AC error code 1270
06-30-2014, 02:26 PM
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2000 S500
AC error code 1270
I have a 2000 S500 and the AC is no longer very cold.
I ran the diagnostics and received error codes 1241 and 1270.
The 1241 code cleared, but the 1270 code still exists.
After some research, I found error code 1270 to be - B1270 Communication fault of A/C bus w/ control unit B32/2 (AAC sun sensor (4 in total)
If I replace the sun sensor, which is $115, will it solve the problem? Not sure what (4 total) means. I don't want to start replacing a bunch of sensors, as it could get expensive.
Thanks!
Mike
I ran the diagnostics and received error codes 1241 and 1270.
The 1241 code cleared, but the 1270 code still exists.
After some research, I found error code 1270 to be - B1270 Communication fault of A/C bus w/ control unit B32/2 (AAC sun sensor (4 in total)
If I replace the sun sensor, which is $115, will it solve the problem? Not sure what (4 total) means. I don't want to start replacing a bunch of sensors, as it could get expensive.
Thanks!
Mike
