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 MANUALSDODGE AND RAM2023DURANGO GT PLUS, AWDREPAIR AND DIAGNOSISTRANSMISSIONTRANSFER CASE(DRIVETRAIN CONTROL MODULE (DTCM) - ELECTRICAL DIAGNOSTICS)DTC TROUBLESHOOTINGU0422-IMPLAUSIBLE DATA RECEIVED FROM BODY CONTROL MODULEDIAGNOSTIC TEST
2023 Dodge and Ram Durango GT Plus, AWD
Diagnostic Test
2023 Dodge and Ram Durango GT Plus, AWDSECTION Diagnostic Test
- VERIFY THE DTC IS ACTIVE NOTE:
This DTC must be active for the results of this test to be valid.
- Perform any Technical Service Bulletins (TSBs) that may apply.
- Turn the ignition on.
- With the scan tool, record and erase the DTCs.
- Cycle the ignition switch from off to on.
- With the scan tool, read the DTCs.
Is the DTC active at this time?
Yes
- Go To 2
No
- Perform the DTCM VERIFICATION TEST. Refer to DTCM VERIFICATION TEST .
- CHECK POWERTRAIN CONTROL MODULE (PCM) CAN BUS DTCS ARE PRESENT
- With the scan tool, read the PCM DTCs.
Are there any PCM CAN BUS DTCs present?
Yes
- Perform the appropriate diagnostic procedures. Refer to DIAGNOSTIC CODE INDEX (3.6L) , DIAGNOSTIC CODE INDEX (5.7L) , DIAGNOSTIC CODE INDEX (6.2L) or DIAGNOSTIC CODE INDEX (6.4L) .
- Perform the DTCM VERIFICATION TEST. Refer to DTCM VERIFICATION TEST .
No
- Go To 3
- With the scan tool, read the PCM DTCs.
- CHECK BODY CONTROL MODULE (BCM) CAN BUS DTCS ARE PRESENT
- With the scan tool, read the BCM DTCs.
Are there any BCM CAN BUS DTCs present?
Yes
- Perform the appropriate diagnostic procedures. Refer to DIAGNOSTIC CODE INDEX .
- Perform the DTCM VERIFICATION TEST. Refer to DTCM VERIFICATION TEST .
No
- Using the schematics as a guide, check the Drive Train Control Module (DTCM) pins, terminals, and connectors for corrosion, damage, or terminal push out. Pay particular attention to all power and ground circuits. If no problems are found, replace the Drive Train Control Module (DTCM) accordance with Service Information. Refer to MODULE, DRIVETRAIN CONTROL (DTCM), REMOVAL .
- Perform the DTCM VERIFICATION TEST. Refer to DTCM VERIFICATION TEST .
- With the scan tool, read the BCM DTCs.
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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.