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DTC P0014:00 [PCM (SKYACTIV-G (WITHOUT CYLINDER DEACTIVATION (US)))]

DTC P0014:00 [PCM (SKYACTIV-G (WITHOUT CYLINDER DEACTIVATION (US)))]

SM2565513


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Note
• To determine the malfunctioning part, proceed with the diagnostics from “Function Inspection Using M-MDS”.



Details On DTCs

Description

Hydraulic variable valve timing control system: over-advanced

Detection condition
Determination conditions
• For the advance amount from the maximum exhaust valve retard position, a condition in which the actual advance amount is larger than the target value continues for a specified period of time.
Preconditions
• Engine oil temperature: 20 °C {68 °F} or more *1
• Hydraulic variable valve timing control: feedback mode
• The following DTCs are not detected:
― P0335:00 and P0365:00
*1: Standard can be verified by displaying PIDs using M-MDS
Malfunction determination period
5 s period
Drive cycle
2
Self test type
• CMDTC self test
Sensor used
• CKP sensor
• Exhaust CMP sensor
Fail-safe function
• Not applicable
Vehicle status when DTCs are output
• Not applicable
Possible cause
• OCV malfunction
― Spool valve in OCV is stuck in advanced position
• Low engine oil level
• Hydraulic variable valve timing actuator malfunction
• Timing chain malfunction
― Poor assembly of timing chain
― Looseness or jumping
• Mis-detection of exhaust CMP sensor
• Engine oil malfunction
― Use of unspecified engine oil
― Low engine oil pressure
― Engine oil runners are clogged or have leakage
• PCM malfunction



System Wiring Diagram

• Not applicable



Function Explanation (DTC Detection Outline)

• With the preconditions met, the PCM verifies the conformity of the actual timing relative to the target valve timing. If it does not conform to the normal determination range (difference between target valve timing and actual valve timing is 20 degrees or less) during the malfunction determination period ( approx. 5 s), even if the target valve timing is set to the retard side, the PCM determines an excess advance malfunction condition and stores a DTC.

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Repeatability Verification Procedure

1. Warm up the engine to allow the engine coolant temperature to reach 80 °C {176 °F} or more.
2. Shift to 2nd gear (MTX)/D position (ATX) and rapidly accelerate the vehicle to 50 km/h {31 mph} (to operate hydraulic variable valve timing control).
3. Decelerate to idling.
4. Shift to 2nd gear (MTX)/D position (ATX) and rapidly accelerate the vehicle to 50 km/h {31 mph} again.



PID Item/Simulation Item Used In Diagnosis

PID/DATA monitor item table

PIDs

Reference

VLV_TIMING_ACT_EX
VLV_TIMING_DSD_EX



Function Inspection Using M-MDS

Step

Inspection

Results

Action

1
PURPOSE: VERIFY RELATED REPAIR INFORMATION OR SERVICE INFORMATION AVAILABILITY
• Verify related Service Bulletins, on-line repair information, or Service Information availability.
• Is any related Information available?
Yes
Perform repair or diagnosis according to the available information.
• If the vehicle is not repaired, go to the next step.
No
Go to the next step.
2
PURPOSE: RECORD VEHICLE STATUS WHEN DTC WAS DETECTED TO UTILIZE WITH REPEATABILITY VERIFICATION
• Record the freeze frame data/snapshot data.

Note
• Recording can be facilitated using the screen capture function of the PC.
Go to the next step.
3
PURPOSE: INSPECT FOR OTHER RELATED DTCs
• Perform the DTC inspection for the PCM. (See DTC INSPECTION.)
• Are any of the following DTCs displayed?
― P0335:00
― P0365:00
― P2090:00
― P2091:00
Yes
Repair the malfunctioning location according to the applicable DTC troubleshooting.
Go to the next step.
No
Go to the next step.
4
PURPOSE: VERIFY IF DIAGNOSTIC RESULT IS AFFECTED BY DTC OCCURRING FROM ENGINE OIL PRESSURE
• Perform the DTC inspection for the PCM. (See DTC INSPECTION.)
• Are any of the following DTCs displayed?
― P0524:00
Yes
Repair the malfunctioning location according to the applicable DTC troubleshooting.
Go to the next step.
No
Go to the next step.
5
PURPOSE: VERIFY CONFORMITY OF ACTUAL EXHAUST VALVE TIMING AND DETERMINE IF MALFUNCTION IS CAUSED BY OCV OR CONNECTOR RELATED
• Start the engine and idle it.
• Access the following PIDs using the M-MDS: (See PID/DATA MONITOR INSPECTION.)
― VLV_TIMING_ACT_EX
― VLV_TIMING_DSD_EX
• Implement the repeatability verification procedure. (See Repeatability Verification Procedure.)
• Does the monitor value of the PID item VLV_TIMING_ACT_EX conform to the VLV_TIMING_DSD_EX PID value?
Yes
Go to the next step.
No
Go to Troubleshooting Diagnostic Procedure to perform the procedure from Step 1.
6
PURPOSE: VERIFY CONNECTOR CONNECTIONS
• Start the engine.
• Access the VLV_TIMING_ACT_EX PID using the M-MDS. (See PID/DATA MONITOR INSPECTION.)
• Does the PID value fluctuate when the following connectors are shaken?
― OCV
― PCM
Yes
Repair or replace the applicable wiring harness or connector parts.
Go to Troubleshooting Diagnostic Procedure to perform the repair completion verification.
No
Go to Troubleshooting Diagnostic Procedure to perform the procedure from Step 1.



