Nissan Frontier. Manual - part 882

 

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Nissan Frontier. Manual - part 882

 

 

HAC-82

< SYMPTOM DIAGNOSIS >

[AUTOMATIC AIR CONDITIONER]

INSUFFICIENT HEATING

8.

CHECK ENGINE COOLANT SYSTEM 

Check engine coolant temperature sensor. Refer to 

EC-658, "Component Inspection"

.

Is the inspection result normal?

YES

>> System OK.

NO

>> Repair or replace as necessary. Retest.

9.

CHECK HEATER HOSES 

Check heater hoses for proper installation.
Is the inspection result normal?

YES

>> System OK.

NO

>> 1. Back flush heater core. 

2. Drain the water from the system.   

3. Refill system with new engine coolant. Refer to 

CO-40, "Changing Engine Coolant"

4. GO TO 10 to retest. 

10.

CHECK HEATER HOSE TEMPERATURES

1. Start engine and warm it up to normal operating temperature.

2. Touch both the inlet and outlet heater hoses. The inlet hose should be hot and the outlet hose should be

warm.

Is the inspection result normal?

YES

>> System OK.

NO

>> Replace heater core. Refer to 

VTL-19, "Removal and Installation"

.

NOISE

HAC-83

< SYMPTOM DIAGNOSIS >

[AUTOMATIC AIR CONDITIONER]

C

D

E

F

G

H

J

K

L

M

A

B

HAC

N

O

P

NOISE

Component Function Check

INFOID:0000000009478314

SYMPTOM: Noise

INSPECTION FLOW

*1

HAC-6, "Operational Check"

*2

EM-14, "Checking Drive Belts"

 

(QR25DE) or 

EM-129, "Checking 

Drive Belts"

 (VQ40DE)

*3

HAC-76, "Performance Chart"

AWIIA1001GB

MEMORY FUNCTION DOES NOT OPERATE

HAC-85

< SYMPTOM DIAGNOSIS >

[AUTOMATIC AIR CONDITIONER]

C

D

E

F

G

H

J

K

L

M

A

B

HAC

N

O

P

MEMORY FUNCTION DOES NOT OPERATE

Memory Function Check

INFOID:0000000009478315

SYMPTOM: Memory function does not operate.

INSPECTION FLOW

1.

CONFIRM SYMPTOM BY PERFORMING OPERATIONAL CHECK - MEMORY FUNCTION

1. Set the temperature to 32

°C (90°F).

2. Rotate the front blower control dial (driver) to turn system OFF.

3. Turn ignition switch OFF.

4. Turn ignition switch ON.

5. Press the AUTO switch.

6. Confirm that the set temperature remains at previous temperature.

7. Press the OFF switch.
Can the symptom be duplicated?

YES

>> GO TO 3.

NO

>> GO TO 2.

2.

PERFORM COMPLETE OPERATIONAL CHECK

Perform a complete operational check and check for any symptoms. Refer to 

HAC-6, "Operational Check"

Can a symptom be duplicated?

YES

>> Refer to 

HAC-5, "How to Perform Trouble Diagnosis For Quick And Accurate Repair"

.

NO

>> System OK.

3.

CHECK FOR SERVICE BULLETINS

Check for any service bulletins.

>> GO TO 4.

4.

PERFORM SELF-DIAGNOSIS

Perform self-diagnosis to check for any codes. Refer to 

HAC-20, "Front Air Control Self-Diagnosis"

.

Are any self-diagnosis codes present?

YES

>> Refer to 

HAC-20, "Front Air Control Self-Diagnosis Code Chart"

.

NO

>> GO TO 5.

5.

CHECK POWER AND GROUND CIRCUIT

Check main power supply and ground circuit. Refer to 

HAC-59, "Front Air Control Component Function

Check"

.

Is the inspection result normal?

YES

>> GO TO 6.

NO

>> Repair or replace as necessary.

6.

RECHECK FOR SYMPTOMS 

Perform a complete operational check for any symptoms. Refer to 

HAC-6, "Operational Check"

.

Does another symptom exist?

YES

>> Refer to 

HAC-5, "How to Perform Trouble Diagnosis For Quick And Accurate Repair"

NO

>> Replace front air control. Refer to 

VTL-7, "Removal and Installation"

.

 

 

 

 

 

 

 

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