Servicing the SIR System Warning
Airbag Front Passenger Presence Sensor ReplacementData 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 configured for a specific vehicle.
Circuit Description
There are many components in a vehicle t ...
Special Tools
Illustration
Tool Number/Description
EN-471
KM-471
J-42070
J-36649
Adapter
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EN-6327-A
KM-6327-A
J-24460
J-42401
Cooling System ...
Engine Control Module Replacement
Engine Control Module Replacement
Callout
Component Name
Note: If the ECM is to be replaced, the ECM must be RESET
(prepared for removal) prior to removal from the vehicle. Failing to
reset the ECM will result in the ...