WARNING: This page is about a different car, the 2002 Pontiac Firebird and 2002 Chevrolet Camaro. However, it is still accessible from the selected car via links, so may be relevant.

Connect DMM (J39200) to both ends of suspected harness connector, or from one end of a suspected circuit to another. Set rotary dial on DMM to AC or DC volts position. Press range button on DMM to select desired voltage range.
Press MIN MAX button on DMM. DMM displays 100ms RECORD and emits an audible tone. Simulate condition by wiggling connections or wiring or performing other operations such as a test drive. Listen for an audible MIN MAX tone indicating a new minimum or maximum value has be recorded.
Press MIN MAX button once to display MAX voltage value. Press MIN MAX button once more to display MIN voltage value. Compare difference between MAX and MIN voltage values. If difference between recorded MAX and MIN voltage values are one volt or more, and intermittent open or high resistance exists. Repair as necessary.

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.

Safety Warning

Test D: Testing For Electrical INTERMITTENTS: Testing

Use the Manual With the Right Hardware

When to See a Mechanic

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