Nissan Teana J32. Instruction — part 674
POWER SUPPLY AND GROUND CIRCUIT
HAC-65
< COMPONENT DIAGNOSIS >
[WITHOUT 7 INCH DISPLAY]
C
D
E
F
G
H
J
K
L
M
A
B
HAC
N
O
P
POWER SUPPLY AND GROUND CIRCUIT
A/C AUTO AMP.
A/C AUTO AMP. : Diagnosis Procedure
INFOID:0000000003941309
1.
CHECK FUSE
Check 10A fuses [Nos. 3, 6 and 19, located in the fuse block (J/B)].
NOTE:
Refer to
PG-101, "Fuse, Connector and Terminal Arrangement"
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Replace the fuse after repairing the applicable circuit.
2.
CHECK A/C AUTO AMP. POWER SUPPLY CIRCUIT
1.
Disconnect the A/C auto amp. connector.
2.
Check voltage between A/C auto amp. harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Repair the harnesses or connectors.
3.
CHECK A/C AUTO AMP. CIRCUIT CONTINUITY
1.
Turn ignition switch OFF.
2.
Check continuity between A/C auto amp. harness connector and ground.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Repair the harnesses or connectors.
A/C CONTROL
A/C CONTROL : Diagnosis Procedure
INFOID:0000000003846370
1.
CHECK A/C CONTROL POWER SUPPLY CIRCUIT
1.
Disconnect the A/C control connector.
2.
Turn ignition switch ON.
3.
Check voltage between A/C control harness connector and ground.
(+)
(
−
)
Voltage
A/C auto amp.
—
Ignition switch position
Connector
Terminal
OFF
ACC
ON
M50
17
Ground
Approx. 0 V
Battery voltage
Battery voltage
20
Approx. 0 V
Approx. 0 V
Battery voltage
40
Battery voltage
Battery voltage
Battery voltage
A/C auto amp.
—
Continuity
Connector
Terminal
M50
19
Ground
Existed
39
(+)
(
−
)
Voltage
A/C control
—
Connector
Terminal
M95
1
Ground
Battery voltage
HAC-66
< COMPONENT DIAGNOSIS >
[WITHOUT 7 INCH DISPLAY]
POWER SUPPLY AND GROUND CIRCUIT
Is the inspection result normal?
YES
>> GO TO 2.
NO
>>
Check 10A fuse (No. 3, located in the fuse block). Refer to
PG-101, "Fuse, Connector and Ter-
.
• If fuse is OK, check harness for open circuit. Repair or replace if necessary.
• If fuse is NG, replace fuse and check for short circuit. Repair or replace if necessary.
2.
CHECK A/C CONTROL CIRCUIT CONTINUITY
1.
Turn ignition switch OFF.
2.
Check continuity between A/C control harness connector and ground.
Is the inspection result normal?
YES
>> Replace the A/C control.
NO
>> Repair the harnesses or connectors.
A/C DISPLAY
A/C DISPLAY : Diagnosis Procedure
INFOID:0000000003846371
1.
CHECK A/C DISPLAY POWER SUPPLY CIRCUIT
1.
Disconnect the A/C display connector.
2.
Turn ignition switch ON.
3.
Check voltage between A/C display harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Repair the harnesses or connectors.
2.
CHECK A/C DISPLAY CIRCUIT CONTINUITY
1.
Turn ignition switch OFF.
2.
Check continuity between A/C display harness connector and ground.
Is the inspection result normal?
YES
>> Replace the A/C display.
NO
>>
Check 10A fuse (No. 3, located in the fuse block). Refer to
PG-101, "Fuse, Connector and Ter-
.
• If fuse is OK, check harness for open circuit. Repair or replace if necessary.
• If fuse is NG, replace fuse and check for short circuit. Repair or replace if necessary.
A/C control
—
Continuity
Connector
Terminal
M95
2
Ground
Existed
(+)
(
−
)
Voltage
A/C display
—
Connector
Terminal
M16
6
Ground
Battery voltage
A/C display
—
Continuity
Connector
Terminal
M16
1
Ground
Existed
A/C AUTO AMP.
