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:

Hood Ajar Indicator Description and Operation
Hood Ajar Switch The body control module (BCM) applies B+ to the hood ajar signal circuit and monitors the voltage to determine the position of the hood. When the hood is closed, the switch is open and voltage remains high. When the hood is open, the switch is closed and the voltag ...

Tire and Wheel Balancing (Balancing/Wheel Weights)
Use 3M wheel weights, refer to Adhesives, Fluids, Lubricants, and Sealers for application. Surface of the wheel must be clean and dry. All tire and wheel assemblies are to be checked for static tolerance of 2 grams and not more than 20 grams per plane, using cut-to-length weight produc ...

Relay Replacement (Attached to Wire Harness)
Removal Procedure Locate the relay. Refer to the Master Electrical Component List to locate the relay in the vehicle. Remove any fasteners which hold the relay in place. Remove any connector position assurance (CPA) devices or secondary locks. Note: Use care w ...