Nissan Teana J32. Manual — part 676
MAGNET CLUTCH
HAC-73
< COMPONENT DIAGNOSIS >
[WITHOUT 7 INCH DISPLAY]
C
D
E
F
G
H
J
K
L
M
A
B
HAC
N
O
P
5.
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 6.
6.
CHECK A/C AUTO AMP. INPUT SIGNAL
Using CONSULT-III, check “On/Off” of “AIR COND SIG” and “HEATER FAN SW” in “DATA MONITOR” of
HVAC. Refer to
HAC-38, "CONSULT-III Function"
.
Is the inspection result normal?
YES
>> GO TO 7.
NO
>> Replace A/C auto amp.
7.
CHECK REFRIGERANT PRESSURE SENSOR
Check refrigerant pressure sensor. Refer to
.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Repair or replace malfunctioning parts.
A/C SWITCH ON
: AIR COND SIG On
A/C SWITCH OFF
: AIR COND SIG Off
FAN CONTROL DIAL ON
: HEATER FAN SW On
FAN CONTROL DIAL OFF
: HEATER FAN SW Off
HAC-74
< COMPONENT DIAGNOSIS >
[WITHOUT 7 INCH DISPLAY]
A/C CONTROL SIGNAL CIRCUIT
A/C CONTROL SIGNAL CIRCUIT
Diagnosis Procedure
INFOID:0000000003846366
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 TX (A/C CONTROL
→
A/C AUTO AMP.) CIRCUIT CONTINUITY
1.
Disconnect the A/C control and the A/C auto amp. connector.
2.
Check continuity between A/C control harness connector and A/C auto amp. harness connector.
3.
Check continuity between A/C control harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Repair harness or connector.
3.
CHECK RX (A/C AUTO AMP.
→
A/C CONTROL) CIRCUIT CONTINUITY
1.
Disconnect the A/C control and the A/C auto amp. connector.
2.
Check continuity between A/C control harness connector and A/C auto amp. harness connector.
3.
Check continuity between A/C control harness connector and ground.
Is the inspection result normal?
YES
>> Perform trouble diagnosis for the A/C control. Refer to
HAC-65, "A/C CONTROL : Diagnosis Pro-
NO
>> Repair harness or connector.
A/C control
A/C auto amp.
Continuity
Connector
Terminal
Connector
Terminal
M95
4
M50
7
Existed
A/C control
—
Continuity
Connector
Terminal
M95
4
Ground
Not existed
A/C control
A/C auto amp.
Continuity
Connector
Terminal
Connector
Terminal
M95
3
M50
6
Existed
A/C control
—
Continuity
Connector
Terminal
M95
3
Ground
Not existed
A/C AUTO AMP.
HAC-75
< ECU DIAGNOSIS >
[WITHOUT 7 INCH DISPLAY]
C
D
E
F
G
H
J
K
L
M
A
B
HAC
N
O
P
ECU DIAGNOSIS
A/C AUTO AMP.
Reference Value
INFOID:0000000003846375
VALUES ON THE DIAGNOSIS TOOL
CONSULT-III MONITOR ITEM
TERMINAL LAYOUT
PHYSICAL VALUES
Monitor item
Condition
Value/Status
COMP REQ SIG
Engine: Run at idle after
warming up
A/C switch: ON
(Compressor operation sta-
tus)
On
A/C switch: OFF
Off
FAN REQ SIG
Engine: Run at idle after
warming up
Blower fan: ON
On
Blower fan: OFF
Off
AMB TEMP SEN
Ignition switch ON
—
−
30 - 55
°
C (
−
22 - 131
°
F)
IN-VEH TEMP
Ignition switch ON
—
−
30 - 55
°
C (
−
22 - 131
°
F)
INT TEMP SEN
Ignition switch ON
—
−
30 - 55
°
C (
−
22 - 131
°
F)
SUNLOAD SEN
Ignition switch ON
—
0 - 1045 W/m
2
(0 - 900 kcal/m
2
·h)
AMB SEN CAL
Ignition switch ON
—
−
30 - 55
°
C (
−
22 - 131
°
F)
IN-VEH CAL
Ignition switch ON
—
−
30 - 55
°
C (
−
22 - 131
°
F)
INT TEMP CAL
Ignition switch ON
—
−
30 - 55
°
C (
−
22 - 131
°
F)
SUNL SEN CAL
Ignition switch ON
—
0 - 1045 W/m
2
(0 - 900 kcal/m
2
·h)
FAN DUTY
Engine: Run at idle after
warming up
Blower fan: ON
21 - 91%
Blower fan: OFF
0%
XM
Ignition switch ON
—
−
100 - 150
°
ENG COOL TEMP
Ignition switch ON
—
Values according to coolant
temperature
VEHICLE SPEED
Driving
—
Equivalent to speedometer
reading
JSIIA1205ZZ
HAC-76
< ECU DIAGNOSIS >
[WITHOUT 7 INCH DISPLAY]
A/C AUTO AMP.
Terminal No.
(Wire color)
Description
Condition
Value
(Approx.)
+
−
Signal name
Input/
Output
6
(L)
Ground
TX (AMP > SW·DISP)
Input
—
—
7
(P)
Ground
RX (SW > AMP)
Output
—
—
10
(L/R)
Ground
LAN signal
Input/
Output
—
11
(L/W)
Ground
Power supply for each door
motor
Input
Ignition switch ON
Battery voltage
15
(O)
Ground
Sunload sensor signal
Input
—
—
16
(R/G)
Ground
Intake sensor signal
Input
—
—
17
(V/W)
Ground
ACC Power supply
—
Ignition switch ACC
Battery voltage
19
(B)
Ground
Ground
—
Ignition switch ON
0 V
20
(G/W)
Ground
IGN Power supply
—
Ignition switch ON
Battery voltage
26
(GR)
Ground
Rear window defogger feed-
back signal
Input
Rear window defogger switch:
OFF
0 V
Rear window defogger switch:
ON
12 V
27
(GR/W)
Ground
Rear window defogger ON
signal
Output
—
12 V
When rear window defogger
switch is pushed.
0 V
32
(L/Y)
Ground
Blower motor control signal
Output
• Ignition switch ON
• Blower speed: 1st speed
(manual)
34
(P)
Ground
A/C auto amp. connection
recognition signal
Output
Ignition switch ON
5V
35
(O/B)
Ground
Ambient sensor signal
Input
—
—
36
(LG)
Ground
In-vehicle sensor signal
Input
—
—
37
(B/Y)
Ground
Sensor ground
—
Ignition switch ON
0 V
39
(B)
Ground
Ground
—
Ignition switch ON
0 V
40
(Y/R)
Ground
BATT Power supply
—
Ignition switch OFF
Battery voltage
SJIA1453J
JSIIA0096ZZ
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