2001 Toyota 4runner A/C & Heater Service (ONLINE REPAIR MANUALS)

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A/C & HEATER SERVICE PROCEDURES FOR 2001 Toyota 4runner AUTOMOBILES

Air Conditioner and Heater Service Includes module configuration procedures, general service, maintenance, automatic temperature control, compressor services, electric cooling fans, vacuum diagrams, specifications, and manual air conditioning and heater diagnostics and replacement procedures for domestic and imported 2001 Toyota 4runner cars and light trucks from 1990+

Toyota -> Electric Cooling Fans -> Troubleshooting -> 1MZ-FE -> 2AZ-FE -> 2AZ-FE Engine -> 5S-FE Engine -> Avalon, Camry & Camry Solara w/1MZ-FE Engine -> Camry & Camry Solara -> Celica -> Condenser Fan -> Condenser Fan On-Vehicle Inspection -> Cooling Fan -> Cooling Fan Inspection -> Cooling Fan On-Vehicle Inspection -> Cooling Fan Relay Inspection -> Cooling Fans Inspection -> Corolla -> Echo -> Highlander -> MR2 -> No. 1 Cooling Fan Motor Inspection -> No. 2 Cooling Fan Motor Inspection -> On-Vehicle Inspection -> RAV4 -> Sienna
Vehicle: 2001 Toyota 4runner 3.4 V6 GAS

Avalon, Camry & Camry Solara w/1MZ-FE Engine

On-Vehicle Inspection
Condenser Fan
  • Inspect condenser fan operation with temperature below 190°F as follows:
    • Connect manifold gauge set to high and low sides of system.
    • Start engine.
    • Turn blower speed to HI, temperature control dial to COOL and A/C switch On.
    • Ensure refrigerant pressure is less than 220 psi.
    • Ensure cooling fan operates at low speed.
  • Connect condenser fan motor electrical connector, then inspect cooling fan operation with high tempera...

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A/C & HEATER SERVICE PROCEDURES FOR 2001 Toyota 4runner AUTOMOBILES

Air Conditioner and Heater Service Includes module configuration procedures, general service, maintenance, automatic temperature control, compressor services, electric cooling fans, vacuum diagrams, specifications, and manual air conditioning and heater diagnostics and replacement procedures for domestic and imported 2001 Toyota 4runner cars and light trucks from 1990+

Electrical Symbol & Wire Color Code Identification -> Wire Color Code Identification -> Imported Vehicles
Vehicle: 2001 Toyota 4runner 3.4 V6 GAS

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CLICK HERE TO GET FULL ACCESS TO 2001 Toyota 4runner A/C & HEATER SERVICE PROCEDURES

A/C & HEATER SERVICE PROCEDURES FOR 2001 Toyota 4runner AUTOMOBILES

Air Conditioner and Heater Service Includes module configuration procedures, general service, maintenance, automatic temperature control, compressor services, electric cooling fans, vacuum diagrams, specifications, and manual air conditioning and heater diagnostics and replacement procedures for domestic and imported 2001 Toyota 4runner cars and light trucks from 1990+

Air Bag System Precautions -> Toyota -> Arming
Vehicle: 2001 Toyota 4runner 3.4 V6 GAS

  • Ensure ignition switch is in Lock position.
  • Reconnect battery ground cable.
  • Wait at least 10 seconds before turning the ignition switch from the Lock position.
  • Place ignitio...

CLICK HERE TO GET FULL ACCESS TO 2001 Toyota 4runner A/C & HEATER SERVICE PROCEDURES

A/C & HEATER SERVICE PROCEDURES FOR 2001 Toyota 4runner AUTOMOBILES

Air Conditioner and Heater Service Includes module configuration procedures, general service, maintenance, automatic temperature control, compressor services, electric cooling fans, vacuum diagrams, specifications, and manual air conditioning and heater diagnostics and replacement procedures for domestic and imported 2001 Toyota 4runner cars and light trucks from 1990+

Charging Valve Locations -> Imported Cars & Light Trucks & Vans -> 2001-02
Vehicle: 2001 Toyota 4runner 3.4 V6 GAS

[[table data]]

