C2366

DTC C2366 TCS VALVE PRIMARY (USV1) ERROR
DTC C2370 TCS VALVE SECONDARY (USV2) ERROR
DTC C2372 ESC VALVE 1 (HSV1) ERROR
DTC C2374 ESC VALVE 2 (HSV) ERROR

COMPONENT LOCATION

Refer to DTC C1235. C1235

GENERAL DESCRIPTION

The HECU is composed of a ECU (Electronic Control Unit) and an HCU (Hydraulic Control Unit), so the HECU hardware includes all solenoid valves inside the unit as well as the ECU. Solenoid valves are switched to ON, OFF by HECU when the ABS is activated. Solenoid valves function is to increase, decrease or maintain the hydraulic pressure supplied to a wheel cylinder.

DTC DESCRIPTION

The HECU monitors the operation of the valves by checking the drive circuit of the solenoid valves, and then sets this code when the expected drive voltage is detected. For example, the HECU sets the DTC if the electrical feedback signal does not match the actuation signal for the corresponding valve.

DTC DETECTING CONDITION:

MONITOR ACTUATION TEST

1. Connect scan tool to Data Link Connector(DLC)
2. Ignition "ON" & Engine "OFF".
3. Select the "Actuation Test" mode on the scan tool.
4. Inspect operating status of inlet valve with Actuation Test.





5. Does an inlet valve operate normally?

YES
^ Fault is intermittent caused by faulty valve or was repaired and HECU memory was not cleared. Go to the applicable troubleshooting procedure.

NO
^ Go to "Component Inspection" procedure.

COMPONENT INSPECTION

Refer to DTC C2308. C2308

VERIFICATION OF VEHICLE REPAIR

Refer to DTC C1101. C1101