horn NISSAN TEANA 2008 User Guide
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![NISSAN TEANA 2008 User Guide DLK-46
< FUNCTION DIAGNOSIS >[WITH INTELLIGENT KEY SYSTEM]
DIAGNOSIS SYSTEM (BCM)
TRUNK
TRUNK : CONSULT-III Function (BCM - TRUNK)INFOID:0000000003794767
BCM CONSULT-III FUNCTION
CONSULT-III performs NISSAN TEANA 2008 User Guide DLK-46
< FUNCTION DIAGNOSIS >[WITH INTELLIGENT KEY SYSTEM]
DIAGNOSIS SYSTEM (BCM)
TRUNK
TRUNK : CONSULT-III Function (BCM - TRUNK)INFOID:0000000003794767
BCM CONSULT-III FUNCTION
CONSULT-III performs](/img/5/57391/w960_57391-1261.png)
DLK-46
< FUNCTION DIAGNOSIS >[WITH INTELLIGENT KEY SYSTEM]
DIAGNOSIS SYSTEM (BCM)
TRUNK
TRUNK : CONSULT-III Function (BCM - TRUNK)INFOID:0000000003794767
BCM CONSULT-III FUNCTION
CONSULT-III performs the following functions via CAN communication with BCM.
Te s t i t e m D e s c r i p t i o n
BATTERY SAVERThis test is able to check interior room lamp operation.
The interior room lamp will be activated when “ON” on CONSULT-III screen is touched.
PW REMOTO DOWN SETNOTE:
This item is displayed, but cannot be used.
OUTSIDE BUZZERThis test is able to check Intelligent Key warning buzzer operation.
The Intelligent Key warning buzzer will be activated when “ON” on CONSULT-III screen is touched.
INSIDE BUZZERThis test is able to check warning chime in combination meter operation.
Take away warning chime sounds when “TAKE OUT” on CONSULT-III screen is touched.
Key warning chime sounds when “KEY” on CONSULT-III screen is touched.
P position warning chime sounds when “KNOB” on CONSULT-III screen is touched.
INDICATORThis test is able to check warning lamp operation.
“KEY” Warning lamp illuminates when “RED ON” on CONSULT-III screen is touched.
“KEY” Warning lamp blinks when “RED IND” on CONSULT-III screen is touched.
INT LAMPThis test is able to check interior room lamp operation.
The interior room lamp will be activated when “ON” on CONSULT-III screen is touched.
LCDThis test is able to check meter display information
Engine start information displays when “BP N” on CONSULT-III screen is touched.
Engine start information displays when “BP I” on CONSULT-III screen is touched.
Key ID warning displays when “ID NG” on CONSULT-III screen is touched.
Steering lock information displays when “ROTAT” on CONSULT-III screen is touched.
P position warning displays when “SFT P” on CONSULT-III screen is touched.
Intelligent Key insert information displays when “INSRT” on CONSULT-III screen is touched.
Intelligent Key low battery warning displays when “BATT” on CONSULT-III screen is touched.
Take away warning displays when “OUTKEY” on CONSULT-III screen is touched.
OFF position warning displays when “LK WN” on CONSULT-III screen is touched.
TRUNK/GLASS HATCHThis test is able to check trunk lid opener actuator open operation.
This actuator opens when “OPEN” on CONSULT-III screen is touched.
FLASHERThis test is able to check security hazard lamp operation.
The hazard lamps will be activated when “RH” or “LH”on CONSULT-III screen is touched.
HORNThis test is able to check horn operation.
The horn will be activated when “ON” on CONSULT-III screen is touched.
P RANGEThis test is able to check control device power supply
Control device power is supplied when “ON” on CONSULT-III screen is touched.
ENGINE SW ILLUMIThis test is able to check push-ignition switch illumination operation.
Push-ignition switch illumination illuminates when “ON” on CONSULT-III screen is touched.
LOCK INDICATORThis test is able to check LOCK indicator in push-ignition switch operation.
LOCK indicator in push-ignition switch illuminates when “ON” on CONSULT-III screen is touched.
ACC INDICATORThis test is able to check ACC indicator in push-ignition switch operation.
ACC indicator in push-ignition switch illuminates when “ON” on CONSULT-III screen is touched.
IGNITION ON INDThis test is able to check ON indicator in push-ignition switch operation.
