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 ...

Intake Manifold Installation (1.8L LUW and LWE)
Clean the sealing surfaces. Install 4 NEW gaskets. Caution: Refer to Fastener Caution. Install the intake manifold (2) and the 7 intake manifold bolts (1) and tighten to  20 Y (15 lb ft). Install the intake m ...

Gear Position Sensor Replacement
Gear Position Sensor Replacement Callout Component Name Preliminary Procedure Unclip the engine control module (ECM) and bracket from the battery tray. 1 Gear Position Sensor Magnet Bolt ...