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Home >> Chevrolet >> 2012 >> Suburban C1500 >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 2 (Transfer Case - Mp 3023/3024 (NQH)) >> Diagnostic Information and Procedures >> DTC C0397 >> Circuit/System Verification

Circuit/System Verification

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  1. Ignition ON, engine OFF.
  2. Install a scan tool.
  3. Ensure no other ECBM or TCCM codes are set.
    • If any other EBCM or TCCM DTC's are set, diagnose them first.
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