Nissan Altima L32. Instruction — part 986
PCS-8
< FUNCTION DIAGNOSIS >
[IPDM E/R]
RELAY CONTROL SYSTEM
System Description
INFOID:0000000004202399
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.
NOTE:
BCM controls the starter relay.
Control relay
Input/output
Transmit unit
Control part
Reference page
• Headlamp low relay
• Headlamp high relay
• Low beam request signal
• High beam request signal
BCM (CAN)
• Headlamp low
• Headlamp High
Front fog lamp relay (if
equipped)
Front fog light request signal BCM (CAN)
Front fog lamp
Tail lamp relay
Position light request signal
BCM (CAN)
• Parking lamp
• License plate lamp
• Tail lamp
• Illuminations
• 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
NOTE
• Starter control relay
Starter control relay signal
BCM (CAN)
Starter motor
,
Electronic steering column
lock unit condition signal
Electronic steering col-
umn lock unit
Starter relay control signal
TCM (CVT model)
Clutch interlock switch
(M/T model)
Steering lock relay
Electronic steering column
lock relay signal
BCM (CAN)
Electronic steering
column lock unit
Electronic steering column
lock unit condition signal
Electronic steering col-
umn lock unit
CVT device (Detention
switch) signal
CVT device (Detention
switch)
A/C relay
A/C compressor request
signal
ECM (CAN)
A/C compressor
(magnet clutch)
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 pump
(VQ models)
(QR FED models)
(QR CAL models)
ECM relay
ECM relay control signal
ECM
ECM relay
(VQ models)
(QR FED models)
(QR CAL models)
Throttle contol motor re-
lay
Throttle control motor relay
signal
ECM
Throttle control motor
relay
(VQ models)
(QR FED models)
(QR CAL models)
Cooling fan relay - 1
Cooling fan request signal
ECM (CAN)
Cooling fan relay 1
(VQ models)
(QR FED models)
(QR CAL models)
PCS
RELAY CONTROL SYSTEM
PCS-9
< FUNCTION DIAGNOSIS >
[IPDM E/R]
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Component Parts Location
INFOID:0000000004202400
1.
IPDM E/R E16, E17, E18, E200,
E201, F10
ALMIA0318ZZ
PCS-10
< FUNCTION DIAGNOSIS >
[IPDM E/R]
POWER CONTROL SYSTEM
POWER CONTROL SYSTEM
System Diagram
INFOID:0000000004202401
System Description
INFOID:0000000004202402
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. Refer to
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
PCS
SIGNAL BUFFER SYSTEM
PCS-11
< FUNCTION DIAGNOSIS >
[IPDM E/R]
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SIGNAL BUFFER SYSTEM
System Diagram
INFOID:0000000004202403
System Description
INFOID:0000000004202404
• 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
• IPDM E/R receives the rear window defogger status signal from BCM via CAN communication and transmits
it to ECM via CAN communication. Refer to
.
ALCIA0029GB
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