DESCRIPTION This DTC is stored when correct destination information is not sent from the main body ECU (multiplex network body ECU) and destination information cannot be confirmed after a blind spot monitor sensor has been replaced.
CAUTION / NOTICE / HINT NOTICE:
PROCEDURE
(a) Check for CAN communication system DTCs. Click here OK: CAN communication system DTCs are not output.
(a) Replace the main body ECU (multiplex network body ECU) with a new one. Click here (b) Clear the DTCs. Click here (c) Recheck for DTCs and check if the same DTC is output again. Click here
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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 ...
