2002 Jeep Grand Cherokee Q&A

2002 Jeep Grand Cherokee Question: check engine light

how do you reset the check engine light so it will go off. Need to run it through emissions and they will not run it if this light is on. Repairs have been done -
Answer 1
hi, may be you can 1.disconnect the inertia switch harness connector. 2. Turn key to ON position (Engine OFF) 3.Measure voltage of circuit between inertia switch harness connector and ground. 4. If battery voltage is found, replaced Inertia Switch. 5. Clear codes. When is the code detected? The code will be set if an incorrect voltage on the control circuit of the fuel pump relay is detected by the PCM. I hope this can help you. -
Answer 2
To reset the check engine light after repairs. you can use a scan tool to reset the light. If a scan tool is not available you can disconnect the battery to "reboot" the computer. After the code has been cleared, the vehicle will have to be driven to reset the emissions monitors. the drive is typically a 20 mile drive from a cold start. If the monitors have mot passed, the vehicle will not pass emisions, so the problem will need to be repaired well enough for your computer to be happy with the results. -
Answer 3
IF YOU ARE STILL HAVING PROBLEMS WITH THIS WE WOULD LIKE TO HELP YOU. COME BY DANA TIRE & AUTO SERVICE OR GIVE US A CALL AT 480-963-4534. THERE ARE TWO WAYS TO RE-SET THE CHECK ENGINE LIGHT. DISCONNECTING THE BATTERY OR WITH A SCAN TOOL AND WE CAN DO BOTH FOR YOU. -
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