Chevrolet Cobalt Service & Repair Manual: Electrical System, Inspection

A visual inspection must always be performed to confirm the presence of aftermarket components, potential collision damage, or areas of concern.

Ensure battery voltage is greater than 12 volts prior to and during pinpoint test.

Caution: Do not have a battery charger attached during vehicle testing.

1.	Understand and validate customer concern.

2.	Isolate systems and component affected.

3.	Refer to wiring diagrams to isolate affected circuits.

4.	Visually inspect for obvious signs of physical damage to wires, connectors, sensors or modules.

5.	Ensure all ground connections are tight and free of corrosion.

6.	Inspect fusible links for signs of overheating.

7.	Inspect fuses in interior and underhood fuse panel.

8.	Inspect circuit breakers and relays.

9.	Connect a suitably programmed scan tool to vehicle DLC.

10.	Carry out network test.

11.	Clear continuous DTCs and carry out self-test diagnostics for all required vehicle system modules.

Refer to Fig. 1 when performing following procedure. 1. Remove door panel pull cup trim plate. 2. Remove armrest pull cup. ...

1. Understand and validate customer concern. Inspect visible system components for obvious damage or conditions that may cause concern. 2 ...

Chevrolet Cobalt Owners Manual