Toyota CH-R Service Manual: Certification ECU Vehicle Information Reading/Writing Process Malfunction (B15F7)

Toyota CH-R Service Manual / Navigation / Multi Info Display / Navigation System / Certification ECU Vehicle Information Reading/Writing Process Malfunction (B15F7)

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
  • CAN communication system
  • Smart key system
  • Certification ECU (smart key ECU assembly)
  • Radio and display receiver assembly

CAUTION / NOTICE / HINT

NOTICE:

  • 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.

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

OK

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.

Result

Proceed to

OK

A

NG (for Entry Function)

B

NG (for Start Function)

C
B

GO TO SMART KEY SYSTEM

C

GO TO SMART KEY SYSTEM

A

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)

    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 navigation system vehicle customization screen. HINT: The main ...

    XM Tuner Antenna Disconnected (B15FE,B15FF)
    DESCRIPTION These DTCs are stored when a malfunction occurs in the roof antenna assembly which is connected to the radio and display receiver assembly. DTC No. Detection Item ...

    Other materials:

    Toyota CH-R Service Manual > Outer Rear View Mirror: Components
    COMPONENTS ILLUSTRATION *A for Driver Side *B for Front Passenger Side *C for TMMT Made *D for TMC Made *1 FRONT DOOR BELT SEAL *2 FRONT DOOR GLASS INNE ...

    Toyota CH-R Owners Manual > Adjusting the steering wheel and mirrors: Outside rear view mirrors
    Adjustment procedure 1. To select a mirror to adjust, turn the switch. Left Right 2. To adjust the mirror, operate the switch. Up Right Down Left Folding and extending the mirrors Manual type Push the mirror back in the direction of the rear of the vehicle. Powe ...

    Toyota C-HR (AX20) 2023-2026 Owner's Manual

    Toyota CH-R Owners Manual

    Toyota CH-R Service Manual

    © 2017-2026 Copyright www.tochr.net
    0.0118