4F-44 Electronic Stability Program:
DTC Troubleshooting
DTC 1071: ESP® Control Module Internal Defect
S7RS0B4604056
DTC Detecting Condition and Trouble Area
DTC Troubleshooting
1) Turn ignition switch to OFF position.
2) Check for proper connection from harness to ESP® control module.
3) If OK, substitute an ESP® hydraulic unit / control module assembly with correct part number.
4) Recheck system.
Step Action Yes No
1 Was “Electronic Stability Program Check” performed? Go to Step 2. Go to “Electronic
Stability Program
System Check”.
2 Check power supply circuit from battery
1) Check battery voltage.
Is it about 11 V or higher?
Go to Step 3. Check charging system
referring to “Battery
Inspection in Section
1J” and “Generator Test
(Undercharged Battery
Check) in Section 1J”.
3 Check fuse
1) Check main fuse for solenoid and its terminal.
Is it in good condition?
Go to Step 4. Replace fuse and check
for short circuit to
ground.
4 Check solenoid valve power supply circuit
1) Turn ignition switch to OFF position.
2) Disconnect control module connector.
3) Check for proper connection to ESP® control module at
terminal “E85-1”.
4) If OK, then measure voltage between connector terminal
“E85-1” and vehicle body ground.
Is it 10 – 14 V?
Substitute a known-
good ESP® hydraulic
unit / control module
assembly and recheck.
“WHT/BLU” circuit
imperfect short to
ground.
DTC Detecting Condition Trouble Area
ESP® control module internal defect is detected. • ESP® control module
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