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 MODULEDIAGRAMSDIAGNOSTIC AIDSGENERAL TROUBLESHOOTING PROCEDURESMETER CONNECTIONS
1998 Pontiac Firebird V8-5.7L VIN G
Meter Connections
1998 Pontiac Firebird V8-5.7L VIN GSECTION Meter Connections
The previous diagnostic procedure was written to detect intermittents using the meter set to voltage. Whether using the current, voltage or resistance setting to detect intermittents, it is necessary to connect the meter to the circuit.
Following are examples of the various methods of connecting the meter to the circuit to be checked:
^ Backprobe both ends of the connector and either hold the leads in place while manipulating the connector or tape the leads to the harness for continuous monitoring while performing other operations or test driving. (Do not backprobe "Weather Pack(R)" type connectors.)
^ Disconnect the harness at both ends of the suspect circuit where it connects either to a component or to other harnesses.
^ Use Connector Test Adapter Kit J 35616-A to connect the meter to the circuit.
^ If the system being diagnosed has a specified Pinout or breakout box, it may be used to simplify connecting the meter to the circuit or for checking multiple circuits quickly.
Following are examples of the various methods of connecting the meter to the circuit to be checked:
^ Backprobe both ends of the connector and either hold the leads in place while manipulating the connector or tape the leads to the harness for continuous monitoring while performing other operations or test driving. (Do not backprobe "Weather Pack(R)" type connectors.)
^ Disconnect the harness at both ends of the suspect circuit where it connects either to a component or to other harnesses.
^ Use Connector Test Adapter Kit J 35616-A to connect the meter to the circuit.
^ If the system being diagnosed has a specified Pinout or breakout box, it may be used to simplify connecting the meter to the circuit or for checking multiple circuits quickly.
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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.