alright so i just got done converting my 89 crx si dash harness to run a 90-91 si cluster.do i have to do any converting to use the 90-91 defogger switch and hazrd and dimmer switch??

 

I know the switches them selves are different.

Dimmer switch will plug right in.
Hazard switch will need to be re-wired
-90-91 style switch has a 7-wire plug (only 5 wires are used) not sure about 88-89 but I know it's a different plug and needs to be relocated. Or u can leave it on the column.
Defroster will need to be re-wired
-88-89 style have a 6-wire square plug where 90-91 only have a flat 5-wire plug

 

i see is there any write ups for this??

 

Not that I know of. Easiest way to do this is to use a 90-91 dash harness from a crx. Did you re-use your old harbess or the new one that came with the dash?

 

alright i got a 90-91 civic si and a 89 crx si harness that i was converting.but now im thinking of converting the civic harness.since im gonna be running the 90-91 si cluster and the defroster and hazard switch.but what do i need to convert for it to work with the crx climate control and other stuff that are a lil different??should i change out my fusebox aswell??and im probably gonna be runing my civic ignition are there any differences??

 

need help ASAP!!!

 

Your gonna need alot more stuff to use the crx climate control in a civic.

 

-_- im trying use a civic si dash harness in my rex

 

does anyone know if a 91 crx si dash harness is plug and play in a 89 crx si??

 

No they are not plug n play. Both harnesses are different. Easiest way to get it to work is to have the matching main harness that connects toy he fuse box and ecu.

 

alright so if i swap everything out with civic si harness will it plug up with the crx cabin harness???