DTC B1423/23: Pressure Sensor Circuit [10/2014 - ]: Description
This DTC is stored if refrigerant pressure on the high pressure side is extremely low (176 kPa (1.8 kgf/cm2
, 26 psi) or less) or extremely high (3025 kPa (30.8 kgf/cm2
, 439 psi) or more). The air conditioner pressure sensor, which is installed on the pipe on the high pressure side to detect refrigerant pressure, sends a refrigerant pressure signal to the air conditioning amplifier assembly. The air conditioning amplifier assembly converts this signal to a pressure value according to the sensor characteristics and uses it to control the compressor.
| DTC No. |
DTC Detection Condition |
Trouble Area |
| B1423/23 |
- Open or short in air conditioner pressure sensor circuit
- Refrigerant pressure on high pressure side is extremely low (176 kPa (1.8 kgf/cm2
, 26 psi) or less) or extremely high (3025 kPa (30.8 kgf/cm2
, 439 psi) or more)
|
- Air conditioner pressure sensor
- Harness or connector between air conditioner pressure sensor and air conditioning amplifier assembly
- Air conditioning amplifier assembly
- Cooler expansion valve (blocked, stuck)
- Cooler dryer (moisture in the refrigerant cycle cannot be absorbed)
- Cooler condenser assembly (blocked, deterioration of cooling capacity due to dirt)
- Cooling fan system (condenser assembly cannot be cooled down)
- Air conditioning system (leaks, blocked)
|