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June 16, 2014 Service bulletin

Condition where the HVAC system intermittently blows warm air from the vents with the A/C ON. When this...

Lexus technical service bulletin L-SB-0177-09 Rev for 2010-2011 Lexus RX350.

Bulletin number
L-SB-0177-09 Rev
Component
Equipment: appliance: air conditioner
Summary
TSB: Some RX 350 vehicles may exhibit a condition where the HVAC system intermittently blows warm air from the vents with the A/C ON. When this condition occurs, Diagnostic Trouble Code (DTC) B1479 (Flow Sensor Circuit) may also be stored in the A/C system as either a Current or History DTC. A malfunctioning A/C compressor flow sensor may cause this condition.

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