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Test Description

WARNING: This page is about a different car, the 2006 Chevrolet Monte Carlo and 2006 Chevrolet Impala. However, it is still accessible from the selected car via links, so may be relevant.

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: Engine Control Module (ECM) 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. 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 Testing for Intermittent Conditions and Poor Connections
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 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 .
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 System OK
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