C1298

MF1A TRANSFER / 4WD / AWD: ACTIVE TORQUE CONTROL 4WD SYSTEM: C1298/98: Linear Solenoid Circuit

DTC 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.





WIRING DIAGRAM





INSPECTION PROCEDURE
NOTICE: Inspect the fuses for circuits related to this system before performing the following inspection procedure.
HINT: Check the condition of each related circuit connector before troubleshooting Electronic Circuit Inspection Procedure.

PROCEDURE

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




(a) Disconnect the ECU connector.
(b) Measure the voltage of the wire harness side connector.
Standard Voltage:





Text in Illustration





NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- Continue to next step.

2. INSPECT ELECTRO MAGNETIC CONTROL COUPLING (ELECTROMAGNETIC SOLENOID)




(a) Remove the coupling connector.
(b) Measure the resistance of the solenoid.
Standard Resistance:





Text in Illustration





NG -- REPLACE ELECTRO MAGNETIC CONTROL COUPLING
OK -- Continue to next step.

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




(a) Disconnect the ECU connector.
(b) Measure the resistance of the wire harness side connector.
Standard Resistance:





Text in Illustration





NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- REPLACE AWD CONTROL ECU