DTC P2104:00 [PCM (SKYACTIV-D 2.2)]

id0102j5711100

DTC P2104:00	Intake shutter valve control system: Idle restriction
DETECTION CONDITION	•  When the following conditions are met, the PCM determines that the exhaust gas pressure or boost pressure is the estimated value or more. ―  Ignition is switched ON (engine running) ―  Selector lever position: P or N position Diagnostic support note •  This is a continuous monitor (other). •  The check engine light does not illuminate. •  FREEZE FRAME DATA/Snapshot data is available. •  DTC is stored in the PCM memory.
FAIL-SAFE FUNCTION	•  Prevents a combustion pressure increase by closing the intake shutter valve.
POSSIBLE CAUSE	•  Over-supply of blow-by mist •  Oil suction into combustion chamber •  Fuel injector No.1 to No.4 malfunction •  Variable turbine geometry turbocharger actuator position sensor malfunction •  Variable turbine geometry turbocharger actuator malfunction •  Exhaust gas pressure sensor No.1 malfunction •  MAP sensor malfunction •  PCM malfunction
SYSTEM WIRING DIAGRAM	Not applicable

Diagnostic Procedure

Step	Inspection	Results	Action
1	RECORD VEHICLE STATUS WHEN DTC WAS DETECTED TO UTILIZE WITH REPEATABILITY VERIFICATION Note •  Recording can be facilitated using the screen capture function of the PC. •  Record the freeze frame data/snap shot data.	―	Go to the next step.
2	VERIFY OTHER RELATED DTCs •  Switch the ignition OFF, and then switch it ON (engine off). •  Display the DTCs using the M-MDS. (See ON-BOARD DIAGNOSTIC TEST [PCM (SKYACTIV-D 2.2)].) •  Has any DTC other than P2104:00 been stored?	Yes	Repair the malfunctioning location according to the applicable DTC troubleshooting. (See DTC TABLE [PCM (SKYACTIV-D 2.2)].)
		No	Go to the next step.
3	DETERMINE IF MALFUNCTION IS CAUSED BY TURBOCHARGER WITH VARIABLE TURBINE GEOMETRY •  Switch the ignition OFF. •  Switch the ignition ON (engine on). •  Display PID VGTURB_ACT and simulation item VGTURB_DSD using the M-MDS. (See ON-BOARD DIAGNOSTIC TEST [PCM (SKYACTIV-D 2.2)].) •  Operate the turbocharger with variable geometry using the simulation item VGTURB_DSD. •  Does PID VGTURB_ACT change according to the simulation operation.	Yes	Go to Step 6.
		No	Go to the next step.
4	INSPECT VARIABLE TURBINE GEOMETRY TURBOCHARGER ACTUATOR •  Inspect the variable turbine geometry turbocharger actuator. (See VARIABLE TURBINE GEOMETRY TURBOCHARGER ACTUATOR POSITION SENSOR INSPECTION [SKYACTIV-D 2.2].) •  Is the variable turbine geometry turbocharger actuator normal?	Yes	Go to the next step.
		No	Replace the variable turbine geometry turbocharger actuator, then go to Step 9. (See VARIABLE TURBINE GEOMETRY TURBOCHARGER ACTUATOR POSITION SENSOR REMOVAL/INSTALLATION [SKYACTIV-D 2.2].)
5	DETERMINE IF MALFUNCTION IS CAUSED BY TURBOCHARGER WITH VARIABLE TURBINE GEOMETRY •  Switch the ignition OFF. •  Switch the ignition ON (engine on). •  Display PID VGTURB_ACT and simulation item VGTURB_DSD using the M-MDS. (See ON-BOARD DIAGNOSTIC TEST [PCM (SKYACTIV-D 2.2)].) •  Operate the turbocharger with variable geometry using the simulation item VGTURB_DSD. •  Does PID VGTURB_ACT change according to the simulation operation.	Yes	Go to the next step.
		No	Replace the turbocharger, then go to Step 9. (See TURBOCHARGER REMOVAL/INSTALLATION [SKYACTIV-D 2.2].)
