PRECAUTION DOOR CONTROL RECEIVER EXPRESSIONS (a) The type of door control receiver used on this model differs according to the specifications of the vehicle. The expressions listed in the table below are used in this section.
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Toyota Tundra Service Manual > Sfi System: Brake Switch "A" / "B" Correlation (P0504)
DESCRIPTION The stop light switch is a duplex system that transmits two signals: STP and ST1-. These two signals are used by the ECM to monitor whether or not the brake system is working properly. If the signals, which indicate the brake pedal is being depressed and released, are detected simultaneo ...
