Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSPONTIAC1998FIREBIRD V8-5.7L VIN GREPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTRELAYS AND MODULES - POWERTRAIN MANAGEMENTRELAYS AND MODULES - COMPUTERS AND CONTROL SYSTEMSBODY CONTROL MODULEDESCRIPTION AND OPERATIONPOWER REQUIREMENTS
1998 Pontiac Firebird V8-5.7L VIN G
Power Requirements
1998 Pontiac Firebird V8-5.7L VIN GSECTION Power Requirements
The BCM will operate properly with a system voltage of 9-16 volts.
Operating current measured at the BCM battery terminals in the awake mode should not exceed the following values:
^ 75 milliamps with the ignition switch in the OFF position
^ 250 milliamps with the ignition switch in the RUN position
Operating current measured at the BCM battery terminals in the sleep mode should not exceed the following values:
^ 2 milliamps on vehicles without theft deterrent (UA6)
^ 3 milliamps on vehicles with theft deterrent (UA6)
Operating current measured at the BCM IGN1 and IGN3 terminals should not exceed 15 milliamps.
Operating current measured at the BCM battery terminals in the awake mode should not exceed the following values:
^ 75 milliamps with the ignition switch in the OFF position
^ 250 milliamps with the ignition switch in the RUN position
Operating current measured at the BCM battery terminals in the sleep mode should not exceed the following values:
^ 2 milliamps on vehicles without theft deterrent (UA6)
^ 3 milliamps on vehicles with theft deterrent (UA6)
Operating current measured at the BCM IGN1 and IGN3 terminals should not exceed 15 milliamps.
RENDER: 1.0x
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.