Toyota Tacoma 2015-2018 Service Manual: 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 items for the following systems that are customizable via the navigation receiver assembly screen:- Power door lock control system
- Wireless door lock control system
- Lighting system
|
DTC Code |
DTC Detection Condition |
Trouble Area |
|---|---|---|
|
B15F6 |
Main body ECU 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 POWER DOOR LOCK CONTROL SYSTEM |
(a) Check if the power door lock control system is malfunctioning (See page
).
HINT:
Customization may not be possible depending on the malfunction in the power door lock control system.
OK:
No malfunctions are present in the power door lock control system.
| NG | |
GO TO POWER DOOR LOCK CONTROL SYSTEM |
|
|
3. |
CHECK WIRELESS DOOR LOCK CONTROL SYSTEM |
(a) Check if the wireless door lock control system is malfunctioning (See page
).
HINT:
Customization may not be possible depending on the malfunction in the wireless door lock control system.
OK:
No malfunctions are present in the wireless door lock control system.
| NG | |
GO TO WIRELESS DOOR LOCK CONTROL SYSTEM |
|
|
4. |
CHECK LIGHTING SYSTEM |
(a) Check if the lighting system is malfunctioning (See page
).
HINT:
Customization may not be possible depending on the malfunction in the lighting system.
OK:
No malfunctions are present in the lighting system.
| NG | |
GO TO LIGHTING SYSTEM |
|
|
5. |
CHECK CUSTOMIZE ITEMS |
(a) Display the "Vehicle Customization" screen.
(b) Make a note of the customizable items for each main body ECU (driver side junction block assembly) related system.
HINT:
These items shown as customizable via the navigation receiver assembly vehicle customization screen can also be changed using the Techstream. In a following step, 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 power door lock control
system related items that can be customized via the navigation receiver assembly
screen (See page ).
(2) To match-up the items in the navigation receiver assembly with the items
on the Techstream, check the customize parameters list for the wireless door lock
control system related items that can be customized via the navigation receiver
assembly screen (See page ).
(3) To match-up the items in the navigation receiver assembly with the items
on the Techstream, check the customize parameters list for the lighting 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 customize parameters that are available for customization 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 MAIN BODY ECU |
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 conditio ...
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 navigation system vehicle customization
screen.
HINT:
The cer ...
Other materials:
Accumulator Low Pressure (C1452)
DESCRIPTION
DTC Code
DTC Detection Condition
Trouble Area
C1452
After braking, the fluid pressure inside the accumulator is below the
threshold within 3.2 seconds.
Hydraulic circuit
Accumulator pressure sen ...
System Diagram
SYSTEM DIAGRAM
Communication Table
Transmitting ECU
Receiving ECU
Signal
Communication Method
Power Window Regulator Master Switch Assembly
Power Window Regulator Motor Assembly (for Driver Door)
Power Window ...
Dtc Check / Clear
DTC CHECK / CLEAR
1. DTC CHECK USING TECHSTREAM
(a) Connect the Techstream to the DLC3.
(b) Turn the ignition switch to ON.
(c) Turn the Techstream on.
(d) Enter the following menus: Body Electrical / Air Conditioner / Trouble Codes.
(e) Check for DTCs.
2. DTC CLEAR USING TECHSTREAM
(a) Conn ...