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Read articles →This is a real-world diagnostic on a customer's 9230 throwing oil pressure, intake air pressure, and low fuel pressure sensor codes simultaneously. The technician walks through John Deere Service Advisor steps, disconnects ECU connectors J1/J3, uses tech mode to check codes, then multimeter-tests 5-volt sensor power at each sensor, tracing an intermittent short in the main wiring harness and splicing in a new circuit. Best for owners or techs troubleshooting similar multi-sensor code combinations, not general shoppers.
Filmed by a field technician (Larry the Tractor Guy) doing an actual service call, so expect a hands-on repair walkthrough rather than a sales or review video.
