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Home >> Mitsubishi >> 1990 >> Montero Base, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 12 (A/C-Heater System - Manual) >> Testing >> A/C Switch
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A/C Switch

WARNING: This page is about a different car, the 1991 Plymouth Colt Vista, 1991 Mitsubishi Pickup, 1991 Mitsubishi Montero, 1991 Dodge Ram 50, and 1991 Dodge Colt Vista. However, it is still accessible from the selected car via links, so may be relevant.
  1. Disconnect A/C switch harness connector. Using appropriate wiring diagram as a guide, jumper appropriate terminals of A/C switch wiring harness connector. See Fig 1 .
  2. Turn blower on and momentarily turn ignition on without starting engine. Listen for compressor clutch engagement. If compressor clutch does not engage, check fuse and other components wired in series with compressor clutch.
Fig 1: A/C Switch Connector ID
G90B04112Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
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