📷 Have you ever wondered what’s inside a DDEC IV ECM? This is the 9308 layout, and it’s built a little different than the 9307. 📷 📷 Designed to run up to 8 injectors, as in the 8V92 found on boats and other equipment. #ECMRepair #DieselTech #TruckLife #DieselDiagnostics

Opening up a DDEC IV ECM to find out why the engine brake isn’t working 📷📷 Inside, we found damage on the engine brake outputs caused by humidity or oil intrusion — including a burnt trace at the pin. The good news? 📷 #ECMRepair #DDECIV #EngineBrake #DieselTech #Truck

📷📷We’re Hiring. No ECM Experience Needed! Shoutout to Alan Bonzo for the support! 📷 He mentioned he’s an automotive electrician interested in learning how to open and repair ECMs — and the good news is: you don’t need ECM experience to join our team #DieselTech #ECMRepair

📷📷Are you getting into ECM repairs for semi-trucks? One tool you must have is an oscilloscope — and today we’re testing our new Hantek model! 📷 An oscilloscope lets you read and monitor signals in real time, from engine speed to injector signals and more. #ECMRepair #Truck

📷 Helping truck owners wherever they’re calling from Whether it’s ECM questions, programming, or just needing guidance, we’re always here to help. Call us, message us, or drop your questions in the comments 📷 Follow me for more ECM tips and support📷📷 #TruckECM #ECMRepair

Opening up a DDEC IV ECM to find out why the engine brake isn’t working 📷📷Inside, we found damage on the engine brake outputs caused by humidity or oil intrusion — including a burnt trace at the pin. The good news? This ECM is repairable #ECMRepair #EngineBrake #DieselTech

📷📷 Quick Truck Diagnostic Tip! Before you start… don’t erase the fault codes. Many drivers see a bunch of codes and clear everything before test-driving again — but that wipes out valuable info.📷 The fault count tells you if a code showed up once or 100+ times #ECMRepair

This is how we read signals from a truck ECM 📷📷 Today we’re using the oscilloscope to check 12V power and even watch live analog signals from our generator. With just a couple clips, you can see every voltage change right on the screen—simple and powerful #ECMRepair #Truck

📷📷 Dealer-Rebuilt ECM vs. Independent Shop — What’s the Real Difference? Many people think a dealer-rebuilt ECM means a brand-new board… but that’s not always the case. 📷ECMRepair #DieselDiagnostics #TruckTech #ECMRebuild #MechanicTips

📷📷 Same-Day ECM Solutions 📷📷You don’t have to wait days to get your ECM repaired. We keep ECMs in stock, so in many cases we can program and ship the same day, getting your truck back on the road fast — sometimes by the next day. Downtime means lost money #ECMRepair #Truck

📷📷 Working on a Caterpillar C15 ECM (6NZ model) — the respected, strong and reliable as always! This one had a common issue: no communication during diagnosis and the truck wouldn’t start. We got it fixed and communicating again #TruckRepair #ECMRepair #Caterpillar

Have you ever wondered how an oscilloscope works? 📷📷 Today we’re using a Hantek 1008 to show how we monitor multiple ECM signals right from a laptop. Just plug in the USB, select your channel, and you can instantly see live voltage changes—all in real time #ECMRepair #Truck

📷 Monitoring ECM Signals Made Easy 📷 We show how to monitor ECM signals using a Hantek oscilloscope. Just ground the black lead, connect the red one to the communication pin (B2), and you’ll see the pulse signals live on the screen. #ECMRepair #DieselTech #TruckRepair

📷📷 N14 Cutting In & Out? Here’s Why. David Smith asked why his N14 Cummins cuts in and out, losing power like the key is being turned off and on. 📷📷 On the N14, this is a very common ECM failure symptom. #CumminsN14 #TruckDiagnostics #DieselMechanic #ECMRepair

📷📷Short to Ground vs. Short Circuit. A short circuit is any damage that causes a circuit’s resistance to drop below normal. A short to ground is a type of short circuit where a wire connects to ground—often from rubbing, vibration, or wear #TruckDiagnostics #ECMRepair #Diesel

📷📷 How CAN Communication Works in Your Truck CAN communication uses a differential voltage between CAN High and CAN Low to send signals from the ECM. At idle, both sit at 2.5V, but when there's a digital “1”: 📷 CAN High jumps to 3.5V 📷 CAN Low drops to 1.5V #ECMRepair

❌ Freightliner no acelera Este CPC4 causaba que el camión encendiera pero no aceleraba y el DEF parpadeara en rojo ⚠️ Lo reparamos en Dallas y quedó listo para volver a la ruta ✅🔥 #TruckDiagnostics #ECMRepair #Trucks

¿Tu camión no enciende? Podría ser la computadora (ECM) Así es como diagnosticamos una ECM Serie 60 cuando el motor no arranca. La conectamos a nuestro banco de pruebas y, si no hay comunicación, ya sabemos dónde está el problema. 📷 #TruckRepair #ECMRepair #DetroitDiesel

📷 Construyendo un simulador para computadoras Caterpillar 📷 Así es como armamos un simulador para probar ECMs Caterpillar: fuente de poder, conectores de cabina y motor, puerto de diagnóstico, inyectores, generador de señales. #Caterpillar #TruckDiagnostics #ECMRepair