Toyota Venza: A/C ECU Vehicle Information Reading/Writing Processor Malfunction (B15F5)

Toyota Venza Service Manual / Audio / Video / Audio And Visual System / A/C ECU Vehicle Information Reading/Writing Processor Malfunction (B15F5)

DESCRIPTION

This DTC is stored when items controlled by the air conditioning amplifier assembly cannot be customized via the audio and visual system vehicle customization screen.

HINT:

The air conditioning amplifier assembly controls the air conditioning system related items that are customizable via the audio and visual system vehicle customization screen.

DTC No.	DTC Detection Condition	Trouble Area
B15F5	Air conditioning amplifier assembly vehicle setting processing malfunction	CAN communication system Air conditioning system Air conditioning amplifier assembly Radio and display receiver assembly

PROCEDURE

1.	CHECK CAN COMMUNICATION SYSTEM

(a) Use the Techstream to check if the CAN communication system is functioning normally (See page ).

OK:

CAN communication DTCs are not output.

GO TO CAN COMMUNICATION SYSTEM

2.	CHECK AIR CONDITIONING SYSTEM

(a) Check if the air conditioning system is malfunctioning (See page ).

HINT:

Customization may not be possible depending on the malfunction in the air conditioning system.

OK:

No malfunctions are present in the air conditioning system.

GO TO AIR CONDITIONING SYSTEM

3.	CHECK CUSTOMIZE ITEMS

(a) Make a note of the customizable items for the air conditioning system.

HINT:

The items shown as customizable via the audio and visual system vehicle customization screen can also be changed using the Techstream. In the following step, the Techstream will be used.

(1) To match-up the items on the audio and visual system vehicle customization screen with the items on the Techstream, check the customize parameters list for the air conditioning system related items that can be customized via the audio and visual system vehicle customization screen (See page ).

(b) Using the Techstream, confirm that it is possible to change the settings of the air conditioning system related customize parameters that are shown as customizable via the audio and visual system vehicle customization screen.

OK:

The items available for customization via the audio and visual system vehicle customization screen can be customized successfully using the Techstream.

REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY

REPLACE AIR CONDITIONING AMPLIFIER ASSEMBLY

Certification ECU Vehicle Information Reading/Writing Process Malfunction (B15F7)

DESCRIPTION This DTC is stored when items controlled by the certification ECU (smart key ECU assembly) cannot be customized via the audio and visual system vehicle customization screen. HINT: T ...

Main Body ECU Vehicle Information Reading/Writing Process Malfunction (B15F6)

DESCRIPTION This DTC is stored when items controlled by the main body ECU (multiplex network body ECU) cannot be customized via the audio and visual system vehicle customization screen. HINT: ...

Other materials about Toyota Venza:

System Description
SYSTEM DESCRIPTION 1. GENERAL (a) Deceleration sensors used for the airbag system are installed on various parts on the vehicle and calculate the deceleration rate of each part during a collision. (b) Depending on the situation, the center airbag sensor a ...

On-vehicle Inspection
ON-VEHICLE INSPECTION PROCEDURE 1. INSPECT COOLING FAN OPERATION AT LOW TEMPERATURES (Below 83°C (181°F)) (a) Turn the ignition switch to ON. (b) Check that the cooling fans stop. If not, check the cooling fan relays and engine coolant temperature senso ...

ECM Communication Stop Mode
DESCRIPTION Detection Item Symptom Trouble Area ECM Communication Stop Mode "Engine" and "ECT" are not displayed on "CAN Bus Check" screen of the Techs ...