DTC P2006 [L3]

BME010202000W01

DTC P2006

VTCS shutter valve stuck closed

DETECTION CONDITION

• PCM monitors mass air amount. If actual air flow amount is below estimated air flow amount when the following monitoring conditions are met. PCM determines that VTCS shutter valve is stuck closed.
MONITORING CONDITIONS
- Engine speed is above 3,750 rpm.
- Engine coolant temperature is above 70 °C {158 °F}.
- Throttle valve opening angle is above threshold*.

*: Maximum calculated load valve varies depending on engine speed

Diagnostic support note
• This is a continuous monitor (CCM).
• MIL illuminates if PCM detects the above malfunction condition in two consecutive drive cycles or in one drive cycle while the DTC for the same malfunction has been stored in the PCM.
• PENDING CODE is available if PCM detects the above malfunction condition during first drive cycle.
• FREEZE FRAME DATA is available.
• DTC is stored in PCM memory.

POSSIBLE CAUSE

• ECT sensor malfunction
• MAF sensor malfunction
• IAT sensor malfunction
• EGR boost sensor malfunction
• TP sensor malfunction
• CKP sensor malfunction
• Variable tumble control solenoid valve malfunction
• VTCS shutter valve malfunction (stuck closed)
• VTCS shutter valve actuator malfunction (stuck closed).
• Short to ground circuit between variable tumble control solenoid valve terminal B and PCM terminal 4T
• PCM malfunction

Diagnostic procedure

STEP

INSPECTION

ACTION

1
VERIFY FREEZE FRAME DATA HAS BEEN RECORDED
• Has FREEZE FRAME DATA been recorded?
Yes
Go to next step.
No
Record FREEZE FRAME DATA on repair order, then go to next step.
2
VERIFY RELATED SERVICE INFORMATION AVAILABILITY
• Check for related Service Information availability.
• Is any related Service Information available?
Yes
Perform repair or diagnosis according to available Service Information.
• If vehicle is not repaired, go to next step.
No
Go to next step.
3
CLASSIFY INTERMITTENT CONCERN OR CONTINUOUS CONCERN
• Clear DTC from PCM memory using WDS or equipment.
• Drive vehicle under following conditions:
- Engine speed: below 3,500 rpm
- Throttle opening angle is as follows:
• Below 1,500 rpm: 35%
• Between 1,500 - 2,500 rpm: 25-35%
• Above 2,500 rpm: 25%
• Is PENDING CODE of same DTC present?
Yes
Go to next step.
No
Intermittent concern exists. Go to INTERMITTENT CONCERN TROUBLESHOOTING procedure.
4
VERIFY STORED OTHER DTCS
• Verify stored DTCs using WDS or equipment.
• Is any other DTC present except P1512?
Yes
Go to appropriate DTC troubleshooting procedures.
No
Go to next step.
5
INSPECT VTCS SHUTTER VALVE ACTUATOR
• Carry out "variable tumble control operation inspection"
• Is VTCS shutter valve actuator okay?
Yes
Go to next step.
No
Replace VTCS shutter valve actuator, then go to Step 8.
6
INSPECT VARIABLE TUMBLE CONTROL SOLENOID VALVE
• Carry out "variable tumble control solenoid valve airflow inspection"
• Is variable tumble control solenoid valve okay?
Yes
Go to next step.
No
Replace variable tumble control solenoid valve, then go to Step 8.
7
INSPECT PCM FOR POOR CONNECTION
• Inspect for poor connection at PCM terminal 4T (damaged/pulled-out terminals, corrosion, etc.).
• Is there any malfunction?
Yes
Repair terminal, then go to next step.
No
Go to next step.
8
VERIFY TROUBLESHOOTING OF DTC P2006 COMPLETED
• Make sure to reconnect all disconnected connectors.
• Start engine.
• Clear DTC from PCM memory using WDS or equipment.
• Start engine.
• Drive vehicle under following conditions:
- Engine speed: below 3,500 rpm
- Throttle opening angle is as follows:
• Below 1,500 rpm: 35%
• Between 1,500 - 2,500 rpm: 25-35%
• Above 2,500 rpm: 25%
• Is PENDING CODE of same DTC present?
Yes
Replace PCM, then go to next step.
No
Go to next step.
9
VERIFY AFTER REPAIR PROCEDURE
• Perform "After Repair Procedure".
• Is there any DTC present?
Yes
Go to applicable DTC troubleshooting.
No
Troubleshooting completed.