P0016

P0016-CRANKSHAFT/CAMSHAFT TIMING MISALIGNMENT - BANK 1 SENSOR 1





For a complete wiring diagram, refer to the Wiring Information.

Theory of Operation

The Crankshaft Position Sensor (CKP) and Camshaft Position Sensor (CMP) are hall effect type sensors. The Powertrain Control Module (PCM) provides the sensors with a 5-Volt supply and a ground on the sensor return circuit. As the notch on the crank pulley or the windows on the camshaft gear travel by the position sensor, a signal is generated on the position sensor signal circuit. The PCM interprets this signal and converts it to an engine speed. If the fault is active the engine will run derated and a hard start/rough idle is possible.

- When Monitored:
While engine is running. The Powertrain Control Module (PCM) monitors the position of the notch on the crankshaft speed sensor target and the camshaft speed sensor target. If the two positions do not match, the PCM then determines that there is a mechanical mis-alignment between the two sensors.

- Set Condition:
When the Crankshaft Position Sensor (CKP) and Camshaft Position Sensor (CMP) are out of sync for more than five seconds. The Powertrain Control Module (PCM) illuminates the MIL light immediately.





Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. Pre-Diagnostic Troubleshooting Procedure.

1. DAMAGE TO THE CKP OR CMP
1. Visually inspect the condition of the tone wheel, CKP, and CMP for damage.

Are any of the components damaged?

Yes

- Repair or replace any damaged component.
- Perform the POWERTRAIN VERIFICATION TEST - 6.7L. Powertrain Verification Test.

No

- Go To 2

2. MECHANICAL MISALIGNMENT OF THE CKP OR CMP
1. Verify the tone wheel is properly positioned relative to the locating pin in the front face of the crankshaft.

Is the tone wheel properly installed?

Yes

- Go To 3

No

- Repair the tone wheel installation.
- Perform the POWERTRAIN VERIFICATION TEST - 6.7L. Powertrain Verification Test.

3. MECHANICAL MISALIGNMENT OF THE CRANKSHAFT AND CAMSHAFT GEARS
1. Check the mechanical alignment of the camshaft gear to the crankshaft gear. Refer to service manual for assistance.

Are the gear teeth in proper alignment?

Yes

- Perform the INTERMITTENT CONDITION diagnostic procedure. Intermittent Condition Test

No

- Repair the gear alignment.
- Perform the POWERTRAIN VERIFICATION TEST - 6.7L. Powertrain Verification Test.