Nissan Tiida C11. Manual — part 908

HAC-296

< ECU DIAGNOSIS >

[AUTO AIR CONDITIONER (W/NAVI)]

PTC HEATER CONTROL SYSTEM

ALIIA0142GB

PTC HEATER CONTROL SYSTEM

HAC-297

< ECU DIAGNOSIS >

[AUTO AIR CONDITIONER (W/NAVI)]

C

D

E

F

G

H

J

K

L

M

A

B

HAC

N

O

P

ALIIA0143GB

HAC-298

< SYMPTOM DIAGNOSIS >

[AUTO AIR CONDITIONER (W/NAVI)]

AIR CONDITIONER CONTROL

SYMPTOM DIAGNOSIS

AIR CONDITIONER CONTROL

Symptom Matrix Chart

INFOID:0000000001547373

SYMPTOM TABLE

Symptom

Reference Page

A/C system does not come on.

Go to Trouble Diagnosis Procedure for A/C System.

HAC-278

Air outlet does not change.

Go to Trouble Diagnosis Procedure for Mode Door Motor.

HAC-222

Mode door motor does not operate normally.

Discharge air temperature does not change.

Go to Trouble Diagnosis Procedure for Air Mix Door Motor.

HAC-226

Air mix door motor does not operate normally.

Intake door does not change.

Go to Trouble Diagnosis Procedure for Intake Door Motor.

HAC-230

Intake door motor does not operate normally.

Blower motor operation is malfunctioning.

Go to Trouble Diagnosis Procedure for Blower Motor.

HAC-234

Blower motor operation is malfunctioning un-
der out of starting fan speed control.

Magnet clutch does not engage.

Go to Trouble Diagnosis Procedure for Magnet Clutch.

HAC-239

Insufficient cooling

Go to Trouble Diagnosis Procedure for Insufficient Cooling.

HAC-299

Insufficient heating

Go to Trouble Diagnosis Procedure for Insufficient Heating.

HAC-307

Noise

Go to Trouble Diagnosis Procedure for Noise.

HAC-309

Self-diagnosis cannot be performed.

Go to Trouble Diagnosis Procedure for Self-diagnosis.

HAC-311

Memory function does not operate.

Go to Trouble Diagnosis Procedure for Memory Function.

HAC-312

INSUFFICIENT COOLING

HAC-299

< SYMPTOM DIAGNOSIS >

[AUTO AIR CONDITIONER (W/NAVI)]

C

D

E

F

G

H

J

K

L

M

A

B

HAC

N

O

P

INSUFFICIENT COOLING

Component Function Check

INFOID:0000000001547374

SYMPTOM: Insufficient cooling

INSPECTION FLOW

1.

CONFIRM SYMPTOM BY PERFORMING OPERATIONAL CHECK - TEMPERATURE DECREASE

1.

Press the AUTO switch.

2.

Turn temperature control dial counterclockwise until 18

°

C (60

°

F) is displayed.

3.

Check for cold air at discharge air outlets.

Can the symptom be duplicated?

YES

>> GO TO 3.

NO

>> GO TO 2.

2.

CHECK FOR ANY SYMPTOMS

Perform a complete operational check for any symptoms. Refer to

HAC-202, "Operational Check"

.

Does another symptom exist?

YES

>> Refer to

HAC-298, "Symptom Matrix Chart"

.

NO

>> System OK.

3.

CHECK FOR SERVICE BULLETINS

Check for any service bulletins.

>> GO TO 3.

4.

PERFORM SELF-DIAGNOSIS

Perform self-diagnosis Refer to

HAC-213, "Front Air Control Self-Diagnosis"

.

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> Refer to

HAC-218, "Front Air Control Self-Diagnosis Code Chart"

.

5.

CHECK DRIVE BELTS

Check compressor belt tension. Refer to

EM-15, "Checking"

HR16DE

EM-142, "Checking Drive Belts"

or

HR18DE or

EM-263, "Inspection and Adjustment"

K9K.

Is the inspection result normal?

OK

>> GO TO 6.

NG

>> Adjust or replace compressor belt. Refer to

XX-XX, "*****"

.

6.

CHECK AIR MIX DOOR OPERATION

Check and verify air mix door mechanism for smooth operation. Refer to

HAC-225, "Air Mix Door Motor Com-

ponent Function Check"

Does air mix door operate correctly?

YES

>> GO TO 7.

NO

>> Check air mix door motor circuit. Refer to

HAC-226, "Air Mix Door Motor Diagnosis Procedure"

.

7.

CHECK COOLING FAN MOTOR OPERATION

Check and verify cooling fan motor for smooth operation.
Does cooling fan motor operate correctly?

YES

>> GO TO 8.

NO

>> Check cooling fan motor. Refer to

CO-18, "Component (Models with A/C)"

.

8.

CHECK RECOVERY/RECYCLING EQUIPMENT BEFORE USAGE

Check recovery/recycling equipment before connecting to vehicle. Verify there is no pressure in the recovery/
recycling equipment by checking the gauges. If pressure exists, recover refrigerant from equipment lines.