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Home >> Pontiac >> 2005 >> Grand Prix GXP >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - 5.3L - DTC P0016 To P0141 >> DTC P0016 >> Test Description
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Test Description

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

  1. 5:  An incorrectly installed camshaft gear, crankshaft sprocket, or timing chain can cause this DTC to set.
DTC P0016

Step Action Yes No
Schematic Reference: Engine Controls Schematics
Connector End View Reference:  PSD SIE TITLE Error: SIE linked to empty Cell ID 138928 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 in Vehicle DTC Information
2
  1. Start the engine.
  2. Allow the engine to reach normal operating temperature.
  3. Observe the DTC information with a scan tool.
Does the scan tool display DTC P0016 failed this ignition?		 Go to Step 4  Go to Step 3 
3
  1. Observe the Freeze Frame/Failure Records 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.
Did the DTC fail this ignition?		 Go to Step 4  Go to Intermittent Conditions
4 Observe the DTC information with a scan tool.
Does the scan tool display that DTC P0335, P0336, P0340, or P0341 also failed this ignition?		 Go to Diagnostic Trouble Code (DTC) List - Vehicle in Vehicle DTC Information Go to Step 5 
5  Repair one of the following conditions:
  • The camshaft gear and the crankshaft sprocket alignment marks are not aligned properly
  • A timing chain tensioner condition
  • An incorrectly installed timing chain
  • Excessive play in the timing chain
  • Incorrect indexing of the timing mark on either the crankshaft sprocket or the camshaft gear

Refer to Timing Chain and Sprockets Cleaning and Inspection , Camshaft and Bearings Cleaning and Inspection , and Timing Chain and Sprockets Installation in Engine Mechanical.
Did you complete the repair?		 Go to Step 6  -
6
  1. Clear the DTCs with a scan tool.
  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.
Did the DTC fail this ignition?		 Go to Step 2  Go to Step 7 
7 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 in Vehicle DTC Information System OK
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