relay NISSAN TIIDA 2007 Service Repair Manual

PCS-20
< ECU DIAGNOSIS >[IPDM E/R]
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
Te r m i n a lWire
colorSignal nameSignal
input/
outputMeasuring condition
Reference value
(Approx.) Ignition
switchOperation or condition
1 R Battery power supply Input OFF — Battery voltage
2 G Battery power supply Input OFF — Battery voltage
3 Y ECM Relay Output —Ignition switch ON or START Battery voltage
Ignition switch OFF or ACC 0V
4 G ECM relay Output —Ignition switch ON or START Battery voltage
Ignition switch OFF or ACC 0V
6GRDaytime light relay
controlInput ON Daytime light system active. Less than battery voltage
Daytime light system inactive. Battery voltage
7 G ECM relay control Input —Ignition switch ON or START 0V
Ignition switch OFF or ACC Battery voltage
8GThrottle control motor
relayOutput —Ignition switch ON or START Battery voltage
Ignition switch OFF or ACC 0V
11 W A/C compressor OutputON or
STARTA/C switch ON or defrost A/C
switchBattery voltage
A/C switch OFF or defrost A/C
switch0V
12 OIgnition switch sup-
plied powerInput —OFF or ACC 0V
ON or START Battery voltage
14BR
(M/T)
R
(A/T)Fuse 49 Output —Ignition switch ON or START Battery voltage
Ignition switch OFF or ACC 0V
15 V Fuse 50 Output —Ignition switch ON or START Battery voltage
Ignition switch OFF or ACC 0V
16 SB Fuse 51 Output —Ignition switch ON or START Battery voltage
Ignition switch OFF or ACC 0V
19 R Starter motor Output START — Battery voltage
20L
(with
A/C)
LG
(with-
out A/
C)Cooling fan relay-1 Output —Conditions correct for cooling
fan low operation.Battery voltage
Conditions not correct for
cooling fan low operation.0V
21 WIgnition switch START
signalInput START — Battery voltage
22 G Battery power supply Input — — Battery voltage
23 L Cooling fan relay-2 Input —Conditions correct for cooling
fan high operationBattery voltage
Conditions not correct for
cooling fan high operation0V
24 Y Cooling fan relay-3 Output —Conditions correct for cooling
fan high operationBattery voltage
Conditions not correct for
cooling fan high operation0V
27 BR
Tail lamp relay (park-
ing lamps)Output — Lighting switch in 2nd position Battery voltage

PCS
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
PCS-21
< ECU DIAGNOSIS >[IPDM E/R]
C
D
E
F
G
H
I
J
K
L B A
O
P N
29 PTail lamp relay (park-
ing lamps)Output — Lighting switch in 2nd position Battery voltage
30 R Fuse 54 Output —Ignition switch ON or START Battery voltage
Ignition switch OFF or ACC 0V
31 O Fuse 55 Output —Ignition switch ON or START Battery voltage
Ignition switch OFF or ACC 0V
32 LWiper high speed sig-
nalOutputON or
STARTWiper switchOFF, LO, INT 0V
HI Battery voltage
33 YWiper low speed sig-
nalOutputON or
STARTWiper switchOFF 0V
LO or INT Battery voltage
35 BRStarter relay (inhibit
switch)InputON or
STARTSelector lever in "P" or "N"
(CVT or A/T) or clutch pedal
depressed (M/T)Battery voltage
Selector lever any other posi-
tion (CVT or A/T) or clutch
pedal released (M/T)0V
36 BR Fuel pump relay Output —Ignition switch ON or START Battery voltage
Ignition switch OFF or ACC 0V
37 G Oil pressure switch InputON or
STARTEngine running and oil pres-
sure within specificationBattery voltage
Engine not running or oil pres-
sure below specification0V
38 R Wiper auto stop signal InputON or
STARTWipers not in park position Battery voltage
Wipers in park position 0V
39 B Ground Input — — 0V
40 P CAN-L — ON — —
41 L CAN-H — ON — —
46 YThrottle control motor
relay controlInput —Ignition switch ON or START 0V
Ignition switch OFF or ACC Battery voltage
47 GRFuel pump relay con-
trolInput —Ignition switch ON or START 0V
Ignition switch OFF or ACC Battery voltage
50 V Front fog lamp (LH)Output ON or
STARTLighting
switch must
be in the 2ND
position
(LOW beam
is ON) and
the front fog
lamp switchOFF 0V
ON Battery voltage
51 W Front fog lamp (RH) OutputON or
STARTLighting
switch must
be in the 2ND
position
(LOW beam
is ON) and
the front fog
lamp switchOFF 0V
ON Battery voltage
52 LLH Low beam head-
lampOutput — Lighting switch in 2nd position Battery voltage Te r m i n a lWire
colorSignal name
Signal
input/
outputMeasuring condition
Reference value
(Approx.) Ignition
switchOperation or condition

