SYSTEM DESCRIPTION 1. GENERAL (a) The heater and blower both have 3 levels controlled by operating the seat heater switch, which is located in the air conditioning control assembly. (b) The on/off state of the heater or blower can be determined by checking if the seat heater switch indicator light is on or off. (c) The blowers of both seats are controlled by the air conditioning amplifier assembly. (d) The seat heaters of both seats are controlled by the seat heater controls, which are located under their respective seats. |
Toyota Tundra Service Manual > Sfi System: Check Mode Procedure
CHECK MODE PROCEDURE HINT: Compared to normal mode, check mode is more sensitive to malfunctions. Therefore, check mode can detect the malfunctions that cannot be detected in normal mode. NOTICE: All the stored DTCs and freeze frame data are cleared if: 1) the ECM is changed from normal mode to chec ...
