1995 TOYOTA SUPRA Service Repair Manual

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Page 49 of 2543

TOYOTA SUPRA 1995 Service Repair Manual (See page IN±30). AC±50, Check voltage between terminals TPM and SG of A/C amplifier connector. Check and replace A/C amplifier. Repair or replace harness or connector. Check harness and connector b

Page 50 of 2543

TOYOTA SUPRA 1995 Service Repair Manual Blinking Light HI Air Outlet Damper Control Servo Motor Circuit CIRCUIT DESCRIPTION This circuit turns the servo motor and changes each mode damper position by the signals from the A/C amplifier. When

Page 51 of 2543

TOYOTA SUPRA 1995 Service Repair Manual INSPECTION PROCEDURE AC±22). Check and replace A/C amplifier. Repair or replace harness or connector. Check for open and short in harness and connector between A/C amplifier and air outlet damper con

Page 52 of 2543

TOYOTA SUPRA 1995 Service Repair Manual Back Up Power Source Circuit CIRCUIT DESCRIPTION This is the back up power source for the A/C amplifier. Power is supplied even when the ignition switch is off and is used for diagnostic sensor check

Page 53 of 2543

TOYOTA SUPRA 1995 Service Repair Manual INSPECTION PROCEDURE Remove the A/C amplifier with connector still con- ected. Measure voltage between terminal + B of air condi- tioner control assembly connector and body ground. Voltage: Battery po

Page 54 of 2543

TOYOTA SUPRA 1995 Service Repair Manual IG Power Source Circuit CIRCUIT DESCRIPTION This is the power source for the A/C amplifier and servo motors, etc. INSPECTION PROCEDURE Remove the A/C amplifier with connector still con- nected Voltage

Page 55 of 2543

TOYOTA SUPRA 1995 Service Repair Manual Check continuity between terminal GND of A/C amplifier and body ground. Measure resistance between terminal GND of A/C amplifier and body ground. Remove HTR fuse from J/B No. 1. Check continuity of H

Page 56 of 2543

TOYOTA SUPRA 1995 Service Repair Manual ACC Power Source Circuit CIRCUIT DESCRIPTION This circuit supplies power to the A/C amplifier. AC±56± AIR CONDITIONING SYSTEMTROUBLESHOOTING
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