Tommyquest
The Member's Member
Anybody have chassis diagrams for a '92 and '93 Typhoon? Specifically the page for the harness connection behind the the fuse block that connects to the engine bay? TIA
chassis diagram request
- Thread starter Tommyquest
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Tommyquest
The Member's Member
Re: chassis diagram request
Thanks Dave. Do you know by chance what year it is for? There were changes to the wiper motor. I have a 92 harness in my 93 Ty. I'm having the same low voltage problems BoostedSUV was having last year only his was a 92 Ty with a 93 harness. He ended up swapping wires around on the inside underneath the dash. i have all the engine harness diagrams but need the chassis diagram. Hopefully the wires are the same color on the inside and I can use your diagram.
Thanks Dave. Do you know by chance what year it is for? There were changes to the wiper motor. I have a 92 harness in my 93 Ty. I'm having the same low voltage problems BoostedSUV was having last year only his was a 92 Ty with a 93 harness. He ended up swapping wires around on the inside underneath the dash. i have all the engine harness diagrams but need the chassis diagram. Hopefully the wires are the same color on the inside and I can use your diagram.
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BoostedSUV
Active member
Re: chassis diagram request
Tom now that Dave mentioned it and I'm thinking about it was a wire to the washer pump motor that was in the wrong spot. Regardless of which wire it was it caused the voltage to drop when my wipers were "off" because the wires were not in the correct positions for the wiper circuit. What you need to do is unclip the fuse box under the dash and pull it away from the bulkhead connector that goes through the firewall and connects to your engine bay harness. There is enough wire length between the back of the fuse panel that you can pull it away from the fire wall and examine the wires. Use the diagram Dave posted and compare the harness you have and verify the position of the wires. Any wire that doesn't correspond move it to the correct position. You just need to pull out the plastic retaining clips on the fuse box and the wires slide out and can be re positioned. You may have to unbolt the bulkhead connector at the fire wall to get a little more room. There are screws that come from the back side of the fuse panel that need to be removed to do so. They can accessed from the engine bay. Let us know how you make out.
Tom now that Dave mentioned it and I'm thinking about it was a wire to the washer pump motor that was in the wrong spot. Regardless of which wire it was it caused the voltage to drop when my wipers were "off" because the wires were not in the correct positions for the wiper circuit. What you need to do is unclip the fuse box under the dash and pull it away from the bulkhead connector that goes through the firewall and connects to your engine bay harness. There is enough wire length between the back of the fuse panel that you can pull it away from the fire wall and examine the wires. Use the diagram Dave posted and compare the harness you have and verify the position of the wires. Any wire that doesn't correspond move it to the correct position. You just need to pull out the plastic retaining clips on the fuse box and the wires slide out and can be re positioned. You may have to unbolt the bulkhead connector at the fire wall to get a little more room. There are screws that come from the back side of the fuse panel that need to be removed to do so. They can accessed from the engine bay. Let us know how you make out.
Tommyquest
The Member's Member
Re: chassis diagram request
I had read the thread. A little farther down is the other thread he posted last year. The washer motor is my other issue as I have no power for it. I looked at my hacked up 93 harness and the power for the washer moter comes from A2. On the diagram it shows the alternator which leads to believe the diagram is not for a 93.
Tommyquest
The Member's Member
Re: chassis diagram request
Thank you. I'm going to take a crack at it on tues. I also have the 92 headlight harness so I may end up swapping that too for the washer power. You probably have an extra washer connector on yours since there is one coming from the 93 engine harness.
Tommyquest
The Member's Member
Re: chassis diagram request
I just went through it and everything on the engine harness side of this diagram matches the diagram in the 91 Syclone Service Manual Suppplement
BoostedSUV
Active member
Re: chassis diagram request
Your issue is going to be on the cab side of the harness not the engine side.
Your issue is going to be on the cab side of the harness not the engine side.
Tommyquest
The Member's Member
BoostedSUV
Active member
Re: chassis diagram request
Tom which harness did you change? Engine bay side or the cab side? In my case I changed the cab side harness behind the dash. Either one you changed the wiper circuit won't match from 92 to 93. Just trying to figure out where exactly you should be looking. Maybe I'm confusing you?
Tom which harness did you change? Engine bay side or the cab side? In my case I changed the cab side harness behind the dash. Either one you changed the wiper circuit won't match from 92 to 93. Just trying to figure out where exactly you should be looking. Maybe I'm confusing you?
Tommyquest
The Member's Member
Tommyquest
The Member's Member
Re: chassis diagram request
That may be why the alt isn't being excited. I have leave for work. Like you said I'll match up wire colors and go from there.
