Menu toggle

Hardtop heated rear screen problems

B

Bobbybox

New member
Hi,

I've had the hardtop on since late November and have not had reason to activate the heated rear screen until now.

Needless to say it won't work. So far I have checked:
[1] The two fuses that are mentioned in the fuses guide (enclosed within the fusebox panel) that relate to heated rear screen
[2] The switch itself lights up when i press it (I guess there is a relay somewhere, With the Hardtop off the heated screen in the soft top works fine...if I recall)
[3] The contacts on the left hand hardtop "prong" (cleaned some goop off these seem pretty shiny now...)
[4] The contacts in the socket for the left hand hardtop "prong"

Any thoughts?... I guess the wiring could be knackered...is there a diagnostic check that can be done?

B
 
You will need to carry out a continuity check of the heating element and the wiring on the hardtop. Check at the contacts first and then if this proves there is no continuity then you will need to get 'inside' to see if the cable is detached from the actual element itself.
Perhaps Richard may be able to provide more specific instruction.
 
Sorry - can't find anything in the manual. The system is just hard wired electrics, so no control module and no computer diagnostics.

There is a relay on the panel in the driver's side footwell. On the carrier it is in the top row, 4th from the left. Does it click when you press the switch? Also, are the door mirrors heating? They are on the same circuit. Other than that, Peter is correct - get to work with a meter.
 
OK..So I have some time this weekend to get the hardtop off and play around with the multimeter.

When the top is off the electrical contacts for the heated screen are exposed. Is there a microswitch or such like that needs to be engaged for the current to flow or can I simply switch on the circuit and expect to read a current accross the contacts with the meter?

In addition, I will also test for continuity of the heating element in the hardtop with the same multimeter.

B
 
You must log in or register to reply here.

Posts made and opinions expressed are those of the individual forum members

Use of the Forum is subject to the Terms and Conditions

Disclaimer

The opinions expressed on this site are not necessarily those of the Club, who shall have no liability in respect of them or the accuracy of the content. The Club assumes no responsibility for any effects arising from errors or omissions.

Porsche Club Great Britain gives no warranties, guarantees or assurances and makes no representations or recommendations regarding any goods or services advertised on this site. It is the responsibility of visitors to satisfy themselves that goods and/or services supplied by any advertiser are bona fide and in no instance can the Porsche Club Great Britain be held responsible.

When responding to advertisements please ensure that you satisfy yourself of any applicable call charges on numbers not prefixed by usual "landline" STD Codes. Information can be obtained from the operator or the white pages. Before giving out ANY information regarding cars, or any other items for sale, please satisfy yourself that any potential purchaser is bona fide.

Directors of the Board of Porsche Club GB, Club Office Staff, Register Secretaries and Regional Organisers are often requested by Club members to provide information on matters connected with their cars and other matters referred to in the Club Rules. Such information, advice and assistance provided by such persons is given in good faith and is based on the personal experience and knowledge of the individual concerned.

Neither Porsche Club GB, nor any of the aforementioned, shall be under any liability in respect of any such information, advice or assistance given to members. Members are advised to consult qualified specialists for information, advice and assistance on matters connected with their cars at all times.

Porsche
Lockton
Pirelli
Officially approved
Oracle Finance
WEX Esso
Collecting Cars
Archant Dialogue
Back
Top