relay NISSAN TEANA 2014 Service Manual

SYSTEM
HAC-119
< SYSTEM DESCRIPTION > [MANUAL AIR CONDITIONER]
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2. The blower speed dial is turned completely counterclockwise to the OFF position.
3. The A/C switch is manually turned OFF.
In other words, the compressor ON request cannot be turned off in D/F or DEF modes.
REFRIGERANT PRESSURE PROTECTION
The refrigerant system is protected against excessively high- or low-pressures by the refrigerant pressure sen-
sor, located on the liquid tank on the condenser. The refr igerant pressure sensor detects the pressure inside
the refrigerant line and sends a voltage signal to the EC M. If the system pressure rises above or falls below
the following values, the ECM requests the IPDM E/ R to de-energize the A/C relay and disengage the com-
pressor.
• 3.12 MPa (31.82 kg/cm
2, 452.4 psi) or more (When the engine speed is less than 1,500 rpm)
• 2.74 MPa (27.95 kg/cm
2, 397.3 psi) or more (When the engine speed is 1,500 rpm or more)
• 0.14 MPa (1.43 kg/cm
2, 20.3 psi) or less
PRESSURE RELIEF VALVE
The refrigerant system is also protected by a pressure relief valve, located in the rear head of the compressor.
When the pressure of refrigerant in the system incr eases to an abnormal level [more than 2,990 kPa (30.5 kg/
cm
2, 433.6 psi)], the release port on the pressure relief valve automatically opens and releases refrigerant into
the atmosphere.
COMPRESSOR OIL CIRCULATION CONTROL
When the engine starts while the engine coolant temperature is 56 °C (133 °F) or less, ECM activates the com-
pressor for approximately 6 seconds and circulates the compressor lubricant once.
OPERATING RATE CONTROL
When the set temperature is other than fully cold or the air outlet is “VENT”, “B/L” or “FOOT”, the front air con-
trol controls the compressor activation depending on ambient temperature.
Door ControlINFOID:0000000009463200
DOOR MOTOR CONTROL
• A Local Control Unit (LCU) is built into each door motor and detects the door position by using a Position
Balanced Resistor (PBR).
• Each door motor LCU has a unique address. The front air control communicates with the door motor LCUs by using each door’s unique communication address. The front air control sends requested door position
commands to each door motor LCU via a Local Interconnect Network (LIN) communication line. Each door
motor’s LCU receives the command and sends back a door position feedback signal.
• Each LCU controls each door to the appropriate posit ion depending on the control signal from the front air
control. When the door movement is complete, the LCU transmits a signal to the front air control indicating
that the door movement is complete.
SWITCHES AND THEIR CONTROL FUNCTION
ALIIA0607GB
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HAC-126
< SYSTEM DESCRIPTION >[MANUAL AIR CONDITIONER]
DIAGNOSIS SYSTEM (IPDM E/R)
DIAGNOSIS SYSTEM (IPDM E/R)
CONSULT Function (IPDM E/R)INFOID:0000000009958324
CAUTION:
After disconnecting the CONSULT vehicle interface (VI) from the data link connector, the ignition must
be cycled OFF → ON (for at least 5 seconds) → OFF. If this step is not performed, the BCM may not go
to ”sleep mode”, potentially causing a di scharged battery and a no-start condition.
APPLICATION ITEM
CONSULT performs the following functions via CAN communication with IPDM E/R.
ECU IDENTIFICATION
The IPDM E/R part number is displayed.
SELF DIAGNOSTIC RESULT
Refer to PCS-20, "DTC Index".
DATA MONITOR
Direct Diagnostic Mode Description
Ecu Identification The IPDM E/R part number is displayed.
Self Diagnostic Result The IPDM E/R self diagnostic results are displayed.
Data Monitor The IPDM E/R input/output data is displayed in real time.
Active Test The IPDM E/R activates outputs to test components.
CAN Diag Support Mntr The result of transmit/receive diagnosis of CAN communication is displayed.