ON indicator in push-ignition switch illuminates when “ON” on CONSULT-III screen is touched.
KEY SLOT ILLUMIThis test is able to check key slot illumination operation.
Key slot illumination illuminates when “ON” on CONSULT-III screen is touched.
TRUNK/BACK DOORThis test is able to check trunk lid opener actuator open operation.
This actuator opens when “OPEN” on CONSULT-III screen is touched.
Page 1307 of 5121
![NISSAN TEANA 2008 User Guide HORN FUNCTION
DLK-91
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DescriptionINFOID:0000000003794906
Perform answer-back for each operation with NISSAN TEANA 2008 User Guide HORN FUNCTION
DLK-91
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DescriptionINFOID:0000000003794906
Perform answer-back for each operation with](/img/5/57391/w960_57391-1306.png)
HORN FUNCTION
DLK-91
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DescriptionINFOID:0000000003794906
Perform answer-back for each operation with horn.
Component Function CheckINFOID:0000000003794907
1.CHECK FUNCTION
1. Select “HORN” in “ACTIVE TEST” mode with CONSULT-III.
2. Check the horn (high/low) operation.
Is the operation normal?
YES >> Horn function is OK.
NO >> Go to DLK-91, "
DiagnosisProcedure".
Diagnosis ProcedureINFOID:0000000003794908
1.CHECK HORN FUNCTION
Check horn function with horn switch
Do the horns sound?
YES >> GO TO 2.
NO >> Go to HRN-2, "
Wiring Diagram - HORN -".
2.CHECK HORN RELAY POWER SUPPLY
1. Turn ignition switch ON.
2. Perform “ACTIVE TEST” (“HORN”) with CONSULT-Ill.
3. Check voltage between horn relayconnector and ground.
Is the inspection result normal?
YES >> GO TO 4.
NO >> GO TO 3.
3.CHECK HORN RELAY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect IPDM E/R connector and horn relay.
3. Check continuity between IPDM E/R harness connector and horn relay connector.
4. Check continuity between driver seat control unit harness connector and ground.
Is the inspection result normal?
Test item Description
HORN ON Horn relay ON (for 20 ms)
Horn relay
GroundTe s t i t e mVoltage (V)
(Approx.)
Connector Terminal
E5 1 HORNONBattery voltage → 0 →
Battery voltage
Other than above Battery voltage
IPDM E/R Horn relay
Continuity
Connector Terminal Connector Terminal
E11 44 E5 1 Existed
IPDM E/R
GroundContinuity
Connector Terminal
E11 44 Not existed
Page 1308 of 5121
![NISSAN TEANA 2008 User Guide DLK-92
< COMPONENT DIAGNOSIS >[WITH INTELLIGENT KEY SYSTEM]
HORN FUNCTION
YES >> Replace IPDM E/R. Refer to PCS-34, "Removal and Installation".
NO >> Repair or replace harness.
4.CHECK INTERMITTENT IN NISSAN TEANA 2008 User Guide DLK-92
< COMPONENT DIAGNOSIS >[WITH INTELLIGENT KEY SYSTEM]
HORN FUNCTION
YES >> Replace IPDM E/R. Refer to PCS-34, "Removal and Installation".
NO >> Repair or replace harness.
4.CHECK INTERMITTENT IN](/img/5/57391/w960_57391-1307.png)
DLK-92
< COMPONENT DIAGNOSIS >[WITH INTELLIGENT KEY SYSTEM]
HORN FUNCTION
YES >> Replace IPDM E/R. Refer to PCS-34, "Removal and Installation".
NO >> Repair or replace harness.
4.CHECK INTERMITTENT INCIDENT
Refer to GI-35, "
Intermittent Incident".
Is the inspection result normal?
>> INSPECTION END
Page 1375 of 5121
![NISSAN TEANA 2008 User Guide HAZARD AND HORN REMINDER DOES NOT OPERATE
DLK-159
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DescriptionINFOID:000000 NISSAN TEANA 2008 User Guide HAZARD AND HORN REMINDER DOES NOT OPERATE
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HAZARD AND HORN REMINDER DOES NOT OPERATE
DescriptionINFOID:000000](/img/5/57391/w960_57391-1374.png)
HAZARD AND HORN REMINDER DOES NOT OPERATE
DLK-159
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HAZARD AND HORN REMINDER DOES NOT OPERATE
DescriptionINFOID:0000000003795000
NOTE:
Before performing the diagnosis following procedure, check “Work Flow”. Refer to DLK-7, "
Work Flow".
