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  1. R

    JD 304H code ER04

    Yes, the pins in the connections look to be good, when I start it up the parking brake light gets faint not bright like it should be, turn off parking brake switch and shift into gear and it goes straight to ER04. No arrows and it is locked up. thanks
  2. R

    JD 304H code ER04

    I tried the jumper, nothing. I swapped relays with another relay (fuel shutoff) nothing. I know how to use voltmeter, Thank you for all the help, I need to get loader running before next snow storm hits.
  3. R

    JD 304H code ER04

    Have a John Deere 304H loader throws code ER04, JD tech says it is parking brake. Have changed parking brake switch many times, it will work for awhile but then locks everything up. Have to turn master switch off for awhile sometimes it takes off sometimes it takes several atttempts. JD said to...
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