Trans NISSAN TEANA 2008 Service Manual

OVERHEATING CAUSE ANALYSIS
CO-3
< SYMPTOM DIAGNOSIS >
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SYMPTOM DIAGNOSIS
OVERHEATING CAUSE ANALYSIS
Troubleshooting ChartINFOID:0000000003793161
Symptom Check items
Cooling sys-
tem parts
malfunctionPoor heat transferWater pump malfunction Worn or loose drive belt
— Thermostat stuck closed —
Damaged finsDust contamination or pa-
per clogging
Physical damage
Clogged radiator cooling
tubeExcess foreign material
(rust, dirt, sand, etc.)
Reduced air flowCooling fan does not oper-
ate
Fan assembly — High resistance to fan rota-
tion
Damaged fan blades
Damaged radiator shroud — — —
Improper engine coolant
mixture ratio———
Poor engine coolant quality — Engine coolant density —
Insufficient engine coolantEngine coolant leakageCooling hoseLoose clamp
Cracked hose
Water pump Poor sealing
Radiator capLoose
Poor sealing
RadiatorO-ring for damage, deterio-
ration or improper fitting
Cracked radiator tank
Cracked radiator core
Reservoir tank Cracked reservoir tank
Overflowing reservoir tankExhaust gas leakage into
cooling systemCylinder head deterioration
Cylinder head gasket deteri-
oration

RADIATOR
CO-13
< ON-VEHICLE REPAIR >
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ON-VEHICLE REPAIR
RADIATOR
Exploded ViewINFOID:0000000003793172
Removal and InstallationINFOID:0000000003793173
REMOVAL
1. Reservoir tank cap 2. Reservoir tank 3. Clamp
4. Reservoir tank hose 5. Radiator cap 6. Radiator cap adapter
7. Radiator pipe (upper) 8. Clamp 9. Radiator hose (upper)
10. Radiator hose (upper) 11. O-ring 12. Drain plug
13. Water drain hose 14. Mounting rubber (upper) 15. Radiator upper clip
16. Radiator 17. Mounting rubber (lower) 18. Radiator pipe (lower)
19. Radiator hose (lower) 20. Clamp 21. CVT fluid cooler hose
22. CVT fluid cooler hose 23. Grommet 24. Cooling fan assembly
25. Radiator hose (lower)
A. To water outlet B. To transaxle assembly C. To water inlet
Refer to GI-4, "
Components" for symbols in the figure.
JPBIA2200GB

CO-18
< ON-VEHICLE REPAIR >
WATER PUMP
WATER PUMP
Exploded ViewINFOID:0000000003793179
Removal and InstallationINFOID:0000000003793180
CAUTION:
 When removing water pump assembly, be careful not to get engine coolant on drive belt.
 Water pump cannot be disassembled and should be replaced as a unit.
 After installing water pump, connect hose and clamp securely, then check for leakage using the radi-
ator cap tester (commercial service tool) and the radiator cap tester adapter (commercial service
tool).
REMOVAL
1. Remove the following parts.
 Air duct (inlet): Refer to EM-26, "
Exploded View".
 Engine cover: Refer to EM-24, "
Exploded View".
 Engine under cover
 Front road wheel and tire
 Splash guard (RH): Refer to EXT-22, "
FENDER PROTECTOR : Exploded View".
2. Drain engine coolant from radiator. Refer to CO-8, "
Draining".
CAUTION:
 Perform this step when the engine is cold.
 Never spill engine coolant on drive belt.
3. Remove drive belt. Refer to EM-12, "
Removal and Installation".
4. Remove idler pulleys. Refer to EM-25, "
Exploded View".
5. Remove reservoir tank of radiator. Refer to CO-13, "
Exploded View".
6. Remove reservoir tank of power steering oil pump with piping connected, and move it to aside. Refer to
ST-34, "
Exploded View".
7. Support oil pan (lower) bottom with transmission jack.
8. Remove engine mounting insulator (RH), engine mounting bracket (RH) and upper torque rod. Refer to
EM-67, "
Exploded View".
1. Timing chain tensioner (primary) 2.Valve timing control cover gasket
(bank 1)3. Valve timing control cover (bank 1)
4. Water drain plug (front) 5. Water pump cover 6. O-ring
7. O-ring 8. Water pump
A. Apply engine coolant
Refer to GI-4, "
Components" for symbols in the figure.
JPBIA1721GB

