The wiper motor uses G112, if you haven't already you might check it.

The wires can corrode under the eyelet crimp and wire insulation where you can't see it.

The fix is cutting off the old eyelet, stripping the wires back to good metal, and adding a new eyelet.

 

Thanks, I will have a look.
At least I have the wiring diagram.

 

Thanks Sandstone. It was a bad earth lead. Tried cleaning it but no luck. As a temporary solution- have installed a separate earth lead to the motor and bingo works fine. I will get a new earth spade over the week and change it.
Thanks again.

 

You're welcome, glad you got it sorted and thanks for the update.

 

Questions.. did your dash lights ever light up like a Christmas tree when wipers were failing? AND does anyone have the diagram for the other ground wire on the others side of the vehicle that I know causes issues. I think it connects down to the left of the engine

 

...AND does anyone have the diagram for the other ground wire on the others side of the vehicle...

G110, G111, and G112 ground location and wiring diagrams

G110 G111 & G112 G111 G112

www.jeeppatriot.com

 

I just replaced the terminals on ground connection G110. I wished it was as simple as the drawing from the FSM. In the process of trying to strip the existing tape off I found this white firm plastic part protruding from the harness. Can anybody tell me what it is or it's purpose? I assume it is just a spine to keep the harness from flexing. I did this in an attempt to get my wipers to work right again. They work but don't turn off or park. Already did G111 & G112 and have replaced the wiper and headlamp switches, wiper motor, did the TIPM reset and the battery terminal clamp together trick. Any thing else before a dealer visit? This is on a one-owner (me) 75xxx mi. vehicle. At least my remote start works again.

 

They work but don't turn off or park.

If the wiper motor turns on with the switch, and the various settings seem to work but the switch won't turn it off, to me that would tend to indicate the ground is good.

So if you've replaced the wiper switch (right side) and the left multi-function switch (lights, etc.) with the steering control interface module that talks to the cluster (via LIN bus), then it's down to the TIPM not getting the turn-off message or it is getting the message, but isn't responding correctly.

This is where a software tool (like AlfaOBD, jscan, etc.) that can send messages down the CANbus to the TIPM to turn the wipers on and off can help. If it works like it should, then you know the problem is further upstream.

Per the service manual:
======================
"The microprocessor-based Steering Control Module (SCM) (2) utilizes integrated circuitry and information carried on
the Controller Area Network (CAN) data bus along with several hard wired analog and multiplexed inputs to monitor
both the right and left multi-function switches. The SCCM uses a Local Interconnect Network (LIN) data bus for
exterior lighting and wiper functions. The LIN data is sent to the Cab Compartment Node (CCN) and the CCN then
sends it out on the CAN data bus (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES/COMMUNICATION
- DESCRIPTION - CAN BUS). The SCCM is available for service replacement as a unit or each individual
component:
² Clockspring (with integral Steering Angle Sensor if equipped)
² Left Multi-Function Switch
² Right Multi-Function Switch"

=======================

 

You're right, the purpose of that white thing is just for support. You don't want wires there to be able to move around at all or they might get tangled up in the moving belt. If replacing G110 didn't fix your problem then the ground wire might be broken somewhere else. You could try splicing a new ground wire in, close to the motor.

 

The wipers and washers work but intermittent doesn't and they just stop when I wiggle the stalk to turn them off. Old and new both work the same. I have to use the mist to park them, more than once to time it at the bottom. I wasn't aware of the Steering Control Module. Where is it located? In the column I assume but how is accessed? Does anybody have a diagram showing it's location or a picture of it for reference? Wiring diagrams aren't very specific. I'd like to get this figured out before winter if I can. I'll try a separate ground to see if that will work. Thanks for the advice.

 

The wipers and washers work but intermittent doesn't and they just stop when I wiggle the stalk to turn them off.

Sounds like you may have a bad connection on the jumper cable harness that connects the wiper switch to the SCM.
If so, adding separate ground wire to the motor probably won't make any difference.


The SCM/steering control module (#2) is inside the housing of the left multi-function switch (#1).