Sunday, August 2, 2020

2010 Lexus Truck RX 350 AWD V6-3.5L (2GR-FE) B CODE Page 454


(b) Turn the engine switch on (IG).



(c) Turn the Techstream on.



(d) Enter the following menus: Body Electrical / Air Conditioner / Active Test.



(e) Check the operation by referring to the table below.



Air Conditioner



OK:



Air temperature changes in accordance with each control range.



NG -- INSPECT AIR MIX CONTROL SERVO MOTOR



OK -- REPLACE A/C AMPLIFIER



3. INSPECT AIR MIX CONTROL SERVO MOTOR



(a) Replace the air mix control servo motor See: Heating and Air Conditioning/Housing Assembly HVAC/Service and



Repair/Overhaul/Disassembly.



HINT



Since the servo motor cannot be inspected while it is removed from the vehicle, replace the servo motor with a new or a known



good one and check that the condition returns to normal.



(b) Check for the DTC.



Result:



B -- END (AIR MIX CONTROL SERVO MOTOR WAS DEFECTIVE)



A -- Continue to next step.



1. INSPECT AIR CONDITIONING HARNESS



(a) Replace the air conditioning harness See: Heating and Air Conditioning/Housing Assembly HVAC/Service and



Repair/Overhaul/Disassembly.



HINT



Since the air conditioning harness cannot be inspected while it is removed from the vehicle, replace the air conditioning harness



with a new or a known good one and check that the condition returns to normal.



(b) Check for the DTC.



Result:



B -- END (AIR CONDITIONING HARNESS WAS DEFECTIVE)



A -- REPLACE A/C AMPLIFIER



From 08/2009



HEATING / AIR CONDITIONING: AIR CONDITIONING SYSTEM: B1441/41: Air Mix Damper Control Servo Motor Circuit

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