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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 B0775 >> Circuit/System Verification

Circuit/System Verification

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Key ON, engine OFF. The TCCM runs a 2 second bulb test on all indicators of the TCSCS at key ON.