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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1471 (Engine Control System - Diagnosis - 4.2L (DTC P0013 To DTC P0138)) >> Diagnosis Information & Procedures >> DTC P0016 >> Test Description

Test Description

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

  1. 2:  If this DTC sets, there is a problem with the CMP actuator solenoid high control circuit shorted to voltage or the solenoid stuck open.
DTC P0016

Step Action Values Yes No
1 Did you perform the Diagnostic System Check-Engine Controls? - Go to Step 2  Go to Diagnostic System Check - Engine Controls
2 
  1. Start the engine.
  2. Clear the DTCs with a scan tool.
Does the scan tool indicate that DTC P0013 failed this ignition?		 - Go to DTC P0013  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 Diagnostic Aids
4
  1. Turn OFF the ignition.
  2. Inspect the crank damper bolt for the proper torque. Refer to Fastener Tightening Specifications and Crankshaft Balancer Replacement in Engine Mechanical.
Was the damper bolt at the proper torque?		 - Go to Step 5  Go to Crankshaft Balancer Cleaning and Inspection in Engine Mechanical
5
  1. Disconnect the camshaft position (CMP) actuator.
  2. Remove the CMP actuator solenoid. Refer to Camshaft Position (CMP) Actuator Solenoid Valve Replacement .
  3. Connect a fused jumper wire between B+ and the CMP actuator high control circuit at the solenoid. Refer to Using Fused Jumper Wires in Wiring Systems.
  4. Jumper the low reference circuit of the camshaft position actuator solenoid to a good ground. Refer to Using Connector Test Adapters in Wiring Systems.
Does the pintle inside the CMP actuator solenoid move?		 - Go to Step 6  Go to Step 8 
6 Inspect the CMP actuator for binding or being stuck. Refer to Camshaft Position (CMP) Actuator Diagnosis in Engine Mechanical.
Did you find and correct the condition?		 - Go to Step 9  Go to Step 7 
7 Inspect the engine for correct valve timing. Refer to Timing Chain, Sprockets, and/or Tensioner Replacement in Engine Mechanical.
Did you find and correct the condition?		 - Go to Step 9  Go to Diagnostic Aids
8 Replace the camshaft position actuator solenoid. Refer to Camshaft Position (CMP) Actuator Solenoid Valve Replacement .
Did you complete the replacement?		 - Go to Step 9  -
9
  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 10 
10 Observe the Capture Info with a scan tool.
Are there any DTCs that have not been diagnosed?		 - Go to Diagnostic Trouble Code (DTC) List System OK
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