Suzuki GRAND VITARA 2005 Service Manual page 415

DTC C1073: Lost Communication With Yaw Rate / G Sensor Assembly
Wiring Diagram
1
L39-2
2
L39-1
L39-3
L39-5
[A]: ESP® control module connector (viewed from
terminal side)
[B]: Yaw rate / G sensor assembly connector (viewed
from harness side)
DTC Detecting Condition and Trouble Area
DTC Detecting Condition
CAN line communication error in ESP® control module
and yaw rate / G sensor assembly is detected.
DTC Troubleshooting
Step
1 Was "Electronic Stability Program Check" performed?
2 DTC check
1) Connect scan tool to DLC with ignition switch turned
OFF.
2) Turn ignition switch ON and check DTC.
Is DTC C1057 detected?
3 Check each control module connectors
1) Check connection of connectors of all control modules
communicating by means of CAN (for yaw rate / G
sensor assembly).
2) Check DTC for ESP®.
Is DTC C1073 detected?
4 CAN communication circuit check
1) Turn ignition switch to OFF position.
2) Disconnect connectors of ESP® control module and yaw
rate / G sensor assembly.
Is each CAN communication circuit between ESP
module and yaw rate / G sensor assembly opened, shorted
or high resistance?
3
E53-29
BLK
2
WHT E53-25
12V
PNK/WHT E53-37
PNK/GRN
E53-31
1. Yaw rate / G sensor assembly
2. CAN driver (for yaw rate / G
sensor assembly)
Action
®
Electronic Stability Program:
[A]
E53
32 1
17
33 2
18
34 3
19
35 4
20
36 5
21
37 6
22
38 7
23
39 8
24
40 9
25
41 10
26
42 11
27
43 12
28
44 13
29
45 14
30
46 15
31
47 16
3. ESP® hydraulic unit control module assembly
Trouble Area
• CAN communication circuit (for yaw rate / G sensor
assembly)
• Yaw rate / G sensor assembly
• ESP® control module
Yes
Go to Step 2.
Go to "DTC C1057:
ABS (EPS‚) Control
Module Power Supply
Circuit Failure: in
Section 4E".
Go to Step 4.
Repair or replace the
CAN communication
line.
control
4F-38
S5JB0B4604077
[B]
L39
3 2 1
6 5 4
I6JB01460022-03
No
Go to "Electronic
Stability Program
Check: ".
Go to Step 3.
Check for intermittent
trouble. Check for
intermittent referring to
"Intermittent and Poor
Connection Inspection:
in Section 00 in related
manual".
Go to Step 5.