1997 Infiniti Q45 A/C & Heater Service (ONLINE REPAIR MANUALS)

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A/C & HEATER SERVICE PROCEDURES FOR 1997 Infiniti Q45 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 1997 Infiniti Q45 cars and light trucks from 1990+

Air Bag System Precautions -> Infiniti -> Disarming
Vehicle: 1997 Infiniti Q45 4.1 V8 GAS

For "Infiniti QX4" Information, Refer To "Pathfinder" In "Nissan."

  • Turn ignition Off, then disconnect battery ground cable.
  • On 1990-97 models, wait at least 10 minutes after disconnecting the battery ground cable before performing any service procedures.
  • On 1998-2004 models, wait at least three minutes after disconnecting both b...

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A/C & HEATER SERVICE PROCEDURES FOR 1997 Infiniti Q45 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 1997 Infiniti Q45 cars and light trucks from 1990+

Electrical Symbol & Wire Color Code Identification -> Electrical Symbol Identification -> Imported Vehicles
Vehicle: 1997 Infiniti Q45 4.1 V8 GAS

[[table data]]

CLICK HERE TO GET FULL ACCESS TO 1997 Infiniti Q45 A/C & HEATER SERVICE PROCEDURES

A/C & HEATER SERVICE PROCEDURES FOR 1997 Infiniti Q45 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 1997 Infiniti Q45 cars and light trucks from 1990+

Infiniti -> Cooling Fans -> Q45 -> Component Diagnosis & Testing -> Component Replacement -> Condenser Fan Motor -> Condenser Fan Relay -> Description -> Thermo Switch -> Troubleshooting
Vehicle: 1997 Infiniti Q45 4.1 V8 GAS

Description

The Q45 uses a air conditioning condenser cooling fan, this system consists of a cooling fan motor, fan relay, and thermoswitch. The condenser fan should operate when coolant temperature reaches approximately 221°F.

Troubleshooting

Refer to Fig. for cooling fan troubleshooting procedure.

Component Diagnosis & Testing
Condenser Fan Relay
  • Connect battery and ohmmeter between terminals as shown in Fig. .
  • Continuity should exist. If no continuity exists replace relay.
Condenser Fan Motor
  • Disconnect fan m...

CLICK HERE TO GET FULL ACCESS TO 1997 Infiniti Q45 A/C & HEATER SERVICE PROCEDURES

A/C & HEATER SERVICE PROCEDURES FOR 1997 Infiniti Q45 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 1997 Infiniti Q45 cars and light trucks from 1990+

Infiniti -> Component Replacement & Adjustment -> Expansion Valve, Replace
Vehicle: 1997 Infiniti Q45 4.1 V8 GAS

Refer to "Evapo... "

CLICK HERE TO GET FULL ACCESS TO 1997 Infiniti Q45 A/C & HEATER SERVICE PROCEDURES

A/C & HEATER SERVICE PROCEDURES FOR 1997 Infiniti Q45 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 1997 Infiniti Q45 cars and light trucks from 1990+

Electrical Symbol & Wire Color Code Identification -> Electrical Symbol Identification -> Imported Vehicles
Vehicle: 1997 Infiniti Q45 4.1 V8 GAS

[[table data]]

CLICK HERE TO GET FULL ACCESS TO 1997 Infiniti Q45 A/C & HEATER SERVICE PROCEDURES

A/C & HEATER SERVICE PROCEDURES FOR 1997 Infiniti Q45 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 1997 Infiniti Q45 cars and light trucks from 1990+

Infiniti -> Automatic Temperature Control System Diagnosis & Testing, Q45 -> A/C Component Diagnosis & Testing -> 1996 -> A/C pressure Switch -> A/C Relay -> A/C, Condenser Fan & Blower High Relay -> Ambient Sensor -> Blower Motor -> HI Relay -> In-Vehicle Sensor -> Intake Sensor -> Potentiometer Balance Resistor (PBR) -> Sunload Sensor -> Triple Pressure Switch -> Water Temperature Sensor
Vehicle: 1997 Infiniti Q45 4.1 V8 GAS

A/C pressure Switch
  • Conduct continuity test while measuring pressure.
  • When high pressure side line pressure is decreasing to 178-192 psi continuity should not exist and increasing to 206-220 psi continuity should exist.
A/C Relay

Ensure circuit continuity between terminals by supplying 12 volts to coil side terminal of A/C relay.

Ambient Sensor
  • Disconnect ambient sensor connector.
  • On 1996 models, measure resistance between terminals 1 and 2 at sensor harness side. Refer to Fig. for resistance specifi...

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