Checking the DTCs by DTC Indicator NOTE: Before troubleshooting the climate control system, refer to the multiplex integrated control system test mode A. To retrieve the DTC, you must run the self-diagnostic function. In the case of multiple problems, the respective indicator segments will come on. If indicator segments A, C, E, G, I, L, and O come on at the same time, there may be an open in the common ground wire of the sensors.

DTC (Temperature Indicator Segment) | Detection Item
--- | ---
A | An open in the in-car temperature sensor circuit
B | A short in the in-car temperature sensor circuit
C | An open in the outside air temperature sensor circuit
D | A short in the outside air temperature sensor circuit
E | An open in the sunlight sensor circuit
F | A short in the sunlight sensor circuit
G | An open in the evaporator temperature sensor circuit
H | A short in the evaporator temperature sensor circuit
I | An open in the driver's air mix control motor circuit
J | A short in the driver's air mix control motor circuit
K | A problem in the driver's air mix control linkage, door, or motor
L | An open or short in the mode control motor circuit
M | A problem in the mode control linkage, doors, or motor
N | A problem in the blower motor circuit
O | An open in the passenger's air mix control motor circuit
P | A short in the passenger's air mix control motor circuit
Q | A problem in the passenger's air mix control linkage, door, or motor