Toyota CH-R Service Manual: ID BOX EEPROM Malfunction (B2790)

• *: Only output while a malfunction is present.

NOTICE:

• When using the Techstream with the engine 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.
• Before replacing the certification ECU (smart key ECU assembly) or ID code box (immobiliser code ECU), refer to Registration.

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• After performing repairs, confirm that no DTCs are output by performing "DTC Output Confirmation Operation."

Engine Starter Communication Malfunction (B2779)

Short to GND in Immobiliser System Power Source Circuit (B278A)

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