TRAILCHARGERWITHEXTENDER
VERSION1.04
06/07/2011
4. RemovetheharnessplugfromtheTrailCharger. (SeeFigure1) Checkthevoltagereadingattheinputpin(E1)
andtheliftgatebatterynegative(H).Thisshouldbethesameasthesourcevoltage.(i.e.batterysourceatfront
oftrailer,positive(A),negative(J))
SourceVoltage:________ (E1)PinVoltage:__________
Ifthesourcevoltageandthevoltageat(E1)arenotthesame,checkforthefollowing:
A. Checkthefuse(B)belowthenosebox.Ifthefuseisblown,repairthecircuitandreplacethefuse.Recheck
thevoltagebetween(E1)and(H)asinstep4.Thisshouldbethesameasthebatteryvoltage.Ifyes,skipto
step5.Ifno,continuetostepB.
B. CheckVoltagebetween(C)and(H).Thisshouldbethe sameasthebatteryvoltage. Ifyes,continuetostep
C.Ifno,repairthewirebetweentheredinsulatedstud(C)andthefuse(B)andcontinuetostepC.
C. CheckVoltagebetween(E1)to(H).ThisshouldbethesameastheBatteryvoltage. Ifyes,skiptostep5.If
no,repairthewirebetweentheredinsulatedstud(C)and(E1)andcontinuetostepD.
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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
verifythattheblackwirebetweentheExtendermodule(D)andtheliftgatebatterynegative(H)isnot
damaged,broken, orpinched.Iftherearenodamagedwires, replacethemoduleandthenstartoverat
thebeginningofstep5.
the harness plug removed check the voltage reading
between the ignition pin (E4) and battery
.
,
ground(H).Thisshouldreadwithinonevoltofthebatteryvoltagebetween(C)and(H).Ifyes,moduleis
operatingandgreenandredLEDlightsshouldbeon.IftheLEDlightsarenotonandthereisnovoltage
at(4)and(H),removetheredlead
fromthemodulethatat tachedtothebatterypositive(G)andthen
reattach.BothLEDlightsshouldturnonforonesecondandthenturnoff.Thismeansthemodulehas
power.Ensuretheredandblackleadsareonthecorrectbatteryterminal.IfyesandtheLEDlightsdo
notcomeon,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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