P0016

DTC P0016 or P0017

Diagnostic Instructions

* Perform the Diagnostic System Check - Vehicle Diagnostic System Check - Vehicle prior to using this diagnostic procedure.

* Review Strategy Based Diagnosis Strategy Based Diagnosis for an overview of the diagnostic approach.

* Diagnostic Procedure Instructions Diagnostic Procedure Instructions provides an overview of each diagnostic category.

DTC Descriptors

DTC P0016
- Crankshaft Position - Intake Camshaft Position Not Plausible

DTC P0017
- Crankshaft Position - Exhaust Camshaft Position Not Plausible

Circuit/System Description

The engine control module (ECM) uses the crankshaft position sensor, camshaft position sensor - intake and the camshaft position sensor - exhaust information to monitor the correlation between the crankshaft, intake and exhaust camshaft position.

Conditions for Running the DTC

* DTCs P0335, P0336, P0340, P0341, P0365, P0366, P0641, P0651 are not set.

* The crankshaft and camshaft position signals are synchronized.

* The engine is spinning.

* The camshaft actuators are in the parked position.

* The time since last execution of diagnostic is less than 1 s

Conditions for Setting the DTC

The ECM detects an camshaft to crankshaft misalignment. The DTC sets if the crankshaft position sensor signal is 10 degrees before or after the nominal position for 4 out of 5 camshaft revolutions in relation to the crankshaft angle while the engine is spinning.

Action Taken When the DTC Sets

DTCs P0016 and P0017 are Type B DTCs.

Conditions for Clearing the DTC

DTCs P0016 and P0017 are Type B DTCs.

Diagnostic Aids

The following conditions can also set the DTC:

* Inspect the engine for any recent engine mechanical repairs. An incorrectly installed camshaft, camshaft actuator, camshaft position sensor, crankshaft position sensor, or timing chain can cause this DTC to set.

* Crankshaft end play out of the range can cause this DTC to set.

* A camshaft actuator that is in the full advance or retard position can cause this DTC to set.

* A crankshaft reluctor wheel that has moved in relationship to top dead center (TDC) can cause this DTC to set.

* Observing the desired and actual camshaft angle parameters, with a scan tool before a DTC sets, may help to isolate whether a condition is specific to one camshaft, or caused by a condition with the crankshaft timing.

Reference Information

Schematic Reference

Engine Controls Schematics [1][2]Electrical Diagrams

Connector End View Reference

Component Connector End Views Fuel Pump and Level Sensor Assembly

Electrical Information Reference

* Circuit Testing Circuit Testing

* Connector Repairs Connector Repairs

* Testing for Intermittent Conditions and Poor Connections Testing for Intermittent Conditions and Poor Connections

* Wiring Repairs Wiring Repairs

DTC Type Reference

Powertrain Diagnostic Trouble Code (DTC) Type Definitions Powertrain Diagnostic Trouble Code (DTC) Type Definitions

Scan Tool Reference

Control Module References Control Module References for scan tool information

Circuit/System Verification

1. Ignition ON, observe the DTC information with a scan tool. DTC P0335, P0336, P0340, P0341, P0365, or P0366 should not be set.

• If a DTC is set, refer to Diagnostic Trouble Code (DTC) List - Vehicle Diagnostic Trouble Code (DTC) List - Vehicle.

2. Engine idling at the normal operating temperature. DTCs P0016 or P0017 should not set.

• If a DTC is set, inspect for the following:

* The correct installation of the B23E Camshaft Position Sensor - Exhaust and the B23F Camshaft Position Sensor - Intake

* The correct installation of the B26 Crankshaft Position Sensor

* A timing chain tensioner condition

* An incorrectly installed timing chain

* Excessive play in the timing chain

* A timing chain that jumped teeth

* A crankshaft reluctor wheel that has moved in relationship to top dead center (TDC) on the crankshaft

• If you find a condition, repair as necessary.

3. Operate the vehicle within the conditions for running the DTC to verify the DTC does not reset. You may also operate the vehicle within the conditions that are captured in the freeze frame/failure records data.

Repair Instructions

Perform the Diagnostic Repair Verification Verification Tests after completing the repair.

* Camshaft Timing Chain Replacement Service and Repair

* Camshaft Timing Chain Removal 28. Camshaft Timing Chain Removal

* Crankshaft Position Sensor Replacement Service and Repair

* Timing Chain Tensioner Removal 29. Timing Chain Tensioner Removal

* Timing Chain Tensioner Replacement Service and Repair