GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Pontiac 🢒 2009 🢒 Vibe - AWD 🢒 Engine 🢒 Engine Controls and Fuel - 2.4L (LAX) 🢒 DTC P0016

Diagnostic Instructions
    • Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure.
    • Review Strategy Based Diagnosis for an overview of the diagnostic approach.
    •  Diagnostic Procedure Instructions provides an overview of each diagnostic category

DTC Descriptors

DTC P0016: Crankshaft Position (CKP) - Intake Camshaft Position (CMP) Correlation

Circuit/System Description

This diagnostic monitors the relationship between the CKP sensor and CMP sensor. The powertrain control module (PCM) is continuously comparing the CKP sensor signal to the CMP sensor signal. The PCM can detect incorrect camshaft to crankshaft timing. If the PCM suspects incorrect camshaft to crankshaft timing the CMP actuator system operation will cease and DTC P0016 sets.

Conditions for Running the DTC
    • DTCs P0011, P0012, P0115, P0116, P0117, P0118 are not set.
    • The engine is running between 550-1,000 RPM.
    • The CMP actuator system is active.
    • DTC P0016 runs once per drive cycle when the above conditions have been met.

Conditions for Setting the DTC

The PCM detects an error in the CMP actuator learned angle for greater than 18 seconds.

Action Taken When the DTC Sets
    • DTC P0016 is a Type B DTC.
    • The CMP actuator is commanded to the home or parked position.

Conditions for Clearing the MIL/DTC

DTC P0016 is a Type B DTC.

Diagnostic Aids

A camshaft actuator stuck in the full actuation position may cause the engine to crank but not start.

Reference Information

Schematic Reference

Engine Controls Schematics

Connector End View Reference

Component Connector End Views

Description and Operation

Camshaft Actuator System Description

Electrical Information Reference

    •  Circuit Testing
    •  Connector Repairs
    •  Testing for Intermittent Conditions and Poor Connections
    •  Wiring Repairs

DTC Type Reference

Powertrain Diagnostic Trouble Code (DTC) Type Definitions

Scan Tool Reference

Control Module References for scan tool information

Circuit/System Verification
  1. Ignition ON, observe the DTC information with a scan tool. Verify that DTC P0010, P0011, P0012, P0335, P0339, P0340, or P0341 are not set.
    2. ⇒If any of the DTCs listed are set refer to Diagnostic Trouble Code (DTC) List - Vehicle for further diagnosis.
  2. Idle the engine at normal operating temperature for 10 minutes. DTC P0016 should not set.

Circuit/System Testing
  1. Inspect the engine or review the service history of the vehicle for any recent repairs involving the timing chain, camshaft, or crankshaft.
  2. Test for the following conditions:
    3. • The correct installation of the camshaft sensors
    • The correct installation of the crankshaft 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 or camshaft reluctor wheel that has moved in relationship to top dead center (TDC) on the crankshaft
    ⇒If you find any of the above conditions, repair as necessary.

Repair Instructions

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.

Camshaft Position Actuator Locking Pin Adjustment for timing chain, sprockets, and CMP actuator assembly replacement.