I have a 2017 JCB 526-60, engine runs good, steering works, cant switch steering modes , boom wont go up or down, wont move forward or reverse. I have the following codes. TA8-4 U1501-88 engine can fault U1502-88 transmission can fault U1503-88 joystick can fault U1504-88 hydraulic controller can fault
being a 2017, wouldnt it be under warranty?
It would have to go to the dealer who sold it for warranty work, which is in south texas. Sounds like JCB has a screwy warranty system.
i'd start looking around for a wiring issue perhaps? damaged or loose wire? water get in somewhere? what were you doing when it acted up?
Sounds like battery or alternator u/s check wiring at back of alternator for bad connection also at the battery /fuses also at the starter. May need to look at the hydraulic ecu connection plugs as well for good fitment . Have you jump started anything from this machine or had a flat battery by chance.
You may need to have a jcb service engineer plug a lap top in to find the fault . These do suffer from what we call right hand cluster fault basically the right hand dash panel fail normally takes the indicators out on one side do they work by chance. The dash has an ecu and the hydraulics also the trans and they all need to talk via the can bus system if the supply voltage has gone faulty or outside normal working range the can bus dont like this and shuts down or come up with error like you have.
supply voltage of hydraulic ecu is not constant,any possible cause that i can look into.
Have a code coming up U1504-88 machine won’t start,has three dashes instead of the speed and the dials are going up and down with the alarm going off,all fuses checked and boom harness is good. Anything else I could check?