I'll have an oscilloscope, amp clamp, and new Bosch starter in the next few days, and while replacing starter will check everything I can with the manifold out (like the crank sensor). Hello, I'm going to diagnose my BSD line and need help to rule out my DME, would appreciate any help and advice, specifically on whether a signal should be present if all BSD users are disconnected (IBS, alternator, waterpump, and oil condition sensor). It correctly varied speeds instead of full blast emergency mode, so, DME can now communicate through this line *Verified repair by replugging waterpump and running coolant bleed procedure. Reading was a constant DC 0.8v (no square wave signal or AC). *Diagnosed DME as faulty by measuring voltage at the bit serial data (BSD) line with all components unplugged (waterpump, alternator, oil condition sensor, intelligent battery sensor).
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