|
|
Content .. 1787 1788 1789 1790 ..
should not be used in the STUD 1 Fuse 70 position of the underhood fuse block, if the vehicle is Instrument Panel Cluster (IPC) Operation Charge Indicator Operation The instrument panel cluster (IPC) illuminates the charge indicator and displays a warning The engine control module (ECM) detects that the generator output is less than 11 volts or The BCM determines that the system voltage is less than 11 volts or greater than 16 volts. The IPC receives a GMLAN message from the body control module (BCM) indicating there The IPC performs the displays test at the start of each ignition cycle. The indicator The ignition is ON, with the engine OFF. Battery Voltage Gauge Operation The IPC displays the system voltage as received from the BCM over the GMLAN serial data This vehicle is equipped with a regulated voltage control (RVC) system. This system turns off the SERVICE BATTERY CHARGING SYSTEM The BCM and the ECM will send a GMLAN message to the DIC for the SERVICE BATTERY
2008 Chevrolet Silverado 1500 2008 ENGINE Engine Electrical - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
ELECTRICAL POWER MANAGEMENT DESCRIPTION AND OPERATION Electrical Power Management The electrical power management (EPM) is used to monitor and control the charging system and The idle boost operation is a means of improving generator performance during a low voltage or Idle boost is activated in incremental steps, idle boost 1 must be active before idle boost 2 can be Function Battery Temperature Calculation Battery Voltage Calculation Amp-hour Calculation Action Taken Idle Boost 1 Start Less Than -15°C (+5°F) Less Than 13 V - First level idle boost requested Idle Boost 1 Start - - Battery has a net loss greater than 0.6 AH First level idle boost requested Idle Boost 1 Start - Less Than 10.9 V - First level idle boost requested Idle Boost 1 End Greater Than -10° C (+5°F) Greater Than 12 V Battery has a net AH First level idle boost request cancelled Idle Boost 2 Start - - Battery has a net loss greater than 1.6 AH Second level idle boost requested Idle Boost 2 Start - Less Than 10.9 V - Second level idle boost requested Idle Boost 2 End - Greater Than 12 V Battery has a net AH Second level idle boost request cancelled Idle Boost 3 Start - - Battery has a net loss of 10.0 AH Third level idle Idle Boost 3 - Less Than 10.9 V - Third level idle
2008 Chevrolet Silverado 1500 2008 ENGINE Engine Electrical - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
STARTING SYSTEM DESCRIPTION AND OPERATION The starter motors are non-repairable starter motors. They have pole pieces that are arranged As soon as the solenoid switch contacts close, current stops flowing thorough the pull-in winding When the ignition switch is released from the START position, the START relay opens and The magnetic fields of the pull-in and hold-in windings now oppose one another. This action of Circuit Description (Key Start) When the ignition switch is placed in the Start position, a discrete 12-volt signal is supplied to the Start boost requested Idle Boost 3 End - Greater Than 12 V Battery has a net loss of less than 6 AH Third level idle boost request cancelled
2008 Chevrolet Silverado 1500 2008 ENGINE Engine Electrical - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
SPECIAL TOOLS AND EQUIPMENT SPECIAL TOOLS Illustration Tool Number/Description J 38758 Parasitic Draw Test Switch J 41450-B Universal CS Generator Tester Harness J 42000 Battery Tester
2008 Chevrolet Silverado 1500 2008 ENGINE Engine Electrical - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
Content .. 1787 1788 1789 1790 ..
|
|
|