Dtc U1073: Control Module Communication Bus Off - Suzuki GRAND VITARA Owner's Manual

DTC U1073: Control Module Communication Bus Off

Wiring Diagram
WHT/BLU
WHT/RED
GRN/ORN
4
BLK/YEL
3
WHT/GRN
6
2
1
[A] [B]
E03
14 1
15 2
16 3
17 4
18 5
19 6
20 7
21 8
22 9
23 10
24 11
25 12
26 13
[A]: ABS hydraulic unit / control module connector
(viewed from terminal side)
[B]: ECM connector (viewed from harness side)
[C]: BCM connector (viewed from harness side)
[D]: TCM connector (viewed from harness side)
[E]: 4WD control module connector
(viewed from harness side)
[F]: Keyless start control module connector
(viewed from harness side)
[G]: Combination meter connector (viewed from
harness side)
DTC Detecting Condition
Transmission error that is inconsistent between transmission data and transmission monitor (CAN bus monitor) data is
detected more than 7 times continuously.
5
E03-1
12V
E03-14
12V
E03-7
BLK E03-13
E03-26
BLK
E03-12 RED
E03-6 WHT
E03-10 WHT/RED
WHT/BLU
E03-8
E23-19
WHT/BLU
E23-4 WHT/RED
7
G31-1
RED
G31-3 WHT
E23
15 14 13 12 11 10 9 8 7 6 5 4
27 26 25 24 22 21 20 19
30 29 28 23
45 44 43 42 41 40 3938 37 36 35 34
59 58 57 56 55 5453 52 51 50 49
60
[D]
E92
6 5 4 3 2
16 15 14 13 12 11 10 9
24 23 22 21 20 19
[F]
20 19 18 16 15 14
37 36 34 33 32 31 30 29
1. Battery
2. Main fuse box
3. Ignition switch
4. Circuit fuse (in junction block assembly)
5. ABS hydraulic unit / control module
assembly
6. ECM
7. BCM
12
[C]
3 2 1
20 19 18 17 16
18
17 16
40 39 38 37 36
33 32 31
48 47 46
[E]
12
1
26 25
8 7
18 17
G44
11 10 9 8 7 6 5 4 3
24 23
8
RED E92-17
E92-7
WHT
RED
WHT
10
RED G44-19
WHT G44-18
RED
WHT
G31
15 14 13 12 11 10 9 8 7
35 34 28 27 26
E91
11 10
6 5
21 20 19 18 17
[G]
G28
2 1
10 9 8 7 6
2221201918 17
8. TCM (for A/T model)
9. 4WD control module (if equipped)
10. Keyless start control module (if equipped)
11. Combination meter
12. CAN junction
ABS: 4E-27
S5JB0A4504020
9
E91-22
E91-23
11
G28-10
G28-8
4 3 2 1
25 24 23 22 21
3 2 1
16 15 14 13
5 4 3 2 1
1615141312 11
I5JB0A450020-02