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Summary of change:
ECU - 14951 - M52 PNP Order id 13910 Repair - ASAP Delivered to VEMS - 11th Dec 2017 No feedback as of yet. Customer getting frustrated with repair time. Issue with the ECU from the first time the customer plugged it into his car. Main relay buzzing. Please provide feedback to the status of the repair / alterations to the ECU so that the main relay stops buzzing. Update and further issue with this ECU. currently on my bench with customers actual engine loom there look to be no issues when its directly connected to the battery. However as described in email conversation the main relay and fuel pump relay don´t work. With his stock BMW ECU they do and the car drives normally. Any suggestions to potential reasons? --------- '''ECU sn 19860''' I need help to diagnose this ECU so I can actually use it It hasn´t left my bench, I '''added second serial and 5v to second serial which works.''' * it's best NOT to disassemble an ECU * if really needed, be very careful during clamping, especially if the device has bridgeoutput driver ( especially if planning to use it for InTake/DriveByWireThrottle ) ** needs good cooling ** insulatorsheet should be ---- * See the '''paper''' included with the ECU (save a photo or scan for future reference) * '''if inverted''', than activation will turn them off. Extra outputs can possibly be controlled from: * p259 channels (activate all, 1 by 1) * s259 ch 1-2 (internal signal), in VemsTune: "Extra output 5/6" * See GenBoard/Manual/DigitalOut/Table * VT: see VemsTuneVersion and validate ** if in doubt, publish .vemscfg '''EC10 pinout''' * EC10/pin1 NFET out (p259/ch0, inverted) * EC10/pin2 NFET out (p259/ch1, inverted) * EC10/pin3 NFET out (p259/ch2, inverted) * EC10/pin4 NFET out (p259/ch3, inverted) * EC10/pin5 '''+5V''' * EC10/pin6 3d trig HALL input * EC10/pin7 2nd wheelspeed input * EC10/pin8 Bridge output 1 (planning to use throttle ?) * EC10/pin9 Bridge output 2 (planning to use throttle ?) * EC10/pin10 '''GND''' * Verify GND with resistance/connectivity measurement; * Verify +5V with DVM DC measurement. This should match the paper received with the device (paper also shows the pin numbers). If the paper is lost, measure (and use VT to activate outputs; Any inverted output will turn off as a consequence). If not using the information received (see the paper), and not measuring, than install is unlikely to succeed. ---- There are 10 wires total for this small narrow board EC10/pin1-4: What I am getting is the NFET board output are "always on" (note: BECAUSE : ) * Measuring results with all P259 channels off (unused). * '''To acquire useful information, turn on inputs from VT, 1 by 1, while measuring.''' ** most likely outputs will act to the changes commanded from VT, it's that simple (and take notes: should match the paper included with the device) *** The P259 0-3 outputs need to be set inverted for this board to work correctly. They are on / off controllable but inverted! This is not represented correctly on any paperwork. Thick RED - 12v Thick Brown - 0V 4 Thin Wires - all 12V 4 Thick wires - all pull to ground enough to activate my test LED
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