Nissan Maxima. Manual — part 881
PCS-4
< SYSTEM DESCRIPTION >
[IPDM E/R]
RELAY CONTROL SYSTEM
SYSTEM DESCRIPTION
RELAY CONTROL SYSTEM
System Diagram
INFOID:0000000009467089
AWMIA1323GB
PCS
RELAY CONTROL SYSTEM
PCS-5
< SYSTEM DESCRIPTION >
[IPDM E/R]
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System Description
INFOID:0000000009467090
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.
1: BCM controls the starter relay.
Control relay
Input/output
Transmit unit
Control part
Reference
page
Headlamp low relay
Low beam request signal
BCM (CAN)
Headlamp low
(xenon
type)
(halogen
type)
Headlamp high relay
High beam request signal
BCM (CAN)
Headlamp high
(xenon
type)
(halogen
type)
Front fog lamp relay (if
equipped)
Front fog light request signal
BCM (CAN)
Front fog lamp (if
equipped)
(xenon
type)
(halogen
type)
Tail lamp relay
Position light request signal
BCM (CAN)
• Parking lamp
• Side marker lamp
• License plate lamp
• Tail lamp
• Illuminations
(xenon
type)
(halogen
type)
• Front wiper relay
• Front wiper high relay
Front wiper request signal
BCM (CAN)
Front wiper
Front wiper auto stop signal
Front wiper motor
• Starter relay
1
• Starter control relay
Starter control relay signal
BCM (CAN)
Starter motor
Starter relay control signal
TCM
A/C relay
A/C compressor request sig-
nal
ECM (CAN)
A/C compressor
(magnet clutch)
(with color
display)
(with mono-
chrome dis-
play)
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
Fuel pump relay
Fuel pump request signal
ECM
Fuel level sensor unit and
fuel pump (fuel pump)
ECM relay
ECM relay control signal
ECM
ECM relay
Throttle control motor relay
Throttle control motor relay
signal
ECM
Throttle control motor re-
lay
Cooling fan relay - 1
Cooling fan request signal
ECM (CAN)
Cooling fan relay - 1
PCS-6
< SYSTEM DESCRIPTION >
[IPDM E/R]
RELAY CONTROL SYSTEM
Component Parts Location
INFOID:0000000009467091
1.
IPDM E/R E16, E17, E18, E200,
E201, F10
AWMIA1117ZZ
PCS
POWER CONTROL SYSTEM
PCS-7
< 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:0000000009467092
System Description
INFOID:0000000009467093
COOLING FAN CONTROL
IPDM E/R controls cooling fans according to the status of the cooling fan speed request signal received from
ECM via CAN communication.
GENERATOR CONTROL
IPDM E/R outputs power generation command signal (PWM signal) to the generator according to the status of
the power generation command value signal received from ECM via CAN communication. Refer to
ALCIA0028GB
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