Troubleshooting Diagnostic Procedure

Intention of troubleshooting procedure
• Step 1
― Perform a unit inspection of the OCV.
• Step 2
― Verify engine oil level.
• Step 3—4
― Perform an inspection of the hydraulic variable valve timing drive parts.
• Step 5
― Inspect the exhaust CMP sensor detection areas for adhesion of foreign matter.
• Step 6—8
― Perform an engine oil related inspection.
• Repair completion verification
― Verify that the primary malfunction is resolved and there are no other malfunctions.

Step

Inspection

Results

Action

1
PURPOSE: VERIFY IF SPOOL VALVE IN OCV IS STUCK
• Switch the ignition off.
• Can the spool valve in OCV operation be verified?
Yes
Go to the next step.
No
Replace the OCV and perform the repair completion verification.
2
PURPOSE: INSPECT ENGINE OIL LEVEL
• Is the engine oil level sufficient?
Yes
Go to the next step.
No
Add genuine motor oil and perform the repair completion verification.
3
PURPOSE: DETERMINE INTEGRITY OF HYDRAULIC VARIABLE VALVE TIMING ACTUATOR
• Is there any malfunction?
Yes
Replace the hydraulic variable valve timing actuator and perform the repair completion verification.
No
Go to the next step.
4
PURPOSE: VERIFY ASSEMBLY CONDITION OF TIMING CHAIN
• Verify the condition of the timing chain assembly (exhaust valve timing, looseness, jumping). (See TIMING CHAIN REMOVAL/INSTALLATION [SKYACTIV-G (WITHOUT CYLINDER DEACTIVATION (US))].)
• Is there any malfunction?
Yes
Repair or replace the malfunctioning part.
Assemble the timing chain using the correct timing.
Go to repair completion verification.
No
Go to the next step.
5
PURPOSE: VERIFY IF FOREIGN MATTER ON EXHAUST CMP SENSOR DETECTION AREA AFFECTS DIAGNOSTIC RESULTS
• Is there foreign matter such as metallic dust on the exhaust CMP sensor detection area?
Yes
Remove the foreign matter and perform the repair completion verification.
No
Go to the next step.
6
PURPOSE: INSPECT IF INSUFFICIENT HYDRAULIC PRESSURE CAUSED BY USE OF UNSPECIFIED ENGINE OIL
• Is the specified engine oil being used?
Yes
Go to the next step.
No
Replace the engine oil with genuine motor oil and perform the repair completion verification.
7
PURPOSE: INSPECT ENGINE OIL PRESSURE
• Is there any malfunction?
Yes
Go to the next step.
No
Go to repair completion verification.
8
PURPOSE: VERIFY IF MALFUNCTION RELATED TO ENGINE OIL LEAK OR RESTRICTION AFFECTS DIAGNOSTIC RESULTS
• Start the engine.
• Verify if there is engine oil leakage in the oil passage or restriction.
• Is there engine oil leakage in the oil passage or restriction?
Yes
Repair or replace the malfunctioning location.
Add genuine motor oil and perform the repair completion verification.
No
Go to the next step.
Repair completion verification 1
PURPOSE: VERIFY THAT VEHICLE IS REPAIRED
• Install/connect the part removed/disconnected during the troubleshooting procedure.
• Clear the DTC recorded in the memory. (See CLEARING DTC.)
• Replicate the vehicle conditions at the time the DTC was detected using the following procedure.
― Implement the repeatability verification procedure. (See Repeatability Verification Procedure.)
• Perform the DTC inspection for the PCM. (See DTC INSPECTION.)
• Is the same Pending DTC present?
Yes
Refer to the controller area network (CAN) malfunction diagnosis flow to inspect for a CAN communication error.
If the CAN communication is normal, perform the diagnosis from Step 1.
• If the malfunction recurs, replace the PCM, then go to the next step. (See PCM REMOVAL/INSTALLATION [SKYACTIV-G (WITHOUT CYLINDER DEACTIVATION (US))].)
No
Go to the next step.
Repair completion verification 2
PURPOSE: VERIFY IF OTHER DTCs DISPLAYED
• Perform the DTC inspection. (See DTC INSPECTION.)
• Are any other DTCs displayed?
Yes
Repair the malfunctioning location according to the applicable DTC troubleshooting.
No
DTC troubleshooting completed.