AIR CONDITIONING SYSTEM(for Automatic Air Conditioning System), Diagnostic DTC:E24

DTC Code DTC Name
E24 Water Temperature Sensor Circuit Malfunction

DESCRIPTION

In this circuit, the air conditioning control assembly receivers engine coolant temperature signals from the ECM using the CAN communication system.

DTC No. DTC Detection Condition Trouble Area
E24

  • Ignition switch : ON

  • Engine coolant temperature data is interrupted for 0.5 second.

  • Engine coolant temperature sensor

  • Harness or connector between Engine coolant temperature sensor and ECM

  • ECM

  • air conditioning control assembly

  • CAN communication system

WIRING DIAGRAM

A004JOSE03
*a TWH
*b E.F.I. ENGINE COOLANT TEMPERATURE SENSOR
*c AIR CONDITIONING CONTROL ASSEMBLY
*d CAN Communication Line

CAUTION / NOTICE / HINT

Tech Tips

If there is an open or short in the engine coolant temperature sensor circuit, the ECM stores the DTCs. Troubleshoot the SFI System Click here

PROCEDURE


  1. CHECK FOR DTC (ECM)


    1. Clear the DTCs Click here

    2. Check for DTCs Click here

      OK
      DTC is not output.

    NG

    GO TO ENGINE CONTROL SYSTEM

    OK

  2. CHECK FOR DTCs THROUGH PANEL DIAGNOSIS


    1. Clear the DTCs.

    2. Recheck for DTCs. Based on the DTCs output above, try to force the A/C system to output DTCs by simulating the conditions indicated the DTC.

      Result
      Result Proceed to
      DTC is not output A
      DTC E24 is output B

    A

    END

    B

    REPLACE AIR CONDITIONING CONTROL ASSEMBLY Click here