Monitor Item [Unit] Main
Signals Description
MOTOR FAN REQ [%] ×Indicates cooling fan speed signal received from ECM on CAN communication
line
AC COMP REQ [On/Off] ×Indicates A/C compressor request signal received from ECM on CAN commu-
nication line
TAIL&CLR REQ [On/Off] ×Indicates position light request signal received from BCM on CAN communica-
tion line
HL LO REQ [On/Off] ×Indicates low beam request signal received from BCM on CAN communication
line
HL HI REQ [On/Off] ×Indicates high beam request signal received from BCM on CAN communication
line
FR FOG REQ [On/Off] ×Indicates front fog light request signal received from BCM on CAN communica-
tion line
FR WIP REQ [Stop/1LOW/Low/Hi] ×Indicates front wiper request signal received from BCM on CAN communication
line
WIP AUTO STOP [STOP P/ACT P] ×Indicates condition of front wiper auto stop signal
WIP PROT [Off/BLOCK] ×Indicates condition of front wiper fail-safe operation
IGN RLY1 -REQ [On/Off] Indicates ignition switch ON signal received from BCM on CAN communication
line
IGN RLY [On/Off] ×Indicates condition of ignition relay
PUSH SW [On/Off] Indicates condition of push-button ignition switch
INTER/NP SW [On/Off] Indicates condition of CVT shift position
ST RLY CONT [On/Off] Indicates starter relay status signal received from BCM on CAN communication
line
IHBT RLY -REQ [On/Off] Indicates starter control relay signal received from BCM on CAN communication
line
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DIAGNOSIS SYSTEM (IPDM E/R)HAC-127
< SYSTEM DESCRIPTION > [MANUAL AIR CONDITIONER]
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ACTIVE TEST
CAN DIAG SUPPORT MNTR
Refer to LAN-15, "CAN Diagnostic Support Monitor".
ST/INHI RLY [Off/ ST /INHI] Indicates condition of starter relay and starter control relay
DETENT SW [On/Off] Indicates condition of CVT shift selector (park position switch)
DTRL REQ [Off] Indicates daytime light request signal received from BCM on CAN communica-
tion line
HOOD SW [On/Off] Indicates condition of hood switch
THFT HRN REQ [On/Off] Indicates theft warning horn request signal received from BCM on CAN commu-
nication line
HORN CHIRP [On/Off] Indicates horn reminder signal received from BCM on CAN communication line
HOOD SW 2 [On/Off] Indicates condition of hood switch 2 Monitor Item [Unit]
Main
Signals Description
Test item Description
HORN This test is able to check horn operation [On].
FRONT WIPER This test is able to check wiper motor operation [Hi/Lo/Off].
MOTOR FAN This test is able to check cooling fan operation [4/3/2/1].
EXTERNAL LAMPS This test is able to check external lamp operation [Fog/Hi/Lo/TAIL/Off].
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BLOWER MOTORHAC-149
< DTC/CIRCUIT DIAGNOSIS > [MANUAL AIR CONDITIONER]
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1. Reconnect blower motor connector and front air control connector.
2. Turn ignition switch ON.
3. Operate MODE switch to set air outlet to VENT.
4. Change fan speed from Lo to Hi, and check duty ratios between blower motor harness connector and
ground by using an oscilloscope.
NOTE:
Calculate drive signal duty ratio as shown in the figure.
T2 = Approx. 1.6 ms
Is the inspection result normal?
YES >> Replace blower motor. Refer to VTL-13, "BLOWER MOTOR : Removal and Installation".
NO >> Replace front air control. Refer to HAC-102, "Removal and Installation"
.
6.CHECK BLOWER MOTOR RELAY GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Check continuity between fuse bl ock (J/B) harness connector and ground.
Is the inspection result normal?
YES >> GO TO 7.
NO >> Repair harness or connector.
7.CHECK FRONT BLOWER MOTOR RELAY
Check front blower motor relay. Refer to HAC-149, "Component Inspection (Front Blower Motor Relay)"
.
Is the inspection result normal?
YES >> Repair harness or connector between blower motor and fuse block (J/B).
NO >> Replace front blower motor relay.
Component Inspection (Blower Motor)INFOID:0000000009463215
1.CHECK BLOWER MOTOR
1. Connect battery voltage to terminal 1 of blower motor.
2. Connect ground to terminal 2 of blower motor.
Does the blower fan operate?
YES >> Intermittent incident. Refer to GI-43, "Intermittent Incident".
NO >> Replace blower motor. Refer to VTL-13, "BLOWER MOTOR : Removal and Installation"
.
Component Inspection (Front Blower Motor Relay)INFOID:0000000009463216
1.CHECK BLOWER RELAY
1. Turn ignition switch OFF.
2. Remove front blower motor relay.
Blower motor Condition Duty ratio
(Approx.)
