Serial Data Link Circuit Check - Suzuki GRAND VITARA 2005 Service Manual

4F-23 Electronic Stability Program:
Step
6 1) Check CAN communication circuit between combination
meter and ESP® control module referring to "DTC
U1073: Control Module Communication Bus Off: ".
Is CAN communication circuit in good condition?

Serial Data Link Circuit Check

Wiring Diagram
WHT/GRN
2
+BB
9
1
G
[A]: ESP® control module connector (viewed from
terminal side)
1. Battery
2. Main fuse box
3. Ignition switch
4. Junction block assembly
Inspection
Step
1 1) Turn ignition switch to ON position.
®
Does ESP warning lamp come ON?
2 1) Turn ignition switch to OFF position.
Are main fuses for ABS pump motor and ABS solenoid in
good condition?
3 1) Disconnect ESP® control module connector.
2) Check for proper connection to ESP® control module
connector at terminal "E53-35".
3) If OK then turn ignition switch to ON position and
measure voltage between terminal "E53-35" and vehicle
body ground.
Is it 10 – 14 V?
Action
WHT/BLU
WHT/RED
3
BLK/YEL
5
PPL/RED
6
RED
8
BLK 7
WHT
10
G1
5. Combination meter
6. ESP® warning lamp
7. Lamp driver module
8. CAN driver
9. Data link connector (DLC)
Action
Yes
Substitute a known-
good combination meter
and recheck. If ESP®
warning lamp remains
ON, substitute a known-
good ESP® hydraulic
unit / control module
assembly and recheck.
E53-32
E53-1
12V
4
GRN/ORN E53-35
13
11
E53-13
RED
8
WHT E53-44
12
PPL/WHT E53-33
E53-16
BLK
E53-47
BLK
10. To ECM, BCM, SDM, 4WD control module and
11. Junction connector
12. To ECM, BCM, 4WD control module, immobilizer
13. ESP® hydraulic unit / control module assembly
Yes
Go to Step 2.
Go to Step 3.
Go to Step 4.
No
Repair or replace.
[A]
12V
32
33
34
35
36
37
38
39
40
41
42
43
44
45
12V
46
47
immobilizer control module (ICM)
control module (ICM) and steering angle sensor
No
Go to Step 6.
Replace fuse and check
for short.
"GRN/ORN" wire circuit
open.
S5JB0B4604057
E53
1
17
2
18
3
19
4
20
5
21
6
22
7
23
8
24
9
25
10
26
11
27
12
28
13
29
14
30
15
31
16
I6JB01460014-01