Cadillac Owners Forum banner

Eldorado Codes

1156 Views 4 Replies 3 Participants Last post by  Ranger
I am getting a ew codes and would like some help. I have searched and gone to the suggested OBDII websites but the cods don't match anything listed there. Any help would be appreciated.

PC0139 Current
AC1340 History
RS0020 History
RS0023 History
1 - 2 of 5 Posts

P0139 - Heated Oxygen Sensor (HO2S) Slow Response Bank 1 Sensor 2

B1340 - Air Mix Door One Movement Fault

RS0020 & 0023 should be Road Sensing Suspension codes but I could not find them.
Air mix door is not operating as requested or is out of position or something like that.
1 - 2 of 5 Posts
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.