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DTC P0014:00 [PCM (SKYACTIV-X)]

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Note

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

Details On DTCs

Description	Exhaust electric 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	•  Battery voltage: above 11 V *1 •  Engine speed: 5,000 rpm or less*1 •  Engine coolant temperature: 20 °C {68 °F} or more*1 •  The following DTCs are not detected: ―  P0013:00, P0335:00 or P0365:00 *1: Standard can be verified by displaying PIDs using M-MDS
	Malfunction determination period	•  5 s period
	Drive cycle	•  1
	Self test type	•  CMDTC self test
	Sensor used	•  CKP sensor •  Exhaust CMP sensor
Fail-safe function	•  Limits intake air amount •  Inhibits the boost system. •  Stops the EGR control.
Vehicle status when DTCs are output	•  Not applicable
Possible cause	•  Exhaust electric variable valve timing motor/driver connectors or terminals malfunction •  Short to ground or open circuit in exhaust electric variable valve timing relay power supply circuit •  Short to ground in exhaust electric variable valve timing motor/driver power supply circuit •  Open circuit in exhaust electric variable valve timing motor/driver power supply circuit •  PCM connector or terminals malfunction •  Exhaust electric variable valve timing relay malfunction •  Exhaust electric variable valve timing motor malfunction •  Exhaust electric variable valve timing actuator malfunction ―  Exhaust electric variable valve timing actuator is stuck in advanced position ―  Exhaust electric variable valve timing actuator is stuck in retarded position •  Timing chain malfunction ―  Poor assembly of timing chain ―  Looseness or jumping •  Mis-detection of exhaust CMP sensor •  Mis-detection of CKP sensor •  PCM malfunction

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 10 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

PID Item/Simulation Item Used In Diagnosis

PID/DATA monitor item table

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? ―  P0013:00 ―  P0335:00 ―  P0365:00 ―  P1380:00	Yes	Repair the malfunctioning location according to the applicable DTC troubleshooting. (See DTC P0013:00 [PCM (SKYACTIV-X)].) (See DTC P0335:00 [PCM (SKYACTIV-X)].) (See DTC P0365:00 [PCM (SKYACTIV-X)].) (See DTC P1380:00 [PCM (SKYACTIV-X)].)
		No	Go to the next step.
4	PURPOSE: VERIFY DTCs •  Perform the DTC inspection for the following modules. (See DTC INSPECTION.) ―  PCM ―  Mazda M Hybrid battery ―  DC-DC converter (Mazda M Hybrid) ―  Integrated starter generator (ISG) •  Are any DTCs displayed?	Yes	Repair the malfunctioning location according to the applicable DTC troubleshooting. (See DTC TABLE [PCM (SKYACTIV-X)].) (See DTC TABLE [Mazda M Hybrid BATTERY].) (See DTC TABLE [DC-DC CONVERTER (Mazda M Hybrid)].) (See DTC TABLE [INTEGRATED STARTER GENERATOR (ISG)].)
		No	Go to the next step.
5	PURPOSE: VERIFY CONFORMITY OF ACTUAL EXHAUST VALVE TIMING •  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 •  Perform the following: 1.  Race the engine at an engine speed of 3,000 rpm or less. 2.  Run it at idle. 3.  Repeat Step 1 and 2 operations above five times in succession. •  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_IN PID using the M-MDS. (See PID/DATA MONITOR INSPECTION.) •  Does the PID value fluctuate when the following connectors are shaken? ―  Exhaust electric variable valve timing motor/driver ―  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

―  Perform an inspection of the connectors and wiring harnesses between the battery positive terminal and exhaust electric variable valve timing relay and the exhaust electric variable valve timing motor/driver.

―  Perform a unit inspection of the exhaust electric variable valve timing relay.

―  Perform an inspection of the exhaust electric variable valve timing drive parts.

―  Inspect the exhaust CMP sensor and CKP sensor detection areas for adhesion of foreign matter.

―  Verify that the primary malfunction is resolved and there are no other malfunctions.

