relay NISSAN TEANA 2008 Service Manual

FRONT WIPER AND WASHER SYSTEM
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 When the front wiper request signal is stopped, IPDM E/R turns ON the front wiper relay until the front wiper
motor returns to the stop position.
NOTE:
 BCM stops the transmitting of the front wiper request signal when the ignition switch is OFF.
 IPDM E/R turns the front wiper relay OFF when the ignition switch is OFF.
FRONT WIPER OPERATION LINKED WITH WASHER
 BCM transmits the front wiper request signal (LO) to IPDM E/R with CAN communication according to the
washer linked operating condition of the front wiper.
 BCM transmits the front wiper request signal (LO) so that the front wiper operates approximately 3 times
when the front washer switch OFF is detected.
Washer linked operating condition of front wiper
- Ignition switch ON
- Front washer switch ON (0.4 second or more)
 IPDM E/R turns ON the integrated front wiper relay according to the front wiper request signal (LO).
 The washer pump is grounded through the combination switch with the front washer switch ON.
FRONT WIPER FAIL−SAFE OPERATION
IPDM E/R performs the fail-safe function when the front wiper auto stop circuit is malfunctioning. Refer to
PCS-31, "
Fail-safe".
JPLIA0410GB

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FRONT WIPER AND WASHER SYSTEM
Component Parts Location
INFOID:0000000003774862
Component DescriptionINFOID:0000000003774863
1. Combination switch 2. Combination meter 3. Washer pump
4. IPDM E/R 5. Front wiper motor 6. BCM
A. Radiator core support (RH) B. Engine room (left side) C. Cowl top, left side of engine room
D. Behind combination meter
JPLIA1146ZZ
Part Description
BCM Judges each switch status by the combination switch reading function.
 Requests (with CAN communication) the front wiper relay and the front wiper high relay ON to
IPDM E/R.
IPDM E/R Controls the integrated relay according to the request (with CAN communication) from BCM.
 Performs the auto stop control of the front wiper.

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HEADLAMP WASHER SYSTEM
HEADLAMP WASHER SYSTEM
System DiagramINFOID:0000000003771163
System DescriptionINFOID:0000000003771164
OUTLINE
The headlamp washer is controlled by each function of BCM and IPDM E/R.
Control by BCM Combination switch reading function
 Headlamp washer control function
Control by IPDM E/R Relay control function
HEADLAMP WASHER BASIC OPERATION
 BCM detects the combination switch condition by the combination switch reading function.
 BCM transmits the headlamp washer request signal to IPDM E/R with CAN communication depending on
each operating condition of the headlamp washer.
Operating conditions (The first time)
- Ignition switch ON
- Headlamps ON (PASS excluded)
- Front washer switch ON at first time.
Operating conditions (From the second time)- Ignition switch ON
- Headlamps ON (PASS excluded)
- Front washer switch ON at fifth time after the first time.
JPLIA0152GB
JPLIA0177GB

HEADLAMP WASHER SYSTEM
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 IPDM E/R turns ON/OFF the headlamp washer relay by receiving the headlamp washer request signal, and
controls the headlamp washer twice.
Component Parts LocationINFOID:0000000003771165
Component DescriptionINFOID:0000000003771166
1. Combination switch 2. Headlamp washer pump 3. IPDM E/R
4. BCM
A. Radiator core support (RH) B. Engine room (left side) C. Behind combination meter
JPLIA1145ZZ
Part Description
BCM Judges each switch status by the combination switch reading function.
 Requests (with CAN communication) the headlamp washer relay ON to IPDM E/R.
IPDM E/R Controls the integrated relay according to the request (with CAN communication) from BCM.
Combination switch
(Wiper & washer switch)Refer to BCS-8, "
System Diagram".

DIAGNOSIS SYSTEM (IPDM E/R)
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CONSULT-III Function (IPDM E/R)INFOID:0000000003941293
APPLICATION ITEM
CONSULT-III performs the following functions via CAN communication with IPDM E/R.
SELF DIAGNOSTIC RESULT
Refer to WW-89, "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.

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DIAGNOSIS SYSTEM (IPDM E/R)
ACTIVE TEST
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.

