AIR CONDITIONING SYSTEM (for Automatic Air Conditioning System) DIAGNOSTIC TROUBLE CODE CHART
| DTC Code | Detection Item | Trouble Area | Memory*4 | See page |
|---|---|---|---|---|
| B1411/11*1 | Room Temperature Sensor Circuit | - Room temperature sensor (cooler thermistor) - Harness and connector between room temperature sensor (cooler thermistor) and air conditioning amplifier - Air conditioning amplifier |
Memorized (4 sec. or more) |
|
| B1412/12*2 | Ambient Temperature Sensor Circuit | - Ambient temperature sensor (thermister assembly) - Harness and connector between ambient temperature sensor (thermister assembly) and combination meter assembly - Combination meter assembly - Air conditioning amplifier - CAN communication line |
Memorized (4 sec. or more) |
|
| B1413/13 | Evaporator Temperature Sensor Circuit | - Front evaporator temperature sensor (No. 1 cooler thermistor) - Harness and connector between front evaporator temperature sensor (No. 1 cooler thermistor) and air conditioning amplifier - Air conditioning amplifier |
Memorized (4 sec. or more) |
|
| B1423/23 | Pressure Sensor Circuit | - Air conditioner pressure sensor - Harness and connector - Expansion valve (blocked, stuck) - Condenser (blocked, deterioration of cooling capacity due to dirt) - Cooler dryer (moisture in refrigerant cycle cannot be absorbed) - Cooling fan (condenser cannot be cooled down) - Air conditioning system (leaks, blocked) - Refrigerant pipe line - Air conditioning amplifier |
- | |
| B1441/41 | Air Mix Damper Control Servo Motor Circuit | - Air mix control servo motor - Air conditioning harness - Air conditioning amplifier |
Memorized (30 sec. or more) |
|
| B1442/42 | Air Inlet Damper Control Servo Motor Circuit | - Air inlet control servo motor - Air conditioning harness - Air conditioning amplifier |
Memorized (30 sec. or more) |
|
| B1443/43 | Air Outlet Damper Control Servo Motor Circuit | - Air outlet control servo motor - Air conditioning harness - Air conditioning amplifier |
Memorized (30 sec. or more) |
|
| B1451/51 | Compressor Solenoid Circuit | - Air conditioing compressor - Harness and connector between air conditioning amplifier and air conditioning compressor - Air conditioing amplifier |
- | |
| B1479/79 | Flow Sensor Circuit | - Air conditioing compressor (flow sensor) - Harness and connector between flow sensor and air conditioning amplifier - Air conditioning amplifier |
Memorized (4 sec.)*5 (8.5 min. or more)*6 |
|
| B1497/97 | BUS IC Communication Malfunction | - Air conditioning harness - Air conditioning amplifier |
Memorized (10 sec. or more) |
|
| B14A2*3 | Driver Side Solar Sensor Short Circuit | - Solar sensor (automatic light control sensor) - Harness and connector between solar sensor (automatic light control sensor) and air conditioning amplifier - Harness and connector between solar sensor (automatic light control sensor) and main body ECU - Main body ECU - Air conditioning amplifier |
Memorized (4 sec. or more) |
|
| U0100 | Lost Communication with ECM | - CAN communication system - ECM |
- | |
| U0131 | Lost Communication with Electric Power Steering ECU | - CAN communication system - Electric power steering ECU |
- | |
| U0142 | Lost Communication with Main Body ECU | - CAN communication system - Main body ECU |
- | |
| U0155 | Lost Communication with Combination Meter | - CAN communication system - Combination meter assembly |
- |
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*1: If the cabin temperature is approx. -18.6°C (-1.48°F) or lower, DTC B1411/11 may be output even though the system is normal.
-
*2: If the ambient temperature is approx. -52.9°C (-63.22°F) or lower, DTC B1412/12 may be output even though the system is normal.
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*3: If the check is performed in a dark place, DTC B14A2 (solar sensor circuit abnormal) may be output even though the system is normal.
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*4: The air conditioning amplifier stores the DTC of the respective malfunction if it has occurred for the period of time indicated in the brackets.
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*5: Circuit is open or shorted.
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*6: Sensor is stuck.