Trans NISSAN TEANA 2008 Service Manual

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 >
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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 >
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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]
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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

PCS
POWER CONSUMPTION CONTROL SYSTEM
PCS-9
< FUNCTION DIAGNOSIS >[IPDM E/R]
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POWER CONSUMPTION CONTROL SYSTEM
System DiagramINFOID:0000000003857763
System DescriptionINFOID:0000000003773265
OUTLINE
 IPDM E/R incorporates a power consumption control function that reduces the power consumption accord-
ing to the vehicle status.
 IPDM E/R changes its status (control mode) with the sleep wake up signal received from BCM via CAN com-
munication.
Normal mode (wake-up)- CAN communication is normally performed with other control units.
- Individual unit control by IPDM E/R is normally performed.
Low power consumption mode (sleep)- Low power consumption control is active.
- CAN transmission is stopped.
SLEEP MODE ACTIVATION
 IPDM E/R judges that the sleep-ready conditions are fulfilled when the ignition switch is OFF and none of the
conditions below are present. Then it transmits a sleep-ready signal (ready) to BCM via CAN communica-
tion.
- Outputting signals to actuators
- Switches or relays operating
- Output requests are being received from control units via CAN communication.
 IPDM E/R stops CAN communication and enters the low power consumption mode when it receives a sleep
wake up signal (sleep) from BCM and the sleep-ready conditions are fulfilled.
WAKE-UP OPERATION
 IPDM E/R changes from the low power consumption mode to the normal mode when it receives a sleep
wake-up signal (wake up) from BCM or any of the following conditions is fulfilled. In addition, it transmits a
sleep-ready signal (not-ready) to BCM via CAN communication to report the CAN communication start.
- Ignition switch ON
- An output request is received from a control unit via CAN communication.
JPMIA1046GB

PCS-12
< FUNCTION DIAGNOSIS >[IPDM E/R]
DIAGNOSIS SYSTEM (IPDM E/R)
Concept of auto active test
 IPDM E/R starts the auto active test with the door switch signals transmitted by BCM via CAN communica-
tion. Therefore, the CAN communication line between IPDM E/R and BCM is considered normal if the auto
active test starts successfully.
 The auto active test facilitates troubleshooting if any systems controlled by IPDM E/R cannot be operated.
Diagnosis chart in auto active test mode
JPMIA1016GB
Symptom Inspection contents Possible cause
Any of the following components do not operate
 Parking lamps
 License plate lamps
Tail lamps
Front fog lamps
 Headlamp (HI, LO)
 Front wiperPerform auto active test.
Does the applicable system
operate?YES BCM signal input circuit
NO Lamp or motor
 Lamp or motor ground cir-
cuit
 Harness or connector be-
tween IPDM E/R and appli-
cable system
IPDM E/R
A/C compressor does not operatePerform auto active test.
Does the magnet clutch oper-
ate?YES A/C amp. signal input circuit
 CAN communication signal
between A/C amp. and
ECM
 CAN communication signal
between ECM and IPDM E/
R
NO Magnet clutch
 Harness or connector be-
tween IPDM E/R and mag-
net clutch
IPDM E/R
Oil pressure warning lamp does not operatePerform auto active test.
Does the oil pressure warning
lamp blink?YES Harness or connector be-
tween IPDM E/R and oil
pressure switch
 Oil pressure switch
IPDM E/R
NO CAN communication signal
between IPDM E/R and
BCM
 CAN communication signal
between BCM and combi-
nation meter
 Combination meter

PCS
DIAGNOSIS SYSTEM (IPDM E/R)
PCS-13
< FUNCTION DIAGNOSIS >[IPDM E/R]
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CONSULT-III Function (IPDM E/R)INFOID:0000000003773268
APPLICATION ITEM
CONSULT-III performs the following functions via CAN communication with IPDM E/R.
SELF DIAGNOSTIC RESULT
Refer to PCS-33, "DTCIndex".
DATA MONITOR
Monitor item
Cooling fan does not operatePerform auto active test.
Does the cooling fan operate?YES ECM signal input circuit
 CAN communication signal
between ECM and IPDM E/
R
NO Harness or connector be-
tween IPDM E/R and cool-
ing fan motor
 Harness or connector be-
tween IPDM E/R and cool-
ing fan relay
 Cooling fan motor
 Cooling fan relay
 IPDM E/R Symptom Inspection contents Possible cause
Diagnosis mode Description
Ecu Identification Allows confirmation of IPDM E/R part number.
Self Diagnostic Result Displays the diagnosis results judged by IPDM E/R.
Data Monitor Displays the real-time input/output data from IPDM E/R input/output data.
Active Test IPDM E/R can provide a drive signal to electronic components to check their operations.
CAN Diag Support Monitor The results of transmit/receive diagnosis of CAN communication can be read.
Monitor Item
[Unit]MAIN SIG-
NALSDescription
MOTOR FAN REQ
[1/2/3/4]×Displays the value of the cooling fan speed request signal received from ECM via
CAN communication.
AC COMP REQ
[Off/On]×Displays the status of the A/C compressor request signal received from ECM via
CAN communication.
TAIL&CLR REQ
[Off/On]×Displays the status of the position light request signal received from BCM via CAN
communication.
HL LO REQ
[Off/On]×Displays the status of the low beam request signal received from BCM via CAN
communication.
HL HI REQ
[Off/On]×Displays the status of the high beam request signal received from BCM via CAN
communication.
FR FOG REQ
[Off/On]×Displays the status of the front fog light request signal received from BCM via
CAN communication.
FR WIP REQ
[Stop/1LOW/Low/Hi]×Displays the status of the front wiper request signal received from BCM via CAN
communication.
WIP AUTO STOP
[STOP P/ACT P]×Displays the status of the front wiper auto stop signal judged by IPDM E/R.
WIP PROT
[Off/BLOCK]×Displays the status of the front wiper fail-safe operation judged by IPDM E/R.
IGN RLY1 -REQ
[Off/On]Displays the status of the ignition switch ON signal received from BCM via CAN
communication.

PCS-16
< COMPONENT DIAGNOSIS >[IPDM E/R]
U1000 CAN COMM CIRCUIT
COMPONENT DIAGNOSIS
U1000 CAN COMM CIRCUIT
DescriptionINFOID:0000000003773269
CAN (Controller Area Network) is a serial communication line for real time applications. It is an on-vehicle mul-
tiplex communication line with high data communication speed and excellent error detection ability. Modern
vehicle is equipped with many electronic control unit, and each control unit shares information and links with
other control units during operation (not independent). In CAN communication, control units are connected
with 2 communication lines (CAN-H line, CAN-L line) allowing a high rate of information transmission with less
wiring. Each control unit transmits/receives data but selectively reads required data only.
CAN Communication Signal Chart. Refer to LAN-22, "
CAN Communication Signal Chart".
DTC LogicINFOID:0000000003773270
DTC DETECTION LOGIC
Diagnosis ProcedureINFOID:0000000003773271
1.PERFORM SELF DIAGNOSTIC
1. Turn ignition switch ON and wait for 2 seconds or more.
2. Check “Self Diagnostic Result” of IPDM E/R.
Is
“CAN COMM CIRCUIT” displayed?
YES >> Refer to LAN-14, "Trouble Diagnosis Flow Chart".
NO >> Refer to GI-35, "
Intermittent Incident".
DTCCONSULT-III display
descriptionDTC Detection Condition Possible cause
U1000 CAN COMM CIRCUITWhen IPDM E/R cannot communicate CAN
communication signal continuously for 2
seconds or moreCAN communication system