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:

Immobilizer System Component Programming
This procedure will learn the immobilizer function. If the battery voltage is low, charge the battery before proceeding with the learn. If the body control module (BCM) or engine control module (ECM) have been replaced, they must be programmed before performing this learn procedure. Dependin ...

Engine Block Disassemble
Remove the cylinder head locating (1, 2). Remove the oil pressure switch (1). Remove the knock sensor bolt (2) and the knock sensor (1). Clean the thread. Remove the oil flow check valve (1). Remove the oil pressure rel ...

Engine Oil Cooler Installation
Note: Lubricate the oil cooler seal (8) with clean engine oil. Install the engine oil cooler assembly (6) along with 2 NEW sealings (8) and (9). Install the 3 oil cooler bolts (5) and tighten to  10 Y (89 l ...