Rear window wiper / No power

Hello

Golf 3, 1Z, Year of manufacture 6/96, 162 TKM
No interval circuit, Relay 19, Search function checked.

For a long time, I have been having problems with the windshield wiper.
Initially, he only ran over the windshield once / without reversing.
then 1/3 of the way and only 10 CM of the rear window at the end.
Motor checked, it runs normally back and forth - connected directly to the battery.
But there is no tension on the power supply to the rear motor (3-pin connector).
Relay 19 has been replaced, but there is no improvement.
Cable inspected - intact.

Is it possible that the steering wheel lever switch is broken?

Front windshield wipers function normally.

How can I test the switch?

In the past, about 3 months ago, after I picked up my car from the body shop, {WHEN} I gently moved the steering wheel, both the front and rear windshield wipers {BROKE}.
Had trouble turning it off. The entire system crashed.
After 2-3 weeks, things have returned to normal.

And now, no tension on the rear window wiper connector.
Circuit Breaker No:5, Wisch-Wasch, is OK.

What else should I check?
Please help.

Greetings to everyone

Jarek

Hello Jarek!

Hm, on the rear window wiper, there are three wires: one with ground, one with constant power, and a wire that sends a signal from the relay to activate the wiper. Is the signal being sent?

Hi, Peter

Hello Peter

I don't have a starting impulse, but I can't measure the duration either.
The plug/3-core/is simply without insulation.

There is a main connector in the rear door where 4 wires come out. I can measure the voltage there. And these 3 wires run from here to the rear wiper connector, but there is nothing to measure there.

and additionally, there is also a simple plug with thicker cable/I would say ground.

As far as I can see, I'm missing the "Start" and "Duration Plus" features.
Where is the error?

Greetings, Jarek

Do you perhaps have a cable break? The cables pass through a rubber grommet from the rear door into the car. (Near the hinges)
Please check the cables to make sure they are in good order.
Had the same problem once on a Golf 2, it was then a broken cable. Ev. hilft Dir das.

Hi Jarek,

A green/white cable is run from the windshield wiper switch on the steering column. This provides the signal for the rear wiper. At the same time, the washer pump runs as long as the lever is operated. If this is the case, a problem with the steering column switch can be ruled out. To also rule out a voltage drop in the washer pump, disconnect the pump and check the function of the rear wiper again by measuring the voltage on the aforementioned cable. Is there a 4-way connector on the switch? There are 2 fuses responsible for the rear wiper: S4 for power supply - continuous power and S8 for the start signal and for the front wiper motor. Will the thick cable be for the rear window heater?


Best regards, Robert

Based on my experience, there is a cable break in the rear left tailgate. Golf III 96, 160,000 km.

I have already repaired this on 3 Golfs (although all variants). As Julian already wrote: Remove the rubber grommets and check the cables. Most often, the brown ground cable is also affected. Sometimes, however, it can be difficult to solder, as the copper wires are completely black and oxidized.

Hello

Thank you for all the tips.
I have the G 3 variant:
I have observed that:
Fragile cables in the rubber sheath / thick brown ground cable at several points + Green/White cable - impulse generator

Additional: Fuse No:4, Dauerplus
Initially, it was not visible, but after several trips, the break in the cable was finally discovered.

After the complete wiper motor has been assembled, the wiper only moves in sections.
When switching to continuous operation, fuse number 4/Continuous Power is always blown.
Then, I removed the wiper motor from the housing and discovered that a lot of water had leaked from the gearbox.

I estimate that the syringe nozzle is leaking and the water is getting into the gear, which is causing the entire mechanism to malfunction and trip the safety.
But in an electric motor, there is no water, everything is very clean.

Also, I also removed the electric motor and performed a spray test.
Water comes from the nozzle and also from the gearbox mechanism, where the engine shaft enters.

Therefore, I conclude that the syringe needle is leaking.
Or am I wrong?

Lubricating the spindle where the wiper sits has not resulted in any improvement in terms of smoothness.

Therefore, a new unit is needed.

Thank you to everyone.

Greetings, Jarek

Hi,
and if you splice the section of the cable tree in the bend area with very flexible conductors, you will have a long period of peace with this weak point.

Greetings

Andy

Hi Jarek,

Now, the nozzle is not a good idea: Order number 1H6955985 € 4,82
The engine costs around €120. In this case, it's best to use the internet. Water entering the gearbox is more likely to come in through the outside, through the housing/bore of the shaft, rather than through the shaft itself. Sometimes, the M16x1.5 thread is already damaged, and in that case, the seal is also useless. When I replace a broken cable, I immediately replace the entire cable in the cover, and I push the crimp connector towards the ceiling so that the new cable can be properly seated. Disassembling the gearbox is pointless; instead, flood it with "Power.Grease" from Innotec.

Best regards, Robert