B -- REPLACE A/C AMPLIFIER
A -- END
From 08/2009
HEATING / AIR CONDITIONING: AIR CONDITIONING SYSTEM: B1423/23: Pressure Sensor Circuit
B1423/23 - Pressure Sensor Circuit
DESCRIPTION
This DTC is output when refrigerant pressure on the high pressure side is extremely low (0.19 MPa (2.0 kgf/cm2, 28 psi) or less) or extremely high
(3.14 MPa (32.0 kgf/cm2, 455 psi) or more). The A/C pressure sensor is installed on the high pressure line. It detects refrigerant pressure to output a
refrigerant pressure signal to the A/C amplifier. The A/C amplifier converts this signal to a pressure value according to the sensor characteristics to
control the compressor.
WIRING DIAGRAM
INSPECTION PROCEDURE
PROCEDURE
1. CHECK HARNESS AND CONNECTOR (POWER SOURCE CIRCUIT)
(a) Disconnect the A/C pressure sensor connector.
(b) Measure the voltage according to the value(s) in the table below.
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