Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSLEXUS2004LX 470 V8-4.7L (2UZ-FE)REPAIR AND DIAGNOSISHEATING AND AIR CONDITIONINGCONTROL MODULE HVACTESTING AND INSPECTIONCOMPONENT TESTS AND GENERAL DIAGNOSTICS
2004 Lexus LX 470 V8-4.7L (2UZ-FE)
Component Tests and General Diagnostics
2004 Lexus LX 470 V8-4.7L (2UZ-FE)SECTION Component Tests and General Diagnostics
AIR CONDITIONING AMPLIFIER (for Rear A/C)
INSPECTION
1. REMOVE REAR DOOR SCUFF PLATE RH
2. REMOVE REAR FLOOR MAT SUPPORT PLATE
3. REMOVE QUARTER TRIM PANEL RH
4. REMOVE A/C AMPLIFIER
a. Disconnect the connectors.
b. Remove the 2 screws and A/C amplifier.
5. INSPECT REAR A/C AMPLIFIER CIRCUIT
INSPECTION
1. REMOVE REAR DOOR SCUFF PLATE RH
2. REMOVE REAR FLOOR MAT SUPPORT PLATE
3. REMOVE QUARTER TRIM PANEL RH
4. REMOVE A/C AMPLIFIER
a. Disconnect the connectors.
b. Remove the 2 screws and A/C amplifier.
5. INSPECT REAR A/C AMPLIFIER CIRCUIT
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.