Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Climate Control DTCS
/NE message) B1206 Climate control unit lost communication with gauge control module (coolant temp message) B1207 Climate control unit lost communication with gauge control module (illumination message) B1213 An open in the rear evaporator temperature sensor circuit B1214 A short in the rear evaporator temperature sensor circuit B1215 An open or short in the recirculation control motor circuit B1223 A problem in the rear blower motor circuit B1225 An open in the in-car temperature sensor circuit B1226 A short in the in-car temperature sensor circuit B1227 An open in the outside air temperature sensor circuit B1228 A short in the outside air temperature sensor circuit B1229 An open in the sunlight sensor circuit B1230 A short in the sunlight sensor circuit B1231 An open in the evaporator temperature sensor circuit (front) B1232 A short in the evaporator temperature sensor circuit (front) B1233 An open in the air mix control motor circuit (driver's) B1234 A short in the air mix control motor circuit (driver's) B1235 A problem in the air mix control motor circuit, linkage, door, or motor (driver's) B1236 An open in the passenger's air mix control motor circuit B1237 A short in the passenger's air mix control motor circuit B1238 A problem in the passenger's air mix control motor circuit, linkage, door, or motor B1239 An open or short in the mode control motor circuit (front) B1240 A problem in the mode control motor circuit, linkage, doors, or motor (front) B1241 A problem in the front blower motor circuit B1244 An open in the rear air mix control motor circuit B1245 A short in the rear air mix control motor circuit B1246 A problem in the rear air mix control motor circuit, linkage, door, or motor B2965 Rear communication failure B2967 An open in the humidity sensor circuit B2968 A short in the humidity sensor circuit B2969 Climate control unit lost communication with MICU (WIPSW message) B2970 Climate control unit lost communication with gauge control unit (RM message) B2979 An open in the A/C pressure sensor circuit B2980 A short in the A/C pressure sensor circuit B2983 A problem in the recirculation control motor circuit, linkage, door, or motor B2991 Climate control unit lost communication with audio system
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.
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