Test Description

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

2: This step determines if a condition is present.
4: 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
Schematic Reference: Engine Controls Schematics Connector End View Reference: Powertrain Control Module 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	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 3	Go to Diagnostic Aids
3	Observe the DTC Information with a scan tool. Does the scan tool display that any other DTCs also failed this ignition?	Go to Diagnostic Trouble Code (DTC) List - Vehicle	Go to Step 4
4	Repair one of the following conditions with the timing chain system: 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 Alignment Diagram and Timing Chain and Sprocket Replacement . Did you complete the repair?	Go to Step 5	-
5	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 6
6	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