pontiac Workshop Repair Guides

Pontiac Workshop Service and Repair Manuals

Manifold Air Temperature (MAT) Sensor <--> [Intake Air Temperature Sensor] > < Valve Clearance Specifications|Page 2033
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A/C Signal: Description and Operation

A/C Status Circuit

This signal indicates that the A/C control switch is turned "ON" and the pressure switch is closed. The computer uses this signal to adjust the idle speed,
and on some models engages the A/C compressor clutch.

Manifold Air Temperature (MAT) Sensor <--> [Intake Air Temperature Sensor] > < Valve Clearance Specifications|Page 2033