For 1990-2009 cars

DTC | Definition
--- | ---
10 | Inside Air Temperature Sensor Voltage Low
11 | Inside Air Temperature Sensor Open Circuit
12 | Left Air Outlet Sensor Voltage Low
13 | Left Air Outlet Sensor Open Circuit
14 | Right Air Outlet Sensor Voltage Low
15 | Right Air Outlet Sensor Open Circuit
16 | Interior Air Mix Door Motor Voltage Low or Open Circuit
17 | Interior Air Mix Door Motor Voltage High
18 | Left Air Mix Door Motor Voltage Low or Open Circuit
19 | Left Air Mix Door Motor Voltage High
20 | Right Air Mix Door Motor Voltage Low or Open Circuit
21 | Right Air Mix Door Motor Voltage High
22 | Floor Air Mix Door Motor Voltage Low or Open Circuit
23 | Floor Air Mix Door Motor Voltage High
24 | Defroster Air Mix Door Motor Voltage Low or Open Circuit
25 | Defroster Air Mix Door Motor Voltage High
27 | Blower Motor Voltage Low or Open Circuit
28 | Air Circulation Valve Voltage Low or Open Circuit
29 | Air Circulation Valve Voltage High
30 | Heating Cutoff Valve Voltage Low or Open Circuit
31 | Heating Cutoff Valve Voltage High
35 | A/C Request Signal Voltage Open Circuit
36 | A/C Request Signal Voltage Low
37 | Heater & A/C Control Switch Stuck
38 | Solar/Twilight Sensor Supply Voltage Low
39 | Solar/Twilight Sensor Supply Voltage High
40 | Solar/Twilight Sensor Ground Shorted to Voltage
51 | Replace Heater & A/C Control
52 | Heater & A/C Control Not Programmed
55 | Replace Heater & A/C Control
169 | Outside Temperature Sensor Voltage Low
171 | Outside Temperature Sensor Open Circuit