shtbrwn86
SILVER Star
I would appreciate some insight into where to start troubleshooting my recent AC issue in my 99 LX. I am trying to get an appointment at a shop to check the pressures, but until then I have been doing some other troubleshooting.
When I bought it in June 2020 (from Phoenix) the AC worked great and has worked fine until just recently.
I tried to use Tech Stream to trigger the A/C but couldn't figure out how. Maybe that's only on the new 100 series with NAV?
I also tried the low-tech suggestion from @flintknapper on another thread to depress the shraeder valve on the low-pressure line and got a very forceful discharge.
I know some people have had issues with the magnetic clutch relay and on the newer models it's almost impossible to get to. But on the 99 it appears to be easily replaceable?
It just seems weird that it would stop all of a sudden. The PO did need to top off the refrigerant back in 2014. But it's been running fine since then.
When I bought it in June 2020 (from Phoenix) the AC worked great and has worked fine until just recently.
- I don't hear the compressor come on at all.
- When I have someone press the AC button, I don't hear any relays click in the JB.
- Followed the FSM to check the sight glass and saw nothing. No bubbles. Nothing.
- Diagnostic mode showed CODE 23
- Open in pressure sensor circuit
- Abnormal refrigerant pressure
I tried to use Tech Stream to trigger the A/C but couldn't figure out how. Maybe that's only on the new 100 series with NAV?
I also tried the low-tech suggestion from @flintknapper on another thread to depress the shraeder valve on the low-pressure line and got a very forceful discharge.
I know some people have had issues with the magnetic clutch relay and on the newer models it's almost impossible to get to. But on the 99 it appears to be easily replaceable?
It just seems weird that it would stop all of a sudden. The PO did need to top off the refrigerant back in 2014. But it's been running fine since then.