Headlight washers won't work

[laalves]

Hi all,

 

The headlight washers on my 996TT MY02 won't work. Fuse is fine. What should I be looking at first? Pump under the left fender (take left wheel out, remover plastic liner?). Any hints? 

[jpflip]

Can you hear the pump starting? If you think your pump is at fault, according to the repair manual page 1121, you have to remove the reservoir to reach the pump…Never did this job on the TT…. Yes it is behind the left wheel housing liner….

[laalves]

I managed to order one new pump off ebay for 15€ so before I start disassembling things I have the part on hand. I'll replace it straight away and see if it works. If not, my next suspicion will be the relay which if I try to source it as Porsche's P/N 996.618.113.00 will cost upwards of 150€ but if I source it as Bosch's 1 397 328 015 it'll be 20€.

[jpflip]

I got 996 618 103 00 has a part# for the headlight washer relay??? (MY2002) Fuse C9 is the fuse for the headlight cleaners ….

[laalves]

I'm sorry, I don't understand what you are saying....

[jpflip]

If you look at the wiring diagram the relay part# is 996 618 103 00 not the one you have :996.618.113.00 ??? You said you look at the fuse, C9 is the fuse to look for. I just hope you look at the proper one….

[wvicary]

Are you operating the washers correctly? I know it might be a dumb questions but I've had many people who don't realise how they operate.

[laalves]

Headlights on, windshield washer on, should operate the headlight washers...

[laalves]

I got 996 618 103 00 has a part# for the headlight washer relay??? (MY2002) Fuse C9 is the fuse for the headlight cleaners ….

Interesting... The 2010 PET which I used shows this to be 996.618.113.00. I did check the right fuse. Anyway, just got the pump in the mail and will try it tonight.

[Loren]

996 618 113 00 is the correct part number for the headlight washer relay in a MY2002 996TT (per PET Feb 2015)

[laalves]

996 618 113 00 is the correct part number for the headlight washer relay in a MY2002 996TT (per PET Feb 2015)

There's already a 2015?

[laalves]

Right, just took the tank out (pain in the neck), checked the pump and its plug. The pump tested fine with 12V outside the car, so that was not it. Since I had a new on hand, I replaced it anyway. The plug is the interesting bit: the two contacts are shorted, 0 ohm. When I remove the corresponding relay it reads open circuit.

 

The relay itself, outside the car is shorted between P and 31, which looking at the attached diagram, only makes sense in case of a defective relay.

 

What do you guys think?

996TT02 Wiring extract.pdf