PCS-22
< ECU DIAGNOSIS >[IPDM E/R]
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
54 PRH Low beam head-
lampOutput — Lighting switch in 2nd position Battery voltage
55 GLH High beam head-
lampOutput —Lighting switch in 2nd position
and placed in HIGH or PASS
positionBattery voltage
56 YRH High beam head-
lampOutput —Lighting switch in 2nd position
and placed in HIGH or PASS
positionBattery voltage
59 B Ground Input — — 0V
60 RRear window defogger
relayOutputON or
STARTRear defogger Switch ON Battery voltage
Rear defogger Switch OFF 0V Te r m i n a lWire
colorSignal nameSignal
input/
outputMeasuring condition
Reference value
(Approx.) Ignition
switchOperation or condition

PCS
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
PCS-27
< ECU DIAGNOSIS >[IPDM E/R]
C
D
E
F
G
H
I
J
K
L B A
O
P N If No CAN Communication Is Available With BCM
IGNITION RELAY MALFUNCTION DETECTION FUNCTION
 IPDM E/R monitors the voltage at the contact circuit and excitation coil circuit of the ignition relay inside it.
 IPDM E/R judges the ignition relay error if the voltage differs between the contact circuit and the excitation
coil circuit.
 If the ignition relay cannot turn OFF due to contact seizure, it activates the tail lamp relay for 10 minutes to
alert the user to the ignition relay malfunction when the ignition switch is turned OFF.
NOTE:
The tail lamp turns OFF when the ignition switch is turned ON.
FRONT WIPER CONTROL
IPDM E/R detects front wiper stop position by a front wiper auto stop signal.
When a front wiper auto stop signal is in the conditions listed below, IPDM E/R stops power supply to wiper
after repeating a front wiper 10 second activation and 20 second stop five times.
NOTE:
This operation status can be confirmed on the IPDM E/R “DATA MONITOR” that displays “Block” for the item
“WIP PROT” while the wiper is stopped.
STARTER MOTOR PROTECTION FUNCTION
IPDM E/R turns OFF the starter control relay to protect the starter motor when the starter control relay remains
active for 90 seconds.
Control part Fail-safe in operation
Cooling fan Turns ON the cooling fan relay when the ignition switch is turned ON
 Turns OFF the cooling fan relay when the ignition switch is turned OFF
Control part Fail-safe in operation
Headlamp Turns ON the headlamp low relay when the ignition switch is turned ON
 Turns OFF the headlamp low relay when the ignition switch is turned OFF
 Headlamp high relay OFF
Parking lamps
 License plate lamps
 Tail lamps Turns ON the tail lamp relay when the ignition switch is turned ON
 Turns OFF the tail lamp relay when the ignition switch is turned OFF
Front wiper The status just before activation of fail-safe control is maintained until the ignition
switch is turned OFF while the front wiper is operating at LO or HI speed.
 The wiper is operated at LO speed until the ignition switch is turned OFF if the fail-
safe control is activated while the front wiper is set in the INT mode and the front wiper
motor is operating.
Rear window defogger Rear window defogger relay OFF
A/C compressor A/C relay OFF
Front fog lamps Front fog lamp relay OFF
Ignition switch Ignition relay Tail lamp relay
ON ON —
OFF OFF —
Ignition switch Front wiper switch Auto stop signal
ONOFFFront wiper stop position signal cannot be
input 10 seconds.
ON The signal does not change for 10 seconds.

