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Home >> Oldsmobile >> 2004 >> Bravada AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 249 (Engine Control System & Engine Component Tests - 2.2L) >> Modules, Motors, Relays & Solenoids >> Idle Air Control System Diagnosis >> Test Description

Test Description

WARNING: This page is about a different car, the 2003 GMC Sonoma and 2003 Chevrolet S10 Pickup. However, it is still accessible from the selected car via links, so may be relevant.

The numbers below refer to step numbers in diagnostic procedures.

  1. 5  - This test will determine the ability of the PCM and IAC valve control circuits to control the IAC valve.
  2. 7  - This test will determine the ability of the PCM to provide the IAC control valve circuits with a ground. On a normally operating system, the test light should not flash while the IAC counts are incrementing.
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