Checking for DTCs
The temperature display indicates single or multiple DTCs. If indicator segments A, C, E and G 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.
Scheme 10
| DTC (Driver's Temperature Indicator Segment and AUTO Indicator) | Detection Item |
|---|---|
| A and AUTO | An open in the in-car temperature sensor circuit (see DTC B1225 OR DTC INDICATOR A AND AUTO: AN OPEN IN THE IN-CAR TEMPERATURE SENSOR CIRCUIT ) |
| B and AUTO | A short in the in-car temperature sensor circuit (see DTC B1226 OR DTC INDICATOR B AND AUTO: A SHORT IN THE IN-CAR TEMPERATURE SENSOR CIRCUIT ) |
| C and AUTO | An open in the outside air temperature sensor circuit (see DTC B1227 OR DTC INDICATOR C AND AUTO: AN OPEN IN THE OUTSIDE AIR TEMPERATURE SENSOR CIRCUIT ) |
| D and AUTO | A short in the outside air temperature sensor circuit (see DTC B1228 OR DTC INDICATOR D AND AUTO: A SHORT IN THE OUTSIDE AIR TEMPERATURE SENSOR CIRCUIT ) |
| E and AUTO | An open in the sunlight sensor circuit (see DTC B1229 OR DTC INDICATOR E AND AUTO: AN OPEN IN THE SUNLIGHT SENSOR CIRCUIT ) |
| F and AUTO | A short in the sunlight sensor circuit (see DTC B1230 OR DTC INDICATOR F AND AUTO: A SHORT IN THE SUNLIGHT SENSOR CIRCUIT ) |
| G and AUTO | An open in the evaporator temperature sensor circuit (see DTC B1231 OR DTC INDICATOR G AND AUTO: AN OPEN IN THE EVAPORATOR TEMPERATURE SENSOR CIRCUIT ) |
| H and AUTO | A short in the evaporator temperature sensor circuit (see DTC B1232 OR DTC INDICATOR H AND AUTO: A SHORT IN THE EVAPORATOR TEMPERATURE SENSOR CIRCUIT ) |
| J and AUTO | An open in the driver's air mix control motor circuit (see DTC B1233 OR DTC INDICATOR J AND AUTO: AN OPEN IN THE DRIVER'S AIR MIX CONTROL MOTOR CIRCUIT ) |
| K and AUTO | A short in the driver's air mix control motor circuit (see DTC B1234 OR DTC INDICATOR K AND AUTO: A SHORT IN THE DRIVER'S AIR MIX CONTROL MOTOR CIRCUIT ) |
| L and AUTO | A problem in the driver's air mix control linkage, door, or motor (see DTC B1235 OR DTC INDICATOR L AND AUTO: A PROBLEM IN THE DRIVER'S AIR MIX CONTROL LINKAGE, DOOR, OR MOTOR ) |
| M and AUTO | An open in the passenger's air mix control motor circuit (see DTC B1236 OR DTC INDICATOR M AND AUTO: AN OPEN IN THE PASSENGER'S AIR MIX CONTROL MOTOR CIRCUIT ) |
| N and AUTO | A short in the passenger's air mix control motor circuit (see DTC B1237 OR DTC INDICATOR N AND AUTO: A SHORT IN THE PASSENGER'S AIR MIX CONTROL MOTOR CIRCUIT ) |
| P and AUTO | A problem in the passenger's air mix control linkage, door, or motor (see DTC B1238 OR DTC INDICATOR P AND AUTO: A PROBLEM IN THE PASSENGER'S AIR MIX CONTROL LINKAGE, DOOR, OR MOTOR ) |
| A | An open or short in the mode control motor circuit (see DTC B1239 OR DTC INDICATOR A: AN OPEN OR SHORT IN THE MODE CONTROL MOTOR CIRCUIT ) |
| B | A problem in the mode control linkage, doors, or motor (see DTC B1240 OR DTC INDICATOR B: A PROBLEM IN THE MODE CONTROL LINKAGE, DOORS, OR MOTOR ) |
| F | A problem in the blower motor circuit (see DTC B1241 OR DTC INDICATOR F: A PROBLEM IN THE BLOWER MOTOR CIRCUIT ) |
| G | Climate control unit internal error (see DTC TROUBLESHOOTING ) |
| H | Climate control unit lost communication with gauge control module (VSP/NE message) (see DTC TROUBLESHOOTING ) |
| J | Climate control unit lost communication with gauge control module (ILLUMI message) (see DTC TROUBLESHOOTING ) |
| K | Climate control unit lost communication with gauge control module (ECT message) (see DTC TROUBLESHOOTING ) |
| M | Communication bus line error (bus-off) (see DTC TROUBLESHOOTING ) |
DTC CHART