6	INSPECT ENGINE COMPRESSION PRESSURE •  Inspect the engine compression pressure. (See COMPRESSION INSPECTION [SKYACTIV-D 2.2].) •  Is the engine compression pressure normal?	Yes	Go to the next step.
		No	Repair or replace the malfunctioning location, then go to the next step.
7	INSPECT MAP SENSOR •  Reconnect all the disconnected connectors. •  Inspect the MAP sensor. (See MANIFOLD ABSOLUTE PRESSURE (MAP) SENSOR INSPECTION [SKYACTIV-D 2.2].) •  Is the MAP sensor normal?	Yes	Go to the next step.
		No	Replace the MAP sensor, then go to the next step. (See MANIFOLD ABSOLUTE PRESSURE (MAP) SENSOR REMOVAL/INSTALLATION [SKYACTIV-D 2.2].)
8	INSPECT EXHAUST GAS PRESSURE SENSOR NO.1 •  Reconnect all the disconnected connectors. •  Inspect exhaust gas pressure sensor No.1. (See EXHAUST GAS PRESSURE SENSOR INSPECTION [SKYACTIV-D 2.2].) •  Is exhaust gas pressure sensor No.1 normal?	Yes	Go to the next step.
		No	Replace exhaust gas pressure sensor No.1, then go to the next step. (See EXHAUST GAS PRESSURE SENSOR REMOVAL/INSTALLATION [SKYACTIV-D 2.2].)
9	PERFORM COMPULSORY diesel particulate filter REGENERATION AND BURN OUT ENGINE OIL IN diesel particulate filter •  Perform compulsory diesel particulate filter regeneration. (See COMPULSORY DIESEL PARTICULATE FILTER REGENERATION [SKYACTIV-D 2.2].) Note •  When a DTC is stored, compulsory diesel particulate filter regeneration may be restricted by the PCM control. (See ON-BOARD DIAGNOSTIC TEST [PCM (SKYACTIV-D 2.2)].) ―  When a high quantity of soot has accumulated in the diesel particulate filter and the PCM has stored DTC P242F:00, compulsory diesel particulate filter regeneration cannot be implemented. •  Perform applicable DTC troubleshooting then perform compulsory diesel particulate filter regeneration. (See COMPULSORY DIESEL PARTICULATE FILTER REGENERATION [SKYACTIV-D 2.2].)	―	Go to the next step.
10	VERIFY ENGINE OIL LEVEL •  Verify the engine oil level. (See ENGINE OIL LEVEL INSPECTION [SKYACTIV-D 2.2].) •  Is the oil level above the X on the gauge?	Yes	Replace the engine oil. (See ENGINE OIL SOLENOID VALVE REMOVAL/INSTALLATION [SKYACTIV-D 2.2].) Implement the engine oil data reset procedure. (See ENGINE OIL DATA RESET [SKYACTIV-D 2.2].) Go to the next step.
		No	Go to the next step.
11	VERIFY THAT REPAIRS HAVE BEEN COMPLETED •  Reconnect all disconnected connectors and hoses. •  Refer to the [MEMORY CLEARING PROCEDURE] and clear the DTC. Clear the DTC. (See CLEARING DTC [PCM (SKYACTIV-D 2.2)].) •  Start the engine and drive the vehicle under the freeze frame data/snapshot data condition. Warning •  To prevent an accident, have one person drive the vehicle while another performs the MMDS operation. •  Observe legal speed limits when driving the vehicle and perform the procedure in a location where safety can be assured. •  Display the DTCs using the M-MDS. (See ON-BOARD DIAGNOSTIC TEST [PCM (SKYACTIV-D 2.2)].) •  Has DTC P2104:00 been recorded?	Yes	Repeat the inspection from Step 1. •  If the malfunction recurs, replace the PCM, then go to the next step. (See PCM REMOVAL/INSTALLATION [SKYACTIV-D 2.2].)
		No	Go to the next step.
12	VERIFY OTHER DTCs •  Has any other DTC or pending code been stored?	Yes	Repair the malfunctioning location according to the applicable DTC troubleshooting. (See DTC TABLE [PCM (SKYACTIV-D 2.2)].)
		No	DTC troubleshooting completed.