Toyota Venza Quiz
Mf1a Transfer / 4wd / Awd

Control Module Communication Bus OFF (U0073/86,U0100/85,U0129/83)

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
2steps
~12min
1/5difficulty
Done 0 of 2
DESCRIPTION
  • The AWD control ECU inputs the signals sent from the ECM and skid control ECU via the CAN communication system.
  • When DTCs indicating a CAN communication system malfunction are output, repair the CAN communication system before repairing each corresponding sensor.

DTC No.

DTC Detection Condition

Trouble Area

U0073/86
  1. When the following continues for 5 seconds or more:

    - Signals from the AWD control ECU are not received.

  2. When the following occurs 10 times consecutively:

    - A communication malfunction (bus off) occurs one or more times within 0.1 seconds.

CAN communication system

U0100/85
  1. When both of the following continue for 2 seconds or more:

    - The voltage of the IG1 terminal is 10 V or more.

    - At a vehicle speed of 60 km/h or more, communication with the ECM cannot be performed.

CAN communication system

U0129/83
  1. When the following continues for 3 seconds or more:

    - The voltage of the IG1 terminal is 10 V or more.

    - Communication with the skid control ECU cannot be performed.

CAN communication system
PROCEDURE

  1. CHECK FOR DTC

(a) Check for DTCs (See page ).


(b) Record the output DTCs (active torque control 4WD system).

HINT:

When DTCs indicating a CAN communication system malfunction are output, repair the CAN communication system before repairing each corresponding sensor.


NEXT

GO TO CAN COMMUNICATION SYSTEM

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