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Toyota Tundra Service Manual > Air Conditioning System(for Manual Air Conditioning System): Precaution
PRECAUTION 1. PRECAUTIONS WHEN USING TECHSTREAM (a) When using the Techstream with the ignition switch OFF to troubleshoot the CAN or LIN communication line: Connect the Techstream to the vehicle, and turn a courtesy light switch on and off at 1.5 second intervals until communication between the Tec ...
