C2380

DTC C2380 ABS VALVE ERROR

COMPONENT LOCATION
Refer to DTC C1604. C1604

GENERAL DESCRIPTION
The ABS HECU is composed of an ECU (Electronic Control Unit) and a 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 unexpected drive voltage is detected. For example, the HECU sets the DTC if an unexpected high drive voltage is detected when the valve relay is switched to OFF. (Or unexpected low voltage is detected when the solenoid valve drive TR is switched to ON).

DTC DETECTING CONDITION





COMPONENT INSPECTION
1. Ignition "OFF".
2. Ignition "ON"
3. Start and drive vehicle in gear and maintain vehicle speed is approximately 7.46 mph or more (7 mph or more)
4. Does warning lamp remain On?

YES
> Substitute with a known-good HECU and check for proper operation. If problem is corrected, replace HECU and then go to "Verification of Vehicle Repair" procedure.

NO
> Fault is intermittent caused by faulty HECU or was repaired and HECU memory was not cleared. Go to the applicable troubleshooting procedure.

VERIFICATION OF VEHICLE REPAIR
After a repair, it is essential to verify that the fault has been corrected.
1. Connect scantool and select "Diagnostic Trouble Codes (DTCs)" mode.
2. Using a scantool, Clear DTC.
3. Operate the vehicle within DTC Detecting Condition in General Information. (Start and drive vehicle in gear and maintain vehicle speed is approximately 7.46 mph or more (7 mph or more))
4. Are any DTCs present?

YES
> Go to the applicable troubleshooting procedure.

NO
> System performing to specification at this time.