reverse light switch on gearbox

mekros · Postby **mekros** » Sun May 18, 2008 7:36 am

Howdy all,

I've got ap roblem with my reverse lights, they don't light up.

Globes are fine, relay still intact, the rear brake lights work. According to the wiring diagram they go through a switch on the gearbox before spliiting off to L&R sides. The problem is I don't know where the switch is.....does anybody know?

Cheers

JBT · Postby **JBT** » Sun May 18, 2008 9:52 am

Which model MX-5 :?:

Fatty · Postby **Fatty** » Sun May 18, 2008 10:00 am

his is an na6

JBT · Postby **JBT** » Sun May 18, 2008 10:16 am

mekros · Postby **mekros** » Sun May 18, 2008 11:02 am

cheers guys for the info, and thanks Fatty for answering the question....should have stated it.

bugger, that means I have to crawl under the car, but I have to procure a couple of stands first.

Anyone know of failures to date and anything in particular I should check?

Fatty · Postby **Fatty** » Sun May 18, 2008 11:22 am

mekros wrote:cheers guys for the info, and thanks Fatty for answering the question....should have stated it.

bugger, that means I have to crawl under the car, but I have to procure a couple of stands first.

Anyone know of failures to date and anything in particular I should check?

mate, it's rather funny because i have this EXACT same problem at the moment (ie no reverse lights). we had the gearbox out recently to change the clutch so i'm assuming it's a result of that. now as luck would have it, as you know, i have a set of ramps. so you're welcome to come around and we can fix both cars at the same time! :mrgreen:

mekros · Postby **mekros** » Sun May 18, 2008 12:51 pm

I'll have to take you up on that offer, I'm hoping it's just a dodgy connection, and not something inside the box.

wun911 · Postby **wun911** » Sun May 18, 2008 1:22 pm

Are we talking about the third light on the boot...

Fatty · Postby **Fatty** » Sun May 18, 2008 1:49 pm

wun911 wrote:Are we talking about the third light on the boot...

no that is a brake light.

JBT · Postby **JBT** » Sun May 18, 2008 7:49 pm

There is a plug (where the wires sit on top of the gearbox) where the reversing switch wires connect to the main wiring system - might have been dislodged.

mekros · Postby **mekros** » Sat Jun 07, 2008 11:52 am

The esteemed Fatty and I have determined for our cars the electrical switch itself has reached the end of its life and failed. It's an easy fix, disconnect two bullet connects for the switch, and then undo it from the gearbox (had to use a shifter, guess around a 20mm ring spanner).

Parts are on order so will let you know the outcome shortly.

Fatty · Postby **Fatty** » Sat Jun 07, 2008 1:37 pm

yep they only just came into stock today (i checked yesterday and they were still on back order) , so hopefully the parts arrive here next week. i'll let you know when i get them rob.

mekros · Postby **mekros** » Mon Jul 28, 2008 7:26 am

wow,

it really has been a long time for us to get around to this. Well Fatty's problem was a dead reverse switch......

mine, is still yet to be determined. We replaced the switch, no reverse lights.
Tested the globes and they work.
Shorted out the switch, no lights.
made sure the car was on and in reverse and repeated the above.....no lights.
Checked the fuse, no lights.
Checked the switch (on the globe side) to chassis around 4 ohms.

so me thinks there is a loom problem.