Nissan Quest E52. Instruction — part 731
HAC-54
< SYSTEM DESCRIPTION >
[AUTOMATIC AIR CONDITIONING]
DIAGNOSIS SYSTEM (BCM)
NOTE:
*: Refer to the following for details of the power supply position.
• OFF (OFF, LOCK): Ignition switch OFF
• ACC: Ignition switch ACC
• IGN: Ignition switch ON with engine stopped
• RUN: Ignition switch ON with engine running
• CRANK: At engine cranking
Power supply position shifts to “OFF (LOCK)” from “OFF (OFF)”, when ignition switch is in the OFF position, shift position is in the P
position, and any of the following conditions are met.
• Closing door
• Opening door
• Door is locked using door request switch
• Door is locked using Intelligent Key
The power supply position shifts to “ACC” when the push-button ignition switch (push switch) is pushed at “OFF (LOCK)”.
AIR CONDITIONER
CONSULT screen item
Indication/Unit
Description
Vehicle Speed
km/h
Vehicle speed of the moment a particular DTC is detected
Odo/Trip Meter
km
Total mileage (Odometer value) of the moment a particular DTC is detected
Vehicle Condition
SLEEP>LOCK
Power position status of
the moment a particular
DTC is detected*
While turning BCM status from low power consumption mode to
normal mode [Power supply position is OFF (LOCK)]
SLEEP>OFF
While turning BCM status from low power consumption mode to
normal mode [Power supply position is OFF (OFF)]
LOCK>ACC
While turning power supply position from OFF (LOCK) to ACC
ACC>ON
While turning power supply position from ACC to ON
RUN>ACC
While turning power supply position from RUN to ACC (Except
emergency stop operation)
CRANK>RUN
While turning power supply position from CRANK to RUN
RUN>URGENT
While turning power supply position from RUN to ACC (Emergen-
cy stop operation)
ACC>OFF
While turning power supply position from ACC to OFF (OFF)
OFF>LOCK
While turning power supply position from OFF (OFF) to OFF
(LOCK)
OFF>ACC
While turning power supply position from OFF (OFF) to ACC
ON>CRANK
While turning power supply position from ON to CRANK
OFF>SLEEP
While turning BCM status from normal mode [Power supply posi-
tion is OFF (OFF)] to low power consumption mode
LOCK>SLEEP
While turning BCM status from normal mode [Power supply posi-
tion is OFF (LOCK)] to low power consumption mode
LOCK
Power supply position is OFF (LOCK)
OFF
Power supply position is OFF (OFF)
ACC
Power supply position is ACC
ON
Power supply position is ON
ENGINE RUN
Power supply position is RUN
CRANKING
Power supply position is CRANK
IGN Counter
0 - 39
The number of times that ignition switch is turned ON after DTC is detected
• The number is 0 when a malfunction is detected now.
• The number increases like 1
→
2
→
3...38
→
39 after returning to the normal condition
whenever ignition switch OFF
→
ON.
• The number is fixed to 39 until the self-diagnosis results are erased if it is over 39.
DIAGNOSIS SYSTEM (BCM)
HAC-55
< SYSTEM DESCRIPTION >
[AUTOMATIC AIR CONDITIONING]
C
D
E
F
G
H
J
K
L
M
A
B
HAC
N
O
P
AIR CONDITIONER : CONSULT Function (BCM - AIR CONDITIONER) (Auto A/C)
INFOID:0000000009652532
DATA MONITOR
NOTE:
The following table includes information (items) inapplicable to this vehicle. For information (items) applicable
to this vehicle, refer to CONSULT display items.
Display Item List
Monitor Item [Unit]
Contents
FAN ON SIG
[On/Off]
Displays the status of blower fan ON signal received from A/C auto amp.
AIR COND SW
[On/Off]
Displays the status of A/C ON signal received from A/C auto amp.
HAC-56
< ECU DIAGNOSIS INFORMATION >
[AUTOMATIC AIR CONDITIONING]
A/C AUTO AMP.
ECU DIAGNOSIS INFORMATION
A/C AUTO AMP.
Reference Value
INFOID:0000000009652533
TERMINAL LAYOUT
PHYSICAL VALUES
JMIIA0690ZZ
Terminal No.
(Wire color)
Description
Condition
Value
+
−
Signal name
Input/
Output
1
(O)
Ground
Battery power supply
—
Ignition switch OFF
11 – 14 V
2
(G)
Ground
Ignition power supply
—
Ignition switch ON
11 – 14 V
4
(SB)
Ground
Door motor power supply
Output
Ignition switch ON
9.5 – 13.5 V
5
(BR)
Ground
LAN signal
Input/
Output
Ignition switch ON
9
(V)
Ground
ACC power supply
—
Ignition switch ON
11 – 14 V
10
(W)
Ground
Front blower motor control
signal
Output
• Ignition switch ON
• Front fan speed: 1st speed
(instruction)
12
(BR)
Ground
Blower fan ON signal
Output
• Ignition switch ON
• Front blower motor: OFF
11 – 14 V
• Ignition switch ON
• Front blower motor: ON
0 – 0.5 V
SJIA1453J
JSIIA0096ZZ
A/C AUTO AMP.
HAC-57
< ECU DIAGNOSIS INFORMATION >
[AUTOMATIC AIR CONDITIONING]
C
D
E
F
G
H
J
K
L
M
A
B
HAC
N
O
P
13
(O)
Ground
A/C ON signal
Output
• Ignition switch ON
• A/C switch: OFF (A/C indica-
tor: OFF)
• Ignition switch ON
• A/C switch: ON (A/C indica-
tor: ON)
0 – 0.5 V
15
(GR)
Ground
Ionizer ON/OFF control sig-
nal
Output
• Ignition switch ON
• Front blower motor: OFF
9.5 – 13.5 V
• Ignition switch ON
• Front blower motor: ON
0 – 0.5 V
17
(L)
Ground
Engine coolant temperature
signal
Input
• Ignition switch ON
• Engine idling
• Engine coolant temperature:
Below 56
°
C (133
°
F)
• Ignition switch ON
• Engine idling
• Engine coolant temperature:
Between 56 – 105
°
C (133 –
221
°
F)
• Ignition switch ON
• Engine idling
• Engine coolant temperature:
Above 105
°
C (221
°
F)
18
(L)
Ground
Sunload sensor signal
Input
Ignition switch ON
Terminal No.
(Wire color)
Description
Condition
Value
+
−
Signal name
Input/
Output
PKIB4960J
JMIIA1756JP
JMIIA1757JP
JMIIA1758JP
JMIIA1755ZZ
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