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4F-36 Electronic Stability Program:
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 for ESP®
1) Connect scan tool to DLC with ignition switch turned
OFF.
2) Turn ignition switch ON and check DTC for ESP®.
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
®
[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 applicable DTC
diag. flow.
Go to Step 4.
Repair or replace the
CAN communication
line.
control
S6JB0A4604032
[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 referring to
"Intermittent and Poor
Connection Inspection
in Section 00".
Go to Step 5.
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