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code B1421/B1424 advice

37K views 4 replies 4 participants last post by  Pvt-Public  
#1 ·
We're selling our 07 Camry and an interested party had is family member (a mechanic) inspect our vehicle. He did did a full code read and codes B1421 and B1424. Is there a diagnostic tree for these codes available somewhere I can access? According to the buyer, who has now backed out, It seems like one of them may be associated with the solar sensor or possibly all the way up to an AC issue.

Climate controls seem to function just fine for us, hot or cold, separate zones. Any advice is welcome.
 
#2 ·
Driver and passenger solar sensor error.
Lots of info out there on the error codes.
I would try deleting the codes and let ECU see the sensors with sun shinning on them.
If codes return in sunlight then possible faults are sensors covered/dirty/circuit wiring to A/C amp.
My experience is that the sensors don't vary the cold air more than a few degrees which is why, if sensors are faulty, you haven't notice.