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Home >> Suzuki >> 2011 >> Grand Vitara Limited, RWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System Diagnosis >> Diagnostic Information and Procedures >> DTC P2004: Intake Open Manifold Runner Control Stuck ; P2006: Intake Manifold Runner Control Stuck Closed >> DTC Troubleshooting
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DTC Troubleshooting

P2004, P2006 DIAGNOSIS PROCEDURE

Step Action YES NO
1  Was "Engine and Emission Control System Check" performed?  Go to Step 2. Go to ENGINE AND EMISSION CONTROL SYSTEM CHECK:J24B .
2  DTC check 
  1. Check DTC.

Is there DTC(s) other than P2004 and P2006? 		 Go to applicable DTC (s). Go to Step 3.
3  IMRC valve motor drive circuit (open) and IMRC valve motor drive circuit (close) check 
  1. Turn OFF ignition switch and disconnect connectors from IMRC valve actuator and ECM.
  2. Check for proper terminal connection to IMRC valve actuator connector and ECM connectors.
  3. If connections are OK, check that IMRC valve motor drive circuit (open) (A1) and IMRC valve motor drive circuit (close) (A2) are as follows.
    • Wiring harness resistance of IMRC valve motor drive circuit (open) and IMRC valve motor drive circuit (close) is less than 3 Ω.
    • Insulation resistance between IMRC valve motor drive circuit (open) and vehicle body ground is infinity.
    • Insulation resistance between IMRC valve motor (close) and vehicle body ground is infinity.
    • Insulation resistance of wire harness is infinity between IMRC valve motor drive circuit (open) terminal and each terminal at IMRC valve actuator connector.
    • Insulation resistance of wire harness is infinity between IMRC valve motor drive circuit (close) terminal and each terminal at IMRC valve actuator connector.
    • Circuit voltage of each IMRC valve motor drive circuit (open) and IMRC valve motor drive circuit (close) is 0 - 1 V with ignition switch in ON position.

Are they in good condition? 		 Go to Step 4. Repair or replace defective wire harness.
4  IMRC valve and IMRC valve actuator check 
  1. Check IMRC valve and IMRC valve actuator, see IMRC (INTAKE MANIFOLD RUNNER CONTROL) VALVE INSPECTION .

Is it in good condition? 		 Substitute a known-good ECM and recheck. Replace IMRC valve, see INTAKE MANIFOLD REMOVAL AND INSTALLATION .
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