Interior lights don't work

[guffman69]

Anyone able to help.
Map light, climate control lights, gear shifter light, radio light an boot light aren't working, have checked fuse inside car and is fine also check engine fuses and nothing seems to be blown, anyone have any other ideas at all?
Thanks

[sleeper]

sorry, no
if you`ve checked your fuse that would be the limit of my expertise, so u might have to take it to an autoelectrician.

[r00tc4u53]

Haven't changed any other bulbs recently? tail\brake etc or put in some LEDs in anywhere that could be disrupting the circut?

[himynameisdaniel]

check ETACS ECU fuses located in glovebox.
Fuse 8 - should be around 7.5A

if all your fuses are good then you must have shorted something. this means tracing all wires. to find the culprit.

Can you narrow it down a little more?
List current mods, and what you were doing when this occurred?

[guffman69]

No nothing modes in over a year, but map light was playing up, so I checked the fuse, when I put it back in I lost everything

[Jason-VR]

Sounds like you blew the fuse when you put it back in.
Take it out and replace it as sometimes they look okay but aren't.

[himynameisdaniel]

re-check the fuse with the battery disconnected.

either get a multimeter and check + voltage on both sides of the fuse, then keep going along the path until you notice a drop in voltage. or take it to a auto electrician\Mitsubishi.

[guffman69]

Yeah already checked and tool fuses out and checked with a meter and all ok

[r00tc4u53]

When you say the map light was playing up, how was it playing up? Have you tried taking the bulbs out and see if the others come back on? could there be a broken\loose connection in or behind the map light unit?

[himynameisdaniel]

As a rough guide you will need to trace from the bulb->terminal connector->Switch->source connector->fuse->ETACS->Battery and measure resistance along the entire way.

Things you should also check for operation.
power window operation
Central locking
Fan Blower
A\C operation including heat
electrical mirrors (also electrical folding mirrors if equipped from factory)
Wipers including speed sensitivity (include test for rain sensing if applicable)
Keyless operation (if equipped)

It may only be affecting specific paths so by checking the above operation it really narrows down what you need to look for.
My money is on either ETACS or the fusebox itself (which clips onto the ETACS ECU) if you have successfully tested your connectors and fuses and bulbs.
As the connection either side may have a significant damage to it which *may* increase resistance thus preventing low voltage accessories to work. something like this is possible if there was a short. look for possible discoloration of the connectors or paths as a potential visual indicator but really from now on your multi meter is your only way forward.

[zedd82]

Check all the other fuses in both fuse boxes. Sometimes it can be another fuse that has blown even though it would seem like that fuse has nothing to with the other ones.

[guffman69]

Mitso confirmed its the etacs module need replacing anyone have a second hand one or know where to get a cheap one

[himynameisdaniel]

try wreckers.

It needs to be coded for your vehicle though which has to be done with the MUT III