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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1865 (Engine Controls And Fuel - 3.5L (L66) - DTC P0506 To DTC P2199) >> DTC P2199 >> Test Description

Test Description

WARNING: This page is about a different car, the 2007 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.

The numbers below refer to the step numbers on the diagnostic table.

  1. 2:  This step determines if a condition is present.
  2. 7:  After replacing the PCM, a new minimum throttle position and idle speed must also be established.
DTC P2199

Step Action Values Yes No
Schematic Reference: Engine Controls Schematics
Connector End View Reference: Powertrain Control Module Connector End Views or Engine Controls Connector End Views
1 Did you perform the Diagnostic System Check - Vehicle? - Go to Step 2  Go to Diagnostic System Check - Vehicle
2 
  1. Turn ON the ignition, with the engine OFF.
    IMPORTANT: The intake air temperature (IAT) sensors should be cooled to ambient temperature.
  2. Observe the IAT sensor 1 and the IAT sensor 2 parameters with a scan tool.
Does the scan tool indicate that the IAT sensor 1 and IAT sensor 2 are within the specified value of each other?		 5°C (9°F) Go to Step 3  Go to Step 4 
3
  1. Observe the Freeze Frame and/or the Failure Records data for this DTC.
  2. Turn OFF the ignition for 30 seconds.
  3. Start the engine.
  4. Operate the vehicle within the Conditions for Running the DTC. You may also operate the vehicle within the conditions that you observed from the Freeze Frame and/or the Failure Records data.
Does the DTC fail this ignition cycle?		 - Go to Step 4  Go to Intermittent Conditions
4
  1. Turn OFF the ignition.
  2. Disconnect the electrical connector of the IAT sensor 1 and the IAT sensor 2.
  3. Measure the resistance of the IAT sensors and compare to the Temperature vs Resistance table. Refer to Temperature Versus Resistance - Intake Air Temperature Sensor .
Did you locate an out of range sensor?		 - Go to Step 6  Go to Step 5 
5 Test the IAT sensor circuits for high resistance. Refer to Circuit Testing .
Did you find and correct the condition?		 - Go to Step 8  Go to Step 7 
6 Replace the IAT sensor. Refer to Intake Air Temperature Sensor 1 Replacement or Intake Air Temperature Sensor 2 Replacement .
Did you complete the replacement?		 - Go to Step 8  -
7 
  1. Replace the powertrain control module (PCM). Refer to Control Module References for replacement, setup, and programming.
  2. Perform the idle learn procedure. Refer to Idle Learn .
Did you complete the replacement?		 - Go to Step 8  -
8
  1. Use the scan tool in order to clear the DTCs.
  2. Turn the ignition OFF for 30 seconds.
  3. Start the engine.
  4. Operate the vehicle within the Conditions for Running the DTC.
Does the DTC run and pass?		 - Go to Step 9  Go to Step 2 
9 With a scan tool, select Capture Info in order to observe the stored information.
Does the scan tool display any DTCs that you have not diagnosed?		 - Go to Diagnostic Trouble Code (DTC) List - Vehicle System OK
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