Need a little help This L70D has issues with short to ground in the UA harness! Customer had a root kick up hitting Power reducing /Charge pressure valve. destroying the harness plug with the diode fitted inside of plug also, they wired the plug in " looks to be backwards " need to know if ground wire must be on terminal 1 with diode mark there to that side so to allow 24 volts wire to be in lug 2 with diode leaving 3 terminal open and wireless. Is this correct?
Next on the pressure reducing valve i ohm tested the terminals and found #1 to #2 are closed the ohms reading .003 or connected is this valve bad because when i unplug this plug my short to ground is stopped on UA plug SE504 im sure is part of this circuit if i unplug this short to ground stops also i sure these plugs share a blue and white + 24 v some how the same blue n white wire supply CU 201 So to operate the pull and hold. "fuel leaver run solenoid" MA201 any understanding of this loader is self taught over the last few days,
A little help from someone with experience would be great
Next on the pressure reducing valve i ohm tested the terminals and found #1 to #2 are closed the ohms reading .003 or connected is this valve bad because when i unplug this plug my short to ground is stopped on UA plug SE504 im sure is part of this circuit if i unplug this short to ground stops also i sure these plugs share a blue and white + 24 v some how the same blue n white wire supply CU 201 So to operate the pull and hold. "fuel leaver run solenoid" MA201 any understanding of this loader is self taught over the last few days,
A little help from someone with experience would be great
Volvo L70D Brake pressure fault
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