Advanced Heavy Duty Truck Computer Diagnostics
Today’s heavy-duty commercial trucks are highly complex, rolling computers. When a check engine light illuminates or your truck suddenly loses power, mechanical guesswork will only waste your time and money. At Rapid Truck Repair, we utilize state-of-the-art heavy-duty truck computer diagnostics to communicate directly with your vehicle’s Electronic Control Modules (ECM).
We don’t just read codes and throw parts at a problem. Our certified diagnostic technicians analyze live engine data to pinpoint the exact root cause of the failure, ensuring accurate, first-time repairs for Freightliner, Peterbilt, Kenworth, Volvo, Mack, and International trucks.
We don’t just read codes and throw parts at a problem. Our certified diagnostic technicians analyze live engine data to pinpoint the exact root cause of the failure, ensuring accurate, first-time repairs for Freightliner, Peterbilt, Kenworth, Volvo, Mack, and International trucks.
Dealer-Level Diagnostic Capabilities
We invest in premium, dealer-level software—including Cummins INSITE, Detroit Diagnostic Link, and Volvo Premium Tech Tool—allowing us to perform advanced procedures that standard code readers cannot:
Complete ECM Scanning & Fault Isolation
Reading active and inactive fault codes across the engine, transmission, ABS, and body control modules.
Forced DPF Regenerations
If your truck’s emissions system is clogged with soot and passive regeneration has failed, we can command the computer to perform an active, high-temperature forced burn-off to clear the exhaust filters.
Clearing Forced Engine Derates
If an emissions or sensor fault has locked your truck into a 5-mph derate, we diagnose the physical issue, repair it, and reset the ECM parameters to restore full engine power.
Live Sensor Data Streaming
We monitor fuel pressure, boost pressure, exhaust temperatures, and injector performance in real-time while the engine is running to catch intermittent electrical or mechanical faults.
Parameter Adjustments
Adjusting idle shutdown timers, maximum road speeds, and PTO (Power Take-Off) configurations to match your fleet’s specific operational needs.
Fast Answers for Critical Engine Faults
We specialize in diagnosing the most common and frustrating modern diesel issues, including:

DPF, EGR, and SCR (DEF) system failures.

Variable Geometry Turbocharger (VGT) actuator faults.

High-Pressure Common Rail (HPCR) fuel injector misfires.

Complex electrical shorts and wiring harness degradation.
Years of Experience
0
+
Emergency Service
0
/7
Service Locations
0
Service Radius
0
mi
Mobile Diagnostics: We Bring the Scanner to You
A forced engine derate often happens miles away from a shop, leaving you stranded on the shoulder of the highway. You don’t have to pay for an expensive heavy-duty tow just to find out what a check engine code means. Our mobile service trucks are equipped with heavy-duty diagnostic laptops. We can plug into your truck’s 9-pin port on the side of the road, read the data, clear the derate, and execute the repair on-site.
Stop Guessing. Start Repairing. If your dashboard is lit up with warning lights, get the accurate answers you need to get back to work.
Call for Mobile or In-Shop Diagnostics: (916) 460-0222 | Email: admin@rapidtruckrepair.net
Stop Guessing. Start Repairing. If your dashboard is lit up with warning lights, get the accurate answers you need to get back to work.
Call for Mobile or In-Shop Diagnostics: (916) 460-0222 | Email: admin@rapidtruckrepair.net