2008 NISSAN TEANA Trans

MWI
FUEL LEVEL SENSOR SIGNAL CIRCUIT
MWI-45
< COMPONENT DIAGNOSIS >
C
D
E
F
G
H
I
J
K
L
MB A
O
P
FUEL LEVEL SENSOR SIGNAL CIRCUIT
DescriptionINFOID:0000000003792570
The fuel level sensor unit and fuel pump detect the fuel level in the fuel tank and transmit the fuel gauge signal
to the combination meter.
Component Function CheckINFOID:0000000003792571
1.CHECK COMBINATION METER OUTPUT SIGNAL
Select the “Data Monitor” for the “METER/M&A” and compare the “FUEL METER” monitor value with the fuel
gauge reading on the combination meter.
Does monitor value match fuel gauge reading?
YES >> INSPECTION END
NO >> Replace combination meter.
Diagnosis ProcedureINFOID:0000000003792572
1.CHECK COMBINATION METER INPUT SIGNAL
1. Turn ignition switch ON.
2. Check voltage between combination meter harness connector terminal and ground.
Does it match fuel gauge reading?
YES >> GO TO 2.
NO >> Replace the combination meter.
2.CHECK FUEL LEVEL SENSOR CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect combination meter connector and fuel level sensor unit and fuel pump connector.
3. Check continuity between combination meter harness connector terminal and fuel level sensor unit and
fuel pump harness connector terminal.
Fuel gauge pointer Reference value of data monitor [lit.]
Full Approx. 64.6
Three quarters Approx. 53.5
Half Approx. 36.0
A quarter Approx. 18.5
Empty Approx. 8.0
Te r m i n a l s
Vo l ta g e
(Approx.) (+) (-)
Combination meter
Ground Terminal Connector
M34 34
JPNIA0740ZZ

MWI-48
< COMPONENT DIAGNOSIS >
METER CONTROL SWITCH SIGNAL CIRCUIT
METER CONTROL SWITCH SIGNAL CIRCUIT
DescriptionINFOID:0000000003792574
Transmits the following signals to the combination meter.
Diagnosis ProcedureINFOID:0000000003792575
1.CHECK METER CONTROL SWITCH INPUT SIGNAL
1. Turn the ignition switch ON.
2. Check voltage between the following terminals of the combination meter.
Is the inspection result normal?
YES >> INSPECTION END
NO >> GO TO 2.
2.CHECK METER CONTROL SWITCH SIGNAL CIRCUIT
1. Turn the ignition switch OFF.
2. Disconnect the combination meter and meter control switch connectors.
3. Check continuity between combination meter harness connector terminals and meter control switch har-
ness connector terminals.
4. Check continuity between combination meter harness connector terminals and ground.
Is the inspection result normal?
 (enter) switch is pressed (select) switch signal
Te r m i n a l s
ConditionVol tag e
(Approx.) Combination meter
(+) (-)
Connector Terminal Connector Terminal
M3411
M34 10When (enter) switch is pressed0 V
Other than the above 5 V
12When (select) switch is pressed0 V
Other than the above 5 V
Te r m i n a l s
Continuity Combination meter Meter control switch
(+) (-)
Connector Terminal Connector Terminal
M3410
M832
Existed 11 7
12 6
Te r m i n a l s
Continuity (+) (-)
Combination meter
Ground Connector Terminal
M3410
Not existed 11
12

MWI-50
< COMPONENT DIAGNOSIS >
OIL PRESSURE SWITCH SIGNAL CIRCUIT
OIL PRESSURE SWITCH SIGNAL CIRCUIT
DescriptionINFOID:0000000003792577
Detects the engine oil pressure and transmits the oil pressure switch signal to IPDM E/R.
Component Function CheckINFOID:0000000003792578
1.CHECK COMBINATION METER INPUT SIGNAL
Select the “Data Monitor” for the “METER/M&A” and check the “OIL W/L” monitor value.
>> INSPECTION END
Diagnosis ProcedureINFOID:0000000003792579
1.CHECK OIL PRESSURE SWITCH CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect IPDM E/R connector and oil pressure switch connector.
3. Check continuity between IPDM E/R harness connector terminal and oil pressure switch harness connec-
tor terminal.
4. Check continuity between IPDM E/R harness connector terminal and ground.
Is the inspection result normal?
YES >> INSPECTION END
NO >> Repair harness or connector.
Component InspectionINFOID:0000000003792580
1.CHECK OIL PRESSURE SWITCH UNIT
“OIL W/L”
Ignition switch ON : On
Engine running : Off
Te r m i n a l s
Continuity (+) (-)
IPDM E/R Oil pressure switch
Connector Terminal Connector Terminal
F12 75 F63 1 Existed
Te r m i n a l s
Continuity (+) (-)
IPDM E/R
Ground Connector Terminal
F12 75 Not existed

