all control modules
communicating by means of CAN.
2) Recheck DTC in TCM.
Is DTC U1073 detected?
Go to Step 3.
Intermittent trouble.
Check for intermittent
referring to “Intermittent
and Poor Connection
Inspection in Section
00”.
3
CAN communication circuit check
1) Turn ignition switch to OFF position.
2) Disconnect connectors of all control modules
communicating by means of CAN.
3) Check CAN communication circuit between control
modules for open, short and high resistance.
Is each CAN communication circuit in good condition?
Go to Step 4.
Repair circuit.
4
Check DTC
1) Turn ignition switch to OFF position.
2) Disconnect each connector.
• ECM
• ABS hydraulic unit / control module
• BCM
• TCM (if equipped)
• Keyless start control module (if equipped)
3) Recheck DTC in 4WD control module.
Is DTC U1073 detected?
Check 4WD control
module power and
ground circuit. If circuits
are OK, substitute a
known-good 4WD
control module and
recheck.
Check applicable
control module power
and ground circuit. If
circuit is OK, substitute
a known-good
applicable control
module and recheck.
Transfer: Motor-Shift Type (Transfer with Shift Actuator) 3C-47
DTC U1100: Lost Communication with ECM
S5JB0A3314053
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
I5JB0A332021-01
[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)
[D]: ABS hydraulic unit/control module connector (viewed from terminal side)
4. Keyless start control module (if equipped)
[E]: Combination meter connector (viewed from harness side)
5. ECM
[F]: 4WD control module connector (viewed from harness side)
6. ABS hydraulic unit / control module
[G]: BCM connector (viewed from harness side)
7. Combination meter
[H]: DLC (viewed from harness side)
8. DLC
3C-48 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 run it for 1 min. or more.
3) Stop vehicle and check DTC.
Troubleshooting
DTC detecting condition
Trouble area
Reception error of communication data for ECM is detected for
longer than specified time continuously.
• CAN communication circuit
• ABS hydraulic unit / control module
• ECM
• 4WD control module
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
DTC check
1) Check DTC in 4WD control module.
Is DTC U1100 and DTC U1073 detected together?
Go to Step 3.
3
DTC check
1) Check DTC in ECM.
Is DTC P1674 detected?
Go to “DTC P1674:
CAN Communication
(Bus Off Error) in
Section 1A”.
Go to Step 4.
4
Check each control module connectors
1) Check connection of connectors of all control modules
communicating by means of CAN.
2) Recheck in 4WD control module.
Is DTC U1100 detected?
Go to Step 5.
NO Intermittent trouble.
Check for intermittent
referring to “Intermittent
and Poor Connection
Inspection in Section
00”.
5
CAN communication circuit check
1) Turn ignition switch to OFF position.
2) Disconnect connectors of all control modules
communicating by means of CAN.
3) Check CAN communication circuit between control
modules for open, short and high resistance.
Is each CAN communication circuit in good condition?
Check ECM power and
ground circuit. If circuit
is OK, substitute a
known-good ECM and
recheck.
Repair circuit.
Transfer: Motor-Shift Type (Transfer with Shift Actuator) 3C-49
DTC U1101: Lost Communication with TCM
S5JB0A3314054
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
I5JB0A332021-01
[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)
[D]: ABS hydraulic unit/control module connector (viewed from terminal side)
4. Keyless start control module (if equipped)
[E]: Combination meter connector (viewed from harness side)
5. ECM
[F]: 4WD control module connector (viewed from harness side)
6. ABS hydraulic unit / control module
[G]: BCM connector (viewed from harness side)
7. Combination meter
[H]: DLC (viewed from harness side)
8. DLC
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