Toyota Venza: Cancellation of 4WD Control (C1299/99)

Toyota Venza Service Manual / Mf1a Transfer / 4wd / Awd / Active Torque Control 4wd System / Cancellation of 4WD Control (C1299/99)

DESCRIPTION

If wheel slip continues, differential control will be disabled when the torque-distribution ratio of the differential clutch exceeds the set value and a malfunction in the output of the wheel speed sensors, etc. occurs.
If a difference in diameter between the front and rear wheels is determined, differential control will be disabled.

DTC No.	DTC Detection Condition	Trouble Area
C1299/99	When one of the following conditions is met: - Condition that controls coupling calorific value is predefined value or more. - Vehicle is driven and energy load tire radius difference between front tires and rear tires is more than 3%.	Tire size AWD control ECU

CAUTION / NOTICE / HINT

HINT:

Check the condition of each related circuit connector before troubleshooting (See page ).

PROCEDURE

1.	CHECK TIRE CONDITION

(a) Check the size and condition of all 4 tires (See page ).

HINT:

This DTC is output when tire deformation or a difference in tire size is detected.

OK:

The diameter and air pressure of all 4 tires are the same.

REPLACE TIRE SO THAT ALL 4 TIRES ARE THE SAME IN SIZE

2.	RECONFIRM DTC

(a) Clear the DTC (See page ).

(b) Start the engine.

Result	Proceed to
DTC is output	A
DTC is not output	B

REPLACE AWD CONTROL ECU

CHECK INTERMITTENT PROBLEMS

Malfunction in Deceleration Sensor (C1245/93)

DESCRIPTION If a malfunction in the deceleration sensor circuit occurs, the AWD control ECU will output this DTC. DTC No. DTC Detecting Condition Trouble Area ...

ABS Malfunction (C1296/96)

DESCRIPTION If a malfunction in the speed sensor signal circuit occurs, the AWD control ECU will output this DTC. DTC No. DTC Detecting Condition Trouble Area ...

Other materials about Toyota Venza:

Removal
REMOVAL PROCEDURE 1. PRECAUTION CAUTION: Be sure to read Precaution thoroughly before servicing (See page ). If the front seat side airbag assembly was deployed, replace the front seat side airbag assembly, front seat frame assembly wit ...

Customize Parameters
CUSTOMIZE PARAMETERS 1. CUSTOMIZING FUNCTION WITH TECHSTREAM HINT: The following items can be customized. NOTICE: When the customer requests a change in a function, first make sure that the function can be customized. Be sure to make a not ...

Removal
REMOVAL PROCEDURE 1. REMOVE REAR SEAT HEADREST ASSEMBLY (a) Press the headrest support button and pull up the headrest as shown in the illustration to remove it. 2. REMOVE REAR SEAT INNER TRACK ...