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SYMPTOMS OF A BAD ECM (ENGINE CONTROL MODULE)
3:03
SYMPTOMS OF A BAD ECM (ENGINE CONTROL MODULE)
2.3M viewsJul 18, 2021
YouTubeEasyAutoFix
🔧 ECM Diagnostics: Method 2 🔧 Discover the second method to diagnose an ECM! Here's an example on a Detroit DDEC III 1️⃣ Connection: We hook the ECM to a bench harness for communication. 2️⃣ Diagnostic Codes: We used Detroit Diagnostic Link and found it has non-volatile memory failure and zero engine hours. 3️⃣ Result: This DDEC III ECM (12.7 Detroit) needs repair—100% confirmed! 🔍 Advanced Testing: I also manually check voltages and inspect signals in our lab for injector or sensor issues us
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🔧 ECM Diagnostics: Method 2 🔧 Discover the second method to di…
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5 SYMPTOMS OF A BAD ECM: EASY FIXES!
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Signs & Symptoms of a Failing ECU/ECM! (Engine Control Unit or Engine Control Module)
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Signs & Symptoms of a Failing ECU/ECM! (Engine Control Unit or …
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YouTube8020 Automotive
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Need Help to Start Your Detroit? Check the ECM voltage supply! ⚠️ Is the truck not starting? Don't jump to replacing the ECM just yet! This quick tip shows you how to diagnose a potentially damaged Detroit Engine Control Module (ECM). Symptoms: Engine won't start, the diagnostic scanner can't connect. First, rule out fundamental issues: ✅ Power: Confirm 12v on both power and ignition wires (red = , black = -). ✅ Ground: Verify good ground connection. ✅ Connection: Ensure the communications adapt
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