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Checking for DTCs

The temperature display indicates single or multiple DTCs. If no DTCs are present, the indicator remains blank.

NOTE: If the driver's indicator segments A, C, E, G, J, and M, with the AUTO indicator, MODE indicator, and the WINDSHIELD DEFROST indicator are on at the same time, there may be an open in the sensor common ground wire.
Fig 1: Identifying Driver's Temperature Indicator
G08070937Courtesy of AMERICAN HONDA MOTOR CO., INC.
Fig 2: Identifying Auto Indicator
G08070938Courtesy of AMERICAN HONDA MOTOR CO., INC.
Fig 3: Identifying Mode Indicator
G08070939Courtesy of AMERICAN HONDA MOTOR CO., INC.
Fig 4: Identifying Windshield Defrost Indicator
G08070940Courtesy of AMERICAN HONDA MOTOR CO., INC.
DTC (Driver's Temperature Indicator Segment, AUTO, MODE, and WINDSHIELD DEFROST Indicator) Detection Item
AUTO Engine coolant temperature (ECT) sensor signal error. Check for DTCs (P2183, P2184, or P2185) in the PGM-FI system and go to the indicated DTC'S TROUBLESHOOTING . If no DTCs are found, replace the climate control unit (see CLIMATE CONTROL UNIT REMOVAL/INSTALLATION  )
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 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'S 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  )
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  )
B and WINDSHIELD DEFROST A short in the humidity sensor circuit (see DTC B2968 OR DTC INDICATOR B AND WINDSHIELD DEFROST: A SHORT IN THE HUMIDITY SENSOR CIRCUIT  )
E and WINDSHIELD DEFROST An open in the A/C pressure sensor circuit (see DTC B2979 OR DTC INDICATOR E AND WINDSHIELD DEFROST: AN OPEN IN THE A/C PRESSURE SENSOR CIRCUIT  )
F and WINDSHIELD DEFROST A short in the A/C pressure sensor circuit (see DTC B2980 OR DTC INDICATOR F AND WINDSHIELD DEFROST: A SHORT IN THE A/C PRESSURE SENSOR CIRCUIT  )
A and MODE An open or short in the mode control motor circuit (driver's) (see DTC B1239 OR DTC INDICATOR A AND MODE: AN OPEN OR SHORT IN THE MODE CONTROL MOTOR CIRCUIT (DRIVER'S)  )
B and MODE A problem in the mode control motor circuit, linkage, doors, or motor (see DTC B1240 OR DTC INDICATOR B AND MODE: A PROBLEM IN THE MODE CONTROL MOTOR CIRCUIT, LINKAGE, DOORS, OR MOTOR (DRIVER'S)  )
C and MODE A problem in the blower motor circuit (see DTC B1241 OR DTC INDICATOR C AND MODE: A PROBLEM IN THE BLOWER MOTOR CIRCUIT  )
E and MODE An open or short in the passenger's mode control motor circuit (see DTC B1242 OR DTC INDICATOR E AND MODE: AN OPEN OR SHORT IN THE PASSENGER'S MODE CONTROL MOTOR CIRCUIT  )
F and MODE A problem in the passenger's mode control motor circuit, linkage, doors, or motor (see DTC B1243 OR DTC INDICATOR F AND MODE: A PROBLEM IN THE PASSENGER'S MODE CONTROL MOTOR CIRCUIT, LINKAGE, DOORS, 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  )