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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 274 (Engine Controls - Self-Diagnostics - 2.2L) >> Diagnostic Tests >> DTC P1514: Throttle Body Performance >> Test Description

Test Description

WARNING: This page is about a different car, the 2003 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.

The numbers below refer to the steps number in the diagnostic procedures.

  1. 5 -  This step will determine if the Manifold Absolute Pressure (MAP) sensor voltage is within the proper range at idle.
  2. 6 -  This step will determine if the MAP sensor responds properly to the change in manifold pressure.
  3. 7 -  A throttle blade that sticks or binds may set this code. Opening the throttle will indicate problems such as these.
  4. 9 -  When ECM detects a condition within the Electronic Throttle Control (ETC) system, other DTCs may set due to the many redundant tests run continuously on this system. Locating and repairing one individual condition may correct more than one DTC. Keep this in mind when reviewing captured DTC info.
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