car wiring loom

[duncan webster 1Participant @duncanwebster1]

The cabling which goes from the main body to the door on my car has started to give way due to repeated flexing. It has over 20 cores just to control the window, central locking and mirror. Model railways would achieve this with 2 cores via the Direct Cab Control. Even if you don't want to send control signals down the power line I would guess that 4 cores would be enough. Are car manufacturers still in the stone age?

[duncan webster 1Participant @duncanwebster1]

[Dave HalfordParticipant @davehalford22513]

That's why they invented CANbus

[noel shelleyParticipant @noelshelley55608]

Whilst dave is right it is often easier to fix a broken wire rather than a computerised system. Noel.

[Dave HalfordParticipant @davehalford22513]

Posted by noel shelley on 03/03/2023 15:56:23:

Whilst dave is right it is often easier to fix a broken wire rather than a computerised system. Noel.

Exactly

[Michael GilliganParticipant @michaelgilligan61133]

Posted by duncan webster on 03/03/2023 15:22:24:

[…]

Are car manufacturers still in the stone age?

.

No, [see Dave Halford’s post]

Having sorted that, years ago, they’re busy now … designing silly toys, as per my BMW thread

MichaelG.

[duncan webster 1Participant @duncanwebster1]

Posted by noel shelley on 03/03/2023 15:56:23:

Whilst dave is right it is often easier to fix a broken wire rather than a computerised system. Noel.

I've had computers since the BBC (over 40 years?) and computer driven engine management systems for many years. The only problems I've had with any of them have been mechanical, broken wires, hard disc bearings etc. Further research on interweb shows that door wiring loom failure is a common fault on my model of car, fortunately I've tracked down a pattern part at 1/4 the cost of the manufacturer's. The break is too close to the plug to permit a crimp repair. Now wait for the weather to warm up a bit before I fit it, fiddly jobs outside when your fingers are freezing cold is not my idea of fun

[Michael GilliganParticipant @michaelgilligan61133]

In this cold weather … it might be worth staying indoors and having a look at this:

**LINK**

https://www.csselectronics.com/pages/can-bus-simple-intro-tutorial

Clever … and getting cleverer

MichaelG.

[HopperParticipant @hopper]

If the cabling to your door is giving way, how old is your car? Maybe it is from the Stone Age. In tech world that is about five years, as I just found out when trying to get my phone repaired after the on/off button got sticky.

[noel shelleyParticipant @noelshelley55608]

Having read Michaels link I;m glad I have broken wires ! I understand them and with simple equipment can find and fix faults. Whilst I may be a dinosaur, I hope I'm not a Luddite. Having seen £250,000 macine stand idle for 6 weeks because it was so clever that the experts and technicians could not understand what was wrong, I'll stick with the old tech ! Agriculture and plant have yet to solve simple problems like rat and mice proof wiring, 1 wire and it's crippled ! Once started an old diesel needs no electrics ! Noel.

[Phil PParticipant @philp]

I had the same problem with the drivers door loom on my Skoda Yeti, apparently they had originally made them a tad short and they failed near the hinge post. I could not even lock the car when it failed.

I was staggered at how much "stuff" was inside the door when I watched the new cable being fitted, the door even had its own ECU along with alarm system, heated mirror, moving mirror, window motor, door locking for drivers and/or other doors, under door lighting etc.

I kept the old door loom as it had a good range of different coloured wires which came in very handy when I made a new loom for a 70's motorcycle.

Phil

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