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 MANUALSJEEP2024WAGONEER L SERIES II, RWDREPAIR AND DIAGNOSIS (SINGLE PAGE)ACCESSORIES & EQUIPMENTENTERTAINMENT SYSTEMS(VIDEO ROUTING MODULE (VRM) - ELECTRICAL DIAGNOSTICS)DTC TROUBLESHOOTINGB2204-00 ECU CONFIGURATION MISMATCHDIAGNOSTIC TEST
2024 Jeep Wagoneer L Series II, RWD
Diagnostic Test
2024 Jeep Wagoneer L Series II, RWDSECTION Diagnostic Test
- READ AND RECORD DTCS AND ENVIRONMENTAL DATA - ERASE DTCS AND CHECK FOR DTC TO RETURN
- With the scan tool, read DTCs in all Electronic Control Units (ECU's) and record on the repair order.
- With the scan tool, run a Vehicle Scan Report, or record the Environmental Data related to the DTCs.
- With the scan tool, erase all DTCs.
- Turn the ignition off for a minimum of 10.0 seconds.
- Turn the ignition on.
- Using the recorded Environmental Data and the When Monitored Conditions above, operate the vehicle in the conditions that set the DTC.
- With the scan tool, read DTCs.
Did the DTC return?
Yes
- Go To 2
No
- Perform the appropriate TESTING FOR AN INTERMITTENT CONDITION diagnostic procedure. Refer to: TESTING FOR AN INTERMITTENT CONDITION .
- CHECK FOR BCM DTCS
- With the scan tool, read DTCs.
- Check for any BCM configuration DTCs.
Were there any BCM configuration DTCs?
Yes
- Refer to: BODY CONTROL MODULE (BCM) - DIAGNOSTIC CODE INDEX and perform the appropriate diagnostic procedure.
No
- Go To 3
- CHECK THE BCM
Has the BCM been reprogrammed or replaced without being programed?
Yes
- Program the BCM if not programmed. With the scan tool, perform the Restore vehicle configuration.
- Perform the BODY VERIFICATION TEST. Refer to: BODY VERIFICATION TEST .
No
- Go To 4
- CHECK THE VIDEO ROUTING MODULE DTCS
Is the DTC active?
Yes
- Replace the Video Routing Module (VRM) in accordance with the Service Information. Refer to: VIDEO ROUTING MODULE (VRM), REMOVAL AND INSTALLATION .
- Perform the BODY VERIFICATION TEST. Refer to: BODY VERIFICATION TEST .
No
- Test complete, the condition or conditions that originally set this DTC are not present at this time. Using the wiring diagrams as a guide, check all related splices and connectors for signs of water intrusion, corrosion, pushed out or bent terminals and correct pin tension.
- Perform the BODY VERIFICATION TEST. Refer to: BODY VERIFICATION TEST .
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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.