DEF-4
< FUNCTION DIAGNOSIS >
REAR WINDOW DEFOGGER SYSTEM
FUNCTION DIAGNOSIS
REAR WINDOW DEFOGGER SYSTEM
WITH AV CONTROL UNIT
WITH AV CONTROL UNIT : System DiagramINFOID:0000000003806025
WITH AV CONTROL UNIT : System DescriptionINFOID:0000000003806026
Operation Description
 Turn rear window defogger switch ON when the ignition switch is turned ON. Then multifunction switch (rear
window defogger switch) transmits rear window defogger switch signal to AV control unit via AV communica-
tion. AV control unit transmits rear window defogger switch signal to BCM via CAN communication.
 BCM turns rear window defogger relay ON and transmits rear window defogger control signal to IPDM E/R
via CAN communication when rear window defogger switch signal is received.
 Rear window defogger and door mirror defogger are supplied with power and operate when rear window
defogger relay turns ON.
 IPDM E/R transmits rear window defogger control signal to AV control unit via CAN communication.
 When receiving the signal, AV control unit indicates rear defogger ON on the display. At the same time, AV
control unit transmits rear defogger control signal to multifunction switch (rear window defogger switch) via
AV communication and illuminates rear defogger switch indicator.
Timer function
 BCM turns rear window defogger relay ON for approximately 15 minutes when rear window defogger switch
is turned ON. It makes rear window defogger and door mirror defogger (with door mirror defogger) operate.
 Timer is canceled after pressing rear window defogger switch again during timer operation. Then BCM turns
rear window defogger relay OFF. The same reaction also occurs during timer operation, if the ignition switch
is turned OFF.
INPUT/OUTPUT SIGNAL CHART
JMLIA0005GB
Switch Input signal to BCM BCM function Actuator
Rear window defogger switch Defogger switch signal
Rear window defogger & Door mir-
ror defogger controlRear window defogger
Door mirror defogger
Push button ignition switch Ignition signal

REAR WINDOW DEFOGGER SYSTEM
DEF-5
< FUNCTION DIAGNOSIS >
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WITH AV CONTROL UNIT : Component Parts LocationINFOID:0000000003806027
WITH AV CONTROL UNIT : Component DescriptionINFOID:0000000003806028
1. BCM M118, M119, M122, M123 2. IPDM E/R E11 3. Rear window defogger switch M125
(built-in multifunction switch)
4. Rear window defogger connector
B1265. Condenser B125 6. Rear window defogger connector
B303
7. AV control unit M129, M131
A. Behind the combination meter B. Engine room dash panel (LH) C. Behind rear pillar finisher (LH)
D. Behind rear pillar finisher (RH) E. Behind cluster lid C
JMLIA0150ZZ
BCM Operates the rear window defogger via rear window defogger switch
 Performs the timer control of rear window defogger
Rear window defogger relay Operates the rear window defogger and the door mirror defogger with the control signal from
BCM
IPDM E/R  Transmits rear window defogger control signal to AV control unit via CAN communication
Multifunction switch
(Rear window defogger
switch) The rear window defogger switch is installed
 Turns the indicator lamp ON when detecting the operation of rear window defogger
AV control unit Displays the rear window defogger is ON on the display when detecting the operation of rear
window defogger
Rear window defogger Heats the heating wire with the power supply from the rear window defogger relay to prevent
the rear window from fogging up
Door mirror defogger Heats the heating wire with the power supply from the rear window defogger relay to prevent
the door mirror from fogging up

