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Conditions for Running the DTC The vehicle speed is greater than 8 km/h (5 mph). The system voltage is between 9.5-18 volts. Conditions for Setting the DTC The ECM detects a system voltage less than 10 volts for 5 seconds. Action Taken When the DTC Sets The ECM will command the charge indicator to be illuminated on the instrument panel The ECM will not illuminate the malfunction indicator lamp (MIL). The ECM will store conditions, which were present when the DTC set as Fail Records data Conditions for Clearing the DTC The ECM will command the message OFF after one trip in which the diagnostic test has The history DTC will clear after 40 consecutive warm-up cycles have occurred without a Diagnostic Aids A low voltage DTC in multiple modules indicates a concern in the charging system. Inspect the ECM gound connection G106 (4.3L LU3) or G103 (all other engines) to insure Reference Information Schematic Reference Starting and Charging Schematics Engine Controls Schematics 4.3L (LU3) Engine Controls Schematics 6.6L (LMM) Engine Controls Schematics all other engines (w/o LU3 or LMM) Connector End View Reference
2008 Chevrolet Silverado 1500 2008 ENGINE Engine Electrical - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
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