DTC P02CB:00 [PCM (SKYACTIV-D 2.2)]

System malfunction location	Large-type turbocharger area control system: Charging deficiency
Detection condition	Determination condition	• As the result of comparing the actual boost pressure with the target boost pressure, the actual boost pressure is lower or more than the specification compared to the target boost pressure for a continuous 7 s.
	Preconditions	• All of the following conditions are met when diesel particulate filter regeneration control is stopped during boost control feedback ― Fuel injection amount: 20 mm³/st or more ― Engine speed: 2,000—6,000 rpm or more ― Battery positive voltage: 11 V or more ― Engine torque down request by G-vectoring control (GVC): Less than 25 Nm ― G-vectoring control (GVC) operation duration time: Less than 3 s ― Barometric pressure: 70—200 kPa ― Ambient temperature: -10—100 decrees C ― Engine coolant temperature: -10—120 °C ― Not during deceleration ― The following DTCs are not detected • ECT sensor: P0117:00, P0118:00 • IAT sensor No.1: P0112:00, P0113:00 • MAP sensor No.2: P0106:00, P0107:00, P0108:00 • BARO sensor: P2228:00, P2229:00 • MAF sensor: P0102:00, P0103:00 • Exhaust gas temperature sensor No.3: P242C:00, P242D:00 • Exhaust gas pressure sensor No.2: P2454:00, P2455:00 • CKP sensor: P0336:00, P0337:00 • Intake shutter valve position sensor: P0122:00, P0123:00 • Intake shutter valve control system: P1589:00, P2101:00, P2118:00 • Regulating valve actuator: P0045:00, P0046:00, P16A5:00 • Regulating valve actuator position sensor: P2564:00, P2565:00 • MAP sensor No.1: P0236:00, P0237:00, P0238:00 • Exhaust gas pressure sensor No.1: P0471:00, P0472:00, P0473:00 • Exhaust gas temperature sensor No.1: P0545:00, P0546:00 • Compressor bypass solenoid valve control system: P0034:00, P0035:00 • Constant voltage power supply control system: P0642:00, P0643:00 • MAP sensor No.2/BARO sensor: P0105:00 • Exhaust gas pressure sensor No.1: P0470:00 • Small-type turbocharger area control system: P0235:00 • Variable turbine geometry turbocharger actuator position sensor: P2588:00, P2589:00 • Turbocharger with variable turbine geometry: P004A:00, P004B:00, P16A6:00
	Drive cycle	• 2
	Self-test type	• CMDTC self test
	Sensor/unit used	• MAP sensor
Fail-safe	• Not applicable
Vehicle status when DTCs are output	• Not applicable
Possible cause	• PCM input signal error ― MAP sensor signal ― Input signal part connector or terminal malfunction ― Input signal part-related wiring harness malfunction • Bonnet insulator incorrect installation (intake air of engine is blocked due to improper positioning of bonnet insulator) • Air cleaner element clogging or dirt • Exhaust gas leakage from exhaust system • Air leakage from intake-air system • Malfunction in vacuum piping and positive pressure piping of compressor bypass solenoid valve • Variable turbine geometry turbocharger actuator malfunction • Compressor bypass solenoid valve malfunction • Variable turbine geometry turbocharger actuator position sensor malfunction • Turbocharger malfunction (large-type turbine, large-type compressor) • PCM malfunction

• The PCM diagnoses the large-type turbo system performance by comparing the target boost pressure with the actual.

• The PCM uses the manifold absolute pressure sensor to monitor the intake manifold pressure during boost control as the actual boost pressure.

• When the monitoring conditions are met during boost control, the PCM compares the target boost pressure with the actual. If the actual boost pressure is lower than the specification for the target boost pressure, the PCM determines a charging deficiency malfunction.

• The PCM performs diagnosis when each of the preconditions during drive cycle is met. If a malfunction is detected, the malfunction detection counter begins counting up. If it is normal, the counter begins counting down.

The value of the malfunction detection counter is maintained while the preconditions are not being met. If the cumulative value of the malfunction detection counter exceeds the threshold during the first drive cycle, a malfunction is determined and a pending code is stored.