Connector Terminal Fan speed (manual)
VENT mode
M31 17 1st 25 %
2nd 33 % 3rd 41 %4th 51 %
5th 61 %
6th 69 %
7th 81 %
JPLIA1210GB
Fuse block (J/B) —Continuity
Connector Terminal
M4 13R Ground Yes
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HAC-150
< DTC/CIRCUIT DIAGNOSIS >[MANUAL AIR CONDITIONER]
BLOWER MOTOR
3. Check continuity between front blower motor relay terminals 3
and 5 when voltage is supplied between terminals 1 and 2.
Is the inspection result normal?
YES >> Inspection End.
NO >> Replace front blower motor relay.
Terminals Voltage Continuity
35 ON Yes
OFF No
JSIIA1551ZZ
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COMPONENT PARTSINL-5
< SYSTEM DESCRIPTION >
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SYSTEM DESCRIPTION
COMPONENT PARTS
Component Parts LocationINFOID:0000000009463861
Component DescriptionINFOID:0000000009463862
1. BCM (view with combination meter re- moved) 2. Front door switch LH
(RH similar) 3. Rear door switch LH
(RH similar)
4. Main power window and door lock/un- lock switch 5. Power window and door lock/unlock
switch RH 6. Trunk lamp switch and trunk release
solenoid
(Trunk lamp switch)
7. Front door lock assembly LH (key cylinder switch) 8. Combination switch
(lighting and turn signal switch) 9. Push-button ignition switch
10. IPDM E/R (tail lamp relay) 11. Meter control switch
(illumination control switch)
Part name Description
BCM The BCM monitors the combination switch (lighting and turn signal
switch) position. The BCM requests via CAN communication that
the IPDM E/R activate the tail lamp relay.
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INL-6
< SYSTEM DESCRIPTION >
COMPONENT PARTS
IPDM E/RThe IPDM E/R activates the tail lamp relay based on inputs re-
ceived from the BCM via the CAN communication.
Push button ignition switch Provides ignition switch status to the BCM.
Door switches Provides door OPEN/CLOSED status to the BCM.
Combination switch
(lighting and turn signal switch) The combination switch (lighting and turn signal switch) provides
input to the BCM. The BCM then sends a tail lamp relay request
signal to the IPDM E/R via CAN communication to operate the il-
lumination system.
Trunk lamp switch and release solenoid
(trunk lamp switch) Provides trunk lamp switch OP
EN/CLOSED status to the BCM.
Power window and door lock/unlock switch RH Provides door lock/unlock position switch RH status to the BCM.
Main power window and door lock/unlock switch Provides door lock/unlock position switch LH status to the BCM.
Meter control switch
(illumination control switch) • Adjusts the illumination system and combination meter illumina-
tion brightness (with multiple illumination control).
• Only adjusts the combination meter illumination brightness
(with meter illumination control only).
Front door lock assembly LH (key cylinder switch) Provides front door lock assembly LH (key cylinder switch) door
lock/unlock switch position status to the BCM.
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ILLUMINATION CONTROL SYSTEMINL-9
< SYSTEM DESCRIPTION >
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ILLUMINATION CONTROL SYSTEM
System DiagramINFOID:0000000009463865
WITH MULTIPLE ILLUMINATION CONTROL
WITH METER ILLUMINATION CONTROL ONLY
System DescriptionINFOID:0000000009463866
WITH MULTIPLE ILLUMINATION CONTROL
The illumination system is activated by the combinat ion switch (lighting and turn signal switch) when the
switch is placed in the 1st or 2nd position (or if the auto light system is activated).
The illumination system and combination meter illuminati on brightness is adjustable using the meter control
switch (illumination control switch).
• The BCM (body control module) receives the parking lamp request signal from the combination switch (light-
ing and turn signal switch) to turn the lights on.
• The BCM sends the parking lamp request signal to t he IPDM E/R (intelligent power distribution module
engine room) via CAN communication.
• IPDM E/R receives the parking lamp request signal from the BCM to activate the tail lamp relay and provide
power to the illumination system.
WITH METER ILLUMINATION CONTROL ONLY
The illumination system is activated by the combinat ion switch (lighting and turn signal switch) when the
switch is placed in the 1st or 2nd position (or if the auto light system is activated).
Only the combination meter illumination brightness is adjustable using the meter control switch (illumination
control switch).
AWLIA1963GB
AWLIA2226GB
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INL-10
< SYSTEM DESCRIPTION >
ILLUMINATION CONTROL SYSTEM
• The BCM (body control module) receives the parking lamp request signal from the combination switch (light-
ing and turn signal switch) to turn the lights on.
• The BCM sends the parking lamp request signal to t he IPDM E/R (intelligent power distribution module
engine room) via CAN communication.