PCS-34
< FUNCTION DIAGNOSIS >[POWER DISTRIBUTION SYSTEM]
POWER DISTRIBUTION SYSTEM
FUNCTION DIAGNOSIS
POWER DISTRIBUTION SYSTEM
System DescriptionINFOID:0000000001697604
INPUT/OUTPUT SIGNAL CHART
SYSTEM DESCRIPTION
 PDS (POWER DISTRIBUTION SYSTEM) is the system that BCM controls with the operation of the ignition
switch and performs the power distribution to each power circuit.
 If equipped with Intelligent Key, the ignition switch can be operated when Intelligent Key is in the detection
area of the interior antenna.
 The ignition switch operation is input to BCM as a signal. BCM changes the power supply position according
to the status and operates the ignition relay (inside IPDM E/R) to supply power to each power circuit.
Component Parts LocationINFOID:0000000001697605
Component DescriptionINFOID:0000000001697606
Switch Input Signal to BCM BCM system Actuator
Ignition switch Ignition switch
Power distribution system Ignition relay (IPDM E/R)
 ACC relay
 Blower relay A/T device P range
PNP switch N, P range
1. IPDM E/R (contains ignition relay)
E42, E43, E44, E45, E46, E47, E482. BCM (view with instrument panel re-
moved) M18, M19, M20
ALMIA0315ZZ
BCM Reference
IPDM E/RPCS-4
Ignition relay (in IPDM E/R)PCS-4
Park/neutral position switchTM-31

SEC-8
< FUNCTION DIAGNOSIS >[WITH INTELLIGENT KEY SYSTEM]
INTELLIGENT KEY SYSTEM/ENGINE START FUNCTION
FUNCTION DIAGNOSIS
INTELLIGENT KEY SYSTEM/ENGINE START FUNCTION
System DiagramINFOID:0000000001404034
System DescriptionINFOID:0000000001404035
INPUT/OUTPUT SIGNAL CHART
Intelligent Key Unit
IPDM E/R
BCM
SYSTEM DESCRIPTION
 The engine start function of Intelligent Key system is a system that makes it possible to start and stop the
engine without using the key. It verifies the electronic ID using two-way communications when pressing the
ignition knob switch while carrying the Intelligent Key, which operates based on the results of electronic ID
verification for Intelligent Key using two-way communications between the Intelligent Key and the vehicle.
NOTE:
The driver should carry the Intelligent Key at all times.
Switch/Input signalInput signal to
Intelligent Key unit Intelligent Key unit
functionActuator/Output signal
Key switchMechanical key
(insert/remove)
Engine start function KEY warning lamp/buzzer
 Steering lock unit
 Starter relay request (to IPDM E/
R)
 Inside key antenna
(Instrument center, console, rear
seat)
 Key interlock solenoid Ignition knob switchIgnition knob
(push/release)
Steering lock unitSteering lock
(lock/unlock)
Inside key antenna
(Instrument center, console, rear
seat)Intelligent key
(inside antenna detection
area or not.)
Switch/Input signalInput signal to
IPDM E/R IPDM E/R function Actuator/Output signal
Park/neutral position switch (only
for A/T models)P,N range Engine start function Starter relay
 Starter motor
Switch/Input signalInput signal to
BCM BCM function Actuator/Output signal
Key switchMechanical key
(insert/remove)Engine start function Inside key antenna
(Instrument center, console, rear
seat)
MIIB0785E

