DTC P0015:00 [PCM (SKYACTIV-G 1.5, SKYACTIV-G 2.0)]

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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-retarded
DETECTION CONDITION
Determination conditions
•  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.
Preconditions
•  Engine coolant temperature: 30 °C {86 °F} or more*1
•  Hydraulic variable valve timing control: maximum cam advanced mode
•  The following DTCs are not detected:
―  P0335:00, 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
•  The check engine light may be illuminated depending on the condition.
POSSIBLE CAUSE
•  OCV malfunction
―  Spool valve in OCV is stuck in retard 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 advance side, the PCM determines an excess retard 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 (MT)/D position (AT) 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 (MT)/D position (AT) and rapidly accelerate the vehicle to 50 km/h {31 mph} again.

PID Item/Simulation Item Used In Diagnosis

PID/DATA monitor item table

Item

Definition

Unit

Condition/Specification
VT_EX_ACT
Actual exhaust variable valve timing control
•  Retard amount from max advance position
°(deg)
•  Displays actual exhaust variable valve timing—retard amount from max advance position
Ignition switched ON (engine off)
―  Approx. 0 ° (ECT is 89 °C {192 °F})
Idle (after warm up)
―  Approx. 0.25 ° (ECT is 91 °C {196 °F})
Racing (engine speed is 2,000 rpm)
―  Approx. 21.43 ° (ECT is 89 °C {192 °F})
Racing (engine speed is 4,000 rpm)
―  Approx. 35.93 ° (ECT is 88 °C {190 °F})
VT_EX_DES
Target exhaust variable valve timing control
•  Retard amount from max advance position
°(deg)
•  Displays target exhaust variable valve timing—retard amount from max advance position
Ignition switched ON (engine off)
―  Approx. 0 ° (ECT is 89 °C {192 °F})
Idle (after warm up)
―  Approx. 0 ° (ECT is 91 °C {196 °F})
Racing (engine speed is 2,000 rpm)
―  Approx. 22.87 ° (ECT is 89 °C {192 °F})
Racing (engine speed is 4,000 rpm)
―  Approx. 36 ° (ECT is 88 °C {190 °F})


