1A-146 Engine General Information and Diagnosis:
DTC P1674: CAN Communication (Bus Off Error)
S4RS0A1104080
Wiring Diagram
DTC Detecting Condition and Trouble Area
DTC Confirmation Procedure
1) Connect scan tool to DLC with ignition switch turned OFF.
2) Turn ON ignition switch and clear DTC by using scan tool.
3) Start engine and run it for 1 min. or more.
4) Check DTC and pending DTC.
Step
Action
Yes
No
1
Was “Engine and Emission Control System Check”
performed?
Go to Step 2.
Go to “Engine and
Emission Control
System Check: ”.
2
DTC check
1) Check DTC of TCM referring to “DTC Check: in Section
5A”.
Is there any DTC(s)?
Go to applicable DTC
diag. flow.
Substitute a known-
good ECM and recheck.
RED
WHT
E23-3
E23-18
RED
WHT
C37-13
C37-12
RED
WHT
RED
WHT
RED
WHT
RED
WHT
E46-1
G37-4
G28-8
G28-10
G37-2
C34-7
E46-2
C34-17
1
2
3
4
[C]
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
54 53
59
60
58
2
26
27
28
15
30
56
48
32 31
34
35
36
37
40
42
39 38
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
54 53
59
60
58
2
26
27
28
15
30
56
48
32 31
34
35
36
37
40
42
39 38
44
45
43
41
33
1
12
13
23
8
[A]
[B]
G37
E46
1
2
3
4
5
6
7
1
2
3
4
5
6
7
8
9
10
11
8
9
10
11
12
13
14
12
13
14
15
16
17
18
19
20
21
22
[D]
6
5
16 15 14 13 12 11
4 3
24 23
21
22
10 9
8 7
2
1
19
20
18 17
C34
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
C35
G28
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
27
28
29
30
31
32
I4RS0A110052-
[A]: BCM connector
(viewed from harness side)
[D]: TCM connector (equipped with A/T)
(viewed from harness side)
3. BCM
[B]: ECM connector
(viewed from harness side)
1. ECM
4. Combination meter
[C]: Combination meter connector
(viewed from harness side)
2. TCM (equipped with A/T)
DTC detecting condition
Trouble area
Transmission error that is inconsistent between
transmission data and transmission monitor (CAN bus
monitor) data is detected more than 7 times continuously.
(1 driving detection logic)
• ECM
• BCM
• TCM (equipped with A/T)
• Combination meter
• CAN communication line circuit
Содержание SWIFT RS415 2017
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