ACTIVE TORQUE CONTROL 4WD SYSTEM, Diagnostic DTC:C1298/98

DTC Code DTC Name
C1298/98 Linear Solenoid Circuit

DESCRIPTION

The AWD control ECU receives signals from each sensor to control clutch pressure to distribute torque according to the driving conditions.

DTC No. DTC Detection Condition Trouble Area
C1298/98

When the following continues for 1 second or more:

- With the current of the 0.8 A or more, an open or short in the electromagnetic solenoid circuit occurs.

  • 4WD fuse

  • Wire harness and connector

  • Electromagnetic control coupling

  • AWD control ECU

WIRING DIAGRAM

A01EIWOE10

INSPECTION PROCEDURE

Note

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

Tech Tips

Check the condition of each related circuit connector before troubleshooting Click here.

PROCEDURE


  1. CHECK WIRE HARNESS (AWD CONTROL ECU - BATTERY)


    1. A01ELWME18
      Text in Illustration
      *1

      Rear view of wire harness connector

      (to AWD Control ECU)

      Disconnect the ECU connector.

    2. Measure the voltage of the wire harness side connector.

      Standard Voltage
      Tester Connection Condition Specified Condition
      D38-9 (BSLC) - Body Ground Always 11 to 14 V

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  2. INSPECT ELECTRO MAGNETIC CONTROL COUPLING (ELECTROMAGNETIC SOLENOID)


    1. A01EKHTE02
      Text in Illustration
      *1 Electromagnetic Solenoid

      Remove the coupling connector.

    2. Measure the resistance of the solenoid.

      Standard Resistance
      Tester Connection Condition Specified Condition
      1 (BSF) - 2 (SLC) Always 2.2 to 2.6 Ω
      1 (BSF) - Body ground Always 10 kΩ or higher
      2 (SLC) - Body ground Always 10 kΩ or higher

    NG

    REPLACE ELECTRO MAGNETIC CONTROL COUPLING Click here

    OK

  3. CHECK WIRE HARNESS (ELECTROMAGNETIC CONTROL COUPLING - AWD CONTROL ECU)


    1. A01ELF7E02
      Text in Illustration
      *1

      Front view of wire harness connector

      (to Electromagnetic Solenoid)
      *2

      Rear view of wire harness connector

      (to AWD Control ECU)

      Disconnect the ECU connector.

    2. Measure the resistance of the wire harness side connector.

      Standard Resistance
      Tester Connection Condition Specified Condition
      D38-13 (SLC+) - O1-1 (BSF) Always Below 1 Ω
      D38-32 (SLC-) - O1-2 (SLC) Always Below 1 Ω
      D38-13 (SLC+) - Body ground Always 10 kΩ or higher
      D38-32 (SLC-) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

    REPLACE AWD CONTROL ECU Click here