Toyota Tacoma (2015-2018) Service Manual: 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 navigation system vehicle customization screen.
HINT:
The Air conditioning amplifier assembly controls the air conditioning system related items that are customizable via the navigation receiver assembly screen.
|
DTC Code |
DTC Detection Condition |
Trouble Area |
|---|---|---|
|
B15F5 |
Air conditioning amplifier assembly vehicle setting processing error. |
|
PROCEDURE
|
1. |
CHECK CAN COMMUNICATION SYSTEM |
(a) Use the Techstream to check if the CAN communication system is functioning
normally (See page .gif)
).
OK:
CAN communication DTCs are not output.
| NG | .gif) |
GO TO CAN COMMUNICATION SYSTEM |
|
.gif)
|
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.
| NG | |
GO TO AIR CONDITIONING SYSTEM |
|
|
3. |
CHECK CUSTOMIZE ITEMS |
(a) Display the "Vehicle Customization" screen.
(b) Make a note of the customizable items for the air conditioning system.
HINT:
These air conditioning system items shown as customizable via the navigation receiver assembly vehicle customization screen can also be changed using the Techstream. In the following steps, the Techstream will be used.
(1) To match-up the items in the navigation receiver assembly with the items
on the Techstream, check the customize parameters list for the air conditioning
system related items that can be customized via the navigation receiver assembly
screen (See page ).
(c) 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 navigation receiver assembly screen.
OK:
The items available for customization via the navigation receiver assembly screen can be customized successfully using the Techstream.
| OK | |
REPLACE NAVIGATION RECEIVER ASSEMBLY |
| NG | |
REPLACE AIR CONDITIONING AMPLIFIER ASSEMBLY |
Speed Signal Malfunction (B15C2)
DESCRIPTION
The navigation receiver assembly receives a vehicle speed signal from the combination
meter assembly and information from the navigation antenna assembly, and then adjusts
the vehicle ...
Main Body ECU Vehicle Information Reading/Writing Process Malfunction (B15F6)
DESCRIPTION
This DTC is stored when items controlled by the main body ECU cannot be customized
via the navigation system vehicle customization screen.
HINT:
The main body ECU controls the ite ...
Other materials:
Noise Occurs
PROCEDURE
1.
NOISE CONDITION
(a) Check from which direction the noise comes (front left or right, or rear
left or right).
OK:
The location of the noise source can be determined.
NG
GO TO STEP 3
OK
...
Installation
INSTALLATION
CAUTION / NOTICE / HINT
CAUTION:
Some of these service operations affect the SRS airbag system. Read the precautionary
notices concerning the SRS airbag system before servicing (See page
).
HINT:
Use the same procedure for both the RH and LH sides.
The procedure des ...
Terminals Of Ecu
TERMINALS OF ECU
1. NAVIGATION RECEIVER ASSEMBLY
Terminal No. (Symbols)
Wiring Color
Terminal Description
Condition
Specified Condition
N19-3 (ACC2) - N24-7 (GND1)*3
Y - W-B
Power source (ACC)
...
