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Home >> Toyota >> 2001 >> Sienna CE >> Repair and Diagnosis >> External Pages >> Different car >> Section 477 (Air Conditioning System - Diagnosis) >> Circuit Inspection >> DTC B1423/23 Pressure Sensor Circuit >> Circuit Description

Circuit Description

WARNING: This page is about a different car, the 2003 Lexus LS 430. However, it is still accessible from the selected car via links, so may be relevant.

This sensor sends the appropriate signals to the A/C ECU when A/C refrigerant pressure drops too low or rises too high.

DETECTION ITEM

DTC No. Detection Item Trouble Area
B1423/23 Open or short in pressure sensor circuit
  • Abnormality with pressure sensor.
  • Harness or connector between pressure sensor and A/C ECU.
  • Refrigerant pipe line.
  • A/C ECU.
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