INTELLIGENT KEY SYSTEM/ENGINE START FUNCTION
SEC-9
< FUNCTION DIAGNOSIS >[WITH INTELLIGENT KEY SYSTEM]
C
D
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F
G
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MA
B
SEC
N
O
P
 Intelligent Key has 2 IDs (for Intelligent Key and for NATS). It can perform the door lock/unlock operation and
the engine start operation when the registered Intelligent Key is carried.
 When the Intelligent Key battery is discharged, it can be used as emergency back-up by inserting the
mechanical key set in the Intelligent Key to the ignition key cylinder. At that time, perform the NATS ID verifi-
cation. If it is used when the Intelligent Key is carried, perform the Intelligent Key ID verification.
 If the ID is successfully verified, and when the ignition knob switch is pressed, steering lock will be released
and initiating the engine will be possible.
 The door lock/unlock operation can be performed when the Intelligent Key battery is discharged, by operat-
ing the driver door key cylinder using the mechanical key set in the Intelligent Key.
 Up to 4 Intelligent Keys can be registered (including the standard Intelligent Key) on request from the owner.
NOTE:
 Refer to XX-XX, "*****"
for any functions other than engine start function of Intelligent Key system.
PRECAUTIONS FOR INTELLIGENT KEY SYSTEM
In the Intelligent Key system, the transponder [the chip for NATS ID verification] is integrated into the
Intelligent Key. (For non-Intelligent Key systems, it is integrated into the mechanical key.) Therefore,
the mechanical key cannot perform the ID verification, and thus it cannot start the engine. Instead,
the NATS ID verification can be performed by inserting the mechanical key into the key cylinder, and
then it can start the engine.
OPERATION WHEN INTELLIGENT KEY IS CARRIED
1. When the ignition knob switch and brake switch are ON, and Intelligent Key unit is transmitting the request
signal to the Intelligent Key.
2. The Intelligent Key receives the request signal and transmits the Intelligent Key ID signal to the Intelligent
Key unit.
3. The Intelligent Key unit receives the Intelligent Key ID signal and verifies it with the registered ID.
4. Intelligent Key unit transmits the steering lock unlock signal to steering lock unit and turn on the key warn-
ing lamp (green) if the verification results are OK. (The detail of key warning lamp operation, refer to XX-
XX, "*****")
5. Release of the steering lock.
6. BCM transmits the starter request signal via CAN communication to IPDM E/R and turns the starter relay
in IPDM E/R ON if BCM judges that the engine start condition is satisfied.
7. IPDM E/R turns the starter control relay ON when receiving the starter request signal.
8. When shift position is in P or N position, battery power is supplied through the starter relay and operate
the starter motor and to start the cranking.
CAUTION:
If a malfunction is detected in the Intelligent Key system, the “KEY” warning lamp in the combina-
tion meter illuminates. At that time, the engine cannot be started.
OPERATION RANGE
Engine can be started when Intelligent Key is inside the vehicle. However, sometimes engine might not start
when Intelligent Key is on instrument panel or in glove box.
OPERATION WHEN MECHANICAL KEY IS USED
When the Intelligent Key battery is discharged, performs the NATS ID verification between the integrated tran-
sponder and BCM by inserting the mechanical key into the key cylinder, and then the engine can be started.
For details relating to starting the engine using mechanical key, refer to SEC-12, "
System Description".
STEERING LOCK OPERATION
Steering is locked by steering lock unit when ignition switch is in the OFF position (the ignition knob is
released) and key switch is OFF (key is removed from ignition key cylinder).
KEY INTERLOCK OPERATION (ONLY FOR M/T MODELS)
In case of a M/T vehicle is in motion and ignition is turned into LOCK position, steering lock unit causes a risk
by activating the steering lock actuator. The key interlock operation is designed to override the steering lock
system and prevent the situation mentioned above from occuring.
LOCK condition
When the following conditions are fulfilled, key interlock solenoid will be locked. (Steering lock inactive)
 1 second passes after ignition switch is in ON position and engine revolution speed goes above 500 rpm.
UNLOCK condition

IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
SEC-73
< ECU DIAGNOSIS >[WITH INTELLIGENT KEY SYSTEM]
C
D
E
F
G
H
I
J
L
MA
B
SEC
N
O
P
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE
ROOM)
Reference ValueINFOID:0000000001404135
Refer to IPDM E/R.
Fail SafeINFOID:0000000001404139
CAN communication control
When CAN communication with ECM and BCM is impossible, IPDM E/R performs fail-safe control. After CAN
communication recovers normally, it also returns to normal control.
If no CAN communication is available with ECM
*1: HR engine models
*2: MR engine and K9K engine models
If no CAN communication is available with BCM
Ignition relay malfunction detection function
 IPDM E/R monitors the voltage at the contact circuit and excitation coil circuit of the ignition relay inside it.
 IPDM E/R judges the ignition relay error if the voltage differs between the contact circuit and the excitation
coil circuit.
 If the ignition relay cannot turn OFF due to contact seizure, it activates the tail lamp relay for 10 minutes to
alert the user to the ignition relay malfunction when the ignition switch is turned OFF.
Control part Fail-safe in operation
Cooling fan The cooling fan relay-2*
1 or the cooling fan relay-3*2 turns ON when the ignition switch
is turned ON
 Turns off the fan motor low relay when the ignition switch is turned OFF
A/C compressor A/C relay OFF
Control part Fail-safe in operation
Headlamp The headlamp low relay turns ON when the ignition switch is turned ON
 The headlamp low relay turns OFF when the ignition switch is turned OFF
 Headlamp high relay OFF
Parking lamps
 License plate lamps
 Tail lamps
 Illuminations The tail lamp relay turns ON when the ignition switch is turned ON
 The tail lamp relay turns OFF when the ignition switch is turned OFF
Front wiper The status just before activation of fail-safe control is maintained until the ignition
switch is turned OFF while the front wiper is operating at LO or HI speed.
 The front wiper is operated at LO speed until the ignition switch is turned OFF if the
fail-safe control is activated while the front wiper is set in the INT mode and the front
wiper motor is operating.
Front fog lamps Front fog lamp relay OFF
Starter motor Inhibit relay OFF
Rear window defogger Rear window defogger relay OFF
Headlamp washer Headlamp washer relay OFF
PTC heater PTC heater relay OFF
DTC Ignition switch Ignition relay Tail lamp relay
—ONON—
—OFFOFF—
B2098: IGN RLY ON OFF ON ON (10 minutes)
B2099: IGN RLY OFF ON OFF —

