Nissan Versa Sedan. Manual — part 494

OPERATION INSPECTION

HAC-31

< BASIC INSPECTION >

[MANUAL AIR CONDITIONING]

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1. Turn temperature control dial to full hot position.

2. Check that warm air blows from air outlets.
Is the inspection result normal?

YES

>> INSPECTION END

NO

>> GO TO 8.

8.

CHECK SELF-DIAGNOSIS WITH CONSULT

1. Perform self-diagnosis with CONSULT.

2. Check that any DTC is detected.
Is any DTC detected?

YES

>> Perform trouble diagnosis for the detected DTC.

NO

>> Refer to

HAC-44, "Symptom Table"

and perform the appropriate diagnosis.

HAC-32

< DTC/CIRCUIT DIAGNOSIS >

[MANUAL AIR CONDITIONING]

A/C ON SIGNAL

DTC/CIRCUIT DIAGNOSIS

A/C ON SIGNAL

Component Function Check

INFOID:0000000009269793

1.

CHECK A/C ON SIGNAL

With CONSULT

1. Turn ignition switch ON.

2. Operate front blower motor.

3. Select “AIR CONDITIONER” of “BCM” using CONSULT.

4. Select “AIR COND SW” in “DATA MONITOR” mode, and check status under the following condition.

Is the inspection result normal?

YES

>> Inspection End.

NO

>> Refer to

HAC-32, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000009269794

Regarding Wiring Diagram information, refer to

HAC-20, "Wiring Diagram"

.

1.

CHECK FUSE

1. Turn ignition switch OFF.

2. Check 10A fuse (No. 21, located in fuse block (J/B)].

NOTE:

Refer to

PG-60, "Terminal Arrangement"

.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Replace the blown fuse after repairing the affected circuit.

2.

CHECK THERMO CONTROL AMP. POWER SUPPLY

1. Turn ignition switch OFF.

2. Disconnect thermo control amp. connector.

3. Turn ignition switch ON.

4. Check voltage between thermo control amp. harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair harness or connector between thermo control amp. and fuse.

3.

CHECK THERMO CONTROL AMP. GROUND CIRCUIT FOR OPEN

1. Turn ignition switch OFF.

2. Check continuity between thermo control amp. harness connector and ground.

Monitor item

Condition

Status

AIR COND SW

A/C switch

ON

On

OFF

Off

+

−

Voltage (V)

(Approx.)

Thermo control amp.

Connector

Terminal

M42

1

Ground

Battery voltage

A/C ON SIGNAL

HAC-33

< DTC/CIRCUIT DIAGNOSIS >

[MANUAL AIR CONDITIONING]

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Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Repair harness or connector.

4.

CHECK A/C ON SIGNAL

1. Turn ignition switch ON.

2. Check output waveform between thermo control amp. harness connector and ground with using oscillo-

scope.

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> GO TO 6.

5.

CHECK FRONT AIR CONTROL

1. Turn ignition switch OFF.

2. Check front air control. Refer to

HAC-34, "Component Inspection"

.

Is the inspection result normal?

YES

>> Replace thermo control amp. Refer to

HAC-50, "Removal and Installation"

.

NO

>> Replace front air control. Refer to

HAC-48, "Removal and Installation"

.

6.

CHECK A/C ON SIGNAL CIRCUIT FOR OPEN

1. Turn ignition switch OFF.

2. Disconnect BCM and front air control connector.

3. Check continuity between thermo control amp. harness connector and BCM harness connector.

4. Check continuity between front air control harness connector and BCM harness connector.

Is the inspection result normal?

YES

>> Replace BCM. Refer to

BCS-69, "Removal and Installation"

or

BCS-122, "Removal and Installa-

tion"

.

Thermo control amp.

-

Continuity

Connector

Terminal

M42

2

Ground

Yes

+

−

Output waveform

Thermo control amp.

Connector

Terminal

M42

3

Ground

JPMIA0012GB

Thermo control amp.

BCM

Continuity

Connector

Terminal

Connector

Terminal

M42

3

M18 (without Intelligent Key system)

26

Yes

M97 (with Intelligent Key system)

Front air control

BCM

Continuity

Connector

Terminal

Connector

Terminal

M33

13

M18 (without Intelligent Key system)

27

Yes

M97 (with Intelligent Key system)

HAC-34

< DTC/CIRCUIT DIAGNOSIS >

[MANUAL AIR CONDITIONING]

A/C ON SIGNAL

NO

>> Repair harness or connector.

Component Inspection

INFOID:0000000009269795

1.

CHECK A/C CONTROL

Check continuity front air control terminals.

Is the inspection result normal?

YES

>> Inspection End.

NO

>> Replace front air control. Refer to

HAC-48, "Removal and Installation"

.

Terminal

Condition

Continuity

13

6

A/C switch: ON
Fan control dial: Except OFF position

Yes