NISSAN TEANA 2008 Service Manual

MAGNET CLUTCH
HAC-73
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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 HAC-
42, "DTC Logic" or HAC-43, "DTC Logic".
Is any DTC displayed?
YES >> Perform the diagnosis that is applicable to the sensor and actuator. Refer to HAC-85, "DTC
Index".
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 EC-348, "
Diagnosis Procedure".
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 ProcedureINFOID: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 HAC-
42, "DTC Logic" or HAC-43, "DTC Logic".
Is any DTC displayed?
YES >> Perform the diagnosis that is applicable to the sensor and actuator. Refer to HAC-85, "DTC
Index".
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-
cedure".
NO >> Repair harness or connector.
A/C control A/C auto amp.
Continuity
Connector Terminal Connector Terminal
M954M507 Existed
A/C control
—Continuity
Connector Terminal
M95 4 Ground Not existed
A/C control A/C auto amp.
Continuity
Connector Terminal Connector Terminal
M953M506 Existed
A/C control
—Continuity
Connector Terminal
M95 3 Ground Not existed

A/C AUTO AMP.
HAC-75
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ECU DIAGNOSIS
A/C AUTO AMP.
Reference ValueINFOID:0000000003846375
VALUES ON THE DIAGNOSIS TOOL
CONSULT-III MONITOR ITEM
TERMINAL LAYOUT
PHYSICAL VALUES
Monitor item Condition Value/Status
COMP REQ SIGEngine: Run at idle after
warming up A/C switch: ON
(Compressor operation sta-
tus) On
A/C switch: OFF Off
FAN REQ SIGEngine: 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/m2·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/m2·h)
FAN DUTYEngine: 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.
Te r m i n a l N o .
(Wire color)Description
ConditionVa l u e
(Approx.)
+−Signal nameInput/
Output
6
(L)Ground TX (AMP > SW·DISP) Input — —
7
(P)Ground RX (SW > AMP) Output — —
10
(L/R)Ground LAN signalInput/
Output—
11
(L/W)GroundPower supply for each door
motorInput 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)GroundRear window defogger feed-
back signalInputRear window defogger switch:
OFF0 V
Rear window defogger switch:
ON12 V
27
(GR/W)GroundRear window defogger ON
signalOutput—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)GroundA/C auto amp. connection
recognition signalOutput 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

A/C AUTO AMP.
HAC-77
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Wiring Diagram - AIR CONDITIONER CONTROL SYSTEM -INFOID:0000000003846376
JCIWM0211GB

HAC-78
< ECU DIAGNOSIS >[WITHOUT 7 INCH DISPLAY]
A/C AUTO AMP.
JCIWM0212GB

A/C AUTO AMP.
HAC-79
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JCIWM0213GB

HAC-80
< ECU DIAGNOSIS >[WITHOUT 7 INCH DISPLAY]
A/C AUTO AMP.
JCIWM0214GB

A/C AUTO AMP.
HAC-81
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JCIWM0215GB

HAC-82
< ECU DIAGNOSIS >[WITHOUT 7 INCH DISPLAY]
A/C AUTO AMP.
JCIWM0216GB