42 Series Step

FIGURE 4: Wiring diagram for step with control unitFuse blockIMPORTANT:The yellow wire must go to aterminal marked IGN (ignition)or to another terminal that is hotwhen the ignition is turned on.Chassisground12 volt DCbatteryVehicle Wiring20 amp fuse orcurcuit breaker required6 amp maximum fuse orcircuit breaker requiredBatterydisconnectbox/switchIMPORTANT:If the switch is'OFF' the stepwill notoperate.Step Wiring16 AWG purpleoptional step light switchmay be connectedto porch light(see Inset 4A)12 AWG greenground to step topControlunitNormally OPENmagnetic door switchFour-wayconnector16 AWG brown16 AWG yellow12 AWG red16 AWG white5 amp maximum fuse orcircuit breaker (not supplied)ChassisgroundPowerswitchNot used12 AWG green ground wiremust be securely attached tothe chassis for step to operateMotorassemblyTwo-wayconnectorINSET 4A - Wiring step light toporch light switch: Understep light can bewired directly to the RV porch light switch. If youchoose to do this, a 5 amp maximum fuse orcircuit breaker is required and can be installedin either of two locations as shown in thewiring diagram below.Fuse location1 amp maxor circuit breakerrequired(not supplied)ToBatteryBattery disconnectbox/switchIMPORTANT: If theswitch is 'OFF' thelight will not operate.Porch light switchAlternatefuse locationPorch lightButt connectorStep LightControl UnitPurple wirefrom Control Unit9. To test the Ignition Override feature, extend the step as in Step 8. With the stepextended, connect the white wire to the battery's positive (+) terminal and attach the brownwire to the battery's negative ( _ ) terminal. Next, touch the yellow wire to the battery'spositive (+) terminal. The step should retract. Remove the brown wire and the step shouldextend.10. To test the Override Switch, with the step retracted, touch the brown wire to thenegative ( _ ) terminal to retract the step. While holding the brown wire to the negative ( _ )terminal, touch the shite wire to the battery's positive (+) terminal, and remove the yellowfrom the positive (+) terminal. The Step will stay retracted. Now, remove the brown wire.The step should extend. Now touch the brown wire to the battery's negative (-) terminaland the step should stay extended.11. If any of the step functions do not work, the source of the malfunction is either inthe control unit and/or the motor. Proceed to the "Testing the Motor" section on Page 9.If all of the step functions do work, the malfunction is either in the door switch, powerswitch, or the vehicle wiring. Proceed to "Testing the 4-way Connector" section.Page 8 / General Service NotesKwikee 42 Series Step