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Electrical Information Reference Circuit Testing Connector Repairs Testing for Intermittent Conditions and Poor Connections Wiring Repairs Scan Tool Reference Control Module References for scan tool information Circuit/System Verification Engine running, observe the GEN-F Terminal Signal parameter in the ECM data list. The Circuit/System Testing 1. Ignition OFF, disconnect the harness connector at the generator. 2. Ignition ON, engine OFF, connect a test lamp to B+ and repeatedly probe the generator field duty cycle circuit terminal 2, while monitoring the GEN-F Terminal Signal Parameter. If the parameter was not affected by the test lamp, test the circuit for a short to voltage, 3. If the circuit tests normal, test or replace the generator. Repair Procedures Perform the Diagnostic Repair Verification after completing the diagnostic procedure. Generator Replacement (4.3L) or Generator Replacement (4.8L, 5.3L, 6.0L, and Control Module References for ECM replacement, setup, and programming SYMPTOMS - ENGINE ELECTRICAL IMPORTANT: The following steps must be completed before using the symptom tables.
2008 Chevrolet Silverado 1500 2008 ENGINE Engine Electrical - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
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