1995 Lexus SC400 A/C & Heater Service (ONLINE REPAIR MANUALS)

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A/C & HEATER SERVICE PROCEDURES FOR 1995 Lexus SC400 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 1995 Lexus SC400 cars and light trucks from 1990+

Lexus -> Component Replacement & Adjustment -> HEATER CORE, REPLACE -> ES 300 -> GS 300 -> LS 400 -> SC 300 & SC 400
Vehicle: 1995 Lexus SC400 4.0 V8 GAS

ES 300

  • Drain coolant from engine and radiator, then disconnect heater hoses from heater core inlet and outlet.
  • Remove two retaining clips and heater protector, Fig. .
  • Remove three screws and three retaining clamps, Fig. .
  • Pull heater core from case.
  • Reverse procedure to install.

GS 300

  • Remove heater unit as outlined under "Heater Unit, Replace."
  • Remove air outlet control servo motor, Fig. .
  • Remove heater duct, then air mix link cover.
  • Remove air max cool control servo motor, then air mix control servo motor...

CLICK HERE TO GET FULL ACCESS TO 1995 Lexus SC400 A/C & HEATER SERVICE PROCEDURES

A/C & HEATER SERVICE PROCEDURES FOR 1995 Lexus SC400 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 1995 Lexus SC400 cars and light trucks from 1990+

Air Bag System Precautions -> Lexus -> Disarming
Vehicle: 1995 Lexus SC400 4.0 V8 GAS

For Lexus LX 450 & LX 470 Information, Refer to "Land Cruiser" In "Toyota."

The Air Bag/Supplemental Restraint System (SRS) incorporates a back-up energy source that maintains sufficient deployment voltage for up to 90 seconds after the ignition is turned Off and the battery has been disconnected.

When the battery ground cable is disconnected, audio, clock and seat memory system will be canceled.

  • Note radio station settings...

CLICK HERE TO GET FULL ACCESS TO 1995 Lexus SC400 A/C & HEATER SERVICE PROCEDURES

A/C & HEATER SERVICE PROCEDURES FOR 1995 Lexus SC400 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 1995 Lexus SC400 cars and light trucks from 1990+

Lexus -> Electric Cooling Fans -> COMPONENT REPLACEMENT -> Fan Motor -> Fan Motor Relay -> Fan Motors -> GS 300 -> High Pressure Switch -> LS 400 -> SC 300 -> Water Temperature Switch
Vehicle: 1995 Lexus SC400 4.0 V8 GAS

GS 300

Fan Motor
  • Disconnect battery ground cable, then wait 90 seconds to begin work.
  • Remove engine undercover, then air cleaner duct.
  • Disconnect upper radiator hose from radiator.
  • Remove cooling fan, disconnect wire and connector from motor, then remove motor.
  • Reverse procedure to install.

LS 400

Fan Motors
  • Remove headlamp assemblies from vehicle.
  • Remove front bumper assembly.
  • Remove horns, then disconnect cooling fan electrical connectors.
  • On 1993-94 models, disconnect A/C ambie...

CLICK HERE TO GET FULL ACCESS TO 1995 Lexus SC400 A/C & HEATER SERVICE PROCEDURES

A/C & HEATER SERVICE PROCEDURES FOR 1995 Lexus SC400 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 1995 Lexus SC400 cars and light trucks from 1990+

Lexus -> Electric Cooling Fans -> DESCRIPTION -> GS 300 -> LS 400 -> SC 300
Vehicle: 1995 Lexus SC400 4.0 V8 GAS

GS 300

The system used on this model is operated by a series of relays and switches. Whenever the water temperature switch or the high pressure switch grounds, the cooling fan relays are energized, causing the cooling fans to operate.

LS 400

The system use...

CLICK HERE TO GET FULL ACCESS TO 1995 Lexus SC400 A/C & HEATER SERVICE PROCEDURES

A/C & HEATER SERVICE PROCEDURES FOR 1995 Lexus SC400 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 1995 Lexus SC400 cars and light trucks from 1990+

Imported Cars & Light Trucks & Vans -> 1993-95 -> System Inspection -> Compressor -> Condenser -> Evaporator -> Receiver/Drier -> Refrigerant Line Restrictions -> Thermostatic Expansion Valve
Vehicle: 1995 Lexus SC400 4.0 V8 GAS

While a detailed diagnostic procedure for all air conditioning systems would be impractical due to the many variations in construction and operation, there are three fundamental components of a total diagnosis:

  • Refrigerant systems must have an adequate, but not excessive charge.
  • Determination must be made whether the refrigerant system is governed by a cycling clutch compressor or by valves which control evaporator pressure.
  • The air distribution system (blower motor, switches, vacuum lines and air ducts) must be operational before checking the refrigera...

CLICK HERE TO GET FULL ACCESS TO 1995 Lexus SC400 A/C & HEATER SERVICE PROCEDURES

A/C & HEATER SERVICE PROCEDURES FOR 1995 Lexus SC400 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 1995 Lexus SC400 cars and light trucks from 1990+

Electrical Symbol & Wire Color Code Identification -> Electrical Symbol Identification -> Imported Vehicles
Vehicle: 1995 Lexus SC400 4.0 V8 GAS

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