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.

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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 ...

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Toyota CH-R Service Manual > Smart Key System(for Entry Function): Entry Exterior Alarm and Answer-back Buzzer do not Sound
DESCRIPTION The smart key system (for Entry Function) uses the wireless door lock buzzer to perform various vehicle exterior warnings. When the conditions of each warning are met, the certification ECU (smart key ECU assembly) sends a buzzer activation request signal to the main body ECU (mul ...

Toyota CH-R Service Manual > Airbag System: Short in Selectable Force Limiter Squib RH Circuit (B1940/75-B1943/75)
DESCRIPTION The selectable force limiter squib RH circuit consists of the airbag sensor assembly and front seat outer belt assembly RH. The airbag sensor assembly uses this circuit to deploy the pretensioner when deployment conditions are met. These DTCs are stored when a malfunction is detec ...