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 RAM20232500 HD POWER WAGONREPAIR AND DIAGNOSIS (SINGLE PAGE)ACCESSORIES & EQUIPMENTCOLLISION/AVOIDANCE(CENTRAL VISION PROCESSING MODULE (CVPM) - ELECTRICAL DIAGNOSTICS)DIAGNOSIS AND TESTINGB223B-00-VEHICLE CONFIGURATION MISMATCHDIAGNOSTIC TEST

2023 Dodge and Ram 2500 HD Power Wagon

Diagnostic Test

2023 Dodge and Ram 2500 HD Power WagonSECTION Diagnostic Test

READ AND RECORD DTCS AND ENVIRONMENTAL DATA - ERASE DTCS AND CHECK FOR DTC TO RETURN
1. With the scan tool, read DTCs in all Electronic Control Units (ECUs) and record on the repair order.
2. With the scan tool, run a vehicle Scan Report, or record the Environmental Data related to the DTCs.
3. With the scan tool, erase all DTCs.
4. Turn the ignition off for a minimum of 10.0 seconds.
5. Turn the ignition on.
6. Using the recorded Environmental Data and the When Monitored Conditions above, operate the vehicle in the conditions that set the DTC.
7. With the scan tool, read DTCs.
Did the DTC return?

Yes
- Go To 2
No
- Perform the appropriate INTERMITTENT CONDITION diagnostic procedure. Refer to TESTING FOR AN INTERMITTENT CONDITION .
CONFIGURE THE CVPM TO THE VEHICLE - ERASE DTCS AND CHECK FOR DTC TO RETURN
1. With the scan tool, configure the CVPM to the vehicle.
2. With the scan tool, erase all DTCs.
3. Turn the ignition off for a minimum of 10.0 seconds.
4. Turn the ignition on.
5. Using the recorded Environmental Data, along with the When Monitored and Set Conditions above, operate the vehicle in the conditions that set the DTC.
6. With the scan tool, read the CVPM DTCs.
Did the DTC return?

Yes
- Go To 3
No
- Test complete.
- Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
CONFIGURE THE BCM TO THE VEHICLE - ERASE DTCS AND CHECK FOR DTC TO RETURN
1. With the scan tool, configure the BCM to the vehicle.
2. With the scan tool, erase all DTCs.
3. Turn the ignition off for a minimum of 10.0 seconds.
4. Turn the ignition on.
5. Using the recorded Environmental Data, along with the When Monitored and Set Conditions above, operate the vehicle in the conditions that set the DTC.
6. With the scan tool, read CVPM DTCs.
Did the DTC return?

Yes
- Go To 4
No
- Test complete.
- Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
VERIFY THE BCM HARDWARE AND SOFTWARE PART NUMBERS ARE CORRECT FOR THE VEHICLE
1. With the scan tool, read the BCM hardware and software part numbers and record them on the repair order.
  Are the BCM hardware and software part numbers correct for the vehicle?
  
  Yes
  - Go To 5
  No
  - Replace the BCM in accordance with the Service Information. Refer to MODULE, BODY CONTROL (BCM), REMOVAL AND INSTALLATION .
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
CHECK RELATED HARNESS CONNECTIONS
1. Disconnect all CVPM harness connectors.
2. Disconnect all related in-line harness connections (if equipped).
3. Disconnect the related component harness connectors.
4. 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.
5. Reconnect all CVPM harness connectors. Be certain that all harness connectors are fully seated and the connector locks are fully engaged.
6. Reconnect all in-line harness connectors (if equipped). Be certain that all connectors are fully seated and the connector locks are fully engaged.
7. Reconnect all related component harness connectors. Be certain that all connectors are fully seated and the connector locks are fully engaged.
8. With the scan tool, erase DTCs.
9. Using the recorded Environmental Data, along with the When Monitored and Set Conditions above, operate the vehicle in the conditions that set the DTC.
10. With the scan tool, read CVPM DTCs.
  Did the DTC return?
  
  Yes
  - Replace the Central Vision Processing Module (CVPM) in accordance with the Service Information. Refer to MODULE, CENTRAL VISION PROCESSING (CVPM), REMOVAL AND INSTALLATION .
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
  No
  - Perform the BODY VERIFICATION TEST. Refer to BODY 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.