ATC-34
TROUBLE DIAGNOSIS
TROUBLE DIAGNOSISPFP:00004
How to Perform Trouble Diagnoses for Quick and Accurate RepairEJS004GO
WORK FLOW
SYMPTOM TABLE
*1ATC-65, "Operational Check"
SHA900E
Symptom Reference Page
A/C system does not come on. Go to Trouble Diagnosis Procedure for A/C System.ATC-67, "
Power
Supply and
Ground Circuit for
Auto Amp."
Air outlet does not change.
Go to Trouble Diagnosis Procedure for Mode Door Motor. (LAN)ATC-73, "Mode
Door Motor Cir-
cuit"Mode door motor does not operate normally.
Discharge air temperature does not change.
Go to Trouble Diagnosis Procedure for Air Mix Door Motor. (LAN)AT C - 7 6 , "
Air Mix
Door Motor Cir-
cuit"Air mix door motor does not operate nor-
mally.
Intake door does not change.
Go to Trouble Diagnosis Procedure for Intake Door Motor. (LAN)AT C - 7 9 , "
Intake
Door Motor Cir-
cuit"Intake door motor does not operate normally.
Blower motor operation is malfunctioning.
Go to Trouble Diagnosis Procedure for Blower Motor.AT C - 8 2 , "
Blower
Motor Circuit"Blower motor operation is malfunctioning
under out of starting fan speed control.
Magnet clutch does not engage. Go to Trouble Diagnosis Procedure for Magnet Clutch.AT C - 8 8 , "
Magnet
Clutch Circuit"
Insufficient cooling Go to Trouble Diagnosis Procedure for Insufficient Cooling.ATC-96, "Insuffi-
cient Cooling"
Insufficient heating Go to Trouble Diagnosis Procedure for Insufficient Heating.ATC-105, "Insuffi-
cient Heating"
Noise Go to Trouble Diagnosis Procedure for Noise.ATC-107, "Noise"
Self-diagnosis cannot be performed. Go to Trouble Diagnosis Procedure for Self-diagnosis.ATC-108, "Self-
Diagnosis"