Nissan Qashqai (2007-2010). Manual — part 941

HAC-124

< PRECAUTION >

[AUTOMATIC AIR CONDITIONER]

FLUORESCENT LEAK DETECTOR

FLUORESCENT LEAK DETECTOR

General Precautions

INFOID:0000000001116723

CAUTION:

• The A/C system contains a fluorescent leak detection dye used for locating refrigerant leaks. An

ultraviolet (UV) lamp is required to illuminate the dye when inspecting for leaks.

• Always wear fluorescence enhancing UV safety goggles to protect your eyes and enhance the visi-

bility of the fluorescent dye.

• The fluorescent dye leak detector is not a replacement for an electrical leak detector (SST: J-41995).

The fluorescent dye leak detector should be used in conjunction with an electrical leak detector
(SST: J-41995) to pin-point refrigerant leaks.

• For the purpose of safety and customer’s satisfaction, read and follow all manufacture’s operating

manuals and precautions prior to performing the work.

• A compressor shaft seal should not necessarily be repaired because of dye seepage. The compres-

sor shaft seal should only be repaired after confirming the leak with an electrical leak detector (SST:
J-41995).

• Always remove any remaining dye from the leak area after repairs are completed to avoid a misdiag-

nosis during a future service.

• Never allow dye to come into contact with painted body panels or interior components. If dye is

spilled, clean immediately with the approved dye cleaner. Fluorescent dye left on a surface for an
extended period of time cannot be removed.

• Never spray the fluorescent dye cleaning agent on hot surfaces (engine exhaust manifold, etc.).
• Never use more than one refrigerant dye bottle (1/4 ounce /7.4 cc) per A/C system.
• Leak detection dyes for HFC-134a (R-134a) and CFC-12 (R-12) A/C systems are different. Never use

HFC-134a (R-134a) leak detection dye in CFC-12 (R-12) A/C system, or CFC-12 (R-12) leak detection
dye in HFC-134a (R-134a) A/C system, or A/C system damage may result.

• The fluorescent properties of the dye will remain for three years or a little over unless a compressor

malfunction occurs.

IDENTIFICATION

NOTE:
Vehicles with factory installed fluorescent dye have a green label.
Vehicles without factory installed fluorescent dye have a blue label.

IDENTIFICATION LABEL FOR VEHICLE

Vehicles with factory installed fluorescent dye have the identification label on the front side of hood.

DIAGNOSIS AND REPAIR WORKFLOW

HAC-125

< BASIC INSPECTION >

[MANUAL AIR CONDITIONER]

C

D

E

F

G

H

J

K

L

M

A

B

HAC

N

O

P

BASIC INSPECTION

DIAGNOSIS AND REPAIR WORKFLOW

Work Flow

INFOID:0000000001069925

DETAILED FLOW

1.

LISTEN TO CUSTOMER COMPLAINT

Listen to customer complaint. (Get detailed information about the conditions and environment when the symp-
tom occurs.)

>> GO TO 2.

2.

VERIFY THE SYMPTOM WITH OPERATIONAL CHECK

Verify the symptom with operational check. Refer to

HAC-126, "Description & Inspection"

.

>> GO TO 3.

3.

GO TO APPROPRIATE TROUBLE DIAGNOSIS

Go to appropriate trouble diagnosis (Refer to

HAC-187, "Diagnosis Chart By Symptom"

below).

>> GO TO 4.

4.

REPAIR OR REPLACE

Repair or replace the specific parts

>> GO TO 5.

5.

FINAL CHECK

Final check.
Is the inspection result normal?

YES

>> CHECK OUT

NO

>> GO TO 3.

HAC-126

< BASIC INSPECTION >

[MANUAL AIR CONDITIONER]

INSPECTION AND ADJUSTMENT

INSPECTION AND ADJUSTMENT

Description & Inspection

INFOID:0000000001069926

DESCRIPTION

The purpose of the operational check is to check if the individual system operates properly.

INSPECTION PROCEDURE

Blower

1.

Turn fan control dial to 1-speed. Blower should operate on low speed.

2.

Then fan control dial to 2-speed, and continue checking blower speed until all speeds are checked.

3.

Leave blower on max. speed.

If NG, go to trouble diagnosis procedure for

HAC-153, "Diagnosis Procedure"

.

If OK, continue the check.

Discharge Air (Mode control dial)

1.

Turn mode control dial to each position.

2.

Confirm that discharge air comes out according to the air distribution table. Refer to

HAC-133, "System

Description"

.

If NG, go to mode door cable adjustment. Refer to

VTL-65, "Adjustment"

.

If OK, continue the check.

Discharge Air (High-level ventilator switch)

1.

Press high-level ventilator switch. High-level ventilator switch indicator should illuminate.

2.

Press high-level ventilator switch again. High-level ventilator indicator should not illuminate.

3.

Confirm that discharge air comes out.

If NG, go to trouble diagnosis procedure for

HAC-147, "Diagnosis Procedure"

.

If OK, continue the check.

Intake Air

1.

Press REC switch. Recirculation indicator should illuminate.

2.

Press REC switch again. Recirculation indicator should not illuminate.

3.

Listen for intake door position change. (Slight change of blower sound can be heard.)

If NG, go to trouble diagnosis procedure for

HAC-150, "Diagnosis Procedure"

.

If OK, continue the check.

Temperature Decrease

1.

Turn temperature control dial counterclockwise until full cold position.

2.

Check for cold air at discharge air outlets.

Conditions

: Engine running at normal operating temperature

JSIIA0311GB

INSPECTION AND ADJUSTMENT

HAC-127

< BASIC INSPECTION >

[MANUAL AIR CONDITIONER]

C

D

E

F

G

H

J

K

L

M

A

B

HAC

N

O

P

If NG, go to trouble diagnosis procedure for

HAC-188, "Inspection procedure"

.

If OK, continue the check.

Temperature Increase

1.

Turn temperature control dial clockwise until full hot position.

2.

Check for hot air at discharge air outlets.

If NG, go to trouble diagnosis procedure for

HAC-189, "Inspection procedure"

.

If OK, continue the check.

A/C Switch

1.

Turn fan control dial to the desired (1 to 4 speed) position.

2.

Press A/C switch.

3.

A/C switch indicator will turn ON.
• Confirm that the compressor clutch engages (sound or visual inspection).