Toyota CH-R Service Manual: Lost Communication with Power Source Control (B278C)

NOTICE:

• When using the Techstream with the ignition switch off, connect the Techstream to the DLC3 and turn a courtesy light switch on and off at intervals of 1.5 seconds or less until communication between the Techstream and the vehicle begins. Then select the vehicle type under manual mode and enter the following menus: Body Electrical / Smart Key. While using the Techstream, periodically turn a courtesy light switch on and off at intervals of 1.5 seconds or less to maintain communication between the Techstream and the vehicle.
• If the certification ECU (smart key ECU assembly) or ID code box (immobiliser code ECU) is replaced, refer to Registration.

  Click here

Rear Door LH ECU Communication Stop (B2324)

DESCRIPTION This DTC is stored when LIN communication between the power window regulator motor assembly (for rear LH door) and main body ECU (multiplex network body ECU) stops for 10 seconds or m ...

Front Passenger Side Door ECU Communication Stop (B2322)

DESCRIPTION This DTC is stored when LIN communication between the power window regulator motor assembly (for front passenger door) and main body ECU (multiplex network body ECU) stops for 10 seco ...

Other materials:

Toyota CH-R Service Manual > Power Door Lock Control System: Improper Operation
DESCRIPTION In cases where doors locked (lock) by themselves even though a door lock operation was not performed, possible causes include vehicle-side malfunction, environmental malfunction, or operation by the customer (including other passengers in the vehicle). By using the operation histo ...

Toyota CH-R Service Manual > Steering Pad: On-vehicle Inspection
ON-VEHICLE INSPECTION CAUTION / NOTICE / HINT CAUTION: Be sure to correctly follow the removal and installation procedures for the horn button assembly. PROCEDURE 1. INSPECT HORN BUTTON ASSEMBLY (for Vehicle not Involved in Collision) (a) Perform a diagnostic system check. Click here (b) ...