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 MANUALSTOYOTA2011LANDCRUISER V8-5.7L (3UR-FE)REPAIR AND DIAGNOSISHEATING AND AIR CONDITIONINGTESTING AND INSPECTIONSYMPTOM RELATED DIAGNOSTIC PROCEDURESAIR CONDITIONING CONTROL PANEL DOES NOT OPERATE
2011 Toyota Landcruiser V8-5.7L (3UR-FE)
Air Conditioning Control Panel Does Not Operate
2011 Toyota Landcruiser V8-5.7L (3UR-FE)SECTION Air Conditioning Control Panel Does Not Operate
HEATING / AIR CONDITIONING: AIR CONDITIONING SYSTEM: Air Conditioning Control Panel does not Operate
- Air Conditioning Control Panel does not Operate
DESCRIPTION
This circuit* consists of the air conditioning control assembly and the air conditioning amplifier assembly. When the air conditioning control assembly is operated, signals are transmitted to the air conditioning amplifier assembly through the LIN communication system.
If the LIN communication system malfunctions, the air conditioning amplifier assembly does not operate even if the air conditioning control assembly is operated.
HINT
*: w/o Navigation System
WIRING DIAGRAM
INSPECTION PROCEDURE
NOTICE:
Inspect the fuses for circuits related to this system before performing the following inspection procedure.
PROCEDURE
1. CHECK HARNESS AND CONNECTOR (AIR CONDITIONING CONTROL ASSEMBLY - BODY GROUND AND BATTERY)
(a) Disconnect the F10 air conditioning control assembly connector.
(b) Measure the resistance and voltage according to the value(s) in the table below.
Standard Resistance:
Standard Voltage:
Text in Illustration
NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- Continue to next step.
2. CHECK HARNESS AND CONNECTOR (AIR CONDITIONING AMPLIFIER ASSEMBLY - AIR CONDITIONING CONTROL ASSEMBLY)
(a) Disconnect the F10 air conditioning control assembly connector.
(b) Disconnect the E36 air conditioning amplifier assembly connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- Continue to next step.
3. CHECK AIR CONDITIONING CONTROL ASSEMBLY (OPERATION)
(a) Replace the air conditioning control assembly with a new or properly functioning one Removal.
(b) Operate the front air conditioning control to check that it functions properly.
OK:
Air conditioning control assembly function operates normally.
NG -- REPLACE AIR CONDITIONING AMPLIFIER ASSEMBLY Removal
OK -- REPLACE AIR CONDITIONING CONTROL ASSEMBLY Removal
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.