Checking for DTCs
The temperature display indicates single or multiple DTCs. If indicator segments A, C, E, G, J, and M are on at the same time, there may be an open in the common ground wire. If no DTCs are present, the indicator remains blank.
Courtesy of AMERICAN HONDA MOTOR CO., INC. DTC TEMPERATURE REFERENCE
| DTC (Temperature Indicator Segments) |
Detection Item |
| A |
An open in the in-car temperature sensor circuit (see
DTC B1225 OR DTC INDICATOR A: AN OPEN IN THE IN-CAR TEMPERATURE SENSOR CIRCUIT ) |
| B |
A short in the in-car temperature sensor circuit (see
DTC B1226 OR DTC INDICATOR B: A SHORT IN THE IN-CAR TEMPERATURE SENSOR CIRCUIT ) |
| C |
An open in the outside air temperature sensor circuit (see
DTC B1227 OR DTC INDICATOR C: AN OPEN IN THE OUTSIDE AIR TEMPERATURE SENSOR CIRCUIT ) |
| D |
A short in the outside air temperature sensor circuit (see
DTC B1228 OR DTC INDICATOR D: A SHORT IN THE OUTSIDE AIR TEMPERATURE SENSOR CIRCUIT ) |
| E |
An open in the sunlight sensor circuit (see
DTC B1229 OR DTC INDICATOR E: AN OPEN IN THE SUNLIGHT SENSOR CIRCUIT ) |
| F |
A short in the sunlight sensor circuit (see
DTC B1230 OR DTC INDICATOR F: A SHORT IN THE SUNLIGHT SENSOR CIRCUIT ) |
| G |
An open in the evaporator temperature sensor circuit (see
DTC B1231 OR DTC INDICATOR G: AN OPEN IN THE EVAPORATOR TEMPERATURE SENSOR CIRCUIT ) |
| H |
A short in the evaporator temperature sensor circuit (see
DTC B1232 OR DTC INDICATOR H: A SHORT IN THE EVAPORATOR TEMPERATURE SENSOR CIRCUIT ) |
| J |
An open in the driver's air mix control motor circuit (see
DTC B1233 OR DTC INDICATOR J: AN OPEN IN THE DRIVER'S AIR MIX CONTROL MOTOR CIRCUIT ) |
| K |
A short in the driver's air mix control motor circuit (see
DTC B1234 OR DTC INDICATOR K: A SHORT IN THE DRIVER'S AIR MIX CONTROL MOTOR CIRCUIT ) |
| L |
A problem in the driver's air mix control linkage, door, or motor (see
DTC B1235 OR DTC INDICATOR L: A PROBLEM IN THE DRIVER'S AIR MIX CONTROL LINKAGE, DOOR, OR MOTOR ) |
| M |
An open in the passenger's air mix control motor circuit (see
DTC B1236 OR DTC INDICATOR M: AN OPEN IN THE PASSENGER'S AIR MIX CONTROL MOTOR CIRCUIT ) |
| N |
A short in the passenger's air mix control motor circuit (see
DTC B1237 OR DTC INDICATOR N: A SHORT IN THE PASSENGER'S AIR MIX CONTROL MOTOR CIRCUIT ) |
| P |
A problem in the passenger's air mix control linkage, door, or motor (see
DTC B1238 OR DTC INDICATOR P: A PROBLEM IN THE PASSENGER'S AIR MIX CONTROL LINKAGE, DOOR, OR MOTOR ) |
| Q |
An open or short in the mode control motor circuit (see
DTC B1239 OR DTC INDICATOR Q: AN OPEN OR SHORT IN THE MODE CONTROL MOTOR CIRCUIT ) |
| R |
A problem in the mode control linkage, doors, or motor (see
DTC B1240 OR DTC INDICATOR R: A PROBLEM IN THE MODE CONTROL LINKAGE, DOORS, OR MOTOR ) |
| S |
A problem in the blower motor circuit (see
DTC B1241 OR DTC INDICATOR S: A PROBLEM IN THE BLOWER MOTOR CIRCUIT ) |