Nissan Cube. Manual - part 578

HAC-150

< DTC/CIRCUIT DIAGNOSIS >

[MANUAL AIR CONDITIONING]

INTAKE DOOR MOTOR

Is inspection result normal?

YES

>> Replace the A/C control.

NO

>> Repair the harnesses or connectors.

4.

CHECK INTAKE DOOR MOTOR

Perform the intake door motor component inspection. Refer to 

HAC-150, "Component Inspection"

.

Is inspection result normal?

YES

>> Replace the A/C control.

NO

>> Replace the intake door motor.

Component Inspection

INFOID:0000000009951068

1.

CHECK INTAKE DOOR MOTOR 

1.

Turn the ignition switch OFF.

2.

Disconnect the intake door motor connector.

3.

Supply to the intake door motor terminal directly, confirm the motor operation by listening the sound or by
visually.

Is inspection result normal?

YES

>> INSPECTION END

NO

>> Replace the intake door motor.

Intake door motor

—

Continuity

Connector

Terminal

M54

2

Ground

Not existed

6

Terminal

Operation

(+)

(

−

)

2

6

To  REC

6

2

To  FRE

THERMO CONTROL AMPLIFIER

HAC-151

< DTC/CIRCUIT DIAGNOSIS >

[MANUAL AIR CONDITIONING]

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THERMO CONTROL AMPLIFIER

Description

INFOID:0000000009951069

COMPONENT DESCRIPTION

• Thermo control amp. (1) is composed of thermistor and amplifier.

Thermistor is installed on evaporator, and amplifier is attached to
foot duct (left).

• When the thermistor detecting temperature which passing through

evaporator is extremely low, thermo control amp. sends the thermo
control amp. OFF signal to BCM, and stops the compressor.

OPERATING RATE CONTROL

• Thermo control amp. detects the positions of air temperature control dial and MODE dial.
• Thermo control amp. corrects the stopping temperature of A/C compressor depending on the condition of A/

C operation, and prevents too much heating by turning thermo control amp. ON 

⇔

 OFF.

Component Function Check

INFOID:0000000009951070

1.

CHECK THERMO CONTROL AMP. SIGNAL

With CONSULT

1.

Turn the ignition switch ON.

2.

Select the “THERMO AMP” on “DATA MONITOR” in BCM.

3.

Check the thermo control amp. signal when the ignition switch is operated.

Is inspection result normal?

YES

>> INSPECTION END

NO

>> Refer to 

HAC-151, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000009951071

1.

CHECK FUSE

Check 10A fuse [NO. 16, located in the fuse block (J/B)].
NOTE:
Refer to 

PG-77, "Fuse, Connector and Terminal Arrangement"

.

Is inspection result normal?

YES

>> GO TO 2.

NO

>> Replace fuse after repairing the applicable circuit.

2.

CHECK THERMO CONTROL AMP. POWER SUPPLY CIRCUIT

1.

Turn the ignition switch OFF.

2.

Disconnect the thermo control amp. connector.

3.

Turn the ignition switch ON.

4.

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

JPIIA1750ZZ

Monitor item

Condition

Status

THERMO AMP

Ignition switch

ON

On

OFF

Off

HAC-152

< DTC/CIRCUIT DIAGNOSIS >

[MANUAL AIR CONDITIONING]

THERMO CONTROL AMPLIFIER

Is inspection result normal?

YES

>> GO TO 3.

NO

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

3.

CHECK CONTINUITY THERMO CONTROL AMP. GROUND CIRCUIT

1.

Turn the ignition switch OFF.

2.

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

Is inspection result normal?

YES

>> GO TO 4.

NO

>> Repair the harnesses or connectors.

4.

CHECK VOLTAGE BETWEEN THERMO CONTROL AMP. AND GROUND

1.

Turn the ignition switch ON.

2.

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

Is inspection result normal?

YES

>> Replace the thermo control amp.

NO

>> GO TO 5.

5.

CHECK CONTINUITY BETWEEN THERMO CONTROL AMP. AND BCM

1.

Turn the ignition switch OFF.

2.

Disconnect the BCM connector.

3.

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

With Intelligent Key

Without Intelligent Key

Is inspection result normal?

YES

>> GO TO 6.

NO

>> Repair the harnesses or connectors.

6.

CHECK CONTINUITY BETWEEN THERMO CONTROL AMP. AND GROUND

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

(+)

(

−

)

Voltage

(Approx.)

Thermo control amp.

—

Connector

Terminal

M44

1

Ground

Battery voltage

Thermo control amp.

—

Continuity

Connector

Terminal

M44

3

Ground

Existed

(+)

(

−

)

Voltage

(Approx.)

Thermo control amp.

—

Connector

Terminal

M44

2

Ground

12 V

Thermo control amp.

BCM

Continuity

Connector

Terminal

Connector

Terminal

M44

2

M68

26

Existed

Thermo control amp.

BCM

Continuity

Connector

Terminal

Connector

Terminal

M44

2

M65

26

Existed

THERMO CONTROL AMPLIFIER

HAC-153

< DTC/CIRCUIT DIAGNOSIS >

[MANUAL AIR CONDITIONING]

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Is inspection result normal?

YES

>> Repair the harnesses or connectors.

NO

>> INSPECTION END

Thermo control amp.

—

Continuity

Connector

Terminal

M44

2

Ground

Not existed