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Home >> Mazda >> 2024 >> CX-90 Turbo Select >> Repair and Diagnosis >> Electrical >> Motors, Switches, Relays >> On-Board Diagnostic - Dash-Electrical Supply Unit (2 Of 2) >> DTC B154B-00: Pressure Malfunction In Refrigerant Passage Is Determined

DTC B154B-00: Pressure Malfunction In Refrigerant Passage Is Determined

B154B:00 (DASH_ESU) DETECTION CONDITION AND POSSIBLE CAUSE

System malfunction location Pressure malfunction in refrigerant passage is determined
Detection condition
  • The dash-electrical supply unit detects a pressure malfunction in the refrigerant passage.
Fail-safe
  • Not applicable
Possible cause
  1. Refrigerant leakage from refrigerant passage
  2. Dash-electrical supply unit malfunction (Refer to [DASH-ELECTRICAL SUPPLY UNIT REMOVAL/INSTALLATION ] ).
Repeatability verification procedure
  1. Clear the DTC recorded in the memory. (See CLEARING DTC .)
  2. Wait for 20 min or more.
System wiring diagram
  • Not applicable
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