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 > Immobiliser System(w/o Smart Key System): Terminals Of Ecu
TERMINALS OF ECU CHECK TRANSPONDER KEY ECU ASSEMBLY (a) Disconnect the F22 transponder key ECU assembly connector. (b) Measure the resistance and voltage according to the value(s) in the table below. HINT: Measure the values on the wire harness side with the connector disconnected. ...

Toyota CH-R Service Manual > Smart Key System(for Entry Function): Operation Check
OPERATION CHECK CHECK SMART KEY SYSTEM (for Entry Function) OPERATION NOTICE: Make sure that the smart key system (for Entry Function) has not been canceled before performing this inspection. (a) Check the entry unlock function (driver door, front passenger door). (1) Perform a wireless lock ...