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Home >> Chevrolet >> 2006 >> HHR LS, Automatic >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - 2.2L - DTC P0449 To P1516 >> DTC P1107 >> Test Description

Test Description

The number below refers to the step number on the diagnostic table.

  1. 3:  This step attempts to pinpoint the location of the intermittent fault.
DTC P1107

Step Action Yes No
Schematic Reference:  Engine Controls Schematics 
Connector End View Reference: Engine Controls Connector End Views or Engine Control Module (ECM) Connector End Views
1 Did you perform the Diagnostic System Check - Vehicle? Go to Step 2  Go to Diagnostic System Check - Vehicle
2
  1. Start the engine.
  2. Monitor the Diagnostic Trouble Code (DTC) Information with the scan tool.
Is DTC P0107, P0641, P0651 also set?		 Go to Diagnostic Trouble Code (DTC) List - Vehicle Go to Step 3 
3 
  1. Turn OFF the ignition.
  2. Turn ON the ignition, with the engine OFF.
  3. Observe the manifold absolute pressure (MAP) sensor parameter with the scan tool.
  4. Attempt to induce the fault that set the DTC by manipulating the following items:
    • The MAP sensor wiring harness
    • The MAP sensor electrical connector
    • The engine control module (ECM) connector
Refer to Testing for Intermittent Conditions and Poor Connections .Is the MAP sensor parameter affected during any part of the test?		 Go to Step 4  Go to Step 8 
4 Test the 5-volt reference circuit between the ECM and the MAP sensor for an open or for high resistance. Refer to Circuit Testing and Wiring Repairs .
Did you find and correct the condition?		 Go to Step 8  Go to Step 5 
5 Test the MAP sensor signal circuit between the ECM and the MAP sensor for the following intermittent conditions:
  • A short to ground
  • An open
  • High resistance

Refer to Circuit Testing and Wiring Repairs .
Did you find and correct the condition?		 Go to Step 8  Go to Step 6 
6 Test for an intermittent and for a poor connection at the MAP sensor. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs .
Did you find and correct the condition?		 Go to Step 8  Go to Step 7 
7 Test for an intermittent and for a poor connection at the ECM. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs .
Did you complete the action?		 Go to Step 8  -
8
  1. Clear the DTCs with a scan tool.
  2. Turn OFF the ignition for 90 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/Failure Records.
Did the DTC fail this ignition?		 Go to Step 2  Go to Step 9 
9 Observe the Capture Info with a scan tool.
Are there any DTCs that have not been diagnosed?		 Go to Diagnostic Trouble Code (DTC) List - Vehicle System OK
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