T.C.WITHEXTENDER– STRAIGHTTRUCKAPP.
VERSION1.04
06/07/2011
4. RemovetheharnessplugfromtheTrailCharger. (SeeFigure1) Checkthevoltagereadingattheinputpin(E1)
andtheliftgatebatterynegative(H).Thisshouldbethesameasthetruckbatteryvoltage.(i.e.voltagebetween
positive(A)andnegative(J))
TractorBatter yVoltage:________ (E1)PinVoltage:__________
Ifthetractorbatteryvoltageandthevoltageat(E1)arenotthesame,checkforthefollowing:
A. Checkthefusecube(B)atthetruckbatteries.Ifthefuseisblown,repairthecircuitandreplacethefuse.
Recheckthevoltagebetween(E1)and(H)asinstep4.Thisshouldbethesameasthebatteryvoltage.If
yes,skiptostep5.Ifno,continuetostepB.
B. CheckVoltagebetween(C)and(H).Thisshouldbethesameasthebatteryvoltage. Ifyes,continuetostep
C.Ifno,repairthewirebetweentheredinsulatedstud(C)andthefuse(B)andcontinuetostepC.
C. CheckVoltagebetween(E1)and(H).Thisshouldbethesameasthebatteryvoltage. Ifyes,skiptostep5.If
no,repairthewirebetweentheredinsulatedstud(C)and(E1)andcontinuetostepD.
Ch k th d iitb hki th lt bt (H) d (J) Thi hldb lt If
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yes,
continuetostep5.Ifno,repairthewirebetween(H)and(J)thencontinuetostep5.
5. Verifythatthevoltagereadingbetweentheinsulatedjunctionstud(C)andtheliftgatebatterynegative(H)is
greaterthan13.3volts(enginemustberunning)beforecontinuingtothenextstep.
A. Theredlightonthemoduleshouldbeon.Ifyes,continuetostepB.Ifno,verifythattheredwire
betweenthemodule (D)andtheinsulatedjunctionstud(C)isnotdamaged,broken,orpinched.Also
verifythattheblackwirebetweenthemodule(D)andtheliftgatebatterynegative(H)isnotdamaged,
broken,orpinched.Iftherearenodamagedwires,replacethemoduleandthenstartoveratthe
beginningofstep5.
the harness plug removed check the voltage reading
between the ignition pin (E4) and the liftgate
.
,
batteryground(H).Thisshouldreadwithinonevoltofthebatteryvoltagebetween(C)and(H).Ifyes,
moduleisoperatingandthegreenandredLEDlightsshouldbeon.IftheLEDlightsarenotonandthere
isnovoltagebetween(E4)and(H),removethe
redleadfromthemodulethatat tachedtothebattery
positive(G)andthenreattach.BothLEDlightsshouldturnonforonesecondandthenturnoff.This
meansthemodulehaspower.Ensuretheredandblackleadsareonthecorrectbatteryterminal.Ifyes
andtheLEDlightsdonotcomeon,replacethemoduleandthenstartoveratthebeginningofstep5.
221N.14
th
Street,Rogers,AR72756P: 479.621.8282F: 479.621.9595
www.purkeysfleetelectric.com
6.Withtheharnessplugremoved,checkthevoltagereadingbetweenthegroundpin(E3)andtheliftgatebattery
positive(G).Thisshouldbethesameasbatteryvoltage.Ifyes,continuetostep7.Ifno,repairtheleadfrompin
(E3)toliftgatebatterynegative(H).
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