2004 John Deer Buck Utility ATV 500, 500EX and 500EXT Service Manual, Page 42Get this manual
Go to next stepGo to step 11 Before proceeding to the "Diagnosing HydraulicMechanical Components", Procedure AA and ohm test on each solenoid must be performedThe T-harness test must be goodRe-perform testRefer to "Diagnosing HydraulicMechanical Components", Problem With HydraulicMechanical Shift SystemSee "Diagnosing HydraulicMechanical Components" on page 42Go to step 9
Refer to "Diagnosing HydraulicMechanical Components", Problem With HydraulicMechanical Shift SystemSee "Diagnosing HydraulicMechanical Components" on page 42Replace the failed solenoid or solenoidsGo to step 15
Connect the T-harness (PN JDG 529 035 653) into the Deutsch pin connector for the valve body solenoidsWith engine at idle press the shift button up then downYou should see one light for down shift and one for up shiftConnect next into the 4-pin Deutsch connector for the clutch solenoidsAt idle while pressing the shift button you should see one lightNow raise RPM to 2000 and press button the other light should come on