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Home >> Lexus >> 2024 >> TX 350 Base, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 116 (Heating / Air Conditioning System - Diagnostic Codes (2 Of 3)) >> AIR CONDITIONING SYSTEM (for PHEV Model) >> DTC P0CDF-72: Hybrid/EV Battery Cooling Magnetic Valve Actuator Stuck Open [12/2023 - ] >> Description

DTC P0CDF-72: Hybrid/EV Battery Cooling Magnetic Valve Actuator Stuck Open [12/2023 - ]: Description

WARNING: This page is about a different car, the 2024 Lexus TX 550h+. However, it is still accessible from the selected car via links, so may be relevant.

The battery cooling magnetic valve (No. 2 magnet valve assembly) is installed on the HV battery and is open when the ignition switch is turned off. Battery cooling magnetic valve (No. 2 magnet valve assembly) is opened and closed according to battery ECU assembly control during battery cooling.

During cooling or parallel dehumidification, if the battery cooling magnetic valve is stuck open, cooling performance decreases. Battery cooling functionality also decreases.

DTC No. Detection Item DTC Detection Condition Trouble Area MIL Memory DTC Output from Priority Note
P0CDF-72 Hybrid/EV Battery Cooling Magnetic Valve Actuator Stuck Open Diagnosis condition:
  1. When performing cooling or parallel dehumidification heating

Malfunction status:
  1. Battery cooling magnetic valve (No. 2 magnet valve assembly) open stuck

Detection time:
  1. Continuously for 240 seconds or more

Trip:
  1. 2 trip detection logic
  • Battery cooling magnetic valve (No. 2 magnet valve assembly)
  • Air conditioning amplifier assembly
Come on Memorized Air Conditioner B SAE Code:
  1. P0CE0