Technical Start stop and triangle light flares and then dash light fuse pops - why?

[Hapar80]

Every time I start the car, stop and start light and the triangle warning lights up. Next time I start the car, all dash lights disappear and the fuse for that pops.

Anyone know what the problem is?
A new battery has been installed and this doesn’t show in the car logs.

Anyone else had this issue?
Many thanks
Fiat 500, Turbo Air 2011

 

[John202020]

Prime candidate rear hatch wiring
What message bar stop start comes up on the dash?

 

[Hapar80]

Start and stop unavailable, S&S light and triangle light up, they stay lit until next time I start the car and then all dash lights go off. No speedometer, no dash lights/warnings etc.

 

[Hapar80]

Prime candidate rear hatch wiring
What message bar stop start comes up on the dash?

Pa. The car’s rear hatch door doesn’t work manually, only with key. Could this be linked?

 

[chris3234]

Pa. The car’s rear hatch door doesn’t work manually, only with key. Could this be linked?

Definitely sounds like the wiring could be faulty then get it looked at asap before it damages something else

 

[steveras57]

Consensus appears to be you should check your hatch wiring as a first point of inspection!

 

[jrkitching]

Consensus appears to be you should check your hatch wiring as a first point of inspection!

Yep.

Disconnect the battery first. If the wiring is damaged, even just opening the hatch before doing so could make the problem worse.

 

[steveras57]

Yep.

Disconnect the battery first. If the wiring is damaged, even just opening the hatch before doing so could make the problem worse.

good call! and timely reminder to us all!

 

[John202020]

Whatever you do, DON'T be tempted to put a bigger rating fuse in.

 

[steveras57]

Whatever you do, DON'T be tempted to put a bigger rating fuse in.

Good reminder John !( admit it weve all been tempted )Nothing quite like the smell of burning wiring to let you know youve done something wrong!!!! eh!!!

 

[Hapar80]

I checked the hatch wiring and it is a complete mess. Several wires exposed and touching each other, one thicker black one completely split in half.
I have ordered a hatch wire replacement but did isolate each lead with tape and tried again. No issues and no fuses popping. Back door still doesn't' open manually, only with electronic key but I am assuming this is due to faulty part, not wires...

Can one change the hatch wires themselves or is this better left for pros?

Many thanks guys!

 

[steveras57]

If your competent with a soldering iron have space and time + patience then you can splice the repair kit into the loom yourself !.
The key is work methodically and DONT rush it!- have some heat shrink tubing ready along with GOOD QUALITY insulating tape! dont forget to slip the heat shrink over the wire BEFORE you solder it in!.
I did not heat shrink ALL the wires as i thought it could make them inflexible so did every other one so to speak.
I found it a good idea to write myself a check list of all the wire colours so i could tick off as i went along!.
This time of year if you DONT have a garage or warm /dry space to work in then plan carefully and dont spent to long outside working or your likely to make a mistake! take a break every hour minimum!.
I made sure that the plastic pipe that feeds the rear washer was routed outside the new spiced in loom for convenience and to make the loom a (little) more flexible!, also keeping any potential water leaks away from the wiring! hope this helps.

 

[Hapar80]

If your competent with a soldering iron have space and time + patience then you can splice the repair kit into the loom yourself !.
The key is work methodically and DONT rush it!- have some heat shrink tubing ready along with GOOD QUALITY insulating tape! dont forget to slip the heat shrink over the wire BEFORE you solder it in!.
I did not heat shrink ALL the wires as i thought it could make them inflexible so did every other one so to speak.
I found it a good idea to write myself a check list of all the wire colours so i could tick off as i went along!.
This time of year if you DONT have a garage or warm /dry space to work in then plan carefully and dont spent to long outside working or your likely to make a mistake! take a break every hour minimum!.
I made sure that the plastic pipe that feeds the rear washer was routed outside the new spiced in loom for convenience and to make the loom a (little) more flexible!, also keeping any potential water leaks away from the wiring! hope this helps.

I would love to be competent but I will probably fail this one...I can't find a detailed enough video for me online. Will take it to a garage. Thank you for your amazing response!

 

[Hapar80]

Thank you everyone!