Step	Inspection	Results	Action
1	PURPOSE: INSPECT EXHAUST ELECTRIC VARIABLE VALVE TIMING RELAY POWER SUPPLY CIRCUIT FOR SHORT TO GROUND AND OPEN CIRCUIT •  Inspect the power supply circuit for an open circuit and short to ground. (See CIRCUIT INSPECTION.) •  Is the circuit normal?	Yes	Go to the next step.
		No	Repair or replace the malfunctioning location and perform the repair completion verification.
2	PURPOSE: INSPECT EXHAUST ELECTRIC VARIABLE VALVE TIMING MOTOR/DRIVER CONNECTOR FOR MALFUNCTION •  Inspect the applicable connector and terminal. (See CONNECTOR INSPECTION.) •  Are the connector and terminal normal?	Yes	Go to the next step.
		No	Repair or replace the malfunctioning location and perform the repair completion verification.
3	PURPOSE: INSPECT EXHAUST ELECTRIC VARIABLE VALVE TIMING MOTOR/DRIVER POWER SUPPLY CIRCUIT FOR SHORT TO GROUND •  Inspect the applicable circuit for a short to ground. (See CIRCUIT INSPECTION.) •  Is the circuit normal?	Yes	Go to the next step.
		No	Repair or replace the malfunctioning location and perform the repair completion verification.
4	PURPOSE: INSPECT EXHAUST ELECTRIC VARIABLE VALVE TIMING MOTOR/DRIVER POWER SUPPLY CIRCUIT FOR OPEN CIRCUIT •  Inspect the applicable circuit for open circuit. (See CIRCUIT INSPECTION.) •  Is the circuit normal?	Yes	Go to the next step.
		No	Repair or replace the malfunctioning location and perform the repair completion verification.
5	PURPOSE: INSPECT PCM CONNECTOR FOR MALFUNCTION •  Inspect the applicable connector and terminal. (See CONNECTOR INSPECTION.) •  Are the connector and terminal normal?	Yes	Go to the next step.
		No	Repair or replace the malfunctioning location and perform the repair completion verification.
6	PURPOSE: INSPECT EXHAUST ELECTRIC VARIABLE VALVE TIMING RELAY FOR MALFUNCTION •  Inspect the applicable part. (See RELAY INSPECTION.) •  Is the part normal?	Yes	Go to the next step.
		No	Repair or replace the malfunctioning location and perform the repair completion verification. (See RELAY LOCATION [(E)].)
7	PURPOSE: INSPECT EXHAUST ELECTRIC VARIABLE VALVE TIMING MOTOR FOR MALFUNCTION •  Inspect the applicable part. (See ELECTRIC VARIABLE VALVE TIMING MOTOR/DRIVER INSPECTION [SKYACTIV-X 2.0].) •  Is the part normal?	Yes	Go to the next step.
		No	Repair or replace the malfunctioning location and perform the repair completion verification. (See ELECTRIC VARIABLE VALVE TIMING MOTOR/DRIVER REMOVAL/INSTALLATION [SKYACTIV-X 2.0].)
8	PURPOSE: INSPECT EXHAUST ELECTRIC VARIABLE VALVE TIMING ACTUATOR FOR MALFUNCTION •  Inspect the applicable part. (See ELECTRIC VARIABLE VALVE TIMING MOTOR/DRIVER INSPECTION [SKYACTIV-X 2.0].) •  Is the part normal?	Yes	Go to the next step.
		No	Repair or replace the malfunctioning location and perform the repair completion verification. (See ELECTRIC VARIABLE VALVE TIMING ACTUATOR REMOVAL/INSTALLATION [SKYACTIV-X 2.0].)
9	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-X 2.0].) •  Is there any malfunction?	Yes	Repair or replace the malfunctioning part. Assemble the timing chain using the correct timing. (See TIMING CHAIN REMOVAL/INSTALLATION [SKYACTIV-X 2.0].) Go to repair completion verification.
		No	Go to the next step.
10	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-X 2.0].) •  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.
11	PURPOSE: VERIFY IF FOREIGN MATTER ON CKP SENSOR DETECTION AREA AFFECTS DIAGNOSTIC RESULTS •  Visually inspect for CKP sensor. (See CRANKSHAFT POSITION (CKP) SENSOR INSPECTION [SKYACTIV-X 2.0].) •  Is there foreign matter such as metallic dust on the CKP sensor detection area?	Yes	Remove the foreign matter 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. (See CONTROLLER AREA NETWORK (CAN) MALFUNCTION DIAGNOSIS FLOW [(E)].) 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-X 2.0].)
		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.