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 signal input DTC is not output Parking assist pre support switch
BCTY CAN communication CAN communication condition with main body ECU (multiplex network body ECU) DTC is output Main body ECU (multiplex network body ECU)
EPS TYPE - Brush information for EPS currently selected at individual setting screen DTC is not output -
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 -
STR CAN communication Steering angle sensor signal input DTC is output Spiral with sensor cable sub-assembly
HANDLE CAN communication Steering position signal input DTC is output Main body ECU (multiplex network body ECU)

WIRING DIAGRAM

A01JBWNE01

INSPECTION PROCEDURE

Note


  • When "System initializing" message is displayed on the navigation receiver assembly after the battery terminal 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.

PROCEDURE


  1. CHECK DISPLAY CHECK MODE


    1. A01JC7L

      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
      Any of "CAN", "BCTY", "STR" and "HANDLE" 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)


    1. Disconnect the L65 connector from the parking assist ECU.

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

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      L65-11 (ISSW) - L56-6 (IG) Always Below 1 Ω

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  3. INSPECT PARKING ASSIST PRE SUPPORT SWITCH


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

    2. A01JCYRE01
      Text in Illustration
      *1

      Component without harness connected

      (Parking Assist Pre Support Switch)

      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 pushed in Below 1 Ω
      Parking assist pre support switch not pushed 10 kΩ or higher

    NG

    REPLACE PARKING ASSIST PRE SUPPORT SWITCH Click here

    OK

    REPLACE PARKING ASSIST ECU Click here