1981 Porsche 928 Climate control wiring harness question / wire color order
#1
Track Day
Thread Starter
1981 Porsche 928 Climate control wiring harness question / wire color order
I have searched around the forums and I'm not finding exactly what I am looking for and hope someone might be able to assist me.
I removed the climate control unit in hopes that I could possibly clean the board to possibly stop the buzzing noise when the unit is turned off and maybe get the A/C working.
When I pulled the wiring harness on the left side of the unit (next to the **** to control the fan speed) the top of the harness block came out and all of the wires fell out of the harness. I don't know what order they are supposed to be in. The unit has 1,2,3,4,5 listed on the climate control system but there are two red wires (one with a black stripe) and the other three are white. One with that is plain white, one with a blue stripe, and one with a green stripe.
Does anyone know which order these wires are placed back in to the harness?
I removed the climate control unit in hopes that I could possibly clean the board to possibly stop the buzzing noise when the unit is turned off and maybe get the A/C working.
When I pulled the wiring harness on the left side of the unit (next to the **** to control the fan speed) the top of the harness block came out and all of the wires fell out of the harness. I don't know what order they are supposed to be in. The unit has 1,2,3,4,5 listed on the climate control system but there are two red wires (one with a black stripe) and the other three are white. One with that is plain white, one with a blue stripe, and one with a green stripe.
Does anyone know which order these wires are placed back in to the harness?
#2
Nordschleife Master
1 - white
2 - white/green
3 - white/blue
4 - red/black
5 - red/white
Your bottom picture looks like a red/black & red/white wires.
Your text however says a red and a red/black wire.
The above legend is from the Current Flow Diagram, Track 5, page 97-103 WSM
Good Luck with the job.
2 - white/green
3 - white/blue
4 - red/black
5 - red/white
Your bottom picture looks like a red/black & red/white wires.
Your text however says a red and a red/black wire.
The above legend is from the Current Flow Diagram, Track 5, page 97-103 WSM
Good Luck with the job.
#3
Track Day
Thread Starter
1 - white
2 - white/green
3 - white/blue
4 - red/black
5 - red/white
Your bottom picture looks like a red/black & red/white wires.
Your text however says a red and a red/black wire.
The above legend is from the Current Flow Diagram, Track 5, page 97-103 WSM
Good Luck with the job.
2 - white/green
3 - white/blue
4 - red/black
5 - red/white
Your bottom picture looks like a red/black & red/white wires.
Your text however says a red and a red/black wire.
The above legend is from the Current Flow Diagram, Track 5, page 97-103 WSM
Good Luck with the job.
#5
Rennlist Member
Rennlist Site Sponsor
The buzzing may well be vacuum, rather than electrical.
With the engine running and the buzzing audible, unplug the small black/blue drum-shaped check valve from the vacuum brake booster. If that is the source of the buzzing, you have a vacuum actuator which has failed.
If you go to our web site, then tips & links, then Wally's World, then the HVAC section, you will find info that will tell you how to test the vacuum actuators.
With the engine running and the buzzing audible, unplug the small black/blue drum-shaped check valve from the vacuum brake booster. If that is the source of the buzzing, you have a vacuum actuator which has failed.
If you go to our web site, then tips & links, then Wally's World, then the HVAC section, you will find info that will tell you how to test the vacuum actuators.
#6
Track Day
Thread Starter
#7
Track Day
Thread Starter
The buzzing may well be vacuum, rather than electrical.
With the engine running and the buzzing audible, unplug the small black/blue drum-shaped check valve from the vacuum brake booster. If that is the source of the buzzing, you have a vacuum actuator which has failed.
If you go to our web site, then tips & links, then Wally's World, then the HVAC section, you will find info that will tell you how to test the vacuum actuators.
With the engine running and the buzzing audible, unplug the small black/blue drum-shaped check valve from the vacuum brake booster. If that is the source of the buzzing, you have a vacuum actuator which has failed.
If you go to our web site, then tips & links, then Wally's World, then the HVAC section, you will find info that will tell you how to test the vacuum actuators.