Electronic Stability Program: 4F-43
DTC Troubleshooting
DTC C1063: Solenoid Valve Power Supply Driver Circuit Failure
S7RS0B4604055
Wiring Diagram
DTC Detecting Condition and Trouble Area
Step Action Yes No
1 Was “Electronic Stability Program Check” performed? Go to Step 2. Go to “Electronic
Stability Program
System Check”.
2 Check ESP® control module 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 “E85-32”.
4) If OK, then measure voltage between terminal “E85-32”
of module connector and body ground.
Is it 10 – 14 V?
Go to Step 3. “WHT/RED” circuit
open.
3 Check ESP® control module ground circuit
1) Measure resistance between terminal “E85-16” and
“E85-47” ESP® control module connector and vehicle
body ground.
Are resistance less than 1
Ω
?
Substitute a known-
good ESP® hydraulic
unit / control module
assembly and recheck.
Ground circuit for ESP®
control module open or
high resistance.
3
4
12V
GRN/ORN
GRN
7
5V
12V
WHT
E85-35
E85-1
WHT/BLU
5
6
8
1
2
[A]
E85
16
1
15
2
3
4
5
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47
I6RS0B460025-02
[A]: ESP® control module connector (viewed from
terminal side)
3. Ignition switch 6. Power control unit
1. Battery 4. Junction block assembly 7. Solenoid valve power supply driver (transistor)
2. Main fuse box 5. ESP® hydraulic unit / control
module assembly
8. To solenoid valve
DTC Detecting Condition Trouble Area
• Mismatching solenoid output and solenoid monitor is
detected.
• Solenoid valve circuit is shorted to power or ground
circuit in ESP® control module
• Solenoid valve power supply circuit
• ESP® control module
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