1995 TOYOTA SUPRA ignition

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Page 43 of 2543

TOYOTA SUPRA 1995  Service Repair Manual (See page IN±30).
Check voltage between terminals TP and SG of A/C amplifier connector.
Check air mix damper position sensor.
Check and replace A/C amplifier.
Check harness and connector between A/C

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 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 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 57 of 2543

TOYOTA SUPRA 1995  Service Repair Manual INSPECTION PROCEDURE
Check voltage between terminal ACC of A/C amplifier connector and
body ground.
Remove the A/C amplifier with connector still connected
Voltage: Battery positive voltage
1. Turn ig

Page 59 of 2543

TOYOTA SUPRA 1995  Service Repair Manual Check voltage between terminal HR of A/C amplifier connector and
body ground.
Check heater relay.
Proceed to next circuit inspection shown on matrix
chart (See page AC±26).
Check HTR fuse.
Check and

Page 60 of 2543

TOYOTA SUPRA 1995  Service Repair Manual Blower Motor Circuit
CIRCUIT DESCRIPTION
This is the power source for the blower motor.
INSPECTION PROCEDURE
Check voltage between terminal BLW of A/C amplifier connector and
body ground.
Proceed to n

Page 61 of 2543

TOYOTA SUPRA 1995  Service Repair Manual (See page AC±99).
Check blower motor.
Go to step
Replace blower motor.
Check blower motor control relay.
Replace blower motor control relay.
Repair or replace harness or connector
Remove blower motor
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