what are these???

DualPurposeXJ · Apr 20, 2011

i am stripping down the stock wiring harness and was wondering what these two thing are.
this is located to the right of the steering column. since i removed some wires there is now a high pitched wine coming from this when i start the jeep

and this was bolted to the dash

:helpme:

thanks for the help in advance

1990JEEPXJ · Apr 20, 2011

mine would do the same thing from that same connector in the second picture!! but with everything still connected. so i pulled it out and it has had no effect on the jeep. im guessing you have a renix XJ as well. if it is squealing and you push the brakes, does it go away?

DualPurposeXJ · Apr 20, 2011

1990JEEPXJ said:
mine would do the same thing from that same connector in the second picture!! but with everything still connected. so i pulled it out and it has had no effect on the jeep. im guessing you have a renix XJ as well. if it is squealing and you push the brakes, does it go away?

Ya I just went out there and the squeal went away when I hit the brakes

1990JEEPXJ · Apr 21, 2011

all i did was unplug that from the wiring. i havent noticed anything not working because of it. maybe someone with a factory service manual will chime in as to exactly what it is.

1987Comanche · Apr 21, 2011

The one with TRW printed on it is the headlight delay module. It allows the headlight to stay on for 45 seconds if you shut the truck off, then turn the headlights off.

DualPurposeXJ · Apr 21, 2011

1990JEEPXJ said:
all i did was unplug that from the wiring. i havent noticed anything not working because of it. maybe someone with a factory service manual will chime in as to exactly what it is.

1987Comanche said:
The one with TRW printed on it is the headlight delay module. It allows the headlight to stay on for 45 seconds if you shut the truck off, then turn the headlights off.

Cool thanks....anyone know what the metal box is?

dave92cherokee · Apr 21, 2011

I'm assuming based on the look of everything that you have a pre91 (Renix) XJ which if that's the case I believe that's the PCM for it, and when it was changed to 92 and later it was moved under the hood on drivers side inner fender behind airbox.

Matthew Currie · Apr 21, 2011

Yes, the big aluminum box is the ECU (what they later called the PCM, for reasons known only to Jeep).

Mesh · Apr 21, 2011

The Relay with part# 36000350 is the rear defrost.

what are these???

DualPurposeXJ

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1990JEEPXJ

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DualPurposeXJ

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1990JEEPXJ

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1987Comanche

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DualPurposeXJ

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dave92cherokee

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Matthew Currie

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Mesh

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