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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 B1451/51 Solenoid of the Externally Changeable Compressor 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 solenoid sends appropriate signals to the A/C ECU.

DETECTION ITEM

DTC No. Detection Item Trouble Area
B1451/51 Short to ground or to power source circuit in Solenoid of the externally changeable compressor circuit
  • Compressor.
  • Harness and connector between A/C ECU and solenoid of the externally changeable compressor.
  • A/C ECU.
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