help identifying mysterious black box

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carlp

New Member

Jun 26, 2005

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Feb 2, 2007

#1

• Feb 2, 2007

• #1

All-
I have an unidentifed block box located above/near the drivers kick panel. It has a large grey connector going to it. My car is an 88 4cyl converted to carburetor v8. The car seems to run without this, but I am trying to find out what it is and what it did. The wiring appears to be burned connecting to it, so I am sure it is now no-functional. The part # is worn off but the top of it says TRW. Does anyone know what it is? Inside there is a circuit board with 2 relays and some resistors, transistors, diodes and 1 capacitor. It does not appear to be state of the art electronics. Please help!

 

twolo4u2c2

5 Year Member

Apr 10, 2003

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reading, PA

Feb 2, 2007

#2

• Feb 2, 2007

• #2

picture might help.

 

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carlp

New Member

Jun 26, 2005

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Feb 2, 2007

#3

• Feb 2, 2007

• #3

I have attached the picure. Sorry it is not more clear, but my camera phone is not very good.

 

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jrichker

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Mar 10, 2000

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Dublin GA

Feb 2, 2007

#4

• Feb 2, 2007

• #4

It may be the interval wiper timer or the cruse control amplifer.

 

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carlp

New Member

Jun 26, 2005

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Feb 2, 2007

#5

• Feb 2, 2007

• #5

The wiper delay still works with it disconnected and there is no indication the car ever had cruise control. Can you think of anything else?

 

Saleen0679

10 Year Member

Apr 14, 2005

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Yakima, WA

Feb 2, 2007

#6

• Feb 2, 2007

• #6

That might be the cooling fan controller that the 2.3L are equipped with.

 

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carlp

New Member

Jun 26, 2005

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Feb 2, 2007

#7

• Feb 2, 2007

• #7

Since it had some relays and heavy gauge wire going to it, I bet you are right. Thanks for solving the mystery.

 

Fett

New Member

Nov 2, 2004

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Feb 2, 2007

#8

• Feb 2, 2007

• #8

The cooling fan in a 2.3 is controlled by the CCRM, which is in the engine compartment.

There should be an engineering number on it, which should look like a Ford part number. Something to the effect of E9AF-XXXXX-AA. What is that number, I will tell you what that box is.

 

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carlp

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Jun 26, 2005

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Feb 2, 2007

#9

• Feb 2, 2007

• #9

The #'s are illegible. I found a wiring diagram in my Haynes manual and it shows an ac fan controller that might be the part. One of the main wires going to this thing is a yellow/grey wire. According to the maunal a yellow grey wire goes to the AC fan controller. Do you thin k this could be it?

 

Saleen0679

10 Year Member

Apr 14, 2005

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Yakima, WA

Feb 2, 2007

#10

• Feb 2, 2007

• #10

The cooling fan controller for the 1988 2.3L is attached to the LH instrument panel support.

If you want to verify the wires they are as follows:

Yellow/Red
Orange/Black
Orange/Light Blue
Black
Brown/Yellow
Pink/Black
Black/Yellow
Gray/Yellow

 

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carlp

New Member

Jun 26, 2005

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Feb 2, 2007

#11

• Feb 2, 2007

• #11

The picture does not look quite right, but the wiring is dead on. Thanks for helping solve the mystery. I cut it out of the car tonight. The wires were burned near the connector and appeared to have been shorting out. I cut all of the wires back and sealed them off with shrink tape. -Probem solved.

 

Saleen0679

10 Year Member

Apr 14, 2005

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Yakima, WA

Feb 2, 2007

#12

• Feb 2, 2007

• #12

The picture isn't the best representation, but it was the best I could find that clarified the location. The box should be wider and flat and I thought the connection was facing down instead of to the side.

 

Roland69

Sergeant Tangnet

Sep 17, 2005

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Port Elgin, Ontario

Feb 3, 2007

#13

• Feb 3, 2007

• #13

that's the box that they use to see what hapened 10 seconds before a crash...like on planes. They always come up with "Dude hold my beer and watch this"

 

bennettracing

Founding Member

Aug 26, 2002

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Ava, MO

Feb 3, 2007

#14

• Feb 3, 2007

• #14

Yes, I can confirm (since I'm re-wiring the car completely...) that is the module used to control the electric fan on 4cyl cars. Mine was burned up in my car as well, possibly a factory problem, most likely the result of some jackas* trying to incorrectly wire in a switch to their fan however...