Lexus ES: 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:
The main body ECU (multiplex network body ECU) controls the items for the following systems that are customizable via the multi-display assembly screen:
- Power door lock control system
- Wireless door lock control system
- Lighting system (for Interior)
- Lighting system (for Exterior)
| 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:
-
Depending on the parts that are replaced during vehicle inspection or maintenance, performing initialization, registration or calibration may be needed. Refer to Precaution for Audio and Visual System.
Click here
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-
When replacing the radio receiver assembly, always replace it with a new one. If a radio receiver assembly which was installed to another vehicle is used, the following may occur:
- A communication malfunction DTC may be stored.
- The radio receiver assembly may not operate normally.
-
Before replacing the main body ECU (multiplex network body ECU), refer to Registration.
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.
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) Display the "Vehicle Customization" screen.
(b) 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 audio and visual 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 multi-display 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 multi-display assembly screen.
Click here
(2) To match-up the items on the multi-display 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 multi-display assembly screen.
Click here
(3) To match-up the items on the multi-display assembly 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 multi-display assembly screen.
Click here
(4) To match-up the items on the multi-display assembly 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 multi-display 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 multi-display assembly screen.
OK:
The items available for customization via the multi-display assembly screen can be customized successfully using the Techstream.
| OK | | REPLACE RADIO RECEIVER ASSEMBLY |
| NG | | REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) |
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