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 MANUALSTOYOTA2001LANDCRUISER V8-4.7L (2UZ-FE)REPAIR AND DIAGNOSISHEATING AND AIR CONDITIONINGCONTROL ASSEMBLYTESTING AND INSPECTIONFRONT CONTROL ASSEMBLY
2001 Toyota Landcruiser V8-4.7L (2UZ-FE)
Front Control Assembly
2001 Toyota Landcruiser V8-4.7L (2UZ-FE)SECTION Front Control Assembly
INSPECTION
1. w/o Navigation system:
INSPECT ILLUMINATION OPERATION
a. Connect the positive (+) lead from the battery to terminal A-10 and negative (-) lead to terminal A-11 then check that the illuminations lights up.
If operation is not as specified, check the faulty bulb.
b. Remove the bulb.
c. Apply the tester as shown in the illustration to the test for continuity.
If continuity exists, replace the heater control. If no continuity exists, replace the bulb.
2. w/o Navigation system:
INSPECT INDICATORS OPERATION
a. Connect the positive (+) lead from the battery to terminal A-1 and negative (-) lead to terminal A-22.
b. Check that the indicators light up while operate the switches.
If operation is not as specified, replace the heater control.
3. INSPECT A/C CONTROL ASSEMBLY CIRCUIT
4. w/ Navigation system:
INSPECT ILLUMINATION OPERATION
a. Connect the positive (+) lead from the battery to terminal 9 and negative (-) lead to terminal 20 then check that the illuminations lights up.
If operation is not as specified, check the faulty bulb.
b. Remove the bulb.
c. Apply the tester as shown in the illustration to the test for continuity.
If continuity exists, replace the heater control. If no continuity exists, replace the bulb.
5. w/o Navigation system:
INSPECT INDICATORS OPERATION
a. Connect the positive (+) lead from the battery to terminal 10 and negative (-) lead to terminal 8.
b. Check that the indicators light up while operate the switches.
If operation is not as specified, replace the heater control.
6. INSPECT A/C CONTROL ASSEMBLY CIRCUIT
1. w/o Navigation system:
INSPECT ILLUMINATION OPERATION
a. Connect the positive (+) lead from the battery to terminal A-10 and negative (-) lead to terminal A-11 then check that the illuminations lights up.
If operation is not as specified, check the faulty bulb.
b. Remove the bulb.
c. Apply the tester as shown in the illustration to the test for continuity.
If continuity exists, replace the heater control. If no continuity exists, replace the bulb.
2. w/o Navigation system:
INSPECT INDICATORS OPERATION
a. Connect the positive (+) lead from the battery to terminal A-1 and negative (-) lead to terminal A-22.
b. Check that the indicators light up while operate the switches.
If operation is not as specified, replace the heater control.
3. INSPECT A/C CONTROL ASSEMBLY CIRCUIT
4. w/ Navigation system:
INSPECT ILLUMINATION OPERATION
a. Connect the positive (+) lead from the battery to terminal 9 and negative (-) lead to terminal 20 then check that the illuminations lights up.
If operation is not as specified, check the faulty bulb.
b. Remove the bulb.
c. Apply the tester as shown in the illustration to the test for continuity.
If continuity exists, replace the heater control. If no continuity exists, replace the bulb.
5. w/o Navigation system:
INSPECT INDICATORS OPERATION
a. Connect the positive (+) lead from the battery to terminal 10 and negative (-) lead to terminal 8.
b. Check that the indicators light up while operate the switches.
If operation is not as specified, replace the heater control.
6. INSPECT A/C CONTROL ASSEMBLY 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.