INTELLIGENT PARKING ASSIST SYSTEM "CHK" message(s) are displayed on the SIGNAL CHECK screen.

DESCRIPTION

On the SIGNAL CHECK screen, it is possible to check if the state of signals sent to the parking assist ECU is normal Click here.

Tech Tips


  • On the SIGNAL CHECK screen, "OK" (blue) is displayed for items with a normal inspection result or input state.

  • On the SIGNAL CHECK screen, "CHK" (red) is displayed for items with an abnormal inspection result or input state.

  • Displayed items may differ depending on vehicle specifications.

Item Signal Input Method Detail DTC Output when Abnormal Result is Displayed Signal Receiver
CAN CAN communication CAN communication condition DTC is output -
IPA SW Vehicle wire harness Parking assist pre support switch assembly signal input DTC is not output Parking assist pre support switch assembly
HT SENS Vehicle wire harness Height control sensor signal input DTC is output Rear height control sensor sub-assembly RH
HT INIT - Height control sensor vehicle height difference setting status DTC is output -

WIRING DIAGRAM

A005EZSE03

CAUTION / NOTICE / HINT

Note


  • When the "System initializing" message is displayed on the radio and display receiver assembly*1 or navigation receiver assembly*2 after the auxiliary battery cable has been disconnected, correct the steering angle neutral point Click here.

  • Depending on the parts that are replaced or operations that are performed during vehicle inspection or maintenance, calibration of other systems as well as the intelligent parking assist system may be needed Click here.


  • *1: for Radio and Display Type

  • *2: for Navigation Receiver Type

PROCEDURE


  1. CHECK DISPLAY CHECK MODE


    1. A005EXX

      Check which items display "CHK" (red) on the SIGNAL CHECK screen.

      Result
      Result Proceed to
      "IPA SW" displays "CHK" (red). A
      "HT INIT" displays "CHK" (red). B
      Both "HT SENS" and "HT INIT" display "CHK" (red). C
      "CAN" displays "CHK" (red). C

    B

    ADJUST HEIGHT CONTROL SENSOR VEHICLE HEIGHT DIFFERENCE SETTING Click here

    C

    CHECK DTC OUTPUT Click here

    A

  2. CHECK HARNESS AND CONNECTOR (PARKING ASSIST ECU - PARKING ASSIST PRE SUPPORT SWITCH ASSEMBLY)


    1. Disconnect the L65 parking assist ECU connector.

    2. Disconnect the L56 parking assist pre support switch assembly connector.

    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance
      Tester Connection Condition Specified Condition
      L65-26 (ISSW) - L56-6 (IG) Always Below 1 Ω

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  3. INSPECT PARKING ASSIST PRE SUPPORT SWITCH ASSEMBLY


    1. Remove the parking assist pre support switch assembly Click here.

    2. A005B5BE01
      Text in Illustration
      *a

      Component without harness connected

      (Parking Assist Pre Support Switch Assembly)

      Measure the resistance according to the value(s) in the table below.

      Standard Resistance
      Tester Connection Condition Specified Condition
      3 (E) - 6 (IG) Parking assist pre support switch assembly pushed Below 1 Ω
      Parking assist pre support switch assembly not pushed 10 kΩ or higher

    OK

    REPLACE PARKING ASSIST ECU Click here

    NG

    REPLACE PARKING ASSIST PRE SUPPORT SWITCH ASSEMBLY Click here