Check that vehicle is under the condition shown in “Conditions of vehicle” before starting diagnosis, and
check each symptom.
CONDITIONS OF VEHICLE (OPERATION CONDITIONS)
Ignition switch is in the OFF or LOCK position.
Intelligent Key is removed from key slot.
Diagnosis ProcedureINFOID:0000000003795001
1.CHECK “HAZARD ANSWER BACK” SETTING IN “WORK SUPPORT”
Check “HAZARD ANSWER BACK” setting in “WORK SUPPORT”.
Refer to DLK-43, "
INTELLIGENT KEY : CONSULT-III Function (BCM - INTELLIGENT KEY)".
Is the inspection result normal?
YES >> GO TO 2.
NO >> Set “HAZARD ANSWER BACK” setting in “WORK SUPPORT”.
2.CHECK “HORN WITH KEYLESS LOCK” SETTING IN “WORK SUPPORT”.
Check “HORN WITH KEYLESS LOCK” setting in “WORK SUPPORT”.
Refer to DLK-43, "
INTELLIGENT KEY : CONSULT-III Function (BCM - INTELLIGENT KEY)".
Is the inspection result normal?
YES >> GO TO 3.
NO >> Set “HORN WITH KEYLESS LOCK” setting in “WORK SUPPORT”.
3.CHECK HAZARD WARNING LAMP
Check hazard warning lamp.
Refer to DLK-96, "
ComponentFunctionCheck".
Is the inspection result normal?
YES >> GO TO 4.
NO >> Repair or replace the malfunctioning parts.
4.CHECK HORN
Check horn.
Refer to DLK-91, "
ComponentFunctionCheck".
Is the inspection result normal?
YES >> GO TO 5.
NO >> Repair or replace the malfunctioning parts.
5.CONFIRM THE OPERATION
Confirm the operation again.
Is the result normal?
YES >> Check intermittent incident. Refer to GI-35, "Intermittent Incident".
NO >> GO TO 1.
Page 1412 of 5121
![NISSAN TEANA 2008 User Guide DLK-196
< ON-VEHICLE REPAIR >[WITH INTELLIGENT KEY SYSTEM]
RADIATOR CORE SUPPORT
RADIATOR CORE SUPPORT
Exploded ViewINFOID:0000000003795070
Removal and InstallationINFOID:0000000003795071
REMOVAL
1. U NISSAN TEANA 2008 User Guide DLK-196
< ON-VEHICLE REPAIR >[WITH INTELLIGENT KEY SYSTEM]
RADIATOR CORE SUPPORT
RADIATOR CORE SUPPORT
Exploded ViewINFOID:0000000003795070
Removal and InstallationINFOID:0000000003795071
REMOVAL
1. U](/img/5/57391/w960_57391-1411.png)
DLK-196
< ON-VEHICLE REPAIR >[WITH INTELLIGENT KEY SYSTEM]
RADIATOR CORE SUPPORT
RADIATOR CORE SUPPORT
Exploded ViewINFOID:0000000003795070
Removal and InstallationINFOID:0000000003795071
REMOVAL
1. Use refrigerant collecting equipment to discharge the refrigerant. Refer to HA-24, "Collection and
Charge".
2. Remove front under cover. Refer to EXT-28, "
Removal and Installation".
3. Drain engine coolant from radiator. Refer to CO-8, "
Draining".
4. Remove front bumper fascia, energy absorber and bumper reinforcement. Refer to EXT-12, "
Removal
and Installation".
5. Remove mounting clips and remove air duct cover.
6. Remove hood lock opener and hood lock. Refer to DLK-220, "
Removal and Installation".
7. Disconnect connector of horn (HIGH/LOW), and then remove horn (HIGH/LOW). Refer to HRN-6,
"Removal and Installation".
8. Disconnect connector of gas sensor, and then remove gas sensor (with intelligent air conditioner system).
Refer to VTL-82, "
WITH INTELLIGENT AIR CONDITIONER SYSTEM : Removal and Installation".
9. Remove bumper retainer assembly. Refer to EXT-12, "
Removal and Installation".
