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 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 |
|
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) 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.
| OK | |
REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY |
| NG | |
REPLACE AIR CONDITIONING AMPLIFIER ASSEMBLY |
Speaker Output Short (B15C3)
DESCRIPTION
This DTC is stored when a malfunction occurs in the speakers.
DTC No.
DTC Detection Condition
Trouble Area
B15C3
A short is d ...
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:
Tire Pressure Monitor ECU Communication Stop Mode
DESCRIPTION
Detection Item
Symptom
Trouble Area
Tire Pressure Monitor ECU Communication Stop Mode
Either condition is met:
Communication stop for "Tire Pressure2" is indicated on the
"Communication Bus C ...
How To Proceed With Troubleshooting
CAUTION / NOTICE / HINT
HINT:
*: Use the Techstream.
PROCEDURE
1.
VEHICLE BROUGHT TO WORKSHOP
NEXT
2.
CUSTOMER PROBLEM ANALYSIS CHECK
HINT:
In troubleshooti ...
Diagnostic Trouble Code Chart
DIAGNOSTIC TROUBLE CODE CHART
HINT:
If a trouble code is displayed during the DTC check, inspect the trouble area
for that code. For details of each code, refer to the relevant page listed under
respective "See page" in the DTC chart.
Tire Pressure Warning ECU and Receiver
...
