Ayr Queensland Australia 4807 | The engine speed signal is sent from the ECU to the VCU there is test that can be done to test the ECU output to the VCU we had one recently which required a VCU replacement keep in mind if you replace the VCU update it to a 40 KMH if you only have 30 kmh and depending on your machine serial number there is a kit to make the transmission shift a little better. However there is a test procedure before you start buying bits wiring splice is one issue up the front. See how you go. Let me know if you need anymore help
Edited by KelB 6/8/2017 18:22
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John Deere 8400
