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:
Inspection
INSPECTION
PROCEDURE
1. INSPECT FUEL INJECTOR ASSEMBLY
(a) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection
Condition
Specified Condition
1 - 2
20°C (68°F)
11.6 ...
Diagnosis System
DIAGNOSIS SYSTEM
1. DESCRIPTION
The ECU stores trouble codes when malfunctions occur.
The diagnostic system allows for reading of the trouble codes from the DLC3.
Use the Techstream to help diagnose and repair the problem.
2. CHECK DLC3
(a) Check the DLC3 (See page ).
3. INSPECT BATTERY VOLT ...
Dtc Check / Clear
DTC CHECK / CLEAR
1. CHECK DTC
(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 / (desired system) / Trouble Codes.
(e) Check the details of the DTC(s) (See page
).
2. CLEAR DTC
(a) Connec ...