SEC-74
< ECU DIAGNOSIS >[WITH INTELLIGENT KEY SYSTEM]
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
NOTE:
The tail lamp relay is turned OFF when the ignition switch is turned ON.
Front wiper control
IPDM E/R detects the front wiper stop position with the front wiper auto stop signal.
When the front wiper auto stop signal is in the conditions listed below, IPDM E/R repeats a front wiper 10 sec-
onds operation and 20 seconds stop five times.
NOTE:
This operation status can be confirmed on the IPDM E/R “Data Monitor” that displays “BLOCK” for the item
“WIP PROT” while the wiper is stopped.
DTC IndexINFOID:0000000001404140
NOTE:
The details of time display are as follows.
 CRNT: The malfunctions that are detected now.
 PAST: The number is indicated when it is normal at present and a malfunction was detected in the past.Ignition switch Front wiper switch Front wiper auto stop signal
ONOFFThe front wiper auto stop signal (stop posi-
tion) cannot be input for 10 seconds.
ONThe front wiper auto stop signal does not
change for 10 seconds.
CONSULT display Fail-safe
TimingNOTEReference page
No DTC is detected.
further testing
may be required.————
U1000: CAN COMM CIRCUIT×CRNT PASTXX-XX, "*****"
B2098: IGN RELAY ON×CRNT PASTXX-XX, "*****"
B2099: IGN RELAY OFF — CRNT PASTXX-XX, "*****"
B2100: EEPROM — CRNT PASTXX-XX, "*****"

SEC-114
< ECU DIAGNOSIS >[WITHOUT INTELLIGENT KEY SYSTEM]
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE
ROOM)
Reference ValueINFOID:0000000001404226
Refer to IPDM E/R.
Fail SafeINFOID:0000000001404229
CAN communication control
When CAN communication with ECM and BCM is impossible, IPDM E/R performs fail-safe control. After CAN
communication recovers normally, it also returns to normal control.
If no CAN communication is available with ECM
*1: HR engine models
*2: MR engine and K9K engine models
If no CAN communication is available with BCM
Ignition relay malfunction detection function
 IPDM E/R monitors the voltage at the contact circuit and excitation coil circuit of the ignition relay inside it.
 IPDM E/R judges the ignition relay error if the voltage differs between the contact circuit and the excitation
coil circuit.
 If the ignition relay cannot turn OFF due to contact seizure, it activates the tail lamp relay for 10 minutes to
alert the user to the ignition relay malfunction when the ignition switch is turned OFF.
Control part Fail-safe in operation
Cooling fan The cooling fan relay-2*
1 or the cooling fan relay-3*2 turns ON when the ignition switch
is turned ON
 Turns off the fan motor low relay when the ignition switch is turned OFF
A/C compressor A/C relay OFF
Control part Fail-safe in operation
Headlamp The headlamp low relay turns ON when the ignition switch is turned ON
 The headlamp low relay turns OFF when the ignition switch is turned OFF
 Headlamp high relay OFF
Parking lamps
 License plate lamps
 Tail lamps
 Illuminations The tail lamp relay turns ON when the ignition switch is turned ON
 The tail lamp relay turns OFF when the ignition switch is turned OFF
Front wiper The status just before activation of fail-safe control is maintained until the ignition
switch is turned OFF while the front wiper is operating at LO or HI speed.
 The front wiper is operated at LO speed until the ignition switch is turned OFF if the
fail-safe control is activated while the front wiper is set in the INT mode and the front
wiper motor is operating.
Front fog lamps Front fog lamp relay OFF
Starter motor Inhibit relay OFF
Rear window defogger Rear window defogger relay OFF
Headlamp washer Headlamp washer relay OFF
PTC heater PTC heater relay OFF
DTC Ignition switch Ignition relay Tail lamp relay
—ONON—
—OFFOFF—
B2098: IGN RLY ON OFFONON (10 minutes)
B2099: IGN RLY OFF ON OFF —