HAC-67
< COMPONENT DIAGNOSIS >
[WITHOUT 7 INCH DISPLAY]
C
D
E
F
G
H
J
K
L
M
A
B
HAC
N
O
P
A/C AUTO AMP.
Description
INFOID:0000000003940951
COMPONENT DESCRIPTION
A/C Auto Amp. (Air Conditioner Automatic Amplifier)
The A/C auto amp. (1) has a built-in microcomputer that processes
information sent from various sensors needed for air conditioner
operation. The air mix door motors, the mode door motor, the intake
door motor, the blower motor and the compressor are then con-
trolled.
When the various switches and temperature control dial are oper-
ated, data is input to the A/C auto amp. from the A/C control.
Component Function Check
INFOID:0000000003940952
1.
CHECK OPERATION
1.
Press the AUTO switch, and then check that “AUTO” is shown on the display.
2.
Operate the temperature control dial (driver side). Check that the fan speed or outlet changes. (The dis-
charge air temperature or fan speed varies depending on the ambient temperature, in-vehicle tempera-
ture, and temperature setting.)
Does it operate normally?
YES
>> INSPECTION END
NO
>> Perform trouble diagnosis for the A/C system. Refer to
Diagnosis Procedure
INFOID:0000000003940953
1.
INSPECTION BY FAIL-SAFE FUNCTION
1.
Turn the ignition switch ON.
2.
After approximately 30 seconds, check that the air conditioner is operated by the fail-safe function (the
operation display of air conditioner is not performed). Refer to
Is the fail-safe function operated?
YES
>> GO TO 3.
NO
>> GO TO 2.
2.
CHECK A/C AUTO AMP. POWER SUPPLY CIRCUIT AND GROUND
Check A/C auto amp. power supply circuit and ground circuit. Refer to
HAC-65, "A/C AUTO AMP. : Diagnosis
.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Repair or replace parts according to the inspection results.
3.
CHECK A/C CONTROL SIGNAL CIRCUIT
Check the A/C control signal circuit. Refer to
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Repair or replace parts according to the inspection results.
JPIIA0894ZZ
HAC-68
< COMPONENT DIAGNOSIS >
[WITHOUT 7 INCH DISPLAY]
BLOWER MOTOR
BLOWER MOTOR
Description
INFOID:0000000003846359
COMPONENT DESCRIPTION
Brush-less Motor
The blower motor utilizes a brush-less motor with a rotating magnet.
Quietness is improved over previous motors where the brush was
the point of contact and the coil rotated.
Blower Motor Circuit
Component Function Check
INFOID:0000000003846360
1.
CHECK OPERATION
1.
Warm up the engine.
2.
Operate the fan control dial. Check that the fan speed and indicator are switched for all fan speeds.
Does it operate normally?
YES
>> INSPECTION END
NO
>> Perform trouble diagnosis for the blower motor. Refer to
Diagnosis Procedure
INFOID:0000000003846361
1.
CHECK WITH SELF-DIAGNOSIS FUNCTION OF CONSULT-III
1.
Using CONSULT-III, perform “SELF-DIAGNOSIS RESULTS” of HVAC.
2.
Check if any DTC is displayed in the self-diagnosis results.
NOTE:
If DTC is displayed along with DTC U1000 or U1010, first diagnose the DTC U1000 or U1010. Refer to
.
Is any DTC displayed?
YES
>> Perform the diagnosis that is applicable to the sensor and actuator. Refer to
.
NO
>> GO TO 2.
2.
CHECK WITH ACTIVE TEST OF CONSULT-III
1.
Using CONSULT-III, perform “HVAC TEST” “ACTIVE TEST” of HVAC to check each output device. Refer
to
HAC-38, "CONSULT-III Function"
.
NOTE:
Perform the ACTIVE TEST after starting the engine because the compressor is operated.
ZHA152H
JSIIA0999ZZ
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст