Steve2150

Which is the c201 connector, the temp goes to 75 and defrost lights up, cannot control the climate panel, when I shut engine off restart it goes away

1990 Reatta Coupe, lately the warning light electrical problem is on and the a/c temp goes to 75 and the defrost light button lights up, cannot turn off the a/c or change modes, this is when the motor is on controls for climate control not responsive. If I just put the car ignition on accessory then the a/c control works perfectly. Any ideas???

1990 Reatta Coupe, lately the warning light electrical problem is on and the a/c temp goes to 75 and the defrost light button lights up, cannot turn off the a/c or change modes, this is when the motor is on controls not responsive. If I just put the car ignition on accessory then the a/c control works perfectly. Any ideas???

I have the car for 4 years so the R12 to R134a conversion was done by the previous owner, in the 4 years I have had it the a/c ran great, replaced the compressor, orafice and accumulator 6 months ago as the compressor was leaking slightly, ran great after that till now, noticed at idle originally the ac service light did not come on but when accellerating it did, now on permanently

My mechanic replaced the low pressure switch today and charged the system 134a which it was previously. He said it was taking too long for the cans to charge the system, finally it did and was cold for around 5 minutes then the service a/c light came on and compressor off. Checked the codes B446H and B448C. He thinks something with the low pressure side. The orafice was changed with the new compressor 6 months ago but the old one was really dirty and clogged if that helps.

Have 1990, the service a/c light comes on and off. When on the a/c will not work, goes right to econo setting. Had 134 checked, right amount, when light not on compressor turns on. Diagnostic code is B447c, there was some history codes also but cleared them before writing down.

Have a 1990, had a/c compressor changed about 8 months ago, was working fine after that. Yesterday while still blowing cold air the Service A/c soon light came on. Today the light is on but no cold air, as soon as I press the auto button the econo button light comes on. I noticed that when pressing the outside temp button it was the same temp as what the A/C was set at. Any ideas what it could be???

My 1990 I changed the accumulator about 3 years ago from Amazon, original equipment old stock. Lately I noticed when I start the car sometimes the anti lock brake light stays on. But if I pump the brake pedal a few times before starting the anti lock brake lamp goes out normally. Any ideas? While driving the lamp does not come on only when starting car.

On my 1990 I sometimes get the amber warning light coming on show Electrical Problem and the climate control goes to 75 degrees and goes into defrost and cannot be controlled or changed. If I stop the engine and restart everything goes back to normal, temp control shows 75 but I can now change it and electrical problem warning light out. Any ideas???

Did the diagnostics already that way, showed Eo41, cam sensor, everything replaced except magnet on chain. Also get whine noise in radio so a ground might also be a problem.

System full, overflow reservoir full. 1990 has no crt has gauge in IP. Happened after new water pump and green to red antifreeze. My service engine light came on originally when I went to pass a car, floored it and my car picked up sluggishly then light came on, that is when found water pumo leaking and other parts previously listed failed to shut service engine light.

First start engine a little rough, wants to stall, after a few minutes runs good.

The temp gauge in the IP goes hot to almost red spot in about 2 minutes from startup, driving it sometimes goes back to normal then up again.

Have a 1990, service engine light on for cam sensor, car runs good. Mechanic replaced ecm, cam sensor, cranks sensor, idle air control, oxygen sensor, water pump (leaking), antifreeze from green to red, temp sensor, thermostat, ignition coil, ignition module, wires, plugs. What happened went to pass a car by flooring it, moved sluggishly service engine light came on, took it to mechanic low coolant as water pump leaking then all other things replaced light still on. after ecm switch using same proms as soon as you start car the temp gauge goes to hot which shuts down ac compressor but mechanic scanner says temp normal. Took it to different mechanic on his scanner shows just after starting temp is higher then air temp, not normal. Also sometimes when I start car get elecrical problem light where climate fan comes on and temp setting goes to 75 degrees cannot control heat/ ac etc shut motor off restart normal but must reset temp from 75 to whatever I want. Any new ideas would be helpfull

Cam magnet was the only part not replaced. After car warms up runs fantastic. Now I got electrical problem sometimes when starting where a/c goes on by itself and sets for 75 degrees, panel controls do not respond, shut motor restart all ok till it does it again, only happens on start not while driving. Also anti lock brake stays on at start sometimes, shut motor off start again goes off after 15 seconds and sometimes press brake pedal before starting light goes out after 15 seconds.

was a few B codes. Do have the E041 code but replaced almost everything for it, cam sensor, crank sensor, ecm, ignition module, plug wires, plugs, coils, oxygen sensor, idle air control, etc. Car runs great after warm but while warming up rough and sometimes wants to stall. Also water pump and mechanic switched after flushing from the green antifreeze to the gm one, also temp sensor changed. Since then the temp gauge goes up fast to red but car not overheating then gauge goes to normal very eratic.

Added to my signature 1990 but in my post did state 1990

Have a 1990, lately sometimes when starting car the electrical problem warning light comes on and the a/c starts automatically at 75 degrees. I normally set at 65, when this happens the a/c control panel does not respond and if I shut the engine and restart no electrical problem warning light and everything normal. Any ideas???

I was asked to count the SES flashes during diagnostics, I counted 1 flash then 2 quick flashes, does it mean anything?

What is a dvm, my mechanic used a scanner and replaced parts, for some reason when I try to clear codes it first shows E codes not cleared then shows cleared.

Still E041, tried clearing, first comes up clear codes, then E codes not clear, then E codes cleared. During diagnostics the SES light does 1 flash then 2 short flashes. As soon as I start the engine after 1 or 2 seconds SES light comes on.

Have a 1990 Reatta, gas the E041 code, on previous posts listed what was changed such as ecm, crank sensor, cam sensor, oxygen sensor, water pump (was leaking) changed to the red antifreeze had green before, new coils, new ignition module, still have the E041. Each time try to clear will show, clear E codes ?, E codes not Clear, E codes clear. If I have a B code I never get the codes not clear message, wonder if there is a problem clearing the e codes.

Only E041. When I go thru diagnosis and push the fan up button when asked to clear E codes the message E codes not cleared then E codes cleared.

Have a 1990, a few weeks ago went to pass a car but did not downshift and picked up sluggishly, then the service engine light came on. Took it to my mechanic and could not get reading from ECM saying ECM bad, replaced it using the original proms, water pump leaking bad so replaced that which had saturated area of cam sensor and elsewhere, also flushed system and replaced with the GM type antifreeze as the green was there before, so replaced cam sensor, crank sensor, oxygen sensor, idle air control valve, fuel pressure regulator, cleaned EGR, clean MAF,. Also since service engine light came on, temp gauge not steady. Light still on and car stumbled from a stop when moving, he then checked the ignition module which was crystallized and the coils were overheating and one where the plug wire goes in was corroded and wire had rust from the water leak, a;so the coil outside had white spots from overheating. He replaced both and we also replaced the fuel pump relay as it was very hot. Tried clearing the codes again from the cars diagnostics, went thru the procedure where it asks clear E codes, hit the up button for yes it then said E codes not cleared, then E codes cleared, as soon as I start the motor the service engine light comes back on after about 1 second. Car runs good, no stumbling now, any ideas what to do next.

runs normal when started unplugged but stalls when plugged back in, throws E034 code unplugged