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Home >> Toyota >> 2019 >> RAV4 LE, AWD >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Anti-Theft Systems >> Smart Key System (For Start, Except HV) - Diagnostic Codes (2 Of 2) & Symptom Tests (1 Of 2) >> SMART KEY SYSTEM (for Start Function, Gasoline Model) >> DTC U0100: Lost Communication with ECM / PCM; DTC U0140: Lost Communication with Body Control Module; DTC U0142: Lost Communication with Main Body ECU; DTC U0155: Lost Communication with Combination Meter; DTC U0230: Lost Communication with Rear Gate Module; DTC U1103: Lost Communication with Stop and Start Control Module; DTC U1117: Lost Communication with Accessory Gateway [11/2018 - ] >> Caution / Notice / Hint
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Caution / Notice / Hint

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

HINT: 

When the cable is disconnected and reconnected to the negative (-) battery terminal, the power source mode returns to the state it was in before the cable was disconnected.

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