Infiniti Q45. Manual — part 110

TROUBLE DIAGNOSIS

ATC-35

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ATC

TROUBLE DIAGNOSIS

PFP:00004

How to Perform Trouble Diagnosis for Quick and Accurate Repair

NJS00086

WORK FLOW

SYMPTOM TABLE

*1

ATC-62, "Operational Check"

SHA900E

Symptom

Reference Page

A/C system does not come on.

Go to Trouble Diagnosis Procedure for A/C System.

ATC-64, "Power

Supply and

Ground Circuit for

Auto Amp."

A/C system cannot be controlled.

Go to Trouble Diagnosis Procedure for Multiplex Communication
Circuit.

ATC-120, "Multi-

plex Communica-

tion Circuit"

A/C display is not shown.

Go to Trouble Diagnosis Procedure for A/C Display.

ATC-107, "A/C
Display is Mal-

functioning"

A/C operation is not possible.

Go to Trouble Diagnosis Procedure for A/C Operation.

ATC-108, "A/C

Operation is Mal-

functioning"

Air outlet does not change.

Go to Trouble Diagnosis Procedure for Mode Door Motor. (LAN)

ATC-70, "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)

ATC-73, "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)

ATC-76, "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.

ATC-81, "Blower

Motor Circuit"

Magnet clutch does not engage.

Go to Trouble Diagnosis Procedure for Magnet Clutch.

ATC-86, "Magnet

Clutch Circuit"

Insufficient cooling

Go to Trouble Diagnosis Procedure for Insufficient Cooling.

ATC-93, "Insuffi-

cient Cooling"

Go to Diagnosis Procedure for Insufficient Cooling.

ATC-100, "DIAG-

NOSIS PROCE-

DURE FOR

INSUFFICIENT

COOLING"

Insufficient heating

Go to Trouble Diagnosis Procedure for Insufficient Heating.

ATC-102, "Insuffi-

cient Heating"

Noise

Go to Trouble Diagnosis Procedure for Noise.

ATC-103, "Noise"

Self-diagnosis cannot be performed.

Go to Trouble Diagnosis Procedure for Self-diagnosis.

ATC-104, "Self-

Diagnosis"

ATC-36

TROUBLE DIAGNOSIS

Memory function does not operate.

Go to Trouble Diagnosis Procedure for Memory Function.

ATC-105, "Mem-

ory Function"

ECON mode does not operate.

Go to Trouble Diagnosis Procedure for ECON (ECONOMY)
mode.

ATC-106, "ECON

(ECONOMY)

MODE"

Rear control does not operate.

Go to Trouble Diagnosis Procedure for Real Control Switch.

ATC-80, "Rear

Control Switch Cir-

cuit"

Symptom

Reference Page

TROUBLE DIAGNOSIS

ATC-37

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ATC

Component Parts and Harness Connector Location

NJS00087

ENGINE COMPARTMENT

RJIA3196E

ATC-38

TROUBLE DIAGNOSIS

PASSENGER COMPARTMENT

RJIA0209E