Chevrolet Sonic Repair Manual: Data and Communication Network

Generator Replacement (LUW)

Removal Procedure Disconnect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection. Raise and support the vehicle. Refer to Lifting and Jacking ...

Data Link Communications Description and Operation

Note: This is an overview of different serial data buses used by GM devices to communicate with each others. Use Data Communication Schematics to find out which serial data buses are configur ...

Other materials:

Starting Procedure
1. With your foot off the accelerator pedal, turn the ignition to START. When the engine cranks, let go of the key. The idle speed will go down as the engine gets warm. The vehicle has a Computer-Controlled Cranking System. It assists in starting the engine and protects components. If the ign ...

Interior Lighting Systems Description and Operation
Interior Lamps The interior lighting consist of two groups. This first group includes lamps that may not be dimmed. Dome/reading lamps Rear compartment courtesy lamp Dome Lamps When any door is opened, the associated door jamb switch closes providing a door ...

Cooling Fan Description and Operation (LWE, LUW)
System Overview The engine cooling fan system is composed of one cooling fan, 2 relays, the engine control module (ECM), and the associated wiring. The cooling fan assembly includes 1 resistor mounted in the cooling fan shroud. The cooling fan resistor may be a stand alone compon ...