CLICK HERE TO GET FULL ACCESS TO 2001 Toyota 4runner A/C & HEATER SERVICE PROCEDURES

A/C & HEATER SERVICE PROCEDURES FOR 2001 Toyota 4runner AUTOMOBILES

Air Conditioner and Heater Service Includes module configuration procedures, general service, maintenance, automatic temperature control, compressor services, electric cooling fans, vacuum diagrams, specifications, and manual air conditioning and heater diagnostics and replacement procedures for domestic and imported 2001 Toyota 4runner cars and light trucks from 1990+

Toyota -> Manual Air Conditioning & Heater System Diagnosis & Testing -> A/C System Troubleshooting -> 4-Door -> 4Runner -> 5-Door -> A/C Indicator Does Not Light When Turning Mode Control Dial To DEF Position -> A/C System Inoperative -> Air Inlet Door Inoperative On Two-Way Flow Position When Performing In These Conditions: Air Inlet Selector: FRESH, Blower Switch: ON, Temperature Control Selector: MAX. WARM, Mode Selector: FOOT OR FOOT/DEF (Two-Way Flow Heater) -> Avalon, Camry, Camry Solara & Sienna -> Blinking A/C Indicator -> Brightness Does Not Change When Lamp Control Switch Is Turned -> Celica -> Compressor Operates Intermittently -> Cool Air Comes Out Only At High Engine RPM -> Corolla, Highlander & MR2 -> Echo (Standard) -> Engine Idle Up Does Not Occur Or Is Continuous -> Front A/C -> Insufficient Air Flow -> Insufficient Cooling -> Land Cruiser -> No Air Flow Mode -> No Air Flow Mode Control -> No Air Inlet Control -> No Air Inlet Control (Two-Way Flow Heater) -> No Air Temperature -> No Air Temperature Control -> No Air Temperature Control w/Rear Heater -> No Blower Control -> No Blower Operation -> No Blower Operation (Two-Way Flow Heater) -> No Blower Operation w/Rear Heater -> No Compressor Operation -> No Condenser Fan Operation -> No Condenser Fan Operation (High Speed) -> No Condenser Fan Operation (Low Speed) -> No Condenser Fan Speed Change -> No Cool Air Comes Out -> No Engine Idle-Up When A/C Switch Is On -> No Engine Idle-Up With A/C Switch On -> No Mode Control -> No Temperature Control -> No Temperature Control (Only Max Cool Or Max Warm) -> No Warm Air Comes Out -> No Warm Air Comes out w/Rear Heater -> Output Air Is Warmer Or Cooler Than Set Temperature Or Response Is Slow -> PTC Heater Inoperative When Performing In These Conditions: Engine Coolant Temp: 140° or below, Engine Speed: 650 RPM Or Above, Temperature Control Selector: MAX. COOL (PTC HEATER) -> RAV4 -> Rear A/C -> Rear A/C System Inoperative -> Sequoia, Tacoma & Tundra -> Sienna
Vehicle: 2001 Toyota 4runner 3.4 V6 GAS

Avalon, Camry, Camry Solara & Sienna

Refer to for troubleshooting procedures.

Celica

No Blower Operation
  • Faulty HTR fuse.
  • Faulty ECU-B or WARNING fuses.
  • Faulty heater main relay.
  • Faulty blower motor.
  • Faulty blower resistor.
  • Faulty speed control switch.
  • Faulty wiring harness.
No Blower Control
  • Faulty blower motor.
  • Faulty blower resistor.
  • Faulty speed control switch.
  • Faulty wiring harness.
No Air Temperature
  • Improper engine coolant volume.
  • ...

CLICK HERE TO GET FULL ACCESS TO 2001 Toyota 4runner A/C & HEATER SERVICE PROCEDURES

A/C & HEATER SERVICE PROCEDURES FOR 2001 Toyota 4runner AUTOMOBILES

Air Conditioner and Heater Service Includes module configuration procedures, general service, maintenance, automatic temperature control, compressor services, electric cooling fans, vacuum diagrams, specifications, and manual air conditioning and heater diagnostics and replacement procedures for domestic and imported 2001 Toyota 4runner cars and light trucks from 1990+

Air Bag System Precautions -> Toyota -> Arming
Vehicle: 2001 Toyota 4runner 3.4 V6 GAS

  • Ensure ignition switch is in Lock position.
  • Reconnect battery ground cable.
  • Wait at least 10 seconds before turning the ignition switch from the Lock position.
  • Place ignitio...

CLICK HERE TO GET FULL ACCESS TO 2001 Toyota 4runner A/C & HEATER SERVICE PROCEDURES

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