Toyota Camry (XV70): Certification ECU Vehicle Information Reading/Writing Process Malfunction (B15F7)
DESCRIPTION
This DTC may be 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:
- Depending on the parts that are replaced during vehicle inspection or maintenance, performing initialization, registration or calibration may be needed. Refer to Precaution for Navigation System.
Click here
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- When replacing the radio and display receiver assembly, always replace it with a new one. If a radio and display receiver assembly which was installed to another vehicle is used, the following may occur:
- A communication malfunction DTC may be stored.
- The radio and display receiver assembly may not operate normally.
- Before replacing the certification ECU (smart key ECU assembly), 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 | .gif) | GO TO CAN COMMUNICATION SYSTEM |
|
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| 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 for Entry Function: Click here for Start Function: Click here |
|
| 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)
|
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