DTC 98

UF1AE TRANSFER: FOUR WHEEL DRIVE CONTROL SYSTEM: C1298/98: Linear Solenoid Circuit
C1298/98 - Linear Solenoid Circuit

DESCRIPTION

The 4WD control ECU receives signals from each sensor to control clutch fluid pressure to limit the center differential operation, distributing torque according to the driving conditions.

WIRING DIAGRAM

INSPECTION PROCEDURE

HINT
Check the condition of each related circuit connector before troubleshooting Electronic Circuit Inspection Procedure.

PROCEDURE

1. INSPECT TRANSFER CONTROL SOLENOID ASSEMBLY

(a) Disconnect the transfer transmission wire connector.

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

Standard resistance:

NG -- INSPECT TRANSFER CONTROL SOLENOID ASSEMBLY
OK -- Continue to next step.

2. CHECK HARNESS AND CONNECTOR (TRANSFER TRANSMISSION WIRE TO 4WD CONTROL ECU)

(a) Disconnect the 4WD control ECU connector.

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

Standard resistance:

C -- REPAIR OR REPLACE HARNESS OR CONNECTOR (SLC+, SLC- CIRCUIT)

B -- PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE

A -- REPLACE 4WD CONTROL ECU

3. INSPECT TRANSFER CONTROL SOLENOID ASSEMBLY

(a) Remove the transfer control solenoid assembly .

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

Standard resistance:

NG -- REPLACE TRANSFER CONTROL SOLENOID ASSEMBLY

OK -- REPLACE TRANSFER TRANSMISSION WIRE