PARKING ASSIST MONITOR SYSTEM, Diagnostic DTC:C1612

DTC Code DTC Name
C1612 IG Voltage is Low or High

DESCRIPTION

This DTC is stored if the parking assist ECU judges as a result of its self check that the voltage received by terminal IG is low or high.

DTC Code DTC Detection Condition Trouble Area
C1612

  • IG voltage is low

  • IG voltage is high

  • Harness or connector

  • Parking assist ECU

WIRING DIAGRAM

A00XHRYE01

INSPECTION PROCEDURE

Note


  • When "System initializing" is displayed on the display and navigation module display 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 parking assist monitor system may be needed Click here.

  • Inspect the fuse for circuits related to this system before performing the following inspection procedure.

PROCEDURE


  1. CHECK FOR DTC


    1. Clear the DTCs Click here.

    2. Check for DTCs Click here.

      Result
      Result Proceed to
      DTC C1612 is output A
      No DTC is output B

      Tech Tips

      If the parking assist ECU cannot read the stored information when it is activated, allowing the ECU to store the information again may return the system to normal.


    B

    USE SIMULATION METHOD TO CHECK Click here

    A

  2. CHECK HARNESS AND CONNECTOR (PARKING ASSIST ECU IG VOLTAGE)


    1. A00XIYTE02
      Text in Illustration
      *a

      Front view of wire harness connector

      (to Parking Assist ECU)

      Disconnect the I3 parking assist ECU connector.

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

      Standard Voltage
      Tester Connection Switch Condition Specified Condition
      I3-7 (IG) - I3-3 (GND1) Ignition switch ON 11 to 14 V
      Result
      Result Proceed to
      OK (for LHD) A
      OK (for RHD) B
      NG C

    B

    REPLACE PARKING ASSIST ECU Click here

    C

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    A

    REPLACE PARKING ASSIST ECU Click here