DEF-6
< FUNCTION DIAGNOSIS >
REAR WINDOW DEFOGGER SYSTEM
WITHOUT AV CONTROL UNIT
WITHOUT AV CONTROL UNIT : System DiagramINFOID:0000000003806029
WITHOUT AV CONTROL UNIT : System DescriptionINFOID:0000000003806030
Operation Description
 Turn rear window defogger switch ON when the ignition switch is turned ON. Then A/C control unit (rear win-
dow defogger switch) transmits rear window defogger switch signal to A/C auto amp. and BCM.
 BCM turns rear window defogger relay ON and transmits rear window defogger control signal to IPDM E/R
via CAN communication when rear window defogger switch signal is received.
 Rear window defogger and door mirror defogger are supplied with power and operate when rear window
defogger relay turns ON.
 Rear window defogger relay transmits rear window defogger control signal to A/C auto amp. when rear win-
dow defogger operates.
 When receiving the signal, A/C auto amp. indicates rear defogger ON on the display. At the same time, A/C
auto amp. transmits rear defogger control signal to A/C control unit (rear window defogger switch) and illumi-
nates rear defogger switch indicator.
Timer function
 BCM turns rear window defogger relay ON for approximately 15 minutes when rear window defogger switch
is turned ON. It makes rear window defogger and door mirror defogger (with door mirror defogger) operate.
 Timer is canceled after pressing rear window defogger switch again during timer operation. Then BCM turns
rear window defogger relay OFF. The same reaction also occurs during timer operation, if the ignition switch
is turned OFF.
INPUT/OUTPUT SIGNAL CHART
JMLIA0154GB
Switch Input signal to BCM BCM function Actuator
Rear window defogger switch Defogger switch signal
Rear window defogger & Door mir-
ror defogger controlRear window defogger
Door mirror defogger
Push button ignition switch Ignition signal

REAR WINDOW DEFOGGER SYSTEM
DEF-7
< FUNCTION DIAGNOSIS >
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WITHOUT AV CONTROL UNIT : Component Parts LocationINFOID:0000000003806031
WITHOUT AV CONTROL UNIT : Component DescriptionINFOID:0000000003806032
1. BCM M118, M119, M122, M123 2. IPDM E/R E11 3. Rear window defogger switch M95
(built-in A/C control)
4. Rear window defogger connector
B1265. Condenser B125 6. Rear window defogger connector
B303
7. A/C auto amp. M50
A. Behind the combination meter B. Engine room dash panel (LH) C. Behind rear pillar finisher (LH)
D. Behind rear pillar finisher (RH) E. Behind cluster lid C
JMLIA0151ZZ
BCM Operates the rear window defogger with the operation of rear window defogger switch
 Performs the timer control of rear window defogger
Rear window defogger relay Operates the rear window defogger and the door mirror defogger with the control signal from
BCM
IPDM E/R  Transmit rear window defogger control signal to ECM via CAN communication
A/C control
(Rear window defogger
switch) The rear window defogger switch is installed
 Turns the indicator lamp ON when detecting the operation of rear window defogger
A/C auto amp. Displays the rear window defogger ON to the display when detecting the operation of rear win-
dow defogger
Rear window defogger Heats the heating wire with the power supply from the rear window defogger relay to prevent
the rear window from fogging up
Door mirror defogger Heats the heating wire with the power supply from the rear window defogger relay to prevent
the door mirror from fogging up

