420SEL (126.035) V8-4.2L (116.965) (1986)
Ventilation Switch: Testing and Inspection
With A/C
TESTING OF SWITCH FOR FRESH AIR-RECIRCULATING AIR (STARTING 07/81)
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Connect ohmmeter to terminal 3 and 4.
Switch 26
Nominal value
Push symbol (arrow, top) ON
= 0 to 1 Ohm
Push without symbol
(arrow. bottom) OFF
= Infinite Ohms