Dtc C1057: Esp® Control Module Power Supply Circuit Failure - Suzuki Swift Sport 2004 Service & Repair Manual

DTC C1057: ESP® Control Module Power Supply Circuit Failure
Wiring Diagram
[A]: ESP® control module connector (viewed from terminal side)
1. Battery
DTC Detecting Condition and Trouble Area
DTC Detecting Condition
• ESP® control module power supply voltage is too high.
• ESP® control module power supply voltage is too low.
DTC Troubleshooting
Step
1 Was "Electronic Stability Program Check" performed?
2 Check power supply circuit from battery
1) Disconnect ESP® hydraulic unit / control module
connector with ignition switch turned OFF.
2) Check for proper connection to ESP® control module
connector at terminals "E83-1", "E85-16" and "E85-47".
3) If OK, then turn ignition switch to ON position and
measure voltage between terminals "E85-1" and "E85-
16", "E85-47".
±
Are voltage 9.7 0.3 V or more?
3 Check ESP® control module ground circuit
1) Measure resistance between each terminal of "E85-16",
"E85-47" and vehicle body ground.
Is resistance less than 2
4 Check power supply circuit from battery
1) Measure voltage between positive battery terminal and
vehicle body ground with engine running.
±
Is voltage 9.7 0.3 V or more?
3
2
WHT/BLU E85-1
BLK E85-16
1
E85-47
BLK
Action
Ω
?
Electronic Stability Program:
[A]
12V
2. Main fuse box
3. ESP® hydraulic unit / control module assembly
• ESP® control module power supply circuit
• ESP® control module
Yes
Go to Step 2.
Go to Step 5.
Go to Step 4.
Imperfect short between
"WHT/BLU" wire circuit
and vehicle body
ground.
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
No
Go to "Electronic
Stability Program
System Check".
Go to Step 3.
"BLK" wire circuit in
open or high resistance.
Check charging system
referring to "Generator
Test (Undercharged
Battery Check) in
Section 1J".
4F-41
S7RS0B4604053
I6RS0B460023-02