DTC P2009 [L3]

BME010202000202

DTC P2009

Variable tumble control solenoid valve circuit low input

DETECTION CONDITION

• The PCM monitors variable tumble control solenoid valve control signal at PCM terminal 4T. If the PCM turns variable tumble control solenoid valve off but voltage at PCM terminal 4T still remains low, the PCM determines that the variable tumble control solenoid valve circuit has malfunction.
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

• Poor connection of connectors at PCM and/or variable tumble control solenoid valve
• Short to ground in wiring between variable tumble control solenoid valve terminal B and PCM terminal 4T
• Open circuit in wiring between main relay and variable tumble control solenoid valve terminal A
• Open circuit in wiring between variable tumble control solenoid valve terminal B and PCM terminal 4T
• Variable tumble control solenoid valve malfunction
• PCM malfunction

Diagnostic procedure

STEP

INSPECTION

ACTION

1
PERFORM DTC CONFIRMATION PROCEDURE
• Perform DTC CONFIRMATION PROCEDURE.
• Is same DTC present?
Yes
Go to the next step.
No
Intermittent concern exists. Go to INTERMITTENT CONCERN TROUBLESHOOTING procedure.
2
INSPECT VARIABLE TUMBLE CONTROL SOLENOID VALVE CONNECTOR FOR POOR CONNECTION
• Turn the ignition switch off.
• Inspect for poor connection (such as damaged/pulled-out pins, corrosion).
• Is there any malfunction?
Yes
Repair or replace the terminal, then go to Step 8.
No
Go to the next step.
3
INSPECT VARIABLE TUMBLE CONTROL SOLENOID VALVE
• Perform variable tumble control solenoid valve inspection.
• Is the variable tumble control solenoid valve normal?
Yes
Go to the next step.
No
Replace the variable tumble control solenoid valve, then go to Step 8.
4
INSPECT VARIABLE TUMBLE CONTROL SOLENOID VALVE POWER SUPPLY CIRCUIT FOR OPEN CIRCUIT
• Disconnect variable tumble control solenoid valve connector.
• Turn the ignition switch to the ON position (Engine off).
• Measure the voltage between variable tumble control solenoid valve terminal A (wiring harness-side) and body ground.
• Is the voltage B+?
Yes
Go to the next step.
No
Repair or replace the wiring harness for open circuit, then go to Step 8.
5
INSPECT PCM CONNECTOR FOR POOR CONNECTION
• Turn the ignition switch off.
• Disconnect the PCM connector.
• Inspect for poor connection at PCM terminal 4T (such as damaged/pulled-out pins, corrosion).
• Is there any malfunction?
Yes
Repair the terminal, then go to Step 8.
No
Go to the next step.
6
INSPECT VARIABLE TUMBLE CONTROL SOLENOID VALVE CONTROL CIRCUIT FOR SHORT TO GROUND
• Inspect for continuity between variable tumble control solenoid valve terminal B (wiring harness-side) and body ground.
• Is there continuity?
Yes
Repair or replace the wiring harness for short to ground, then go to Step 8.
No
Go to the next step.
7
INSPECT VARIABLE TUMBLE CONTROL SOLENOID VALVE CONTROL CIRCUIT FOR OPEN CIRCUIT
• Connect variable tumble control solenoid valve connector.
• Turn the ignition switch to the ON position (Engine off).
• Measure the voltage between PCM terminal 4T (wiring harness side) and body ground.
• Is the voltage B+?
Yes
Go to the next step.
No
Repair or replace the wiring harness for open or short to ground circuit, then go to the next step.
8
VERIFY TROUBLESHOOTING OF DTC P2009 COMPLETED
• Make sure to reconnect all disconnected connectors.
• Clear the DTC from the PCM memory using the WDS or equipment.
• Perform KOEO/KOER self-test.
• Is the same DTC present?
Yes
Replace the PCM, then go to the next step.
No
Go to the next step.
9
VERIFY AFTER REPAIR PROCEDURE
• Perform "After Repair Procedure".
• Is there any DTC present?
Yes
Go to the applicable DTC inspection.
No
Troubleshooting completed.