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.
Instruments Test
Instruments test checks instruments for proper operation.
- Connect TECH 2 or equivalent scan tool to Data Link Connector (DLC). DLC is located at lower left side of instrument panel, behind a small cover. Turn ignition on, and go to next step.
- On scan tool select F3: MISCELLANEOUS TESTS. From application menu select F4: INSTRUMENTS, and go to next step.
- Follow scan tool directions to test individual gauges.
- If all gauges test as specified, testing is complete. If any gauge fails test, test area of fuel system that failed test. For aid in diagnosing gauges, see WIRING DIAGRAMS , or appropriate INSTRUMENT PANELS article in ACCESSORIES & EQUIPMENT.
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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.
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