Diagnostic Health Report – 2017 Ram 5500 (Cummins 6.7L)

Here's the exact diagnostic summary I sent to a client after working on their 2017 Ram 5500 cummins 6.7L diagnostic on-site. No changes, no tweaks—just the actual email as it is. I share these reports to demonstrate how OnSite Diesel Solutions LLC communicates clearly, diagnoses accurately, and earns trust by being transparent.

diagnostic-health-report-2017-ram-5500-cummins-6-7l

OnSite Diesel Solutions, LLC11631 Oak Ridge Tr.

• Marysville, CA 95901Phone: (916) 224-2880

• Tax ID: 33-4021979

Email: ods@onsitedieselsolutions.com

• Technician: Manuel/owner

 Summary for Client

Hi [client name],

I ran a full scan on your 2017 Ram 5500 and confirmed a communication loss between the ECM and the turbocharger actuator (Code U010C). This is why your check engine light is on and may affect performance soon if not addressed.

There’s also a NOx fault (P2BAC), likely due to EGR deactivation or malfunction. It’s not lighting the warning light, but it affects emissions compliance and should be checked.

I recommend starting with a turbo system wiring inspection and actuator test. Once complete, we’ll clear the codes and confirm all systems are communicating properly. Full report attached to email.

Client: [name]

VIN: 3C7WRMBL3HG551984

License Plate: 14429B2

Mileage: 146,782 mi

Service Hours: 5,451 h

Date: June 6, 2025

Active Faults Summary

Fault Code	Description	Module	Status	MIL On
U010C	Turbocharger – Communication Lost with Actuator	PCM (Powertrain Control)	Active	Yes
P2BAC	NOx Limits Exceeded Due to EGR Deactivation	PCM (Powertrain Control)	Active	No

Critical Note: Fault U010C is currently illuminating the check engine light. This may be due to wiring issues, a faulty turbo actuator, or ECM miscommunication. If left unresolved, it can lead to limp mode or boost loss.

System Health Snapshot

• Turbocharger Control: Communication fault detected. Recommend connector inspection and actuator functional test.

• EGR & Emissions: Deactivation triggered NOx emissions code. Could be the result of another fault or disabled EGR control.

• Other Modules (ABS, TCM, BCM, RFH, ORC, IPC): No stored or active faults reported—functioning normally.

Freeze Frame Data

• Fault U010C First Triggered At: 145,938.6 mi

• Last Occurrence: 146,773.7 mi

• Operating Cycle Counter: 0 (indicates ongoing issue)

• Warning Lamp (MIL): On

• Fault P2BAC First Triggered At: 146,018.1 mi

• Last Occurrence: 146,773.7 mi

• Warning Lamp: Off

Recommended Repairs & Estimate

Repair Task	Labor (hrs)	Est. Cost (Parts & Labor)	Notes
Inspect Turbo Actuator Wiring	0.5	$120 – $180	Clean/secure all harness connections
Run Turbo Actuator Test (Jaltest)	0.5	$120 – $160	Validate signal response and boost control
Verify EGR Operation	0.5	$100 – $150	Determine if EGR is active, blocked, or deleted
Clear Fault Codes & Retest	0.3	Included	Post-repair verification scan

Total Estimate: $340 – $490

Let us know how you'd like to move forward.

Best,

Manuel/owner OnSite Diesel Solutions, LLC

“OnSite Diesel Solutions LLC – Mobile Diesel Diagnostics & Repair”