BoostedSUV
Active member
Re: chassis diagram request
Ok if you changed the engine side you will definitely have the issue you are describing as well. Like Dave mentioned on a 92 harness the washer power wire went through the fuse box, and on a 93 it went from the wiper motor to the washer pump if I'm getting that correct. My issue was on the cab side because I had no power to the washer motor because that wire didn't exist. I moved some pins around and reconfigured my 93 harness to be the same as a 92. I was getting 12v to the motor when I tested washer pump, but nothing to the pump itself. That all makes sense now. I was able to make it work in my case but I'm not sure how you can do the same. Very annoying that GM made that change and made the harness' not interchangeable. I sure learned that the hard way! You may have to move the wires on you cab side so they correspond to the engine bay side. You really need a side by side of a 92 and 93 harness to compare. I looked and I don't have the diagrams Wyoclone sent me. I do however still have the remains of my 92 harness and I will try to draw up a diagram of the wire colors and order on the 92 side. Then you will have something to compare to. :tup:
Ok if you changed the engine side you will definitely have the issue you are describing as well. Like Dave mentioned on a 92 harness the washer power wire went through the fuse box, and on a 93 it went from the wiper motor to the washer pump if I'm getting that correct. My issue was on the cab side because I had no power to the washer motor because that wire didn't exist. I moved some pins around and reconfigured my 93 harness to be the same as a 92. I was getting 12v to the motor when I tested washer pump, but nothing to the pump itself. That all makes sense now. I was able to make it work in my case but I'm not sure how you can do the same. Very annoying that GM made that change and made the harness' not interchangeable. I sure learned that the hard way! You may have to move the wires on you cab side so they correspond to the engine bay side. You really need a side by side of a 92 and 93 harness to compare. I looked and I don't have the diagrams Wyoclone sent me. I do however still have the remains of my 92 harness and I will try to draw up a diagram of the wire colors and order on the 92 side. Then you will have something to compare to. :tup:
Tommyquest
The Member's Member
Re: chassis diagram request
I'll have to do the same and compare my 93 harness to the 92. It's seems as far as the the firewall connection side of the engine harness is generic and not Sy/Ty specific, only model year specific, and would be the same as a 93 blazer or jimmy and just the ECM (boost solenoid, est module, etc.) side is what is different. I'm going to go to the junkyard and pull a 93 blazer of jimmy engine harness and compare it to the 93 Ty harness then make any necessary pinout changes to the ECM connectors.
I'll have to do the same and compare my 93 harness to the 92. It's seems as far as the the firewall connection side of the engine harness is generic and not Sy/Ty specific, only model year specific, and would be the same as a 93 blazer or jimmy and just the ECM (boost solenoid, est module, etc.) side is what is different. I'm going to go to the junkyard and pull a 93 blazer of jimmy engine harness and compare it to the 93 Ty harness then make any necessary pinout changes to the ECM connectors.
Tommyquest
The Member's Member
Re: chassis diagram request
I rehabbed my original 93 harness. It started right up and ran fine. I'll take for a spin tomorrow. I can confirm (via the service manual supplements) that the above diagram is for a 92 Typhoon. The 92 Ty has 2 wires going to the alternator, A2 and B2 (as shown in the pic) with the washer pump power coming off of the headlight harness. The 93 is a single wire to the alternator, B2 (pink/black) and A2 is to the front washer pump (pink). Incidentally the Syclone also has a single wire to the alt. (pink/black) from B2 and A2 is empty as it also gets washer pump power from the headlight harness. This could explain why it ran fine with the Sy harness in it. It's nice to have washer fluid again
I rehabbed my original 93 harness. It started right up and ran fine. I'll take for a spin tomorrow. I can confirm (via the service manual supplements) that the above diagram is for a 92 Typhoon. The 92 Ty has 2 wires going to the alternator, A2 and B2 (as shown in the pic) with the washer pump power coming off of the headlight harness. The 93 is a single wire to the alternator, B2 (pink/black) and A2 is to the front washer pump (pink). Incidentally the Syclone also has a single wire to the alt. (pink/black) from B2 and A2 is empty as it also gets washer pump power from the headlight harness. This could explain why it ran fine with the Sy harness in it. It's nice to have washer fluid again
Tommyquest
The Member's Member
Re: chassis diagram request
Runs like a champ. Looks like problem solved. Thanks for everyone's help.
Runs like a champ. Looks like problem solved. Thanks for everyone's help.
GEN3Typhoon
New member
Re: chassis diagram request
Can someone post up or email the wiring diagrams?
I have a 1992 Ty and am swapping an LSx engine and 4L80 into it, would like to see the complete engine and dash harness diagrams so I can mod the LS harness to make it work with the gages.
Or if someone can tell me where I can get them it would be great.
Email is hpmotorsports@gmail.com if that would work also.. any help is appreciated.
TIA.
Nick
Can someone post up or email the wiring diagrams?
I have a 1992 Ty and am swapping an LSx engine and 4L80 into it, would like to see the complete engine and dash harness diagrams so I can mod the LS harness to make it work with the gages.
Or if someone can tell me where I can get them it would be great.
Email is hpmotorsports@gmail.com if that would work also.. any help is appreciated.
TIA.
Nick