Head unit wiring clean up after wire-twister

While I was fixing indecisive heater control servo in a Toyota Ist, I discovered a wiring horror left a by a wire-twisting moron:


headunit_wire_twisted_by_moron_1

headunit_wire_twisted_by_moron_2
In my opinion wire twisting from above is lazy, stupid, and dangerous! Unless, of course you want to set your car on fire. They didn’t even bother to properly apply insulation tape.

The Fix.

Untangling the mess:
wire_horror_untangling_0

Cutting off the twists:
wire_horror_untangling_1

Feeding in supporting heat-shrink:
wire_horror_untangling_2

Splicing the wires properly before soldering (a variant of Lineman’s splice, give it a gentle tug after twisting):
wire_proper_twist_0

Soldering the wires (just enough of solder, do not “blob”):
wire_proper_twist_1

Heat-shrink:
wire_heatshrink_0
wire_heatshrink_1
wire_heatshirnk_3
wire_heatshirnk_3
Loop and heat-shrink unused wires:
wire_heatshrink_2

End result:
wire_proper_connection_complete_0
wire_proper_connection_complete_1

2 thoughts on “Head unit wiring clean up after wire-twister”

  1. i cant thank you enough Sergi, ive had so much trouble trying to find out the problem of my heater not
    working. I may not be able to fix the problem myself but I can at least give the mechanic some advise or show him your site for advice and maybe save me some money in the long run Thank you so much.

  2. Hi Sergei,

    Thanks to your detailed instructions I was able to fix my heater problem for just 20 bucks. Thanks heaps for sharing your experience!

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