Chevrolet Sonic Repair Manual: Engine Control

Internal Combustion Powertrain Control

General

Other materials:

Radio/Audio System Description and Operation
The entertainment system on this vehicle may have several different configurations available to it. To determine the specific configuration of the vehicle, please see the Service Parts ID Label, and refer to RPO Code List. Each item in the list below represents topics covered in detail below. ...

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 ...

Camshaft Timing Chain Installation
Special Tools EN-952 Fixing Pin EN-953-A Fixing Tool EN-955-10 Fixing Pin from EN-955 Kit For equivalent regional tools, refer to Special Tools. The engine should be adjusted to TDC. The crankshaft should be locked with EN-952 fixing pin. The camshaft should be locked with EN-9 ...