Toyota Venza Quiz
Mf1a Transfer / 4wd / Awd

Linear Solenoid Circuit (C1298/98)

In this manual: Mf1a Transfer / 4wd / Awd
Introduction — 15Maintenance — 8Audio / Video — 102Garage Door Opener — 8Navigation / Multi Info Display — 81Park Assist / Monitoring — 50Brake (front) — 7Brake (rear) — 7Brake Control / Dynamic Control Systems — 79Brake System (other) — 28Parking Brake — 22Axle And Differential — 44Drive Shaft / Propeller Shaft — 24Mf1a Transfer / 4wd / Awd — 46U660e Automatic Transmission / Transaxle — 1241ar-fe Cooling — 311ar-fe Emission Control — 101ar-fe Engine Control — 1331ar-fe Engine Mechanical — 441ar-fe Fuel — 311ar-fe Intake / Exhaust — 211ar-fe Lubrication — 111ar-fe Starting — 16Cruise Control — 241ar-fe Battery / Charging — 162gr-fe Battery / Charging — 17Networking — 67Power Distribution — 8Power Assist Systems — 34Steering Column — 37Steering Gear / Linkage — 29Alignment / Handling Diagnosis — 4Front Suspension — 39Rear Suspension — 35Tire / Wheel — 4Tire Pressure Monitoring — 35Door / Hatch — 83Exterior Panels / Trim — 56Horn — 4Lighting (ext) — 89Mirror (ext) — 36Sliding Roof / Convertible — 26Window / Glass — 87Wiper / Washer — 30Door Lock — 85Heating / Air Conditioning — 82Interior Panels / Trim — 20Lighting (int) — 37Meter / Gauge / Display — 41Mirror (int) — 9Power Outlets (int) — 10Seat — 84Seat Belt — 43Supplemental Restraint Systems — 131Theft Deterrent / Keyless Entry — 155
~2min read
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

  1. 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

  1. 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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