Automatic Transmission/Transaxle: 5A-71
DTC P1774: CAN Communication Bus Off
S7RS0B5104038
Wiring Diagram
DTC Detecting Condition and Trouble Area
DTC Confirmation Procedure
1) Connect scan tool to DLC with ignition switch turned OFF.
2) Clear DTC.
3) Start engine and run it for 1 min. or more.
4) Check DTC.
RED
WHT
E03-6
E03-12
1
4
7
RED
WHT
2
[C]
[B]
G37
E46
1234567
1234567
891011
891011
121314
121314
151617
18
19202122
[E]
65
161514131211
43
2423 2122
10 9 8 7
21
1920 1817
C34
1716
26
25
1514
65 342
1312
232224
1110 9
212019
87
18
1
C35
[F]
RED
WHT
C37-13
C37-12
RED
WHT
C34-17
C34-7
3
1234567891011141516
36 34 33 32 31 30 29 24 2337
181920
[D]
[A]
G49
E23-3
E23-18
5
RED
WHT
G28-7
G28-9
RED
WHT
G49-19
G49-18
6
RED
WHT
E03-10
E03-8
G37-4
G37-2
RED
WHT
E46-1
E46-2
RED
WHT
RED
WHT
G28-8
G28-10
RED/BLK
WHT/BLK
G37-3
G37-1
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
E23
C37
34
1819
5671011
17
20
47 46
495051
2122
52
16
25
9
24
14
29
5557 54 53
59
60
58
2
262728
15
30
56
48
32 31
343536374042 39 38
44
45
43 41 33
1
1213
23
8
34
1819
5671011
17
20
47 46
495051
2122
52
16
25
9
24
14
29
5557 54 53
59
60 58
2
262728
15
30
56
48
32 31
343536374042 39 38
44
45
43 41 33
1
1213
23
8
G28
1234567
8
910111213141516
1718
19
20
212223242526272829303132
I6RS0C510008-01
1. ABS control module [A]: Terminal arrangement of ABS control module connector (viewed from terminal side)
2. ECM [B]: Terminal arrangement of BCM connector (viewed from harness side)
3. TCM [C]: Terminal arrangement of ECM connector (viewed from harness side)
4. BCM [D]: Terminal arrangement of combination meter connector (viewed from harness side)
5. Combination meter [E]: Terminal arrangement of TCM connector (viewed from harness side)
6. Keyless start control module [F]: Terminal arrangement of Keyless start control module connector (viewed from harness side)
7. DLC
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.
•ECM
•BCM
•TCM
• ABS control module
• Combination meter
• Keyless start control module
• CAN circuit