• If the PCM determines that the malfunction recurs from the next drive cycle and thereafter, it stores a DTC.

1. Display PID MAP_DSD, INTK_MAPA, and REGVP using the M-MDS.

2. Start the engine and warm it up.

3. Accelerate in 2nd gear from 2,000 rpm to 4,500 rpm taking approx. 20 s.

4. Verify that the difference of more than 80 kPa does not continue for 3 s or more between the MAP_DSD and INTK_MAPA while accelerating with less than 5 mm of REGVP.

Item name	Outline	Unit	Display/condition
INTK_MAPA	Manifold absolute pressure (No.2)	kPa	• Displays the manifold absolute pressure (No.2).
MAP_DSD	Manifold absolute pressure (No.2) desired value	kPa	• Displays the manifold absolute pressure (No.2) desired value.
REGVP	Regulating valve actuator position	mm	• Idle: Approx. 19.02 mm
• Racing (engine speed: 3,500 rpm): Approx. 12.15 mm
VGTURB_ACT	Variable turbine geometry turbocharger actuator position	%	• Displays the variable turbine geometry turbocharger actuator position.

Item name	Outline	Unit	Display/condition
VGTURB_DSD	Variable turbine geometry turbocharger actuator position	%	• Changes % and forcibly drives/stops the variable turbine geometry turbocharger actuator.

Step	Inspection	Results	Action
1	PURPOSE: VERIFY DTC CAUSING FREEZE FRAME DATA • Is DTC P02CB:00 causing the freeze frame data?	Yes	Go to the next step.
1		No	Inspect the DTC causing the freeze frame data. (See DTC TABLE [PCM (SKYACTIV-D 2.2)])
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/snap shot data.	―	Go to the next step.
3	PURPOSE: 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 P02CB:00 been stored?	Yes	Repair the malfunctioning location according to the applicable DTC troubleshooting. (See DTC TABLE [PCM (SKYACTIV-D 2.2)])
3		No	Go to the next step.
4	PURPOSE: VERIFY MAP SENSOR INPUT SIGNAL • Start the engine and warm it up. • Display the following PIDs using the M-MDS. (See ON-BOARD DIAGNOSTIC TEST [PCM (SKYACTIV-D 2.2)]) ― MAP_DSD ― INTK_MAPA • Are the monitoring values normal?	Yes	Go to the troubleshooting procedure to perform the procedure from Step 1.
4		No	Go to the next step.
5	PURPOSE: INSPECT WIRING HARNESSES AND CONNECTORS FOR RELATED-SENSOR • Display the following PIDs using the M-MDS. (See ON-BOARD DIAGNOSTIC TEST [PCM (SKYACTIV-D 2.2)]) ― MAP_DSD ― INTK_MAPA • When the PCM and MAP sensor connector are shaken, does the PID value include a PID item which has changed?	Yes	Inspect the related wiring harnesses and connectors. • Repair or replace the malfunctioning location. Go to the troubleshooting procedure to perform the procedure from Step 7.
5		No	Go to the troubleshooting procedure to perform the procedure from Step 1.
6	PURPOSE: DETERMINE IF MALFUNCTION IS CAUSED BY VARIABLE TURBINE GEOMETRY TURBOCHARGER ACTUATOR POSITION SENSOR • Inspect the variable turbine geometry turbocharger actuator position sensor. (See VARIABLE TURBINE GEOMETRY TURBOCHARGER ACTUATOR POSITION SENSOR INSPECTION [SKYACTIV-D 2.2]) • Is the variable turbine geometry turbocharger actuator position sensor normal?	Yes	Go to the troubleshooting procedure to perform the procedure from Step 1.
6		No	Inspect the related wiring harnesses and connectors. • Repair or replace the malfunctioning location. Go to the troubleshooting procedure to perform the procedure from Step 7.

