Detroit Diesel | OTR Remote Diagnostics
Already have an ELD plugged in? No problem.
OTR Remote Diagnostics installs alongside your existing ELD at the diagnostic port. We include a free splitter harness so both devices connect to your truck. No conflicts. The device connects over cellular, so every command you send and every data point you see travels through cell towers. No WiFi needed. No Bluetooth range limit. Works anywhere the truck has cell service.
| Engine | Years Covered |
|---|---|
| Detroit DD13 | 2011 - 2026 |
| Detroit DD15 | 2011 - 2026 |
| Detroit DD16 | 2011 - 2019 |
Running Detroit trucks without visibility is costing you.
Detroit aftertreatment systems run complex ACM logic that controls derate timing. When something triggers, the countdown starts. Without real-time data, you’re always reacting.
Detroit’s derate timer runs in the background
Detroit engines use the ACM (Aftertreatment Control Module) to manage derate countdowns. The timer starts silently. Your driver sees the warning light but has no idea how much time is left. By the time power drops, the window to reset remotely is closing fast.
DPF regens failing without anyone knowing
Detroit trucks need regens to burn off soot. When regens don’t complete, soot builds until the truck derates. Your ELD has no idea this is happening. OTR Remote Diagnostics tracks soot load in real-time and lets you force a regen remotely.
DEF system codes are the #1 shop visit
Detroit DEF quality, dosing valve, and NOx sensor codes are the top reasons for unplanned dealer visits. A single DEF-related breakdown costs $3,000 to $5,000 when you add tow, repair, and lost load. The warning signs were in the data days before.
Common Detroit Diesel fault codes you’ll catch before they become breakdowns.
These are real fault codes from Detroit DD13, DD15, and DD16 engines. OTR Remote Diagnostics reads them the second they trigger and tells you exactly what to do.
| Fault Code | Description | OTR Remote Action |
|---|---|---|
| SPN 4364 FMI 18 | Aftertreatment SCR Catalyst Efficiency Below Threshold | Remote Reset |
| SPN 3226 FMI 5 | Aftertreatment Outlet NOx Sensor Circuit Failed | Alert + Diagnose |
| SPN 3251 FMI 16 | Aftertreatment DPF Soot Load Too High | Force Regen |
| SPN 3364 FMI 18 | Aftertreatment DEF Quality Performance | Remote Reset |
| SPN 1569 FMI 31 | Engine Protection Torque Derate | Remote Reset |
Detroit Diesel-specific commands. From anywhere.
Every command OTR Remote Diagnostics sends goes directly to the Detroit Diesel ECM. Not broadcast data. Not surface-level readings. Direct communication with the engine computer.
Reset fault codes
Clear active and inactive fault codes at a dealer level. Same reset your Detroit Diesel dealer runs with Detroit Diesel Diagnostic Link (DDDL), done remotely from your phone.
Force DPF regen
Initiate a forced DPF regen remotely. Monitor exhaust temps, soot level, and regen progress in real-time from your dashboard.
Reset aftertreatment
Reset DEF quality, SCR efficiency, and NOx sensor readings. Eliminate cascading derate codes without sending the truck to a dealer.
Derate alerts
Get notified the moment a Detroit Diesel truck starts a derate countdown. Act before lockout, not after.
Live engine data
Stream 30+ parameters in real-time: soot load, DEF level, SCR efficiency, exhaust temps, boost pressure, EGR position, coolant temp, oil pressure.
GPS tracking
Real-time location for every truck.
How much is one breakdown actually costing you?
Now multiply that by the number of unplanned breakdowns your fleet had last year. Most of them started with a fault code that was visible in the data days before the truck went down. Nobody was watching.
Get a custom quote for your fleet.
Tell us about your fleet and we’ll send you a custom quote within 24 hours.