a. Turn the ignition switch to on while pressing the A/C control AUTO switch and R/F SW simultaneously.
2004 ACCESSORIES & EQUIPMENT Air Conditioning System - Diagnostics - Sequoia
- Fig. 5: Identifying Auto S/W & R/F Switch Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
b. Check that all the indicators light up and go off at 1 second intervals 4 times in succession.
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