Step	Inspection	Results	Action
1	PURPOSE: VERIFY BONNET INSULATOR INSTALLATION CONDITION • Verify the bonnet insulator installation condition. • Is there looseness in the installation?	Yes	Repair the bonnet insulator installation, then go to Step 9. (Intake air of engine is blocked due to improper positioning of bonnet insulator.) (See BONNET DISASSEMBLY/ASSEMBLY.)
1		No	Repair or replace the malfunctioning location, then go to Step 9.
2	PURPOSE: INSPECT AIR CLEANER ELEMENT CONDITION • Visually inspect the air cleaner element. • Is there any clogging or dirt?	Yes	Clean or replace the air cleaner element, then go to Step 9.
2		No	Go to the next step.
3	PURPOSE: INSPECT FOR EXHAUST GAS LEAKAGE FROM EXHAUST SYSTEM • Visually inspect for exhaust gas leakage from exhaust system. • Is the intake air system normal?	Yes	Go to the next step.
3		No	Repair or replace the malfunctioning location, then go to Step 9.
4	PURPOSE: INSPECT INTAKE AIR SYSTEM FOR AIR SUCTION • Visually inspect the following intake air system for looseness or damage. ― Turbocharger and intake manifold • Is the intake air system normal?	Yes	Go to the next step.
4		No	Repair or replace the malfunctioning location, then go to Step 9.
5	PURPOSE: INSPECT VACUUM PIPING AND POSITIVE PRESSURE PIPING OF COMPRESSOR BYPASS SOLENOID VALVE • Inspect the vacuum piping and positive pressure piping of the compressor bypass solenoid valve. (See TURBOCHARGER REMOVAL/INSTALLATION [SKYACTIV-D 2.2].) • Is there hose leakage or damage in the vacuum piping and positive pressure piping?	Yes	Repair or replace the malfunctioning location, then go to Step 9.
5		No	Go to the next step.
6	PURPOSE: INSPECT COMPRESSOR BYPASS SOLENOID VALVE • Inspect the compressor bypass solenoid valve. (See COMPRESSOR BYPASS SOLENOID VALVE INSPECTION [SKYACTIV-D 2.2].) • Is the compressor bypass solenoid valve normal?	Yes	Go to the next step.
6		No	Replace the compressor bypass solenoid valve, then go to Step 9. (See COMPRESSOR BYPASS SOLENOID VALVE REMOVAL/INSTALLATION [SKYACTIV-D 2.2].)
7	PURPOSE: INSPECT VARIABLE TURBINE GEOMETRY TURBOCHARGER ACTUATOR • Inspect the variable turbine geometry turbocharger actuator. (See VARIABLE TURBINE GEOMETRY TURBOCHARGER ACTUATOR INSPECTION [SKYACTIV-D 2.2].) • Is the variable turbine geometry turbocharger actuator normal?	Yes	Go to the next step.
7		No	Replace the variable turbine geometry turbocharger actuator, then go to Step 9. (See TURBOCHARGER REMOVAL/INSTALLATION [SKYACTIV-D 2.2].)
8	PURPOSE: INSPECT TURBOCHARGER • Inspect the turbocharger. (See TURBOCHARGER INSPECTION [SKYACTIV-D 2.2].) • Is the turbocharger normal?	Yes	Go to the next step.
8		No	Replace the turbocharger, then go to the next step. (See TURBOCHARGER REMOVAL/INSTALLATION [SKYACTIV-D 2.2].)
9	PURPOSE: VERIFICATION OF VEHICLE REPAIR COMPLETION • Reconnect all disconnected connectors and hoses. • Refer to the [MEMORY CLEARING PROCEDURE] and clear the DTC. (See CLEARING DTC [PCM (SKYACTIV-D 2.2)].) • Implement the repeatability verification procedure. (See Repeatability Verification Procedure) • Display the DTCs using the M-MDS. (See ON-BOARD DIAGNOSTIC TEST [PCM (SKYACTIV-D 2.2)].) • Is DTC P02CB:00 displayed?	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].)
9		No	Go to the next step.
10	PURPOSE: VERIFY IF THERE IS ANY OTHER MALFUNCTION • 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)].)
10		No	DTC troubleshooting completed.