Nissan Xterra. Manual — part 525
PCS
RELAY CONTROL SYSTEM
PCS-3
< SYSTEM DESCRIPTION >
[IPDM E/R]
C
D
E
F
G
H
I
J
K
L
B
A
O
P
N
System Description
INFOID:0000000009483711
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.
Control relay
Input/output
Transmit unit
Control part
Reference page
Front fog lamp relay
(if equipped)
Front fog lamp request signal
BCM (CAN)
Front fog lamps
(if equipped)
• Headlamp high relay
• Headlamp low relay
• High beam request signal
• Low beam request signal
BCM (CAN)
• Headlamp high
• Headlamp low
Tail lamp relay
Position light request signal
BCM (CAN)
• Parking lamps
• License plate lamps
• Tail lamps
• Trailer tow relay
• Illumination system
• Front wiper relay
• Front wiper high relay
Front wiper request signal
BCM (CAN)
Front wiper motor
Rear window defogger relay Rear window defogger request signal BCM (CAN)
Rear window defogger
A/C relay
A/C request signal
BCM (CAN)
ECM (CAN)
A/C compressor
Starter relay
Ignition switch START signal
TCM
Starter motor
Cooling fan relays
Cooling fan request signal
ECM (CAN)
Cooling fan relay
Heated mirror relay (if
equipped)
Heated mirror request signal
BCM (CAN)
Door mirrors (if equipped)
ECM relay
ECM relay control signal
ECM (CAN)
ECM relay
Throttle control motor relay
Throttle control motor control signal
ECM (CAN)
Throttle control motor relay
Fuel pump relay
Fuel pump request signal
ECM (CAN)
Fuel pump
Ignition relay
Ignition switch ON signal
Ignition switch Ignition relay
PCS-4
< SYSTEM DESCRIPTION >
[IPDM E/R]
RELAY CONTROL SYSTEM
Component Parts Location
INFOID:0000000009483712
1.
IPDM E/R E118, E119, E120, E121,
E122, E123, E124
AWMIA0504ZZ
PCS
POWER CONTROL SYSTEM
PCS-5
< SYSTEM DESCRIPTION >
[IPDM E/R]
C
D
E
F
G
H
I
J
K
L
B
A
O
P
N
POWER CONTROL SYSTEM
System Diagram
INFOID:0000000009483713
System Description
INFOID:0000000009483714
COOLING FAN CONTROL
IPDM E/R controls the cooling fan according to the status of the cooling fan speed request signal received
from ECM via CAN communication. Refer to
AWMIA0527GB
PCS-6
< SYSTEM DESCRIPTION >
[IPDM E/R]
SIGNAL BUFFER SYSTEM
SIGNAL BUFFER SYSTEM
System Diagram
INFOID:0000000009483715
System Description
INFOID:0000000009483716
IPDM E/R reads the status of the oil pressure switch and transmits the oil pressure switch signal to BCM via
CAN communication. Refer to
.
AWNIA0174GB
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