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Home >> Mazda >> 2007 >> 6 Mazdaspeed >> Repair and Diagnosis >> Engine Performance >> System >> On-Board Diagnostic [Engine Control System L3 With TC] >> DTC P2009 >> Diagnostic procedure
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Diagnostic procedure

DTC P2009 DIAGNOSTIC PROCEDURE

STEP INSPECTION ACTION
1 VERIFY FREEZE FRAME DATA HAS BEEN RECORDED 
  • Has the FREEZE FRAME DATA been recorded?
 Yes Go to the next step.
No Record FREEZE FRAME DATA on the repair order, then go to the next step.
2 VERIFY RELATED REPAIR INFORMATION AVAILABILITY 
  • Check for related Service Bulletins and/or online repair information availability.
  • Is any related repair information available?
 Yes Perform the repair or diagnosis according to the available repair information.
  • If the vehicle is not repaired, go to the next step.
No Go to the next step.
3 INSPECT VARIABLE SWIRL 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 9.
No Go to the next step.
4 INSPECT VARIABLE SWIRL SOLENOID VALVE 
 Yes Go to the next step.
No Replace the variable swirl solenoid valve, then go to Step 9.
5 INSPECT VARIABLE SWIRL SOLENOID VALVE POWER SUPPLY CIRCUIT FOR OPEN CIRCUIT 
  • Disconnect the variable swirl solenoid valve connector.
  • Turn ignition switch to the ON position (Engine off).
  • Measure voltage between variable swirl solenoid valve terminal A (harness-side) and body ground.
  • Is the voltage B+  ?
 Yes Go to the next step.
No Repair or replace the wiring harness for an open circuit, then go to Step 9.
6 INSPECT PCM CONNECTOR FOR POOR CONNECTION 
  • Turn the ignition switch off.
  • Disconnect the PCM connector.
  • Inspect for poor connection at PCM terminal 4K. (such as damaged, pulled-out pins, corrosion).
  • Is there any malfunction?
 Yes Repair terminal, then go to Step 9.
No Go to the next step.
7 INSPECT VARIABLE SWIRL SOLENOID VALVE CONTROL CIRCUIT FOR SHORT TO GROUND 
  • Inspect for continuity between variable swirl solenoid valve terminal B (harness-side) and body ground.
  • Is there continuity?
 Yes Repair or replace the wiring harness for a short to ground, then go to Step 9.
No Go to the next step.
8 INSPECT VARIABLE SWIRL SOLENOID VALVE CONTROL CIRCUIT FOR OPEN CIRCUIT 
  • Connect variable swirl solenoid valve connector.
  • Turn ignition switch to the ON position (Engine off).
  • Measure the voltage between PCM terminal 4K (harness-side) and body ground.
  • Is the voltage B+  ?
 Yes Go to the next step.
No Repair or replace the wiring harness for an open or short to ground circuit, then go to the next step.
9 VERIFY TROUBLESHOOTING OF DTC P2009 COMPLETED 
  • Make sure to reconnect all disconnected connectors.
  • Clear the DTC from the PCM memory using the WDS or equivalent.
  • Turn the ignition switch off.
  • Start the engine and warm it up completely.
  • Is the PENDING CODE for this DTC present?
 Yes Replace the PCM, then go to the next step.
(See PCM REMOVAL/INSTALLATION ).
No Go to the next step.
10 VERIFY AFTER REPAIR PROCEDURE 
 Yes Go to the applicable DTC inspection.
(See DTC TABLE ).
No Troubleshooting completed.
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