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
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