Checking for DTCs
WARNING: This page is about a different car, the 2013 Acura MDX, 2012 Acura MDX, 2011 Acura MDX, and 2010 Acura MDX. However, it is still accessible from the selected car via links, so may be relevant.
The temperature display indicates single or multiple DTCs. If no DTCs are present, the indicator remains blank.
NOTE:
If the driver's temperature indicator segments A, C, E, G, J, M, with the AUTO indicator, the MODE indicator, and the WINDSHIELD DEFROST indicator are on at the same time, there may be an open in the sensor common ground wire.
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Courtesy of AMERICAN HONDA MOTOR CO., INC.
| DTC (Driver's Temperature Indicator Segments, AUTO, MODE, and WINDSHIELD DEFROST 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 (front) (see DTC B1231 OR DTC INDICATOR G AND AUTO: AN OPEN IN THE EVAPORATOR TEMPERATURE SENSOR CIRCUIT (FRONT)
) |
| H and AUTO |
A short in the evaporator temperature sensor circuit (front) (see DTC B1232 OR DTC INDICATOR H AND AUTO: A SHORT IN THE EVAPORATOR TEMPERATURE SENSOR CIRCUIT (FRONT)
) |
| J and AUTO |
An open in the air mix control motor circuit (driver's) (see DTC B1233 OR DTC INDICATOR J AND AUTO: AN OPEN IN THE AIR MIX CONTROL MOTOR CIRCUIT (DRIVER'S)
) |
| K and AUTO |
A short in the air mix control motor circuit (driver's) (see DTC B1234 OR DTC INDICATOR K AND AUTO: A SHORT IN THE AIR MIX CONTROL MOTOR CIRCUIT (DRIVER'S)
) |
| L and AUTO |
A problem in the air mix control motor circuit, linkage, door, or motor (driver's) (see DTC B1235 OR DTC INDICATOR L AND AUTO: A PROBLEM IN THE AIR MIX CONTROL MOTOR CIRCUIT, LINKAGE, DOOR, OR MOTOR (DRIVER'S)
) |
| 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' AIR MIX CONTROL MOTOR CIRCUIT
) |
| P and AUTO |
A problem in the passenger's air mix control motor circuit, linkage, door, or motor (see DTC B1238 OR DTC INDICATOR P AND AUTO: A PROBLEM IN THE PASSENGER'S AIR MIX CONTROL MOTOR CIRCUIT, LINKAGE, DOOR, OR MOTOR
) |
| DTC (Driver's Temperature Indicator Segment, AUTO, MODE, and WINDSHIELD DEFROST Indicator) |
Detection Item |
| AUTO |
Climate control unit lost communication with gauge control module (ECT message) (see DTC B1205: CLIMATE CONTROL UNIT LOST COMMUNICATION WITH GAUGE CONTROL MODULE (VSP/NE MESSAGE); DTC B1206 OR DTC INDICATOR AUTO: CLIMATE CONTROL UNIT LOST COMMUNICATION WITH GAUGE CONTROL MODULE (COOLANT TEMP MESSAGE); DTC B1207; CLIMATE CONTROL UNIT LOST COMMUNICATION WITH GAUGE CONTROL MODULE (ILLUMINATION MESSAGE)
) |
| A and MODE |
An open or short in the mode control motor circuit (front) (see DTC B1239 OR DTC INDICATOR A AND MODE: AN OPEN OR SHORT IN THE MODE CONTROL MOTOR CIRCUIT (FRONT)
) |
| B and MODE |
A problem in the front mode control motor circuit, linkage, doors, or motor (front) (see DTC B1240 OR DTC INDICATOR B AND MODE: A PROBLEM IN THE FRONT MODE CONTROL MOTOR CIRCUIT, LINKAGE, DOORS, OR MOTOR (FRONT)
) |
| C and MODE |
A problem in the blower motor circuit (front) (see DTC B1241 OR DTC INDICATOR C AND MODE: A PROBLEM IN THE BLOWER MOTOR CIRCUIT (FRONT)
) |
| F and MODE |
An open in the rear air mix control motor circuit (see DTC B1244 OR DTC INDICATOR F AND MODE: AN OPEN IN THE REAR AIR MIX CONTROL MOTOR CIRCUIT
) |
| G and MODE |
A short in the rear air mix control motor circuit (see DTC B1245 OR DTC INDICATOR G AND MODE: A SHORT IN THE REAR AIR MIX CONTROL MOTOR CIRCUIT
) |
| H and MODE |
A problem in the rear air mix control motor circuit, linkage, door, or motor (see DTC B1246 OR DTC INDICATOR H AND MODE: A PROBLEM IN THE REAR AIR MIX CONTROL MOTOR CIRCUIT, LINKAGE, DOOR, OR MOTOR
) |
| J and MODE |
An open or short in the recirculation control motor circuit (see DTC B1215 OR DTC INDICATOR J AND MODE: AN OPEN OR SHORT IN THE RECIRCULATION CONTROL MOTOR CIRCUIT
) |
| K and MODE |
A problem in the recirculation control motor circuit, linkage, door, or motor (see DTC B2983 OR DTC INDICATOR K AND MODE: A PROBLEM IN THE RECIRCULATION CONTROL MOTOR CIRCUIT, LINKAGE, DOOR, OR MOTOR
) |
| M and MODE |
A problem in the rear blower motor circuit (see DTC B1223 OR DTC INDICATOR M AND MODE: A PROBLEM IN THE REAR BLOWER MOTOR CIRCUIT
) |
| N and MODE |
An open in the rear evaporator temperature sensor circuit (see DTC B1213 OR DTC INDICATOR N AND MODE: AN OPEN IN THE REAR EVAPORATOR TEMPERATURE SENSOR CIRCUIT
) |
| P and MODE |
A short in the rear evaporator temperature sensor circuit (see DTC B1214 OR DTC INDICATOR P AND MODE: A SHORT IN THE REAR EVAPORATOR TEMPERATURE SENSOR CIRCUIT
) |
| A and WINDSHIELD DEFROST |
An open in the humidity sensor circuit (see DTC B2967 OR DTC INDICATOR A AND WINDSHIELD DEFROST: AN OPEN IN THE HUMIDITY SENSOR CIRCUIT
), a short in the humidity sensor circuit (see DTC B2968 OR DTC INDICATOR A AND WINDSHIELD DEFROST: A SHORT IN THE HUMIDITY SENSOR CIRCUIT
) |
| B and WINDSHIELD DEFROST |
An open in the A/C pressure sensor circuit (see DTC B2979 OR DTC INDICATOR B AND WINDSHIELD DEFROST: AN OPEN IN THE A/C PRESSURE SENSOR CIRCUIT
), a short in the A/C pressure sensor circuit (see DTC B2980 OR DTC INDICATOR B AND WINDSHIELD DEFROST: A SHORT IN THE A/C PRESSURE SENSOR CIRCUIT
) |