MWI-52
< COMPONENT DIAGNOSIS >
PARKING BRAKE SWITCH SIGNAL CIRCUIT
PARKING BRAKE SWITCH SIGNAL CIRCUIT
DescriptionINFOID:0000000003792581
Transmits the parking brake switch signal to the combination meter.
Diagnosis ProcedureINFOID:0000000003792582
1.CHECK COMBINATION METER INPUT SIGNAL
1. Turn ignition switch ON.
2. Check the voltage and waveform between combination meter harness connector terminal and ground.
Is the inspection result normal?
YES >> INSPECTION END
NO >> GO TO 2.
2.CHECK PARKING BRAKE SWITCH SIGNAL CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect combination meter connector and parking brake switch connector.
3. Check continuity between combination meter harness connector terminal and parking brake switch har-
ness connector terminal.
4. Check continuity between combination meter harness connector terminal and ground.
Is the inspection result normal?
YES >> INSPECTION END
NO >> Repair harness or connector.
Component InspectionINFOID:0000000003792583
1.CHECK PARKING BRAKE SWITCH
Check parking brake switch. Refer to BRC-124, "
Component Inspection".
Is the inspection result normal?
YES >> INSPECTION END.
NO >> Replace parking brake switch.
Te r m i n a l s
ConditionVol tag e
(Approx.) (+) (-)
Combination meter
Ground Connector Terminal
M34 26When parking brake is applied 0 V
When parking brake is released 5 V
Te r m i n a l s
Continuity (+) (-)
Combination meter Parking brake switch
Connector Terminal Connector Terminal
M34 26 E27 1 Existed
Te r m i n a l s
Continuity (+) (-)
Combination meter
Ground Connector Terminal
M34 26 Not existed

MWI
COMBINATION METER
MWI-67
< ECU DIAGNOSIS >
C
D
E
F
G
H
I
J
K
L
MB A
O
P
DTC IndexINFOID:0000000003792591
Function Specifications
Speedometer
Reset to zero by suspending communication. Tachometer
Water temperature gauge
Illumination controlWhen suspending communication, changes to nighttime
mode.
Information displayDoor open warning
The display turns off by suspending communication. Trunk open warning
Parking brake release warning
Instantaneous fuel warning  When reception time of an abnormal signal is 2 seconds or
less, the last received datum is used for calculation to indi-
cate the result.
 When reception time of an abnormal signal is more than two
seconds, the last result calculated during normal condition
is indicated. Average fuel consumption
Average vehicle speed
Travel distance
Buzzer The buzzer turns off by suspending communication.
Warning lamp/indicator
lampABS warning lamp
The lamp turns on by suspending communication. VDC OFF indicator lamp
SLIP indicator lamp
Brake warning lamp
High beam indicator lamp
The lamp turns off by suspending communication. Front fog light indicator lamp
Rear fog light indicator lamp
Turn signal indicator lamp
Light indicator lamp
Oil pressure warning lamp
Malfunction indicator lamp
CRUISE indicator lamp
SPORT indicator lamp
Key warning lamp
Display contents of CONSULT-III Diagnostic item is detected when ... Refer to
CAN COMM CIRCUIT
[U1000]When combination meter is not transmitting or receiving CAN communication signal
for 2 seconds or more.MWI-37,
"Diagnosis
Procedure"
CONTROL UNIT (CAN)
[U1010]When detecting error during the initial diagnosis of the CAN controller of combina-
tion meter.MWI-38, "Diagnosis
Procedure"
VEHICLE SPEED
[B2205]The abnormal vehicle speed signal is input from the ABS actuator and electric unit
(control unit) for 2 seconds or more.MWI-39, "Diagnosis
Procedure"
ENGINE SPEED
[B2267]If ECM continuously transmits abnormal engine speed signals for 2 seconds or
more.MWI-40, "Diagnosis
Procedure"
WATER TEMP
[B2268]If ECM continuously transmits abnormal engine coolant temperature signals for 60
seconds or more.MWI-41, "Diagnosis
Procedure"

