Firebird V8-5.7L VIN G (2001)
Ignition Relay: Technical Service Bulletins
Ignition System - Revised Ignition Relay Diagnostics
Bulletin No.: 04-06-04-039
Date: June 14, 2004
SERVICE MANUAL UPDATE
Subject:
Revised Ignition Relay Diagnosis
Models:
2001-2002 Chevrolet Camaro, Corvette
2001-2002 Pontiac Firebird
This bulletin is being issued to revise the Ignition Relay Diagnosis in the Engine Controls sub-section of the Service Manual. Please replace the current
information in the Service Manual with the following information.
The following information has been updated within SI. If you are using a paper version of this Service Manual, please make a reference to this bulletin
on the affected page.
Ignition Relay Diagnosis (2001-2002 Chevrolet Camaro, Pontiac Firebird)
Circuit Description
The ignition relay supplies battery positive voltage to the following components:
^
Evaporative emissions (EVAP) system
^
Ignition modules/coils
^
Fuel injectors
^
Mass airflow (MAF) sensor
^
Oxygen sensors
^
A/C clutch relay
^
Transmission control solenoids
Diagnostic Aids
If the ignition relay fails to close:
^
Engine will crank, but does not run
^
Scan tool data will be available
^
Instrument panel lights will illuminate
Test Description
