1A-171 Engine General Information and Diagnosis:
DTC Troubleshooting
NOTE
Before this trouble shooting is performed, read the precautions for DTC troubleshooting referring to
“Precautions For DTC Troubleshooting: ”.
DTC P1674: CAN Communication (Bus Off Error)
S5JB0A1104058
Wiring Diagram
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.
G44
[A]
[B]
[C]
[H]
[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
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
[F]
G31
E91
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
1
2
3
10
11
12
16
17
18
15 14 13
19
20
21
25
26
5
6
WHT
RED
WHT
RED
G44-18
G44-19
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
WHT
RED
G31-1
G31-3
G31-2
G31-4
[E]
[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
8
7
6
5
4
3
2
1
9
10
11
12
13
14
15
16
8
1
2
3
4
5
6
7
9
I5JB0A110068-04
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