MWI
BCM (BODY CONTROL MODULE)
MWI-99
< ECU DIAGNOSIS >
C
D
E
F
G
H
I
J
K
L
MB A
O
P
HIGH 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:0000000003900499
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

PCS
RELAY CONTROL SYSTEM
PCS-5
< FUNCTION DIAGNOSIS >[IPDM E/R]
C
D
E
F
G
H
I
J
K
L B A
O
P N
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 signalBCM (CAN) Headlamp low
 Headlamp highEXL-11
(Xenon headlamp)
EXL-200
(Halogen headlamp)
Front fog lamp relay Front fog light request signal BCM (CAN) Front fog lampEXL-17
(Xenon headlamp)
EXL-204
(Halogen headlamp)
Tail lamp relay Position light request signal BCM (CAN) Parking lamp
 Side marker lamp
 License plate lamp
Tail lampEXL-21
(Xenon headlamp)
EXL-208
(Halogen headlamp)
IlluminationsINL-12
 Front wiper relay
 Front wiper high relayFront wiper request signal BCM (CAN)
Front wiperWW-5
Front wiper auto stop signal Front wiper motor
Horn relay Theft warning horn request
signal
 Horn reminder signalBCM (CAN) Horn (low)
 Horn (high)SEC-17
 Starter relayNOTE
 Starter control relayStarter control relay signal BCM (CAN)
Starter motorSEC-104SEC-102
Steering lock unit condition
signalSteering lock unit
Starter relay control signal TCM
Steering lock relaySteering lock relay signal BCM (CAN)
Steering lock unitSEC-69
Steering lock unit condition
signalSteering lock unit
Control device (Detention
switch) signalControl device (Detention
switch)
A/C relayA/C compressor request sig-
nalECM (CAN)A/C compressor
(magnet clutch)HAC-36
(Without 7-inch dis-
play)
HAC-154
(With 7-inch display)
 Cooling fan relay-1
 Cooling fan relay-2
 Cooling fan relay-3Cooling fan speed request sig-
nalECM (CAN) Cooling fan motor-
1
 Cooling fan motor-
2EC-60
Headlamp washer relayHeadlamp washer request
signalBCM (CAN) Headlamp washerWW-10
Ignition relayIgnition switch ON signal BCM (CAN)
Ignition relay PCS-17Vehicle speed signal Combination meter (CAN)
Push-button ignition switch
signalPush-button ignition
switch

PCS-8
< FUNCTION DIAGNOSIS >[IPDM E/R]
SIGNAL BUFFER SYSTEM
SIGNAL BUFFER SYSTEM
System DiagramINFOID:0000000003773261
NOTE:
*: With BOSE audio system
System DescriptionINFOID:0000000003773262
 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 MWI-22, "
WARNING LAMPS/INDICATOR LAMPS : System Diagram".
 IPDM E/R reads the status of the hood switch and transmits the hood switch signal to BCM via CAN commu-
nication. Refer to SEC-17, "
System Diagram".
 IPDM E/R receives the rear window defogger control signal from BCM via CAN communication and trans-
mits it to ECM and AV control unit
* via CAN communication. Refer to DEF-4, "WITH AV CONTROL UNIT :
System Diagram" or DEF-6, "WITHOUT AV CONTROL UNIT : System Diagram".
NOTE:
*: With BOSE audio system
Component Parts LocationINFOID:0000000003773263
JPMIA1043GB
1. IPDM E/R
A. Engine room (LH)
JPMIA1037ZZ