P0016
DTC P0016
GENERAL DESCRIPTION
A Crankshaft Position Sensor (CKPS) is a magnetic type sensor that generates voltage using a sensor and a target wheel mounted on the crankshaft. The ECM/PCM calculates engine RPM by using the sensor's signal and controls the injection duration and the ignition timing.Camshaft Position Sensor (CMPS) is a hall sensor and detects the camshaft position by using a hall element. It is related with Crankshaft Position Sensor (CKPS) and detects the piston position of the each cylinder which the CKPS can't detect. This CMPS signal is sent to the ECM/PCM and it uses CMPS signals for determining the ignition timing with CKPS signals. CMPS makes Sequential Injection possible.
DTC DESCRIPTION
If the deviation between CKPS and CMPS is bigger than the threshold value, ECM/PCM sets DTC P0016.
DTC Detecting Condition:
Schematic Diagram - A/T:
Schematic Diagram - M/T:
Signal Waveform And Data:
MONITOR SCANTOOL DATA
1. Connect scantool to Data Link Connector(DLC).
2. Warm up the engine to normal operating temperature.
3. Monitor the "OCV and RPM" parameters on the scantool.
4. Are the parameters displayed correctly?
YES - Fault is intermittent caused by poor contact in the sensor's and/or ECM's connector or was repaired and ECM/PCM memory was not cleared. Thoroughly check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration, or damage. Repair or replace as necessary and go to "Verification of vehicle Repair" procedure.
NO - Go to "Terminal and Connector Inspection" procedure.
TERMINAL AND CONNECTOR INSPECTION
1. Many malfunctions in the electrical system are caused by poor harness and terminals. Faults can also be caused by interference from other electrical systems, and mechanical or chemical damage.
2. Thoroughly check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration, or damage.
3. Has a problem been found?
YES - Repair as necessary and go to "Verification of vehicle Repair" procedure.
NO - Go to "CMPS circuit inspection" procedure.
CMPS CIRCUIT INSPECTION
1. Key "OFF".
2. Disconnect the CMPS connector.
3. Key "ON".
4. Measure the voltage between terminal 1, 2, 3 of CMPS harness connector and chassis ground.
Specification : Terminal 1 B+
Terminal 2 Approx. 12 V
Terminal 3 Approx. 0 V
5. Is the measured voltage within specifications?
YES - Go to "CKPS circuit inspection" procedure.
NO - Repair Open or Short in CMPS circuit, and go to " Verification of Vehicle Repair" procedure.
CKPS CIRCUIT INSPECTION
1. Key "OFF".
2. Disconnect CKPS connector.
3. Key "ON".
4. Measure the voltage Between terminal 1, 2 of CKPS harness connector and chassis ground.
Specification : Approx. 2.5 V
5. Is the measured voltage within specifications?
YES - Go to "System Inspection" procedure.
NO - Repair Open in CKPS circuit, and go to " Verification of Vehicle Repair" procedure.
SYSTEM INSPECTION
1. Visual check.
a. Check engine oil gauge.
b. Check contamination of engine oil.
c. Check contamination of OCV filter.
d. Check clog of oil path.
e. Is there any problem?
YES - Repair as necessary and go to "Verification of vehicle Repair" procedure.
NO - Go to "Component inspection" procedure.
COMPONENT INSPECTION
1. Check CMPS, CKPS.
a. Key "OFF". (Don't disconnect sensors.)
b. Select "vehicle scopemeter" in the menu, and connect channel A of scantool with terminal 2 of CKPS harness connector.
c. Connect Channel B of scantool with terminal 1 or 2 of CMPS harness connector.
d. Engine start. And check the signal waveforms.
e. Is the measured signal waveforms of CKPS/CMPS normal?
YES - Substitute with a known - good ECM/PCM and check for proper operation. If the problem is corrected, replace ECM/PCM and then go to "Verification of Vehicle Repair" procedure.
NO - Go to "OCV" procedure.
2. Check OCV.
a. Connect scantool to Data Link Connector(DLC).
b. Key "ON".
c. Perform "Actuation Test" for OCV.
d. Does the OCV work normally (Check Clicking Sound)?
YES - Go to "Check timing mark" procedure.
NO - Substitute with a known - good OCV and check for proper operation. If the problem is corrected, replace OCV and then go to "Verification of Vehicle Repair" procedure.
3. Check timing mark.
a. Key "OFF".
b. Check timing mark.
c. Is timing mark normal?
YES - Substitute with a known - good CVVT and check for proper operation. If the problem is corrected, replace CVVT and then go to "Verification of Vehicle Repair" procedure.
NO - Reset timing mark, and go to " Verification of Vehicle Repair" procedure.
VERIFICATION OF VEHICLE REPAIR
After a repair, it is essential to verify that the fault has been corrected.
1. Connect scan tool and select "Diagnostic Trouble Codes(DTCs)" mode.
2. Clear the DTCs and Operate the vehicle within DTC Enable conditions in General information.
3. Are any DTCs present ?
YES - Go to the applicable troubleshooting procedure.
NO - System is performing to specification at this time.