INTELLIGENT CLEARANCE SONAR SYSTEM, Diagnostic DTC:C1A40

DTC Code DTC Name
C1A40 ENG / EHV Device

DESCRIPTION

When an EFI system malfunction signal sent by the ECM is detected by the clearance warning ECU assembly, DTC C1A40 is stored.

DTC No. Detection Item DTC Detection Condition Trouble Area
C1A40 ENG / EHV Device When the engine switch is on (IG), an EFI system malfunction signal is detected for 1 second or more.

  • EFI system

  • Clearance warning ECU assembly

CAUTION / NOTICE / HINT

Note


  • After turning the engine switch off, waiting time may be required before disconnecting the cable from the negative (-) battery terminal. Therefore make sure to read the disconnecting the cable from the negative (-) battery terminal notices before proceeding with work.

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  • After replacing an ultrasonic sensor or the clearance warning ECU assembly, perform the necessary procedures (adjustment, calibration, initialization or registration).

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PROCEDURE


  1. CHECK DTC OUTPUT


    1. Using the GTS, check for DTCs according to the prompts on the screen.

      Click here

      Tech Tips

      After turning the engine switch from off to on (IG), wait 4 seconds or more before checking for DTCs.


      Body Electrical > IPA/ICS/Clearance Sonar > Trouble Codes

    2. Clear the DTCs according to the screen on the GTS.

      Click here


      Body Electrical > IPA/ICS/Clearance Sonar > Clear DTCs

    3. Recheck for DTCs.

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      Body Electrical > IPA/ICS/Clearance Sonar > Trouble Codes

      Tech Tips


      • DTC C1A40 is stored when a malfunction signal sent from the EFI system is detected.

      • If the malfunctioning part has been repaired or replaced before rechecking for DTCs, DTC C1A40 will not be output again.

      • If DTC C1A40 is output frequently, duplicate the conditions that cause the problem symptoms and perform the inspection again, even though the DTC was not output when rechecking for DTCs.

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      Result
      Result Proceed to
      DTC C1A40 is output A
      DTC C1A40 is not output B

    A

    GO TO EFI SYSTEM for 8AR-FTS: Click here for 2GR-FKS (w/ Canister Pump Module): Click here for 2GR-FKS (w/o Canister Pump Module): Click here

    B

    USE SIMULATION METHOD TO CHECK Click here