10. Remove air guide (RH/LH).
11. Remove front combination lamp (RH/LH). Refer to EXL-181, "
Removal and Installation" (XENON TYPE)
or EXL-343, "
Removal and Installation" (HALOGEN TYPE).
12. Disconnect connector of ambient sensor. Refer to VTL-24, "
Removal and Installation" (WITHOUT 7 INCH
DISPLAY) or VTL-81, "
Removal and Installation" (WITH 7 INCH DISPLAY).
1. Radiator upper hose bracket 2. Hood switch bracket 3. Air duct cover
4. Air guide (RH/LH) 5. Radiator core support
: Pawl
JMKIA2382ZZ
Page 2061 of 5121
![NISSAN TEANA 2008 User Guide EXL-32
< FUNCTION DIAGNOSIS >[XENON TYPE]
DIAGNOSIS SYSTEM (IPDM E/R)
DIAGNOSIS SYSTEM (IPDM E/R)
Diagnosis DescriptionINFOID:0000000003894259
AUTO ACTIVE TEST
Description
In auto active test mode, th NISSAN TEANA 2008 User Guide EXL-32
< FUNCTION DIAGNOSIS >[XENON TYPE]
DIAGNOSIS SYSTEM (IPDM E/R)
DIAGNOSIS SYSTEM (IPDM E/R)
Diagnosis DescriptionINFOID:0000000003894259
AUTO ACTIVE TEST
Description
In auto active test mode, th](/img/5/57391/w960_57391-2060.png)
EXL-32
< FUNCTION DIAGNOSIS >[XENON TYPE]
DIAGNOSIS SYSTEM (IPDM E/R)
DIAGNOSIS SYSTEM (IPDM E/R)
Diagnosis DescriptionINFOID:0000000003894259
AUTO ACTIVE TEST
Description
In auto active test mode, the IPDM E/R sends a drive signal to the following systems to check their operation.
Oil pressure warning lamp
Front wiper (LO, HI)
Parking lamps
License plate lamps
Tail lamps
Front fog lamps
Headlamps (LO, HI)
A/C compressor (magnet clutch)
Cooling fan
Operation Procedure
1. Close the hood and lift the wiper arms from the windshield. (Prevent windshield damage due to wiper
operation)
NOTE:
When auto active test is performed with hood opened, sprinkle water on windshield beforehand.
2. Turn ignition switch OFF.
3. Turn the ignition switch ON, and within 20 seconds, press the driver door switch 10 times. Then turn the
ignition switch OFF.
CAUTION:
Close passenger door.
4. Turn the ignition switch ON within 10 seconds. After that the horn sounds once and the auto active test
starts.
5. The oil pressure warning lamp starts blinking when the auto active test starts.
6. After a series of the following operations is repeated 3 times, auto active test is completed.
NOTE:
When auto active test mode has to be cancelled halfway through test, turn ignition switch OFF.
CAUTION:
If auto active test mode cannot be actuated, check door switch system. Refer to DLK-57,
"ComponentFunctionCheck".
Do not start the engine.
Inspection in Auto Active Test Mode
When auto active test mode is actuated, the following 5 steps are repeated 3 times.
Operation
sequenceInspection location Operation
A Oil pressure warning lamp Blinks continuously during operation of auto active test
1 Front wiper LO for 5 seconds → HI for 5 seconds
2 Parking lamps
License plate lamps
Tail lamps
Front fog lamps10 seconds
3 Headlamps LO ⇔ HI 5 times
4A/C compressor (magnet clutch) ON ⇔ OFF 5 times
5 Cooling fan LO for 5 seconds → MID for 3 seconds → HI for 2 seconds
Page 2064 of 5121
![NISSAN TEANA 2008 User Guide DIAGNOSIS SYSTEM (IPDM E/R)
EXL-35
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Te s t i t e m
IGN RLY
[Off/On]×Displays the status of the ignition relay judged by NISSAN TEANA 2008 User Guide DIAGNOSIS SYSTEM (IPDM E/R)
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IGN RLY
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DIAGNOSIS SYSTEM (IPDM E/R)
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Te s t i t e m
IGN RLY
[Off/On]×Displays the status of the ignition relay judged by IPDM E/R.
PUSH SW
[Off/On]Displays the status of the push-button ignition switch judged by IPDM E/R.
