Toyota Venza manuals

Toyota Venza: Linear Solenoid Circuit (C1298/98)

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


CAUTION / NOTICE / HINT

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 (See page ).


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:

Tester Connection

Condition

Specified Condition

D38-9 (BSLC) - Body Ground

Always

11 to 14 V

Text in Illustration

*1

Rear view of wire harness connector

(to AWD Control ECU)


NG

REPAIR OR REPLACE HARNESS OR CONNECTOR


OK

2.

INSPECT ELECTRO MAGNETIC CONTROL COUPLING (ELECTROMAGNETIC SOLENOID)

(a) Remove the coupling connector.


(b) 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

Text in Illustration

*1

Electromagnetic Solenoid


NG

REPLACE ELECTRO MAGNETIC CONTROL COUPLING


OK

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:

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

Text in Illustration

*1

Front view of wire harness connector

(to Electromagnetic Solenoid)

*2

Rear view of wire harness connector

(to AWD Control ECU)


OK

REPLACE AWD CONTROL ECU


NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

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