Nissan Pathfinder. Manual — part 882
PCS-4
< SYSTEM DESCRIPTION >
[IPDM E/R]
COMPONENT PARTS
SYSTEM DESCRIPTION
COMPONENT PARTS
Component Parts Location
INFOID:0000000009175183
1.
IPDM E/R
ALMIA0559ZZ
PCS
SYSTEM
PCS-5
< SYSTEM DESCRIPTION >
[IPDM E/R]
C
D
E
F
G
H
I
J
K
L
B
A
O
P
N
SYSTEM
RELAY CONTROL SYSTEM
RELAY CONTROL SYSTEM : System Diagram
INFOID:0000000009175184
RELAY CONTROL SYSTEM : System Description
INFOID:0000000009175185
IPDM E/R activates the internal control circuit to perform the relay ON-OFF control according to the input sig-
nals from various sensors and the request signals received from control units via CAN communication.
CAUTION:
IPDM E/R integrated relays cannot be removed.
AWMIA1451GB
PCS-6
< SYSTEM DESCRIPTION >
[IPDM E/R]
SYSTEM
POWER CONSUMPTION CONTROL SYSTEM
POWER CONSUMPTION CONTROL SYSTEM : System Diagram
INFOID:0000000009175186
POWER CONSUMPTION CONTROL SYSTEM : System Description
INFOID:0000000009175187
OUTLINE
• IPDM E/R incorporates a power consumption control function that reduces the power consumption accord-
ing to the vehicle status.
• IPDM E/R changes its status (control mode) with the sleep wake up signal received from BCM via CAN com-
munication.
Normal mode (wake-up)
- CAN communication is normally performed with other control units.
- Individual unit control by IPDM E/R is normally performed.
Low power consumption mode (sleep)
- Low power consumption control is active.
- CAN transmission is stopped.
SLEEP MODE ACTIVATION
• IPDM E/R judges that the sleep-ready conditions are fulfilled when the ignition switch is OFF and none of the
conditions below are present. Then it transmits a sleep-ready signal (ready) to BCM via CAN communica-
tion.
- Front wiper fail-safe operation
- Outputting signals to actuators
Control relay
Input/output
Transmit unit
Control part
Reference
page
Front fog lamp relay
Front fog lamp request signal
BCM (CAN)
Front fog lamp
• Headlamp low relay
• Headlamp high relay
• Low beam request signal
• High beam request signal
BCM (CAN)
• Headlamp low
• Headlamp High
Tail lamp relay
Position light request signal
BCM (CAN)
• Parking lamp
• Side marker lamp
• License plate lamp
• Tail lamp
• Front wiper relay
• Front wiper high relay
Front wiper request signal
BCM (CAN)
Front wiper
Front wiper auto stop signal
Front wiper motor
Ignition relay-1
Ignition switch ON signal
BCM (CAN)
Ignition relay-1
Vehicle speed signal
Combination meter (CAN)
Push-button ignition switch
Push-button ignition switch
A/C relay
A/C compressor request signal ECM (CAN)
A/C compressor
ALCIA0030GB
PCS
SYSTEM
PCS-7
< SYSTEM DESCRIPTION >
[IPDM E/R]
C
D
E
F
G
H
I
J
K
L
B
A
O
P
N
- Switches or relays operating
- Auto active test is starting
- Emergency OFF
- Output requests are being received from control units via CAN communication.
• IPDM E/R stops CAN communication and enters the low power consumption mode when it receives a sleep
wake up signal (sleep) from BCM and the sleep-ready conditions are fulfilled.
WAKE-UP OPERATION
• IPDM E/R changes from the low power consumption mode to the normal mode when it receives a sleep
wake-up signal (wake up) from BCM or any of the following conditions is fulfilled. In addition, it transmits a
sleep-ready signal (not-ready) to BCM via CAN communication to report the CAN communication start.
- Ignition switch ON
- An output request is received from a control unit via CAN communication.
IGNITION BATTERY SAVER LOGIC
If the ignition is ON for 30 minutes with the engine OFF, the IPDM E/R and BCM turn OFF to save the battery.
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