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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1870 (Engine Controls And Fuel - 3.5L (L66) - DTC P2227 To DTC P2649) >> DTC P2415 >> 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 verifies that there is no other condition with the HO2S circuits.
  2. 4:  This step verifies that a condition exists. If the HO2S is secure in the exhaust system and the DTC fails this ignition, replace the HO2S.
DTC P2415

Step Action Yes No
1 Did you perform the Diagnostic System Check - Vehicle? Go to Step 2  Go to Diagnostic System Check - Vehicle
  1. Turn ON the ignition, with the engine OFF.
  2. Observe the DTC information with a scan tool.
Is DTC P2241, P2242, P2247, P2249, P2255, P2256, P2630, or P2631 set?
Go to Diagnostic Trouble Code (DTC) List - Vehicle Go to Step 3 
3 Inspect the condition of the appropriate heated oxygen sensor (HO2S).
Is the HO2S loose in the exhaust pipe?
Go to Step 5  Go to Step 4 
  1. Observe the Freeze Frame/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/Failure Records data.
Did the DTC fail this ignition cycle?
Go to Step 6  Go to Diagnostic Aids
5 Reinstall the appropriate HO2S.
Did you complete the repair?
Go to Step 7  -
6 Replace the HO2S sensor. Refer to Heated Oxygen Sensor Replacement - Bank 2 Sensor 1 .
Did you complete the replacement?
Go to Step 7  -
7
  1. Use the scan tool in order to clear the DTCs.
  2. Turn OFF the ignition for 90 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 8  Go to Step 2 
8 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