TM 9--2350--292--20--1 0067 00--2 ALL SIGNALS AT REMOTE TERMINAL UNIT CONNECTOR J2 ARE BELOW VALID RANGE OR OPEN -- CONTINUED 0067 00 CONTINUED FROM STEP B 1.   Disconnect wiring harness 4W504 from remote terminal unit, boom shutoff valve, hoist winch and wiring harness 2W505 (WP 0680 00). 2.   Check wiring harness 4W504 using table below. Place one multimeter lead on a pin in the FROM column and the other lead on the corresponding pin in the TO column. Check for continuity. FROM TO CONNECTOR/PIN CONNECTOR/PIN P1--D P2--1 P1--E P2--2 P1--F P2--3 P1--Backshell P2--Backshell P1--G P3--1 P1--H P3--2 P1--J P3--3 P1--Backshell P3--Backshell P1--K P4--1 P1--L P4--2 P1--M P4--3 P1--Backshell P4--Backshell P1--P J1--P P1--R J1--R P1--S J1--S P1--Z J1--T P1--T J1--U P1--U J1--V P1--V J1--W P1--Z J1--X P1--W J1--Y P1--X J1--Z P1--Y J1--a P1--Z J1--b P1--a J1--c P1--b J1--d P1--c J1--e P1--j J1--f P1--d J1--g P1--e J1--h P1--f J1--i P1--j J1--j P1--g J1--k P1--h J1--m P1--i J1--n C CONTINUED ON NEXT PAGE