P0019 Crank Position/CamPosition Correlation 2/2

P0019 Crank Position/CamPosition Correlation 2/2 - For proper engine control and combustion stability the camshaft and crankshaft positions must be aligned and know such that fuel injection and sprak timing can be introduced at the inteded piston and intake/exhaust valve positions.

During vehicle manufacturing, at end of line, or if a cam/crank relearn is performed, the system learns the differnce between the camshaft and crankshaft postion in terms of engine degrees and stores it in the EEPROM.

During drive cycles, the actual cam/crank position is monitored and compared to the stored value in the EEFROM.If the PCM detect a defference that exceeds a calibrated threshold, a fault is detected P0019 code.

(Causes by DTC P0019, See diagnose code P0017 in this site)

Diagnose code P0019-Crankshaft Position-Camshaft Position correlation Bank 2 sensor 2

(Sory..!!!Step 1-12, see diagnose code P0017 in this site)

Step 13. Check the CKP sensor for an irregular signal
Turn the ignition off, using lab scope and a back probing tool, back probe the CKP signal circuit at the CKP sensor harness connectors. Start the engine, wiggle the related wire harness and lightly tap on the CKP sensor while monitoring the lab scope screen.

Did the CKP sensor signal appear irregular or missing any high/low transitions ?

YES, go to step 16.


NO, go to step 14.

Step 14. Check the CKP sensor circuit wiring or connectors
Using the wiring diagram as a guide, inspect the wiring and connector between the CKP sensor and the PCM. Look for any chafed, pierced, pinched, or partially broken wires. Look for broken, bent, pushed out, or corroded terminals. Verify that there is good pin to terminal contact in the CKP sensor and the PCM connectors. Remove the CKP sensor, inspect the CKP sensor, mounting area, and tone wheel for any conditions that would result in an incorrect signal, such as damage, foreign material or excessive movement.

Were any problems found ?

YES, perform the appropriate repair. The Cam/Crank relearn procedure must be performed every time there has been a repair/replacement made to CMP sensor or CKP sensor, flywheel, valvetrain, timing cain or gear, failure to do so can cause a misfire fault to set. With the scan tool, perform the Cam/Crank relearn procedure. Perform the Powertraint verification test.

NO, go to step 15.

Step 15. Check the Crankshaft tone wheel/pulse ring
Turn the ignition off, remove the CKP sensor, inspect the CKP sensor mounting area, and tone wheel/pulse ring for any condition that would result in an incorrect signal, such as damage, evidence of foreign material or excessive movement.

Where any problems found ? 

YES, perform the appropriate repair.

NO, replace the CKP sensor. With the scan tool, perform the Cam/Crank relearn procedure.

Step 16. Check related PCM and component connections

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