CHECK MODE PROCEDURE 1. LIST OF OPERATION METHODS By operating each of the A/C control switches as shown in the diagram below, it is possible to enter the diagnostic check mode.  |
Toyota Tundra Service Manual > Trailer Brake Control System: Stop Light Control Relay Malfunction (C1380)
DESCRIPTION The skid control ECU (brake actuator assembly) sends a stop light operation request signal to the stop light control relay. If the skid control ECU (brake actuator assembly) detects a malfunction in the stop light control relay circuit, the trailer brake control ECU (brake control with b ...
