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:
VSC Buzzer Circuit
DESCRIPTION
The skid control ECU (brake actuator assembly) is connected to the combination
meter via CAN communication.
The combination meter has a built-in VSC warning buzzer:
Sounds intermittently to inform the driver if the temperature of brake
actuator assembly has increased exce ...
Diagnostic Trouble Code Chart
DIAGNOSTIC TROUBLE CODE CHART
HINT:
If a trouble code is stored during the DTC check, inspect the trouble areas listed
for that code. For details of the code, refer to "See page" below.
Transponder Key ECU Assembly
DTC Code
Detection Item
See page
...
Definition Of Terms
DEFINITION OF TERMS
Term
Definition
Monitor Description
Description of what the ECM monitors and how it detects malfunctions
(monitoring purpose and details).
Related DTCs
A group of diagnostic trouble codes that are ...
