1995 TOYOTA SUPRA Service Repair Manual

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TOYOTA SUPRA 1995  Service Repair Manual ±MEMO±
± AIR CONDITIONING SYSTEMTROUBLESHOOTINGAC±25

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TOYOTA SUPRA 1995  Service Repair Manual MATRIX CHART OF PROBLEM SYMPTOMS
If a normal code is displayed during the diagnostic sensor check but the trouble still occurs, perform trouble-
shooting  for each problem symptom, checking the circui

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TOYOTA SUPRA 1995  Service Repair Manual HINT:
wIf the instruction ºProceed to next circuit inspection shown on matrix chart is given in the flow chart
for each circuit, proceed to the circuit with the next highest number in the table to co

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TOYOTA SUPRA 1995  Service Repair Manual CIRCUIT INSPECTION
Blinking Light FACE Room Temperature Sensor Circuit
CIRCUIT DESCRIPTION
This sensor detects the temperature inside the cabin and sends the appropriate signals to the A/C am-
plifier

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TOYOTA SUPRA 1995  Service Repair Manual INSPECTION PROCEDURE
Proceed to next circuit inspection shown on matrix
chart (See page AC±26).  However, if the light is still
blinking, check and replace A/C amplifier.
(See page IN±30).(See Page

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TOYOTA SUPRA 1995  Service Repair Manual CIRCUIT DESCRIPTION
This sensor detects the ambient temperature and sends the appropriate signals to the A/C amplifier.
Diagnostic Sensor Check Detecting Condition
Open or short in ambient temperature

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TOYOTA SUPRA 1995  Service Repair Manual (See page AC±26)
(See page IN±30).
Check voltage between terminals TAM and SG of A/C amplifier connector.
Check ambient temperature sensor.
Check harness and connector between A/C amplifier and ambi

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TOYOTA SUPRA 1995  Service Repair Manual Blinking Light FOOT Evaporator Temperature Sensor Circuit
CIRCUIT DESCRIPTION
This sensor detects the temperature inside the cooling unit and sends the appropriate signals to the
A/C amplifier.
Diagno