INTER/NP SW
[Off/On]Displays the status of the shift position judged by IPDM E/R.
ST RLY CONT
[Off/On]Displays the status of the starter relay status signal received from BCM via CAN
communication.
IHBT RLY -REQ
[Off/On]Displays the status of the starter control relay signal received from BCM via CAN
communication.
ST/INHI RLY
[Off/ ST /INHI/UNKWN]Displays the status of the starter relay and starter control relay judged by IPDM
E/R.
DETENT SW
[Off/On]Displays the status of the control device (detention switch) judged by IPDM E/R.
S/L RLY -REQ
[Off/On]Displays the status of the steering lock relay signal received from BCM via CAN
communication.
S/L STATE
[LOCK/UNLOCK/UNKWN]Displays the status of the steering lock judged by IPDM E/R.
DTRL REQ
[Off]NOTE:
The item is indicated, but not monitored.
OIL P SW
[Open/Close]Displays the status of the oil pressure switch judged by IPDM E/R.
HOOD SW
[Off/On]Displays the status of the hood switch judged by IPDM E/R.
HL WASHER REQ
[Off]Display the status of the headlamp washer request signal received from BCM via
CAN communication.
THFT HRN REQ
[Off/On]Displays the status of the theft warning horn request signal received from BCM
via CAN communication.
HORN CHIRP
[Off/On]Displays the status of the horn reminder signal received from BCM via CAN com-
munication.
CRNRNG LMP REQ
[Off]NOTE:
The item is indicated, but not monitored. Monitor Item
[Unit]MAIN SIG-
NALSDescription
Test item Operation Description
CORNERING LAMPOff
NOTE:
The item is indicated, but cannot be tested. LH
RH
HORN On Operates horn relay for 20 ms.
FRONT WIPEROff OFF
Lo Operates the front wiper relay.
Hi Operates the front wiper relay and front wiper high relay.
MOTOR FAN1OFF
2 Operates the cooling fan relay-1.
3 Operates the cooling fan relay-2.
4 Operates the cooling fan relay-2 and cooling fan relay-3.
HEAD LAMP WASHER On Operates the headlamp washer relay for 1 s.
Page 2172 of 5121
![NISSAN TEANA 2008 User Guide IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
EXL-143
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ST/INHI RLYIgnition switch ON Off
At engine cranking INHI → ST
Th NISSAN TEANA 2008 User Guide IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
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At engine cranking INHI → ST
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IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
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ST/INHI RLYIgnition switch ON Off
At engine cranking INHI → ST
The status of starter relay or starter control relay cannot be recognized by
the battery voltage malfunction, etc. when the starter relay is ON and the
starter control relay is OFFUNKWN
DETENT SWIgnition switch ON Press the selector button with se-
lector lever in P position
Selector lever in any position oth-
er than POff
Release the selector button with selector lever in P position On
S/L RLY -REQNone of the conditions below are present Off
Open the driver door after the ignition switch is turned OFF (for a few
seconds)
Press the push-button ignition switch when the steering lock is activat-
edOn
S/L STATESteering lock is activated LOCK
Steering lock is deactivated UNLOCK
[DTC: B210A] is detected UNKWN
DTRL REQNOTE:
The item is indicated, but not monitored.Off
OIL P SWIgnition switch OFF, ACC or engine running Open
Ignition switch ON Close
HOOD SWClose the hood Off
Open the hood On
HL WASHER REQNot operating Off
Headlamp washer operating On
THFT HRN REQNot operating Off
Horn is activated with vehicle security (theft warning) system On
HORN CHIRPNot operating Off
Door locking with Intelligent Key (horn chirp mode)
Door locking with key fob (horn chirp mode)On
CRNRNG LMP REQNOTE:
The item is indicated, but not monitored.Off Monitor Item Condition Value/Status
Page 2175 of 5121
![NISSAN TEANA 2008 User Guide EXL-146
< ECU DIAGNOSIS >[XENON TYPE]
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
28
(SB)GroundPush-button ignition
switchInputPress the push-button ignition switch 0 V
Release the p NISSAN TEANA 2008 User Guide EXL-146
< ECU DIAGNOSIS >[XENON TYPE]
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
28
(SB)GroundPush-button ignition
