DIAGNOSTIC TROUBLE CODE CHART
| CAUTION | During diagnosis, a DTC code associated with another system may be set when the ignition switch is turned on with connector(s) disconnected. After completing the repair, confirm all systems for DTC code(s). If DTC code(s) are set, erase them all. |
| DTC NO. | DIAGNOSTIC ITEM |
| B1001 | Heater air intake duct sensor system (short circuit) |
| B1002 | Heater air intake duct sensor system (open circuit) |
| B1011 | Ambient air temperature sensor system (short circuit) |
| B1012 | Ambient air temperature sensor system (open circuit) |
| B1021 | Air thermo sensor system (short circuit) |
| B1022 | Air thermo sensor system (open circuit) |
| B1041 | Air mixing damper control motor and potentiometer (potentiometer system shorted to its power supply) |
| B1042 | Air mixing damper control motor and potentiometer (potentiometer system shorted to its ground) |
| B1045 | Air mixing damper control motor and potentiometer (activating system failure) |
| B1061 | Mode selection damper control motor and potentiometer (potentiometer system shorted to its power supply) |
| B1062 | Mode selection damper control motor and potentiometer (potentiometer system shorted to its ground) |
| B1065 | Mode selection damper control motor and potentiometer (activating system failure) |
| U1073 | Bus off |
| U1100 | ECM < M/T > or PCM < A/T > time-out (related to engine) |
| U1111 | Multi-center display unit (middle grade type) time-out |
| U1120 | Failure information on ECM < M/T > or PCM < A/T > (related to engine) |
| (1) This diagnostic trouble code will be set even if the system is normal. |
| (1) | This diagnostic trouble code will be set even if the system is normal. |
DIAGNOSTIC TROUBLE CODE CHART
Scheme 5
Scheme 5: DTC B1001: HEATER AIR INTAKE DUCT SENSOR SYSTEM (SHORT CIRCUIT)