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.
2002 Jeep Grand Cherokee OverlandFACTORY OEM SERVICE PROCEDURE
Memory System Verification Test
- Reconnect all previously disconnected components and connectors.
- If any Memory/Heated Seat, or Driver's Door Module Trouble Codes are present, erase at this time.
- If the Memory Seat Module was replaced, use the DRBIII(R) and Reset Guard Bands. See MEMORY SEATS under PROGRAMMING.
- With the Memory Switch on the Driver's Door, program the Driver's Seat No. 1 Button to a desired position and Driver No. 2 Button to a different position.
- Remove the ignition key and close all doors to allow the Body Control Module to time out (30 seconds).
- Verify that both Memory positions can be recalled from the RKE transmitter and the Memory Switch on the Driver's Door.
- Turn ignition on, and with the DRBIII(R), erase all Diagnostic Trouble Codes from all modules. Start the engine and allow it to run for 2 minutes and fully operate the system that was malfunctioning.
- Turn ignition off and wait 5 seconds. Turn ignition on and using the DRBIII(R), read DTC's from all modules. Are any DTC's present or is the original complaint still present? If yes, repair is not complete. See DIAGNOSTIC TROUBLE CODE IDENTIFICATION table in RETRIEVING & CLEARING DIAGNOSTIC TROUBLE CODES under SELF-DIAGNOSTIC SYSTEM. If no, repair is complete.
Factory Service Tools
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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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