DTC P0015:00 [PCM (SKYACTIV-G (WITHOUT CYLINDER DEACTIVATION (US)))]
DTC P0015:00 [PCM (SKYACTIV-G (WITHOUT CYLINDER DEACTIVATION (US)))]
SM2565515
id0102t40081u5
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Note
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• To determine the malfunctioning part, proceed with the diagnostics from “Function Inspection Using M-MDS”.
Details On DTCs
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Description |
Hydraulic variable valve timing control system: over-retarded |
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Detection condition
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Determination conditions
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• For the advance amount from the maximum exhaust valve retard position, a condition in which the actual advance amount is smaller than the target value continues for a specified period of time.
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Preconditions
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• Engine oil temperature: 20 °C {68 °F} or more *1
• Hydraulic variable valve timing control: maximum cam advanced mode
• The following DTCs are not detected:
*1: Standard can be verified by displaying PIDs using M-MDS
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Malfunction determination period
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• 5 s period
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Drive cycle
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• 2
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Self test type
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• CMDTC self test
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Sensor used
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• CKP sensor
• Exhaust CMP sensor
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Fail-safe function
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• Not applicable
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Vehicle status when DTCs are output
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• Not applicable
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Possible cause
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• OCV malfunction
• Low engine oil level
• Hydraulic variable valve timing actuator malfunction
• Timing chain malfunction
• Mis-detection of exhaust CMP sensor
• Engine oil malfunction
• PCM malfunction
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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 advance side, the PCM determines an excess retard malfunction condition and stores a DTC.
am3zzw00033223
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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
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PIDs |
Reference |
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VLV_TIMING_ACT_EX
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VLV_TIMING_DSD_EX
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Function Inspection Using M-MDS
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Step |
Inspection |
Results |
Action |
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1
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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?
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Yes
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Perform repair or diagnosis according to the available information.
• If the vehicle is not repaired, go to the next step.
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No
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Go to the next step.
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2
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PURPOSE: RECORD VEHICLE STATUS WHEN DTC WAS DETECTED TO UTILIZE WITH REPEATABILITY VERIFICATION
• Record the freeze frame data/snapshot data.
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—
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Go to the next step.
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3
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PURPOSE: INSPECT FOR OTHER RELATED DTCs
• Perform the DTC inspection for the PCM. (See DTC INSPECTION.)
• Are any of the following DTCs displayed?
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Yes
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Repair the malfunctioning location according to the applicable DTC troubleshooting.
Go to the next step.
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No
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Go to the next step.
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4
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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?
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Yes
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Repair the malfunctioning location according to the applicable DTC troubleshooting.
Go to the next step.
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No
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Go to the next step.
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5
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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.)
• 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?
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Yes
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Go to the next step.
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No
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Go to Troubleshooting Diagnostic Procedure to perform the procedure from Step 1.
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6
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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?
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Yes
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Repair or replace the applicable wiring harness or connector parts.
Go to Troubleshooting Diagnostic Procedure to perform the repair completion verification.
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No
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Go to Troubleshooting Diagnostic Procedure to perform the procedure from Step 1.
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Troubleshooting Diagnostic Procedure
Intention of troubleshooting procedure
• Step 1
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― Perform a unit inspection of the OCV.
• Step 2
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― Verify engine oil level.
• Step 3—4
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― Perform an inspection of the hydraulic variable valve timing drive parts.
• Step 5
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― Inspect the exhaust CMP sensor detection areas for adhesion of foreign matter.
• Step 6—8
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― Perform an engine oil related inspection.
• Repair completion verification
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― Verify that the primary malfunction is resolved and there are no other malfunctions.
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Step |
Inspection |
Results |
Action |
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1
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PURPOSE: VERIFY IF SPOOL VALVE IN OCV IS STUCK
• Switch the ignition off.
• Remove the OCV. (See OIL CONTROL VALVE (OCV) REMOVAL/INSTALLATION [SKYACTIV-G (WITHOUT CYLINDER DEACTIVATION (US))].)
• Inspect the OCV. (See OIL CONTROL VALVE (OCV) INSPECTION [SKYACTIV-G (WITHOUT CYLINDER DEACTIVATION (US))].)
• Can the spool valve in OCV operation be verified?
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Yes
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Go to the next step.
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No
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Replace the OCV and perform the repair completion verification.
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2
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PURPOSE: INSPECT ENGINE OIL LEVEL
• Inspect the engine oil level. (See ENGINE OIL LEVEL INSPECTION [SKYACTIV-G (WITHOUT CYLINDER DEACTIVATION (US))].)
• Is the engine oil level sufficient?
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Yes
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Go to the next step.
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No
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Add genuine motor oil and perform the repair completion verification.
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3
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PURPOSE: DETERMINE INTEGRITY OF HYDRAULIC VARIABLE VALVE TIMING ACTUATOR
• Inspect the hydraulic variable valve timing actuator. (See HYDRAULIC VARIABLE VALVE TIMING ACTUATOR INSPECTION [SKYACTIV-G (WITHOUT CYLINDER DEACTIVATION (US))].)
• Is there any malfunction?
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Yes
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Replace the hydraulic variable valve timing actuator and perform the repair completion verification.
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No
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Go to the next step.
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4
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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?
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Yes
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Repair or replace the malfunctioning part.
Assemble the timing chain using the correct timing.
Go to repair completion verification.
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No
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Go to the next step.
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5
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PURPOSE: VERIFY IF FOREIGN MATTER ON EXHAUST CMP SENSOR DETECTION AREA AFFECTS DIAGNOSTIC RESULTS
• Visually inspect for exhaust CMP sensor. (See CAMSHAFT POSITION (CMP) SENSOR INSPECTION [SKYACTIV-G (WITHOUT CYLINDER DEACTIVATION (US))].)
• Is there foreign matter such as metallic dust on the exhaust CMP sensor detection area?
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Yes
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Remove the foreign matter and perform the repair completion verification.
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No
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Go to the next step.
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6
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PURPOSE: INSPECT IF INSUFFICIENT HYDRAULIC PRESSURE CAUSED BY USE OF UNSPECIFIED ENGINE OIL
• Is the specified engine oil being used?
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Yes
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Go to the next step.
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No
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Replace the engine oil with genuine motor oil and perform the repair completion verification.
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7
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PURPOSE: INSPECT ENGINE OIL PRESSURE
• Inspect the engine oil pressure. (See OIL PRESSURE INSPECTION [SKYACTIV-G (WITHOUT CYLINDER DEACTIVATION (US))].)
• Is there any malfunction?
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Yes
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Go to the next step.
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No
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Go to repair completion verification.
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8
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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?
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Yes
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Repair or replace the malfunctioning location.
Add genuine motor oil and perform the repair completion verification.
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No
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Go to the next step.
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Repair completion verification 1
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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.
• Perform the DTC inspection for the PCM. (See DTC INSPECTION.)
• Is the same Pending DTC present?
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Yes
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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))].)
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No
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Go to the next step.
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Repair completion verification 2
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PURPOSE: VERIFY IF OTHER DTCs DISPLAYED
• Perform the DTC inspection. (See DTC INSPECTION.)
• Are any other DTCs displayed?
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Yes
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Repair the malfunctioning location according to the applicable DTC troubleshooting.
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No
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DTC troubleshooting completed.
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