I have figured out how to add variable intermittent wipers on all my other Hondas that never came with them so I had to do the CRX
also. Since the CRX is so old, the intermittent function is not a part of the ICU. It is its own self contained relay which actually
makes it quite simple to modify the timing.

Opening up the intermittent relay finds a 56k ohm resistor and a 33 uf cap for timing. This gives around a 5 second intermittent
time. I removed the resistor and wired up a 50k ohm potentiometer and presto I had 0-4 second timing. If I used a 100k, it ranges
from 0 back to stock timing.

So basically by removing a resistor and soldering a couple wires to where the resistor was and running them to a pot gives
Variable speed intermittent wipers. Adjustment ranging from the stock speed of around 5 seconds to 0 seconds.

Stock wiper relay


Wire soldered to where timing resistor used to be


I actually wanted to increase the the time as well as shorten the time. This requires changing the capacitor. The stock capacitor
is a 33uf so I picked up a few different sizes to test with. I started with a 10uf which gave me a a very short max time of about
2-2.5 seconds. Next was a 63uf, it was actually quite good with a max time of around 9 second. and a good range of adjustment.
Finally I tried a 100uf, it gave a super long max time but the short time adjustment was minimal. I decided on the 63uf and soldered it up.

Cap and resistor removed


New cap soldered in


Finished with switch connector




Now I could have simply wired up a pot and been done but that is not me. I need to have it on the wiper stalk like stock. I am in
planning on another mod which requires a 3 contact slip ring which does not attach to the crx combination switch. I decided to
replace the crx combo switch with one from an 88 Integra. It bolts right on and requires remapping of the connectors and
reconnecting the turn signal wires.

With either the crx or Integra combo switch, the stalk angle is very shallow compared to the cars that use airbags. Unfortunately
all the variable wiper stalks come on airbag cars. On other cars that are an in between stalk depth like a 90-93 Integra/accord, I
could just do a little grinding on the actual arm and get pretty close to stock. This was not the case in the crx. I decided to
keep the 88 Integra arm and remove the rear wiper controls from it. I never use the rear wiper and it will be shaved when the car
gets repainted anyway. I placed the potentiometer from an adjustable switch where the rear controls once were.

It is actually fairly simple to swap. The hard part is to get the pin out that holds the end cap on. Once that is off there is an
e clip holding the pot nob and spacer. The pot will be able to slide off and there will be two screws to remove holding the center
section. The stock teg switch is very similar to take apart. I transferred the center section, pot, and knobs from the adjustable
arm to the stock teg arm.

Removing the punch pin


Remove the e clip


Potentiometer knob and potentiometer removed


Potentiometer center section and potentiometer installed on 88 teg arm



Connector for the potentiometer

On pre 98 connector radios there is no variable dimming. You connect the red/black 12v light signal which turns on the back lighting and dims the display.

On 98 connector and newer there is variable dimming. You have two wires , a red/black wire to supply 12v when lights are on, and a red wire which is the dimmer

So how much is one these worth at the moment? I think I am going have to get rid of since I am out parking space.