DESCRIPTION
This DTC is stored when items controlled by the main body ECU (multiplex network body ECU) cannot be customized via the navigation system vehicle customization screen.
HINT:
The main body ECU (multiplex network body ECU) controls the items for the following systems that are customizable via the navigation system vehicle customization screen:
|
DTC No. | Detection Item |
DTC Detection Condition | Trouble Area |
|---|---|---|---|
|
B15F6 | Main Body ECU Vehicle Information Reading/Writing Process Malfunction |
Main body ECU (multiplex network body ECU) vehicle setting processing malfunction |
|
CAUTION / NOTICE / HINT
NOTICE:
Click here 
Click here
PROCEDURE
|
1. | CHECK CAN COMMUNICATION SYSTEM |
(a) Use the Techstream to check if the CAN communication system is functioning normally.
Click here
OK:
CAN communication DTCs are not output.
| NG |  | GO TO CAN COMMUNICATION SYSTEM |
|
| 2. |
CHECK POWER DOOR LOCK CONTROL SYSTEM |
(a) Check if the power door lock control system is malfunctioning.
Click here
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.
Click here
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 (for Interior) |
(a) Check if the lighting system (for Interior) is malfunctioning.
Click here
HINT:
Customization may not be possible depending on the malfunction in the lighting system (for Interior).
OK:
No malfunctions are present in the lighting system (for Interior).
| NG | | GO TO LIGHTING SYSTEM (for Interior) |
|
| 5. |
CHECK LIGHTING SYSTEM (for Exterior) |
(a) Check if the lighting system (for Exterior) is malfunctioning.
w/ Cornering Light: Click here
w/o Cornering Light: Click here
HINT:
Customization may not be possible depending on the malfunction in the lighting system (for Exterior).
OK:
No malfunctions are present in the lighting system (for Exterior).
| NG | | GO TO LIGHTING SYSTEM (for Exterior) |
|
| 6. |
CHECK CUSTOMIZE ITEMS |
(a) Make a note of the customizable items for each main body ECU (multiplex network body ECU) related system.
HINT:
The items shown as customizable via the navigation system 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 on the navigation system vehicle customization screen 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 system vehicle customization screen.
Click here
(2) To match-up the items on the navigation system vehicle customization screen 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 system vehicle customization screen.
Click here
(3) To match-up the items on the navigation system vehicle customization screen with the items on the Techstream, check the customize parameters list for the lighting system (for Interior) related items that can be customized via the navigation system vehicle customization screen.
Click here
(4) To match-up the items on the navigation system vehicle customization screen with the items on the Techstream, check the customize parameters list for the lighting system (for Exterior) related items that can be customized via the navigation system vehicle customization screen.
w/ Cornering Light: Click here
w/o Cornering Light: Click here
(b) Using the Techstream, check that it is possible to change the settings of the customize parameters that are available for customization via the navigation system vehicle customization screen.
OK:
The items available for customization via the navigation system vehicle customization screen can be customized successfully using the Techstream.
| OK | | REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY |
| NG | | REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) |
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 certification ECU (smart key ECU assembly) controls the smart key system related items that are customizable via the navigation system vehicle customization screen.
|
DTC No. | Detection Item |
DTC Detection Condition | Trouble Area |
|---|---|---|---|
|
B15F7 | Certification ECU Vehicle Information Reading/Writing Process Malfunction |
Certification ECU (smart key ECU assembly) vehicle setting processing malfunction |
|
CAUTION / NOTICE / HINT
NOTICE:
Click here 
Click here
PROCEDURE
|
1. | CHECK CAN COMMUNICATION SYSTEM |
(a) Use the Techstream to check if the CAN communication system is functioning normally.
Click here
OK:
CAN communication DTCs are not output.
| NG |  | GO TO CAN COMMUNICATION SYSTEM |
|
| 2. |
CHECK SMART KEY SYSTEM |
(a) Check if the smart key system is malfunctioning.
for Entry Function: Click here
for Start Function: Click here
HINT:
Customization may not be possible depending on the malfunction in the smart key system.
OK:
No malfunctions are present in the smart key system.
| NG | | GO TO SMART KEY SYSTEM |
|
| 3. |
CHECK CUSTOMIZE ITEMS |
(a) Make a note of the customizable items for the certification ECU related system.
HINT:
The items shown as customizable via the navigation 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 navigation system vehicle customization screen with the items on the Techstream, check the customize parameters list for the smart key system related items that can be customized via the navigation system vehicle customization screen.
for Entry Function: Click here
for Start Function: Click here
(b) Using the Techstream, check that it is possible to change the settings of the customize parameters that are available for customization via the navigation system vehicle customization screen.
OK:
The items available for customization via the navigation system vehicle customization screen can be customized successfully using the Techstream.
| OK | | REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY |
| NG | | REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) |
DESCRIPTION
This DTC is stored when items controlled by the main body ECU (multiplex network body ECU) cannot be customized via the navigation system vehicle customization screen.
HINT:
The main body ECU (multiplex network body ECU) controls the front power seat control system (w/ Memory) related items that are customizable via the radio and display receiver assembly screen.
|
DTC No. | Detection Item |
DTC Detection Condition | Trouble Area |
|---|---|---|---|
|
B15F8 | D-Seat ECU Vehicle Information Reading/Writing Process Malfunction |
Main body ECU (multiplex network body ECU) vehicle setting processing malfunction |
|
CAUTION / NOTICE / HINT
NOTICE:
Click here 
Click here
PROCEDURE
|
1. | CHECK CAN COMMUNICATION SYSTEM |
(a) Use the Techstream to check if the CAN communication system is functioning normally.
Click here
OK:
CAN communication DTCs are not output.
| NG |  | GO TO CAN COMMUNICATION SYSTEM |
|
| 2. |
CHECK FRONT POWER SEAT CONTROL SYSTEM (w/ Memory) |
(a) Check if the front power seat control system (w/ Memory) is malfunctioning.
Click here
HINT:
Customization may not be possible depending on the malfunction in the front power seat control system (w/ Memory).
OK:
No malfunctions are present in the front power seat control system (w/ Memory).
| NG | | GO TO FRONT POWER SEAT CONTROL SYSTEM (w/ Memory) |
|
| 3. |
CHECK CUSTOMIZE ITEMS |
(a) Display the "Vehicle Customization" screen.
(b) Make a note of the customizable items for each main body ECU (multiplex network body ECU).
HINT:
The items shown as customizable via the navigation 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 radio and display receiver assembly with the items on the Techstream, check the customize parameters list for the front power seat control system (w/ Memory) related items that can be customized via the radio and display receiver assembly screen.
Click here
(c) Using the Techstream, check that it is possible to change the settings of the customize parameters that are available for customization via the radio and display receiver assembly screen.
OK:
The items available for customization via the radio and display receiver assembly screen can be customized successfully using the Techstream.
| OK | | REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY |
| NG | | REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) |
Toyota Avalon (XX50) 2019-2022 Service & Repair Manual > A25a-fxs Engine Control: Engine Coolant Temperature Sensor
Components COMPONENTS ILLUSTRATION *1 COOL AIR INTAKE DUCT SEAL *2 ENGINE COOLANT TEMPERATURE SENSOR *3 INLET AIR CLEANER ASSEMBLY *4 NO. 2 ENGINE COOLANT TEMPERATURE SENSOR N*m (kgf*cm, ft.*lbf): Specified torque ● Non-reusable part Inspection INSPECTION CAUTION / NOTICE / HINT CAUTION: Do not pu ...
