DTC P2006

DTC P2006	Variable tumble shutter valve stuck closed
DETECTION CONDITION	The PCM monitors mass the variable tumble shutter valve position using the variable tumble shutter valve switch. If the PCM turns the variable tumble solenoid valve off but the variable tumble shutter valve position still remain close (variable tumble shutter valve switch on), the PCM determines that the variable tumble shutter valve has been stuck closed. Diagnostic support note This is a continuous monitor (CCM). The MIL illuminates if the PCM detects above malfunction condition in two consecutive drive cycles or in one drive cycle while DTC for the same malfunction has been stored in PCM. PENDING CODE is available if the PCM detects the above malfunction condition during the first drive cycle. FREEZE FRAME DATA (Mode 2/Mode 12) is available. The DTC is stored in the PCM memory.
POSSIBLE CAUSE	Variable tumble shutter valve actuator malfunction (stuck closed) Variable tumble shutter valve switch malfunction Variable tumble shutter valve malfunction (stuck closed) Variable tumble solenoid valve malfunction Variable tumble solenoid valve connector or terminals malfunction Variable tumble shutter valve switch connector or terminals malfunction Short to ground in wiring harness between variable tumble solenoid valve terminal B and PCM terminal 2I Short to ground in wiring harness between variable tumble shutter valve switch terminal A and PCM terminal 2AE PCM connector or terminals malfunction PCM malfunction

DIAGNOSTIC PROCEDURE

STEP	INSPECTION		ACTION
1	VERIFY FREEZE FRAME DATA (MODE 12) HAS BEEN RECORDED Has the FREEZE FRAME DATA (Mode 12) been recorded?	Yes	Go to the next step.
1		No	Record the FREEZE FRAME DATA (Mode 12) on repair order, then go to the next step.
2	VERIFY RELATED SERVICE BULLETINS AVAILABILITY Verify related Service Bulletins availability. Is any related Service Bulletins available?	Yes	Perform the repair or diagnosis according to the available Service Bulletins. If the vehicle is not repaired, go to the next step.
2		No	Go to the next step.
3	CLASSIFY INTERMITTENT CONCERN OR CONTINUOUS CONCERN Clear the DTC from the PCM memory using the M-MDS. Drive the vehicle under the following conditions: Engine coolant temperature: below 63°C {145°F} Engine speed: below 3, 750 rpm Throttle opening angle is below as followings: Engine speed below 1, 500 rpm: above 35% Engine speed between 1, 500-2, 500 rpm: between 25-35% Engine speed above 2, 500 rpm: below 25% Is the PENDING CODE for this DTC present?	Yes	Go to the next step.
3		No	Intermittent concern exists. Perform the "INTERMITTENT CONCERN TROUBLESHOOTING" procedure. (See INTERMITTENT CONCERN TROUBLESHOOTING ).
4	INSPECT VARIABLE TUMBLE SHUTTER VALVE ACTUATOR Turn the ignition switch off. Perform the Variable Tumble Control Operation Inspection. (See ENGINE CONTROL SYSTEM OPERATION INSPECTION ). Is there any malfunction?	Yes	Replace the variable tumble shutter valve actuator, then go to Step 11. (See VARIABLE INTAKE AIR SHUTTER VALVE ACTUATOR REMOVAL/INSTALLATION ).
4		No	Go to the next step.
5	INSPECT VARIABLE TUMBLE SHUTTER VALVE SWITCH Inspect the variable tumble shutter valve switch. (See VARIABLE TUMBLE SHUTTER VALVE SWITCH INSPECTION ). Is there any malfunction?	Yes	Replace the variable tumble shutter valve switch, then go to Step 11. (See VARIABLE TUMBLE SHUTTER VALVE SWITCH REMOVAL/INSTALLATION ).
5		No	Go to the next step.
6	INSPECT VARIABLE TUMBLE SOLENOID VALVE Inspect the variable tumble solenoid valve for Airflow Inspection. (See VARIABLE TUMBLE SOLENOID VALVE INSPECTION ). Is there any malfunction?	Yes	Replace the variable tumble solenoid valve, then go to Step 11. (See VARIABLE TUMBLE SOLENOID VALVE REMOVAL/INSTALLATION ).
6		No	Go to the next step.
7	INSPECT VARIABLE TUMBLE SOLENOID VALVE CONNECTOR AND TERMINALS Disconnect the variable tumble solenoid valve connector. Inspect for poor connection (such as damaged/pulled-out pins, and corrosion). Is there any malfunction?	Yes	Repair or replace the connector or terminals, then go to Step 11.
7		No	Go to the next step.
8	INSPECT VARIABLE TUMBLE SHUTTER VALVE SWITCH CONNECTOR AND TERMINALS Disconnect the variable tumble shutter valve switch connector. Inspect for poor connection (such as damaged/pulled-out pins, and corrosion). Is there any malfunction?	Yes	Repair or replace the connector or terminals, then go to Step 11.
8		No	Go to the next step.
9	INSPECT VARIABLE TUMBLE SOLENOID VALVE SIGNAL CIRCUIT AND VARIABLE TUMBLE SHUTTER VALVE SWITCH SIGNAL CIRCUIT FOR SHORT TO GROUND Variable tumble solenoid valve and variable tumble shutter valve switch are disconnected. Inspect for continuity between the following terminals (wiring harness-side) and body ground: Variable tumble solenoid valve terminal B Variable tumble shutter valve switch terminal A Is there continuity?	Yes	If the short to ground circuit could be detected: Repair or replace the wiring harness for a possible short to ground. If the short to ground circuit could not be detected: Replace the PCM (short to ground in PCM internal circuit). (See PCM REMOVAL/INSTALLATION ). Go to Step 11.
9		No	Go to the next step.
10	INSPECT PCM CONNECTOR AND TERMINALS Disconnect the PCM connector. Inspect for poor connection (such as damaged/pulled-out pins, and corrosion). Is there any malfunction?	Yes	Repair or replace the connector or terminals, then go to the next step.
10		No	Go to the next step.
11	VERIFY TROUBLESHOOTING OF DTC P2006 COMPLETED Make sure to reconnect all disconnected connectors. Clear the DTC from the PCM memory using the M-MDS. Start the engine. Drive the vehicle under the following conditions or perform the KOER self test Engine coolant temperature: below 63°C {145°F} Engine speed: below 3, 750 rpm Throttle opening angle is below as followings: Engine speed below 1, 500 rpm: above 35% Engine speed between 1, 500-2, 500 rpm: between 25-35% Engine speed above 2, 500 rpm: below 25% Retrieve the DTC using the M-MDS. Is the PENDING CODE for this DTC present?	Yes	Replace the PCM, then go to the next step. (See PCM REMOVAL/INSTALLATION ).
11		No	Go to the next step.
12	VERIFY AFTER REPAIR PROCEDURE Perform the "AFTER REPAIR PROCEDURE". (See AFTER REPAIR PROCEDURE ). Are any DTCs present?	Yes	Go to the applicable DTC inspection. (See DTC TABLE ).
12		No	DTC troubleshooting completed.