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Home >> Buick >> 2018 >> Regal Base >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 8 (Power Transfer Unit/Transfer Case - AAM) >> Diagnostic Information and Procedures >> Symptoms - Power Transfer Unit Case >> Strategy Based Diagnostics

Strategy Based Diagnostics

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Review the system operations in order to familiarize yourself with the system functions. Refer to Power Transfer Unit Case Disassembled View , Power Transfer Unit Case Description and Operation , and Rear Drive Axle Description and Operation . All diagnosis on a vehicle should follow a logical process. Strategy based diagnostics is a uniform approach for repairing all systems. The diagnostic flow may always be used in order to resolve a system condition. The diagnostic flow is the place to start when repairs are necessary. For a detailed explanation, refer to Strategy Based Diagnosis .

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