DIAGNOSIS SYSTEM (IPDM E/R)
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EXTERNAL LAMPSOff OFF
TAIL Operates the tail lamp relay.
Lo Operates the headlamp low relay.
HiOperates the headlamp low relay and ON/OFF the headlamp high relay at 1 sec-
ond intervals.
Fog Operates the front fog lamp relay. Test item Operation Description

HEADLAMP WASHER RELAY
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HEADLAMP WASHER RELAY
Component InspectionINFOID:0000000003761595
1.CHECK HEADLAMP WASHER RELAY
1. Turn the ignition switch OFF.
2. Remove headlamp washer relay.
3. Apply battery voltage to headlamp washer relay between terminals 1 and 2.
4. Check continuity of headlamp washer relay.
Does continuity exist?
YES >> Headlamp washer relay is normal.
NO >> Replace headlamp washer relay.
Headlamp washer relay Condition
Continuity
Terminal Voltage
35Apply Existed
Not Apply Not existed

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HEADLAMP WASHER CIRCUIT
HEADLAMP WASHER CIRCUIT
Component Function CheckINFOID:0000000003761599
1.CHECK HEADLAMP WASHER OPERATION
CONSULT-III ACTIVE TEST
1. Select “HEAD LAMP WASHER” of IPDM E/R active test item.
2. With operating the test item, check headlamp operation.
Is headlamp washer operation normally?
YES >> Headlamp washer circuit is normal.
NO >> Refer to WW-32, "
Diagnosis Procedure".
Diagnosis ProcedureINFOID:0000000003761600
1.CHECK HEADLAMP WASHER FUSIBLE LINK
1. Turn the ignition switch OFF.
2. Check that the headlamp washer 40A fusible link (#J) is not fusing.
Is the fusible link fusing?
YES >> Replace the fusible link after repairing the applicable circuit.
NO >> GO TO 2.
2.CHECK HEADLAMP WASHER RELAY POWER SUPPLY
1. Remove headlamp washer relay.
2. Check voltage between headlamp washer harness connector and ground.
Is the measurement value normal?
YES >> GO TO 3.
NO >> Repair harness or connector.
3.CHECK HEADLAMP WASHER RELAY
Check headlamp washer relay. Refer to WW-31, "
Component Inspection".
Is the headlamp washer relay normal?
YES >> GO TO 4.
NO >> Replace headlamp washer relay.
4.CHECK HEADLAMP WASHER RELAY CONTROL SIGNAL OUTPUT
CONSULT-III ACTIVE TEST
1. Install headlamp washer relay.
2. Turn the ignition switch ON.
3. Select “HEAD LAMP WASHER” of IPDM E/R active test item.
4. With operating the test item, check voltage between IPDM E/R harness connector and ground.On :Headlamp washer ON operation
Off :Stop the headlamp washer.
Te r m i n a l s
Voltage (Approx.) (+) (−)
Headlamp washer relay
Ground Connector Terminal
E3332
Battery voltage
5

HEADLAMP WASHER CIRCUIT
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Is the measurement value normal?
YES >> GO TO 7.
Fixed at 0 V >> GO TO 5.
Fixed at battery voltage >>Replace IPDM E/R.
5.CHECK HEADLAMP WASHER RELAY CONTROL SIGNAL OPEN CIRCUIT
1. Remove headlamp washer relay.
2. Disconnect IPDM E/R harness connector.
3. Check continuity between IPDM E/R harness connector and headlamp washer relay harness connector.
Does continuity exist?
YES >> GO TO 6.
NO >> Repair the harness or connector.
6.CHECK HEADLAMP WASHER RELAY CONTROL SIGNAL SHORT CIRCUIT
Check continuity between IPDM E/R harness connector and ground.
Does continuity exist?
YES >> Repair the harness or connector.
NO >> Replace IPDM E/R.
7.CHECK HEADLAMP WASHER PUMP OPEN CIRCUIT
1. Remove headlamp washer relay.
2. Disconnect headlamp washer pump connector.
3. Check continuity between headlamp washer relay harness connector and headlamp washer pump har-
ness connector.
Does continuity exist?
YES >> GO TO 8.
NO >> Repair the harness or connector.
8.CHECK HEADLAMP WASHER PUMP (GND) OPEN CIRCUIT
Check continuity headlamp washer pump harness connector and ground.
Te r m i n a l s
Te s t i t e m
Voltage (Approx.) (+) (−)
IPDM E/R
GroundHEAD LAMP
WASHER
Connector Terminal
E10 17On 0 V
Off Battery voltage
IPDM E/R Headlamp washer relay
Continuity
Connector Terminal Connector Terminal
E10 17 E333 1 Existed
IPDM E/R
GroundContinuity
Connector Terminal
E10 17 Not existed
Headlamp washer relay Headlamp washer pump
Continuity
Connector Terminal Connector Terminal
E333 3 E334 1 Existed