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2016
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Suburban 3500 HD LT
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Repair and Diagnosis
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Transmission
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Transfer Case
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Transfer Case - Mp 3023/3024 (NQH) - Diagnostic Information And Procedures
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Diagnostic Information and Procedures
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DTC B0770: AWD Indicator
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Circuit/System Verification
Circuit/System Verification
Key ON, engine OFF. The TCCM runs a 2 second bulb test on all indicators of the TCSCS at key ON.