Chevrolet Sonic Repair Manual: Fuses Junctions and Relays

Body Control System Description and Operation

The body control system consists of the body control module (BCM), communications, and various input and outputs. Some inputs, outputs and messages require other modules to interact with the BCM. ...

Front Compartment Fuse Block Replacement

Removal Procedure Disconnect the battery negative cable. Refer to Battery Negative Cable Disconnection and Connection. Remove the junction block cover (1). ...

Other materials:

How to Add Coolant to the Coolant Surge Tank
Caution This vehicle has a specific coolant fill procedure. Failure to follow this procedure could cause the engine to overheat and be severely damaged. If no problem is found, check to see if coolant is visible in the coolant surge tank. If coolant is visible but the coolant level is not at t ...

Hub/Axle Flange and Wheel Stud Runout Inspection
Special Tools GE-8001 Dial Indicator Set , or equivalent Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle. Mark the location of the wheels to the wheel studs and mark the specific vehicle position on each tire and wheel – LF, LR, RF, RR. Remove the tire and ...

Secondary Air Injection System Description
The Secondary Air Injection System aids in the reduction of hydrocarbon exhaust emissions during a cold start. This occurs when the start-up engine coolant temperature (ECT) is between −10 to +56?C (14?33?F), the intake air temperature (IAT) is greater than −10?C (14?F) and it has ...