switchInputPress the push-button ignition switch 0 V
Release the p](/img/5/57391/w960_57391-2174.png)
EXL-146
< ECU DIAGNOSIS >[XENON TYPE]
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
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(SB)GroundPush-button ignition
switchInputPress the push-button ignition switch 0 V
Release the push-button ignition switch Battery voltage
30
(BR)Ground Starter relay control InputIgnition
switch ONSelector lever in any posi-
tion other than P or N0 V
Selector lever P or N Battery voltage
32
(V)GroundSteering lock unit condi-
tion-1InputSteering lock is activated 0 V
Steering lock is deactivated Battery voltage
33
(G)GroundSteering lock unit condi-
tion-2InputSteering lock is activated Battery voltage
Steering lock is deactivated 0 V
34
(O)Ground Cooling fan relay-3 control InputCooling fan stopped Battery voltage
Cooling fan at HI operation 0 V
35
(P)GroundCooling fan relay-1 power
supplyInputCooling fan stopped Battery voltage
Cooling fan at LO operation 6.0 V
36
(G)Ground Battery power supply Input Ignition switch OFF Battery voltage
38
(GR)GroundCooling fan relay-1 power
supplyOutputCooling fan not operating 0 V
Cooling fan at LO operation 6.0 V
39
(P)—CAN-LInput/
Output——
40
(L)—CAN-HInput/
Output——
41
(B)Ground Ground — Ignition switch ON 0 V
42
(SB)Ground Cooling fan relay-2 control InputCooling fan stopped Battery voltage
Cooling fan MID operating
Cooling fan HI operating0 V
43
(Y)GroundControl device
(Detention switch)InputIgnition
switch ONPress the selector button
(selector lever P)Battery voltage
Selector lever in any po-
sition other than P
Release the selector
button (selector lever P)0 V
44
(G)Ground Horn relay control InputThe horn is deactivated Battery voltage
The horn is activated 0 V
45
(O)Ground Horn switch InputThe horn is deactivated Battery voltage
The horn is activated 0 V
46
(BR)Ground Starter relay control InputIgnition
switch ONSelector lever in any posi-
tion other than P or N0 V
Selector lever P or N Battery voltage
48
(Y/R)Ground A/C relay power supply OutputEngine
runningA/C switch OFF 0 V
A/C switch ON
(A/C compressor is oper-
ating)Battery voltage Te r m i n a l N o .
(Wire color)Description
ConditionVa l u e
(Approx.)
Signal nameInput/
Output +−
Page 2183 of 5121
![NISSAN TEANA 2008 User Guide EXL-154
< ECU DIAGNOSIS >[XENON TYPE]
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
If No CAN Communication Is Available With BCM
IGNITION RELAY MALFUNCTION DETECTION FUNCTION
IPDM E/ NISSAN TEANA 2008 User Guide EXL-154
< ECU DIAGNOSIS >[XENON TYPE]
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
If No CAN Communication Is Available With BCM
IGNITION RELAY MALFUNCTION DETECTION FUNCTION
IPDM E/](/img/5/57391/w960_57391-2182.png)
EXL-154
< ECU DIAGNOSIS >[XENON TYPE]
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
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.
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 seconds activation and 20 seconds stop five times.
Control part Fail-safe operation
Cooling fan Turns ON the cooling fan relay-2 and the cooling fan relay-3 when ignition switch is
turned ON (Cooling fan operates at HI)
Turns OFF the cooling fan relay-1, the cooling fan relay-2 and the cooling fan relay-3
when the ignition switch is turned OFF (Cooling fan does not operate)
A/C compressor A/C relay OFF
Alternator Outputs the power generation command signal (PWM signal) 0%
Control part Fail-safe 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
Illuminations
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.
Front fog lamps Front fog lamp relay OFF
Horn Horn OFF
Ignition relay The status just before activation of fail-safe is maintained.
Starter motor Starter control relay OFF
Steering lock unit Steering lock relay OFF
Headlamp washer relay Headlamp washer relay OFF
Voltage judgment
IPDM E/R judgment Operation
Ignition relay contact sideIgnition relay excitation coil
side
ON ON Ignition relay ON normal —
OFF OFF Ignition relay OFF normal —
ON OFF Ignition relay ON stuck Detects DTC “B2098: IGN RELAY ON”
Turns ON the tail lamp relay for 10 min-
utes
OFF ON Ignition relay OFF stuck Detects DTC “B2099: IGN RELAY OFF”