P0016

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

Circuit Description

The crankshaft position (CKP) sensor is located on the flywheel housing. The sensor rotor is fixed on the flywheel. There are 56 notches spaced 60 apart and a 300 section that is open span. This open span portion allows for the detection of top dead center (TDC).
The camshaft position (CMP) sensor is installed on the cylinder head at the rear of the camshaft gear. The CMP sensor detects total of five projections per one engine cycle (four projections arranged equally every 900 and one reference projection on the camshaft gear surface).
Detecting the open span portion from the CKP sensor and one reference projection from the CMP sensor the ECM determines cylinder #1 compression TDC to ensure they correlate with each other. If the ECM detects both signals are out of synchronization this DTC will set.

Condition for Running the DTC

^ DTCs P0116 P0117 P0118 P0335 P0336 P0340 P0341 P0642 P0643 P0652 and P0653 are not set.
^ The battery voltage is between 10 to 16 volts.
^ The ignition switch is ON.
^ The CKP sensor signal pulse is detected.
^ The CMP sensor signal pulse is detected.

Condition for Setting the DTC

^ The ECM detects that the CKP sensor signal pulses and CMP sensor signal pulses are out of synchronization during engine 5 rotations.

Action Taken When the DTC Sets

^ The ECM illuminates the MIL on the second consecutive driving cycle when the diagnostic runs and fails. Refer to DTC Type Definitions for Action Taken When the DTC Sets - Type B.

Condition for Clearing the DTC

^ Refer to DTC Type Definitions for Condition for Clearing the MIL/DTC - Type B.

Diagnostic Aids

^ This DTC is cause by an incorrect mechanical timing condition which is most likely caused by wrong installation of timing gear flywheel or camshaft.

Circuit System Testing DTC P0016