A/C-Heater Systems DTCS
A/C-HEATER SYSTEMS DIAGNOSTIC TROUBLE CODE (DTC) LIST
| DTC | Description | Perform Test |
|---|---|---|
| B1242 | Air flow recirculation door driver circuit failure | C |
| B1251 | Air temperature internal sensor circuit open | D |
| B1253 | Air temperature internal sensor circuit short to ground | D |
| B1255 | Air temperature external sensor circuit open | F |
| B1257 | Air temperature external sensor circuit short to ground | F |
| B1259 | Solar radiation sensor circuit open | G |
| B1261 | Solar radiation sensor circuit short to ground | G |
| B1262 | Servo motor defrost circuit failure | C |
| B1263 | Servo motor vent circuit failure | C: |
| B1264 | Servo motor floor circuit failure | C |
| B1265 | Servo motor cold air bypass circuit failure | INSPECT the vehicle for the presence of a cold air bypass door actuator. If a cold air bypass door actuator is present, Go To C . If a cold air bypass door actuator is not present, ignore DTC B1265. |
| B1342 | ECU is defective | INSTALL a new DATC module. |
| B1676 | Battery voltage out of range | REFER to GENERATORS & REGULATORS |
| B1946 | Climate control A/C post evaporator sensor circuit failure | E |
| B1947 | Climate control A/C post evaporator sensor circuit short to ground | E |
| B1966 | A/C post heater sensor driver side circuit failure | E |
| B1967 | A/C post heater sensor driver side circuit short to ground | E |
| B2428 | A/C post heater sensor passenger side circuit failure | E |
| B2429 | A/C post heater sensor passenger side circuit short to ground | E |
| B2797 | Driver coolant control valve open circuit | J |
| B2798 | Driver coolant control valve circuit short to ground | H |
| B2799 | Passenger coolant control valve open circuit | J |
| B2800 | Passenger coolant control valve circuit short to ground | H |