A/C Error Codes
- Thread starter ethosb
- Start date
joegr
Dedicated LVC Member
1242 Air Flow Recirculation Door Driver Circuit Failure (This moves the door that selects fresh air or recycled air)
2799 Pass Water Valve Circuit Open (Your DCCV has probably failed)
1676 Battery Voltage Out of Range (Check your battery and alternator. You did do this test with the engine running, right?)
1262 Servo Motor Defrost Circuit Failure (This moves the door that allows air to the windshield defog/defrost outlets)
2798 Driver Water Valve Circuit Short (Your DCCV has probably failed)
I did not have the car running, just ignition on. I had just replaced the DCCV prior to running the system test. How can I be getting error codes on the new DCCV? I took the old one apart and the plungers were not gummed up and seemd to work just fine. The only reason I changed the DCCV was that I had read numerous post that indicated it was the cause of the system blowing cold air unless I set the temp to at least 83 degrees.
Thanks,
Brian
joegr
Dedicated LVC Member
Repeat the test with the engine running, and the electrical connector at the DCCV disconnected. The new trouble codes that you get (and post here) will be a clue as to if the new DCCV is bad, or if the old one killed your DATC. Another possibility is the wiring. I'll post the troubleshooting charts after you get the new codes. (post all codes that you get from this second test, even if some are repeats from the first test. I assume you are running the on-demand test only, and not the stored codes readout. )
I used the following testing procedures:
1. Push "Off" & "Defrost" at the same time, then press "Auto".-Got no response except it turned the system on.
2. Press "Off" and then "Defrost", then pushed "Recirc". That is the only way I got the test codes.
Not sure what the difference is between the "On demand" or the "Stored Codes Readout" is.
Can perform a restest tomorrow when it is daylight.
Thanks for the help.
joegr
Dedicated LVC Member
On demand is (1) above with auto. It just gives out the things that are failing right then and there. You should be able to get it to work with the engine running.
Stored codes is (2) above with Recirculate. It gives out all of the past failures that have been recorded. So, your DCCV failure codes may have been from before you replaced the DCCV.
Run the on-demand test with the DCCV still plugged in (engine running and warmed up to operating temperature). My comment about unplugging the DCCV may be invalid, since the short reported may have been from the past.
Get no codes, not even 8888 on the 1st method, get the same codes with the 2nd method as I did originally.