AIR CONDITIONING SYSTEM (for Sedan) > DIAGNOSTIC TROUBLE CODE CHART


  1. If a trouble code is displayed during the DTC check, inspect the suspected areas listed for that code. For details of the code, refer to the "See page" in the DTC chart.
  2. Inspect the fuse and relay before investigating the suspected areas shown in the table below.

HINT:
When the air conditioning system functions properly, DTC B1400/00 is output.

Air Conditioning System 
DTC Code
Detection Item
Trouble Area
Memory
See page
B1412/12
Ambient Temperature Sensor Circuit
- Ambient temperature sensor
- Harness and connector between ambient temperature sensor and air conditioning amplifier
- Air conditioning amplifier
-
 Click here
B1413/13
Evaporator Temperature Sensor Circuit
- No .1 cooler thermistor (evaporator temperature sensor)
- Harness and connector between No .1 cooler thermistor (evaporator temperature sensor) and air conditioning amplifier
- Air conditioning amplifier
-
 Click here
B1423/23
Pressure Sensor Circuit
- Air conditioning pressure sensor
- Harness and connector between air conditioning pressure sensor and air conditioning amplifier
- Air conditioning amplifier
-
 Click here
B1451/51
Compressor Solenoid Circuit
- Compressor and pulley
- Harness and connector between air conditioning amplifier and compressor and pulley
- Air conditioning amplifier
-
 Click here
B1499/99
Multiplex Communication Circuit
- Air conditioning amplifier power source circuit
- Air conditioning amplifier
- ECM
- Combination meter assembly
- CAN communication line
-
 Click here