Test Description

The numbers below refer to the step numbers on the diagnostic table.

2: This step determines if a condition is present.
5: This step inspects for any recent engine mechanical repairs. An incorrectly installed camshaft, crankshaft, or timing chain can cause this DTC to set.

DTC P0016

Step	Action	Yes	No
1	Did you perform the Diagnostic System Check - Vehicle?	Go to Step 2	Go to Diagnostic System Check - Vehicle in Vehicle DTC Information
2	Start the engine. Allow the engine to reach the normal operating temperature. 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	Observe the Freeze Frame/Failure Records for this DTC. Turn OFF the ignition for 30 seconds. Start the engine. 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	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: A timing chain tensioner condition An incorrectly installed timing chain Excessive play in the timing chain A timing chain that jumped teeth Refer to Timing Chain and Sprockets Replacement and Timing Chain and Sprockets Cleaning and Inspection in Engine Mechanical. Did you complete the repair?	Go to Step 6	-
6	Clear the DTCs with a scan tool. Turn OFF the ignition for 30 seconds. Start the engine. 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