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 RAM2023PROMASTER 3500 CUTAWAYREPAIR AND DIAGNOSIS (SINGLE PAGE)ACCESSORIES & EQUIPMENTCRUISE CONTROL SYSTEMS(ACTIVE CRUISE CONTROL (ACC) MODULE - ELECTRICAL DIAGNOSTICS)DTC TROUBLESHOOTINGC141F-96-HARDWARE RESET FAILURE - COMPONENT INTERNAL FAILUREDIAGNOSTIC TEST
2023 Dodge and Ram ProMaster 3500 Cutaway
Diagnostic Test
2023 Dodge and Ram ProMaster 3500 CutawaySECTION Diagnostic Test
- CHECK FOR AN ACTIVE DTC NOTE:
Check for available ACC Module software updates. If applicable, update the module software, then retest.
- With the scan tool, read Adaptive Cruise Control (ACC) DTCs and record on the repair order.
- With the scan tool, erase ACC Module DTCs.
- Turn the ignition off for ten seconds, then start the engine.
- With the scan tool, read ACC DTCs.
Did the DTC return?
Yes
- Replace and program the Adaptive Cruise Control (ACC) Module in accordance with the Service Information.
- Perform the ADAPTIVE CRUISE CONTROL VERIFICATION TEST. Refer to ADAPTIVE CRUISE CONTROL (ACC) VERIFICATION TEST .
No
- Go To 2
- CHECK RELATED WIRING AND HARNESS CONNECTIONS
- Turn the ignition off.
- Check the related component and module power supply and ground circuits.
- Disconnect the ACC Module harness connector(s).
- Disconnect all related in-line harness connections (if equipped).
- Disconnect the related component harness connectors.
- Inspect harness connectors, component connectors, and all male and female terminals for the following conditions:
- Proper connector installation.
- Damaged connector locks.
- Corrosion.
- Other signs of water intrusion.
- Weather seal damage (if equipped).
- Bent terminals.
- Overheating due to a poor connection (terminal may be discolored due to excessive current draw).
- Terminals that have been pushed back into the connector cavity.
- Perform a terminal drag test on each connector terminal to verify proper terminal tension.
Repair any conditions that are found.
- Reconnect all harness connectors. Be certain that all harness connectors are fully seated and the connector locks are fully engaged.
- Reconnect all in-line harness connectors (if equipped). Be certain that all connectors are fully seated and the connector locks are fully engaged.
- Reconnect all related component harness connectors. Be certain that all connectors are fully seated and the connector locks are fully engaged.
- With the scan tool, erase DTCs.
- Using the recorded information along with the When Monitored and Set Conditions above, operate the vehicle within the conditions that set the DTC.
- With the scan tool, read ACC DTCs.
Did the DTC return?
Yes
- Replace and program the Adaptive Cruise Control (ACC) Module in accordance with the Service Information.
- Perform the ADAPTIVE CRUISE CONTROL VERIFICATION TEST. Refer to ADAPTIVE CRUISE CONTROL (ACC) VERIFICATION TEST .
No
- Perform the ADAPTIVE CRUISE CONTROL VERIFICATION TEST. Refer to ADAPTIVE CRUISE CONTROL (ACC) VERIFICATION TEST .
- Test 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.