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Home >> Hummer >> 2008 >> H2 4D Utility Wagon >> Repair and Diagnosis >> External Pages >> Different car >> Section 338 (Transfer Case - Mp 3023/3024-NQH) >> Diagnostic Information and Procedures >> DTC C0398 >> Circuit/System Verification

Circuit/System Verification

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  1. Key ON, engine OFF.
  2. Connect a scan tool.
  3. Monitor the IPS and RPS parameters on the scan tool. Using the transfer case shift control switch, shift the transfer case into all modes. The IPS and RPS parameters should track each other.
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