help to resolve 99 model landcruiser AC malfunction (1 Viewer)

[chukstel]

hello all, I have a 99-2000 model landcruiser and the AC is not working.

when i swich on the AC, the compressor starts and stop within 5 seconds and the AC switch light begins to blink continuosly.

The 134a Gas level was checked using guage meter by the Ac electrician and he confirmed it ok.

Please i need help to get the problem solved.

 

[NMuzj100]

Check out the diagnostic procedure here

AC Diagnostic

 

[chukstel]

Check out the diagnostic procedure here

AC Diagnostic

Man thanks for the help.

I will try it tomorrow morning and get back on my findings.

thanks

 

[chukstel]

Check out the diagnostic procedure here

AC Diagnostic

Hell NMuzj100,

I check the AC diagnostic as directed and here is what i got.

REAR FAN SWITCH and POSITION 2 on the fan speed dial are lit.

Can you look it up for me. I don't have the service manual.

thanks.

 

[LandCruiserPhil]

Hell NMuzj100,

I check the AC diagnostic as directed and here is what i got.

REAR FAN SWITCH and POSITION 2 on the fan speed dial are lit.

Can you look it up for me. I don't have the service manual.

thanks.

Try search I believe I have post for someone else before

 

[chukstel]

LandcruiserPhil,

I have done searches and no result before posting it for help. If you have the solution, kindly help me out.

i have spent alot of money trying to get it repaired without success.

thanks

 

[LandCruiserPhil]

LandcruiserPhil,

I have done searches and no result before posting it for help. If you have the solution, kindly help me out.

i have spent alot of money trying to get it repaired without success.

thanks

Check out THIS thread

 

[NMuzj100]

REAR FAN SWITCH and POSITION 2 on the fan speed dial are lit.

Can you look it up for me. I don't have the service manual.

Rear Air mix damper position sensor circuit-
Check
- damper control servo motor
- damper position sensor
- harnesses between A/C amp and the same two
- A?C amp

 

[chukstel]

Rear Air mix damper position sensor circuit-
Check
- damper control servo motor
- damper position sensor
- harnesses between A/C amp and the same two
- A?C amp

NMuzj100, thanks again. i just talk to my AC tech man and it appears he doesn't know these position. can you still help me out with the circuit location?

 

[campoj2]

I had the blinking A/C light it was a seized compressor that was the culprit. I scored a complete nippondenso compressor and dryer - next day air to my door for $360.00. It was not cheap to install.

The technician should be able to tell if it is a seized compressor, but then again my local guy could not figure it out so I had to take it to Toyota and they were kind enough to give me the good news in exchange for $90.

 

[chukstel]

I had the blinking A/C light it was a seized compressor that was the culprit. I scored a complete nippondenso compressor and dryer - next day air to my door for $360.00. It was not cheap to install.

The technician should be able to tell if it is a seized compressor, but then again my local guy could not figure it out so I had to take it to Toyota and they were kind enough to give me the good news in exchange for $90.

I will get back my findings after checking the all.

thanks

 

[chukstel]

Rear Air mix damper position sensor circuit-
Check
- damper control servo motor
- damper position sensor
- harnesses between A/C amp and the same two
- A?C amp

NMuzj10,

where can i get the location of the rear Air mix sensor circuit you mention?

do you have a pic of the location, servo motor and sensor?

can you send it to me if you have it?

thanks

 

[chukstel]

Check out THIS thread

LandcruiserPhil,

Thanks for the schematics. Can i send me the Air conditioning diagnostic full pages or where to download it.

I got

 

[chukstel]

Check out THIS thread

landcruiserPhil,

I've download the FSM and the ac diagnostic pages D1-1354 etc are not there.

Please can you send me the ac diagnostic pages (ALL) if you have them?.

I've changed compressor and the problem is still there?

I need solutions pls.

Thanks.

 

[NMuzj100]

do you have a pic of the location, servo motor and sensor?

try this thread on a similar problem...
https://forum.ih8mud.com/100-series-cruisers/328462-temperature-fluctuates-lot.html