Table of Contents
Advertisement
4F-30 Electronic Stability Program:
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®.
Are DTC C1034 and/or C1073 detected?
3
Check sensor calibration
1) Calibrate yaw rate / G sensor assembly referring to
"Sensor Calibration".
2) Clear all DTCs and check DTC for ESP®.
Are DTC C1017 and/or C1023 still detected?
4
Check yaw rate / G sensor assembly
1) Check yaw rate / G sensor assembly referring to "Yaw
Rate / G Sensor Assembly On-Vehicle Inspection".
Is it good condition?
DTC C1018: Brake Fluid Level Switch Failure
Wiring Diagram
1
12V
E46-5
E46-1
4
E46-2
[A]: ESP® control module connector (viewed from terminal side)
[B]: BCM connector (viewed from harness side)
DTC Detecting Condition and Trouble Area
DTC Detecting Condition
• Brake fluid level is too low.
• Input signal of brake fluid level switch to BCM is low
level.
Action
2
3
RED/BLK
RED
E85-13
4
WHT
E85-44
1. BCM
2. ESP® hydraulic unit control module assembly
Yes
Go to Step 2.
Go to applicable DTC
diag. flow.
Go to Step 4.
Substitute a known-
good ESP® hydraulic
unit / control module
assembly and recheck.
[A]
E85
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
Trouble Area
• Brake fluid level
• Brake fluid level switch circuit
• Brake fluid level switch
• BCM
• ESP® control module
No
Go to "Electronic
Stability Program
System Check".
Go to Step 3.
Yaw rate / G sensor
assembly calibration is
incompleted.
Substitute a known-
good yaw rate / G
sensor assembly and
recheck.
S7RS0B4604027
[B]
E46
7
6
5
4
3
2
1
14
13
12
11
10
9
8
I6RS0B460015-01
3. Brake fluid level switch
4. CAN driver
Hide quick links:
Advertisement
Chapters
Table of Contents
