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Home >> GMC >> 2006 >> Sierra 1500 HD, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 133 (Engine Controls Self-Diagnostics - 4.3L) >> Diagnostic Tests >> DTC P0106: Map System Performance >> Test Description

Test Description

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

The numbers below refer to the step numbers in the diagnostic procedure.

  1. 5

    This step tests the MAP sensor's ability to correctly indicate barometric pressure.

  2. 7

    This step tests the MAP sensor's ability to respond to an increase in engine vacuum.

  3. 9

    This step tests for a proper MAP sensor pressure with an applied vacuum.

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