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 MANUALSJEEP1999WRANGLER SE, STANDARDREPAIR AND DIAGNOSISENGINE PERFORMANCESYSTEMENGINE CONTROLS - TESTS W/CODESVERIFICATION TESTSTEST VER-5A3
1999 Jeep Wrangler SE, Standard
Test VER-5A3
1999 Jeep Wrangler SE, StandardSECTION Test VER-5A3
- Using scan tool, monitor pretest enabling conditions until all conditions have been met to run the appropriate monitor. Run appropriate monitor for repaired DTC. Go to next step.
- If the repaired OBD-II DTC was reset, or the OBD-II monitor failed after running, the repair is not complete. Check for related Technical Service Bulletins (TSBs) or flash updates. If repaired DTC or another DTC exists, perform appropriate test(s) listed under SELF-DIAGNOSTIC TESTS. See DTC MESSAGES & CODES table. If no DTCs return, test is complete. Go to next step.
- Turn ignition on, with engine off. Using scan tool, erase DTCs. Turn ignition off. Disconnect scan tool. Test is complete.
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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.