Function Inspection Using M-MDS

STEP

INSPECTION

RESULTS

ACTION
1
PURPOSE: VERIFY RELATED SERVICE INFORMATION AVAILABILITY
•  Verify related Service Information availability.
•  Is any related Service Information available?
Yes
Perform repair or diagnosis according to the available Service Information.
•  If the vehicle is not repaired, go to the next step.
No
Go to the next step.
2
PURPOSE: RECORD VEHICLE STATUS AT TIME OF DTC DETECTION TO UTILIZE WITH REPEATABILITY VERIFICATION
Note
•  Recording can be facilitated using the screen capture function of the PC.
•  Record the FREEZE FRAME DATA/snapshot data on the repair order.
—
Go to the next step.
3
PURPOSE: VERIFY IF DIAGNOSTIC RESULT IS AFFECTED BY OTHER RELATED DTCs OCCURRING
•  Switch the ignition off, then ON (engine off).
•  Perform the Pending Trouble Code Access Procedure and DTC Reading Procedure.
•  Is the PENDING CODE/DTC P0335:00, P0365:00, P2090:00 or P2091:00 also present?
Yes
Go to the applicable PENDING CODE or DTC inspection.
(See DTC P0335:00 [PCM (SKYACTIV-G 1.5, SKYACTIV-G 2.0)].)
(See DTC P0365:00 [PCM (SKYACTIV-G 1.5, SKYACTIV-G 2.0)].)
(See DTC P2090:00 [PCM (SKYACTIV-G 1.5, SKYACTIV-G 2.0)].)
(See DTC P2091:00 [PCM (SKYACTIV-G 1.5, SKYACTIV-G 2.0)].)
Go to the next step.
No
Go to the next step.
4
PURPOSE: VERIFY IF DIAGNOSTIC RESULT IS AFFECTED BY DTC OCCURRING FROM OIL PRESSURE SWITCH
•  Perform the Pending Trouble Code Access Procedure and DTC Reading Procedure.
•  Is the PENDING CODE/DTC P0524:00 also present?
Yes
Go to the applicable PENDING CODE or DTC inspection.
(See DTC P0524:00 [PCM (SKYACTIV-G 1.5, SKYACTIV-G 2.0)].)
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:
―  VT_EX_ACT
―  VT_EX_DES
•  Implement the repeatability verification procedure.
•  Does the monitor value of the PID item VT_EX_ACT conform to the VT_EX_DES 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 VT_EX_ACT PID using the M-MDS.
•  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 procedure from Step 9.
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.
•  Step 9—10
―  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.
•  Remove the OCV.
•  Inspect the OCV.
•  Can the spool valve in OCV operation be verified?
Yes
Go to the next step.
No
Replace the OCV, then go to Step 9.
(See OIL CONTROL VALVE (OCV) REMOVAL/INSTALLATION [SKYACTIV-G 1.5, SKYACTIV-G 2.0].)
2
PURPOSE: INSPECT ENGINE OIL LEVEL
•  Inspect the engine oil level.
•  Is the engine oil level sufficient?
Yes
Go to the next step.
No
Add genuine motor oil, then go to Step 9.
(See ENGINE OIL REPLACEMENT [SKYACTIV-G 1.5, SKYACTIV-G 2.0].)
3
PURPOSE: DETERMINE INTEGRITY OF HYDRAULIC VARIABLE VALVE TIMING ACTUATOR
•  Inspect the hydraulic variable valve timing actuator.
•  Is there any malfunction?
Yes
Replace the hydraulic variable valve timing actuator, then go to Step 9.
(See ELECTRIC VARIABLE VALVE TIMING ACTUATOR, HYDRAULIC VARIABLE VALVE TIMING ACTUATOR REMOVAL/INSTALLATION [SKYACTIV-G 1.5, SKYACTIV-G 2.0].)
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).
•  Is there any malfunction?
Yes
Repair or replace the malfunctioning part.
Assemble the timing chain using the correct timing, then go to Step 9.
(See TIMING CHAIN REMOVAL/INSTALLATION [SKYACTIV-G 1.5, SKYACTIV-G 2.0].)
No
Go to the next step.
5
PURPOSE: VERIFY IF FOREIGN MATTER ON EXHAUST CMP SENSOR DETECTION AREA AFFECTS DIAGNOSTIC RESULTS
•  Visually inspect for exhaust CMP sensor.
•  Is there foreign matter such as metallic dust on the exhaust CMP sensor detection area?
Yes
Remove the foreign matter, then go to Step 9.
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, then go to Step 9.
(See ENGINE OIL REPLACEMENT [SKYACTIV-G 1.5, SKYACTIV-G 2.0].)
7
PURPOSE: INSPECT ENGINE OIL PRESSURE
•  Inspect the engine oil pressure.
•  Is there any malfunction?
Yes
Go to the next step.
No
Go to Step 9.
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 part according to the inspection results.
Add genuine motor oil, then go to the next step.
(See ENGINE OIL REPLACEMENT [SKYACTIV-G 1.5, SKYACTIV-G 2.0].)
No
Go to the next step.
9
PURPOSE: VERIFICATION OF VEHICLE REPAIR COMPLETION
•  Always reconnect all disconnected connectors.
•  Clear the DTC from the PCM memory using the M-MDS.
•  Implement the repeatability verification procedure.
•  Perform the Pending Trouble Code Access Procedure.
•  Is the same Pending DTC present?
Yes
Repeat the inspection from Step 1.
•  If the malfunction recurs, replace the PCM.
Go to the next step.
No
Go to the next step.
10
PURPOSE: VERIFY IF THERE IS ANY OTHER MALFUNCTION
•  Is any other DTC or pending code stored?
Yes
Go to the applicable DTC inspection.
(See DTC TABLE [PCM (SKYACTIV-G 1.5, SKYACTIV-G 2.0)].)
No
DTC troubleshooting completed.