• IPDM E/R receives the parking lamp request signal from the BCM to activate the tail lamp relay and provide power to the illumination system.
BATTERY SAVER CONTROL
When the combination switch (lighting and turn signal switch) is in the 1st or 2nd position and the ignition
switch is set from ON or ACC to OFF, the battery save r control feature is activated. Under this condition, the
illumination system remains on for 15 minutes unless the combination switch (lighting and turn signal switch)
position is changed. If the combination switch (light ing and turn signal switch) position is changed, then the
illumination system is turned off after a 30 second delay . When the combination switch (lighting and turn signal
switch) is turned from OFF to 1st or 2nd position (or if auto light system is activated) after illumination system
has been turned off by the battery saver control, the illumination lights illuminate again.
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INL-14
< SYSTEM DESCRIPTION >
DIAGNOSIS SYSTEM (BCM)
SELF DIAGNOSTIC RESULT
Refer to BCS-52, "DTC Index".
DATA MONITOR
Monitor Item [Unit] Main Description
REQ SW -DR [On/Off] ×Indicates condition of door request switch LH.
REQ SW -AS [On/Off] ×Indicates condition of door request switch RH.
REQ SW -BD/TR [On/Off] ×Indicates condition of trunk opener request switch.
PUSH SW [On/Off] Indicates condition of push-button ignition switch.
SHFTLCK SLNID PER SPLY [On/Off] ×Indicates condition of power supply to shiftlock solenoid.
BRAKE SW 1 [On/Off] ×Indicates condition of brake switch.
BRAKE SW 2 [On/Off] Indicates condition of brake switch.
DETE/CANCL SW [On/Off] ×Indicates condition of P (park) position.
SFT PN/N SW [On/Off] ×Indicates condition of P (park) or N (neutral) position.
UNLK SEN -DR [On/Off] ×Indicates condition of door unlock sensor.
PUSH SW -IPDM [On/Off] Indicates condition of push-button ignition switch received from IPDM E/R
on CAN communication line.
IGN RLY1 -F/B [On/Off] Indicates condition of ignition relay 1 received from IPDM E/R on CAN
communication line.
DETE SW -IPDM [On/Off] Indicates condition of detent switch received from TCM on CAN communi-
cation line.
SFT PN -IPDM [On/Off] Indicates condition of P (park) or N (neutral) position from TCM on CAN
communication line.
SFT P -MET [On/Off] Indicates condition of P (park) position from TCM on CAN communication
line.
SFT N -MET [On/Off] Indicates condition of N (neutral) position from IPDM E/R on CAN commu-
nication line.
ENGINE STATE [STOP/START/CRANK/RUN] ×Indicates condition of engine state from ECM on CAN communication line.
VEH SPEED 1 [mph/km/h] ×Indicates condition of vehicle speed signal received from ABS on CAN
communication line.
VEH SPEED 2 [mph/km/h] ×Indicates condition of vehicle speed signal received from combination
meter on CAN communication line.
DOOR STAT -DR [LOCK/READY/UNLK] ×Indicates condition of driver side door status.
DOOR STAT -AS [LOCK/READY/UNLK] ×Indicates condition of passenger side door status.
DOOR STAT -RR [LOCK/READY/UNLK] ×Indicates condition of rear right side door status.
DOOR STAT -RL [LOCK/READY/UNLK] ×Indicates condition of rear left side door status.
ID OK FLAG [Set/Reset] Indicates condition of Intelligent Key ID.
PRMT ENG STRT [Set/Reset] Indicates condition of engine start possibility.
PRMT RKE STRT [Set/Reset] Indicates condition of engine start possibility from Intelligent Key.
I-KEY OK FLAG [Key ON/Key OFF] ×Indicates condition of Intelligent Key OK flag.
PRBT ENG STRT [Set/Reset] Indicates condition of engine start prohibit.
ID AUTHENT CANCEL TIMER [STOP] Indicates condition of Intelligent Key ID authentication.
ACC BATTERY SAVER [STOP] Indicate s condition of battery saver.
CRNK PRBT TMR [On/Off] Indicates co ndition of crank prohibit timer.
AUT CRNK TMR [On/Off] Indicates co ndition of automatic engine crank timer fr om Intelligent Key.
CRNK PRBT TME [sec] Indicat es condition of engine crank prohibit time.
AUTO CRNK TME [sec] Indicates co ndition of automatic engine crank time from Intelligent Key.
CRANKING TME [sec] Indicates condition of engine cranking time from Intelligent Key.
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