Front Washer not working

[Colton Collier]

Searched and searched without any resemblance of an answer

2015 EL

Rear washer works fine

When you push the front wash button the wipers move like normal but the relay doesn't trip and the pump doesn't run

Pump has been replaced
MFS has been replaced
no bad fuses or relays I have swapped to make sure
Lines aren't clogged I've blown them out and swapped the rear line with the front line and fluid sprays with no issue

Idk if there is a module or something that isn't talking but i'm at my wits end.

I've seen this posted a couple times but everyone keeps saying the same thing with no solution to the problem

 

[mrbadwrench]

I don't have an answer for you, but maybe I have a clue. I disconnected my rear wiper motor for a while to stop a parasitic draw and the front washer wouldn't work while it was unplugged. After I plugged the rear wiper motor back in, it worked.

 

[Colton Collier]

I'll try it when the wife gets back from town but I couldn't imagine that being an issue since the rear works as it should. Thanks for the response this is pretty irritating and I'm tired of shotgun blasting parts for something as simple as this lol

 

[07navi]

It's probably in those big red shop manuals for that year. Everyone that works on their truck should have those.

 

[Colton Collier]

It's probably in those big red shop manuals for that year. Everyone that works on their truck should have those.

I've only had it for a month and it's the wife's. Haven't gotten to the service manual yet. This post was for assistance with either a pinpoint test or gem diagnostics

 

[07navi]

I've only had it for a month and it's the wife's. Haven't gotten to the service manual yet. This post was for assistance with either a pinpoint test or gem diagnostics

The manual will assist you.

 

[TheMagicSchoolBus]

I've only had it for a month and it's the wife's. Haven't gotten to the service manual yet. This post was for assistance with either a pinpoint test or gem diagnostics

You and I are rowing the same boat I see.

 

[JoJoDaClown]

I've only had it for a month and it's the wife's. Haven't gotten to the service manual yet. This post was for assistance with either a pinpoint test or gem diagnostics

Did you ever get this resolved?
I'm having the same issue. I've replaced the motor, replaced the multifunction switch on the column, inspected the connectors and contacts/wires at the column, rear works fine, fuse is good, relay is correct and good. No pump activity when front washer fluid button is pressed, but wipers move.

 

[JoJoDaClown]

I've gone through the schematics and determined that I've replaced or checked everything in the circuit aside from what's internal to the windshield wiper motor assembly module. Inside that design is the front washer pump relay. I will be livid if this actually is the root cause and Ford forces you to buy an entire assembly to address a relay failure. Nevermind the fact that a relay should honestly last longer than the vehicle.

 

[Hamfisted]

I've gone through the schematics and determined that I've replaced or checked everything in the circuit aside from what's internal to the windshield wiper motor assembly module. Inside that design is the front washer pump relay. I will be livid if this actually is the root cause and Ford forces you to buy an entire assembly to address a relay failure. Nevermind the fact that a relay should honestly last longer than the vehicle.

Prepare to be livid ....







.

 

[JoJoDaClown]

Well, it wasn't the front motor assembly. All associated relays and fuses that are in the fuse panels are working and good. About the only thing that is left is the rear motor assembly.
Effectively, the circuit is laid out such that there's 1 pump for the front and rear. The polarity is reversed when using the rear sprayer vs the front. There are relays in each motor to engage the pump when the circuit is completed by pressing/turning the associated switch on the multifunction switch. Hypothesis: If the rear washer relay internal to the motor is stuck, then it's preventing the front circuit from completing.
I've ordered a rear motor. I'll reply once that's done.

 

[JoJoDaClown]

TBD

 

[poncchorelly]

did it work?

 

[JoJoDaClown]

did it work?

Negative. I'm still troubleshooting. I have all diagrams, schematics, and troubleshooting steps from Ford. I was going to work on this today and was checking forums for any updates.

 

[poncchorelly]

so the front washer circuit goes through the rear wiper motor? I wonder if there is a broken wire where the rear hatch pivots?

 

[poncchorelly]

check the #1 and #4 relays one takes a 4 prong one takes 5 prong. mine works now.

 

[JoJoDaClown]

so the front washer circuit goes through the rear wiper motor? I wonder if there is a broken wire where the rear hatch pivots?

The washer pump circuit involves the pump, the multifunction switch on the steering column, the front wiper motor assembly, and the rear wiper motor assembly. The front and rear wiper motor assemblies have internal relays for the pump. When the multifunction switch commands spray it completes the circuit to actuate the relay and enables +12V or -12V to the pump depending on front or rear, which spins the pump the associated direction, thus pumps the fluid to the appropriate end point.

My assumption is a pinch or a break. I also have an intermittent rear parking sensor that flashes the "bad parking sensor" message with bumps and disappears when turning right/ steady on when turning left. I believe it's probable the issues are associated. Now I just need to find the location beyond "This wire loom, somewhere between the front of the vehicle and the back of the vehicle".

 

[JoJoDaClown]

check the #1 and #4 relays one takes a 4 prong one takes 5 prong. mine works now.

I'll check just for sake of certainty, but it used to work a few years ago, then stopped working.... and nobody has touched the relays

 

[poncchorelly]

well did you check the relays

 

[JoJoDaClown]

well did you check the relays

I did, but 1 and 4 both appear to be the same PN and 4 pin. So I'm trying to find information on what the relays SHOULD be.