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.
2000 Dodge and Ram RAM 2500 Van V8-5.2L CNG VIN TFACTORY OEM SERVICE PROCEDURE
Error Messages
ERROR MESSAGES
Block Echo/Compare Errors
Block Echo and Block Compare errors are often caused by voltage fluctuations, faulty I/O cables (CH7OOOA, CH7005, CH7010) or faulty communication connections at the diagnostic connector. Inspect for these conditions and review the sections on Vehicle Battery Voltage and Cable recommendations.
Checksum Errors
Checksum Errors are generally caused by corrupt flash update files, which can be caused by DRBIII(R) memory problems. If the DRBIII(R) has been without power for more than 8 hours, the update files and system memory could be in a corrupted state. "Cold Boot" the DRBIII(R). (To "Cold Boot", press the MORE and YES buttons on the DRBIII(R), at the same time. Then press "F4"). Reload the flash update file(s) from the TechCONNECT CLIENT. If it fails to complete in the connected mode, first reboot the TechCONNECT Client before re-attempting the flash download to the DRBIII(R). Then re-attempt the flash reprogramming process.
Block Echo/Compare Errors
Block Echo and Block Compare errors are often caused by voltage fluctuations, faulty I/O cables (CH7OOOA, CH7005, CH7010) or faulty communication connections at the diagnostic connector. Inspect for these conditions and review the sections on Vehicle Battery Voltage and Cable recommendations.
Checksum Errors
Checksum Errors are generally caused by corrupt flash update files, which can be caused by DRBIII(R) memory problems. If the DRBIII(R) has been without power for more than 8 hours, the update files and system memory could be in a corrupted state. "Cold Boot" the DRBIII(R). (To "Cold Boot", press the MORE and YES buttons on the DRBIII(R), at the same time. Then press "F4"). Reload the flash update file(s) from the TechCONNECT CLIENT. If it fails to complete in the connected mode, first reboot the TechCONNECT Client before re-attempting the flash download to the DRBIII(R). Then re-attempt the flash reprogramming process.
Factory Service Tools
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Disclosure: Verified tool recommendations may earn an affiliate commission at no cost to you.
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.
Rather have a pro handle this?
A certified mobile mechanic comes to your home or office. They bring the tools, you stay comfortable. No tow truck, no waiting room, no surprises.
Comes to youSame-day available12-month warranty
Get a Free QuoteNo obligation. See pricing before you book.