C1057

DTC C1057

DTC Detecting Condition and Trouble Area






Circuit Diagram










DTC Troubleshooting


1. Was "ESP (R) System Check" performed?
YES
Go to Step 2.
NO
Go to ESP System Check ESP (R) System Check.
2. ESP (R) control module power supply and ground circuits check
Check ESP (R) control module power supply circuit and ground circuit. Component Tests and General Diagnostics
Are they in good condition?
YES
Go to Step 3.
NO
Repair ESP (R) control module power supply or ground circuits.
3. ESP (R) control module power supply voltage check
Measure battery voltage with engine running at 3000 rpm.
Is voltage between 9.4 V and 16.7 V?
YES
Substitute a known-good ESP (R) control module and recheck DTC. ESP Hydraulic Unit / Control Module Assembly Removal and Installation
NO
Check charging system. Testing and Inspection