INTELLIGENT PARKING ASSIST SYSTEM, Diagnostic DTC:C1628

DTC Code DTC Name
C1628 Vehicle Height Sensor Failure

DESCRIPTION

The rear height control sensor sub-assembly RH is connected to the parking assist ECU. This DTC is stored when the parking assist ECU judges that vehicle height sensor signal received from the rear height control sensor sub-assembly RH is abnormal or has not changed (rear height control sensor sub-assembly RH seized).

DTC No. DTC Detection Condition Trouble Area
C1628

  • Height control sensor signal is abnormal

  • Height control sensor seized

  • Harness or connector

  • Rear height control sensor sub-assembly RH

  • Parking assist ECU

WIRING DIAGRAM

A01JB1JE02

INSPECTION PROCEDURE

Note


  • When the "System initializing" message is displayed on the navigation ECU sub-assembly 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.

PROCEDURE


  1. CHECK VEHICLE SPECIFICATION


    1. Check vehicle specification.

      Result
      Result Proceed to
      for LED Headlight A
      for Halogen Headlight B

    B

    CHECK HARNESS AND CONNECTOR (PARKING ASSIST ECU - REAR HEIGHT CONTROL SENSOR SUB-ASSEMBLY) Click here

    A

  2. CHECK HARNESS AND CONNECTOR (PARKING ASSIST ECU - REAR HEIGHT CONTROL SENSOR SUB-ASSEMBLY)


    1. Disconnect the L151 connector from the parking assist ECU.

    2. Disconnect the S3 connector from the rear height control sensor sub-assembly RH.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      L151-27 (HBL+) - Body ground Always 10 kΩ or higher
      L151-9 (HI1) - Body ground Always 10 kΩ or higher
      L151-31 (HG1) - Body ground Always 10 kΩ or higher
      L151-27 (HBL+) - S3-3 (SHB) Always Below 1 Ω
      L151-9 (HI1) - S3-2 (SHRR) Always Below 1 Ω
      L151-31 (HG1) - S3-1 (SHG) Always Below 1 Ω
      Result
      Result Proceed to
      NG A
      OK B

    B

    CHECK REAR HEIGHT CONTROL SENSOR SUB-ASSEMBLY RH Click here

    A

    REPAIR OR REPLACE HARNESS OR CONNECTOR

  3. CHECK HARNESS AND CONNECTOR (PARKING ASSIST ECU - REAR HEIGHT CONTROL SENSOR SUB-ASSEMBLY)


    1. Disconnect the L151 connector from the parking assist ECU.

    2. Disconnect the S3 connector from the rear height control sensor sub-assembly RH.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      L151-30 (HBE+) - Body ground Always 10 kΩ or higher
      L151-9 (HI1) - Body ground Always 10 kΩ or higher
      L151-31 (HG1) - Body ground Always 10 kΩ or higher
      L151-30 (HBE+) - S3-3 (SHB) Always Below 1 Ω
      L151-9 (HI1) - S3-2 (SHRR) Always Below 1 Ω
      L151-31 (HG1) - S3-1 (SHG) Always Below 1 Ω

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  4. CHECK REAR HEIGHT CONTROL SENSOR SUB-ASSEMBLY RH


    1. Reconnect the L151 connector to the parking assist ECU.

    2. Disconnect the S3 connector from the rear height control sensor sub-assembly RH.

    3. A01JD6UE01
      Text in Illustration
      *a

      Front view of wire harness connector

      (to Rear Height Control Sensor Sub-assembly RH)

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

      Standard Voltage
      Tester Connection Condition Specified Condition
      S3-3 (SHB) - S3-1 (SHG) Power switch on (IG) 4.75 to 5.25 V

    NG

    REPLACE PARKING ASSIST ECU Click here

    OK

    REPLACE REAR HEIGHT CONTROL SENSOR SUB-ASSEMBLY RH Click here