Reverse lights on in all gears.

[Scottyd 240z]

Hi I just replaced my faulty reverse switch with a new OEM switch and now the reverse lights come on in all gears and go off in neutral. WTF.     RB20det box in a Datsun 240Z .  Any thoughts ?

[niZmO_Man]

Did you plug them in correctly? I crossed the wires (for reverse and neutral switches) when I did manual conversion on my R31

[Scottyd 240z]

Yeah I’ve swapped wires, still the same.

[joshuaho96]

On 7/22/2022 at 1:03 AM, Scottyd 240z said:

Yeah I’ve swapped wires, still the same.

Are you sure you don't have the neutral switch wired to the reverse switch? Could also be a DOA switch.

[Scottyd 240z]

On 23/7/2022 at 2:56 AM, joshuaho96 said:

Are you sure you don't have the neutral switch wired to the reverse switch? Could also be a DOA switch.

The switch has two wires, one wire from the loom is live with ignition on and I assume the other wire goes to the lights. When I hold the switch and plug the wires in and press the switch button the lights come on as this creates the circuit, same scenario if I swap the wires over. When it’s attached to the gearbox and I go through the gears the lights come on with every gear and off with neutral, it’s like the selector is activating it in all gears.

[GTSBoy]

The switch is supposed to be closed circuit only in neutral, open circuit in all other positions. If it is closed in all other positions, then it is somehow installed wrong, or broken. How you managed to achieve that while swapping the reverse switch is likely to remain a mystery. The other mystery, which we need to solve, is why it is working backwards mechanically.

[ossie cossie]

question witch switch is witch on these pics  the one has a yellow cable tie 

[joshuaho96]

6 hours ago, ossie cossie said:

question witch switch is witch on these pics  the one has a yellow cable tie 

https://nissan.epc-data.com/skyline/bcnr33/3935-rb26dett/trans/321/32006M/

https://tfaspeed.com/products/nissan-skyline-r32-gtr-gts-4-reverse-switch-assembly-32005-21u1b-jdm-genuine

https://tfaspeed.com/products/nissan-skyline-r32-r33-gtr-r32-gts-4-neutral-saftey-switch-32006-31g01-jdm

Looks like rearmost should be the neutral position switch. The one closer to the bellhousing is the reverse switch.

[ossie cossie]

thank you