Don't understand Lippert coach step manual

[jswickard]

I'm confused by the trouble-shooting instructions in the manual for a Lippert coach step. Can anyone who has dealt with the electrical wiring for Lippert steps provide any clarification?


Step 1 in "Troubleshooting the System" says to measure the voltage at the large red wire at the chassis connector (which I assume is the 4 conductor plug that goes from the coach to the step), first with the step switch ON and then with the switch OFF, indicating that there should be 12VDC with the switch ON, and no voltage with the switch OFF. Their schematic shows the red wire as coming directly from the battery to the connector. How would turning the switch OFF change anything on the red power lead if the switch is on a different lead?


Step 2 talks about checking continuity between the green wire in the plug (again I presume they are talking about the 4 conductor plug) and the chassis ground connection. Their schematic shows 4 leads to the plug, none of which is a green ground wire. I can understand checking the ground, but I don't understand their reference to a green wire "in the plug."


Hopefully someone has been through this before and can point out what I'm misinterpreting.


For reference, I have a 2011 Ventana. I had also posted a couple days ago, under "Need help on strange 12VDC circuit phenomena" concerning the problem which lead me to trying to understand Lippert's manual.

["007"]

The plug I am looking at in this link shows no green wire at plug.
The green wires should all be ground wires in system.
Plug has white, red for motor and two control leads.
What is your problem and the thread provided seems to be the same problem you maybe having.

Here is a different step but same components shows same wiring.

[USMCRET]

The Lippert instructions are incorrect, specifically to your step #1. I dealt with this HERE

[lass]

Originally Posted by jswickard

In Step 1 in "Troubleshooting the System" says to measure the voltage at the large red wire at the chassis connector Step 1 of the instruction is not correct. It should read white wire rather than red.


Step 2 talks about checking continuity between the green wire in the plug You are correct, step 2 does not apply because there is no green wire in the plug. Just clean your ground contacts to insure continuity

I assume that you have Coach Step

[jswickard]

Thanks, guys, for confirming that the owner's manual is wrong. I thought it had to be, but sometimes you figure that the manufacturer couldn't be that far off base. Then you start to question everything, including your own ability to interpret what the manual really says. It's a shame that so many manufacturers invest so little time in their support literature.