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4F-40 Electronic Stability Program:
DTC C1041 / C1042 / C1043 / C1044 / C1045 / C1046 / C1051 / C1052 / C1053 / C1054 / C1055 / C1056:
Solenoid Circuit Failure
DTC C1041 / C1045 / C1051 / C1055: Right-Front / Left-Front / Right-Rear / Left-Rear Inlet Solenoid
Circuit Failure
DTC C1042 / C1046 / C1052 / C1056: Right-Front / Left-Front / Right-Rear / Left-Rear Outlet Solenoid
Circuit Failure
DTC C1043 / C1044: Master Cylinder Cut Solenoid Circuit No. 1 / No. 2 Failure
DTC C1053 / C1054: Low Pressure Solenoid Circuit No. 1 / No. 2 Failure
Wiring Diagram
WHT/BLU
2
1
3
BLK
BLK
[A]: ESP® control module connector (viewed
from terminal side)
1. Battery
2. Main fuse box
DTC Detecting Condition and Trouble Area
DTC Detecting Condition
Mismatching solenoid output and solenoid monitor is
detected.
DTC Troubleshooting
Step
1
Was "Electronic Stability Program Check" performed?
2
Check solenoid valve power supply circuit
1) Turn ignition switch to OFF position.
2) Disconnect ESP® control module connector.
3) Check for proper connection to ESP® control module
connector at terminal "E85-1", "E85-16" and "E85-47".
4) If OK, then measure voltage between terminal "E85-1" of
module connector and "E85-16, E85-47".
Are they 10 – 14 V?
E85-1
12V
5V
5
6
E85-16
E85-47
3. ESP® hydraulic unit / control module assembly
4. Solenoid valve
5. Solenoid valve power supply driver (transistor)
Action
4
Trouble Area
• ESP® control module
Yes
Go to Step 2.
Substitute a known-
good ESP® hydraulic
unit /control module
assembly and recheck.
S7RS0B4604052
[A]
E85
1
32
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
I6RS0B460021-01
6. Solenoid valve driver (transistor)
No
Go to "Electronic
Stability Program
System Check".
"WHT/BLU" or "BLK"
circuit open.
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