BCM (BODY CONTROL MODULE)
DEF-55
< ECU DIAGNOSIS >
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PHIGH FLASHER OPERATION
BCM detects the turn signal lamp circuit status by the current value.
BCM increases the turn signal lamp blinking speed if the bulb or harness open is detected with the turn signal
lamp operating.
NOTE:
The blinking speed is normal while activating the hazard warning lamp.
DTC Inspection Priority ChartINFOID:0000000003940043
If some DTCs are displayed at the same time, perform inspections one by one based on the following priority
chart.
B2608: STARTER RELAY Inhibit engine cranking500 ms after the following signal communication status becomes
consistent
 Starter motor relay control signal
 Starter relay status signal (CAN)
B2609: S/L STATUS Inhibit engine cranking
 Inhibit steering lockWhen the following steering lock conditions agree
 BCM steering lock control status
 Steering lock condition No. 1 signal status
 Steering lock condition No. 2 signal status
B260A: IGNITION RELAY Inhibit engine cranking500 ms after the following conditions are fulfilled
 IGN relay (IPDM E/R) control signal: OFF (Battery voltage)
 Ignition ON signal (CAN to IPDM E/R): OFF (Request signal)
 Ignition ON signal (CAN from IPDM E/R): OFF (Condition signal)
B260F: ENG STATE SIG LOSTMaintains the power supply
position attained at the time
of DTC detectionWhen any of the following conditions is fulfilled
 Power position changes to ACC
 Receives engine status signal (CAN)
B2612: S/L STATUS Inhibit engine cranking
 Inhibit steering lockWhen any of the following conditions is fulfilled
 Steering lock unit status signal (CAN) is received normally
 The BCM steering lock control status matches the steering lock
status recognized by the steering lock unit status signal (CAN
from IPDM E/R)
B2617: STARTER RELAY CIRC Inhibit engine cranking1 second after the starter motor relay control inside BCM becomes
normal
B2618: BCM Inhibit engine cranking1 second after the ignition relay (IPDM E/R) control inside BCM be-
comes normal
B2619: BCM Inhibit engine cranking1 second after the steering lock unit power supply output control in-
side BCM becomes normal
B261E: VEHICLE TYPE Inhibit engine cranking BCM initialization
B26E1: ENG STATE NO RES Inhibit engine crankingWhen any of the following conditions is fulfilled
 Power position changes to ACC
 Receives engine status signal (CAN)
B26E9: S/L STATUS Inhibit engine cranking
 Inhibit steering lockWhen BCM transmits the LOCK request signal to steering lock unit,
and receives LOCK response signal from steering lock unit, the fol-
lowing conditions is fulfilled
 Steering condition No. 1 signal: LOCK (0 V)
 Steering condition No. 2 signal: LOCK (Battery voltage) Display contents of CONSULT Fail-safe Cancellation
Priority DTC
1 B2562: LOW VOLTAGE
2 U1000: CAN COMM CIRCUIT
 U1010: CONTROL UNIT (CAN)
3 B2190: NATS ANTENNA AMP
 B2191: DIFFERENCE OF KEY
 B2192: ID DISCORD BCM-ECM
 B2193: CHAIN OF BCM-ECM

POWER DOOR LOCK SYSTEM
DLK-13
< FUNCTION DIAGNOSIS >[WITH INTELLIGENT KEY SYSTEM]
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Front door lock assembly (unlock sensor) Detects door lock condition of driver door.
Door switch Inputs door open/close condition to BCM.
Key slot Inputs key insert/remove signal to BCM.
Combination meter Receives buzzer signal from BCM via CAN communication line, and sounds the buzzer.
 Transmits vehicle speed signal to CAN communication line.
TCM Transmits shift position signal to BCM via CAN communication line.Item Function

DLK-16
< FUNCTION DIAGNOSIS >[WITH INTELLIGENT KEY SYSTEM]
INTELLIGENT KEY SYSTEM
INTELLIGENT KEY SYSTEM : Component Description
INFOID:0000000003794741
DOOR LOCK FUNCTION
10. Inside key antenna (instrument cen-
ter) M10511. Inside key antenna (trunk room) B86 12. Outside key antenna (rear bumper)
D85
13. Front outside handle LH (request
switch) D1114. Front outside handle LH
(outside key antenna) D1215. Trunk lid lock assembly
(trunk lid opener actuator) T5
16. Front door switch (driver side) B34
A. Behind the combination meter B. Engine room (LH) C. Behind the instrument lower panel
RH
D. Behind the center console E. Behind the audio unit F. View with rear bumper removed
1. Front door lock assembly (driver
side) D92. Rear door lock assembly LH D85 3. Trunk lid opener request switch T6
A. View with front door finisher removed B. View with rear door finisher removed C. View with trunk lid
JMKIA2376ZZ
Item Function
BCM Controls the Intelligent Key system.
Front door lock assembly (door lock
actuator)Outputs lock/unlock signal from BCM and locks/unlocks each door.
Front door lock assembly (unlock
sensor)Detects door lock condition of driver door.
Door switch Inputs door open/close condition to BCM.
Remote keyless entry receiver Receives lock/unlock signal from the Intelligent Key, and then transmits to BCM.
Request switch Inputs lock/unlock operation to BCM.
Intelligent Key Transmits button operation to remote keyless entry receiver.
Outside key antenna Detects if Intelligent Key is outside the vehicle.
Inside key antenna Detects if Intelligent Key is inside the vehicle.
Intelligent Key warning buzzer Warns the user of the lock/unlock condition and inappropriate operations with the buzzer sound.