Power NISSAN TEANA 2003 Service Manual

REAR WINDOW DEFOGGER
GW-55
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through 15A fuse [No. 17, located in the fuse block (J/B)]

to BCM terminal 42.
With the ignition switch turned to ON or START position,
Power is supplied

through 10A fuse [No. 1, located in the fuse block (J/B)]

to BCM terminal 38.

through 10A fuse [No.12, located in the fuse block (J/B)]

to rear window defogger relay terminal 1.

through 10A fuse [No. 6, located in the fuse block (J/B)]

to A/C and AV switch terminal 7.
Ground is supplied

to BCM terminal 52

through grounds M71 and M72.

to A/C and AV switch terminal 13

through grounds M71 and M72.

to IPDM E/R terminals 38 and 60

through grounds E1 and E31.
When rear window defogger switch in A/C and AV switch is turned to ON,
Ground is supplied

to BCM terminal 9

through A/C and AV switch terminal 9

through A/C and AV switch terminal 13

through grounds M71 and M72.
Then rear window defogger switch is illuminated.
Then BCM recognizes that rear window defogger switch is turned to ON.
Then it sends rear window defogger switch signals to IPDM E/R and display unit (with out display control unit)
or display control unit (with display control unit) via DATA LINE (CAN H, CAN L).
When display unit or display control unit receives rear window defogger switch signals, indicator is displayed
on the screen.
When IPDM E/R receives rear window defogger switch signals,
Ground is supplied

to rear window defogger relay terminal 2

through IPDM E/R terminal 52

through IPDM E/R terminal 38 and 60

through grounds E1 and E31.
and then rear window defogger relay is activated.
When rear window defogger relay is turned ON,
Signals are transmitted,

through rear window defogger relay terminals 5

to rear window defogger terminal 1.
Rear window defogger terminal 2 is grounded through ground B253.
With power and ground supplied, rear window defogger filaments heat and defog the rear window.

through rear window defogger relay terminals 7

to door mirror defogger (driver side and passenger side) terminal 2.
Door mirror defogger (driver side and passenger side) terminal 3 are grounded through grounds M71 and
M72.
With power and ground supplied, door mirror defogger filaments heat and defog the mirror.

GW-62
REAR WINDOW DEFOGGER

Terminal and Reference Value for BCMBIS00102
Terminal and Reference Value for IPDM E/RBIS00103
Work FlowBIS00104
1. Check the symptom and customer's requests.
2. Understand the outline of system. Refer to GW-54, "
System Description" .
3. According to the trouble diagnosis chart, repair or replace the cause of the malfunction.
Refer to GW-63, "
Trouble Diagnoses Symptom Chart" .
4. Does rear window defogger operate normally?
YES: GO TO 5.
NO: GO TO 3.
5. INSPECTION END
Te r m i -
nalWire
colorItemSignal
Input/
OutputConditionVoltage [V]
(Approx.)
9GR/LRear window defogger
switch signalInputWhen rear window defogger switch is pressed. 0
When rear window defogger switch is OFF. 5
38 R Ignition switch ON or START Input Ignition switch (ON or START position) Battery voltage
39 L CAN− HInput/
Output——
40 P CAN− LInput/
Output——
42 Y/R Power source (Fuse) Input — Battery voltage
52 B Ground — — 0
55 W/B Power source (Fusible link) Input — Battery voltage
Te r m i -
nalWire
colorItemSignal
Input/
OutputConditionVoltage [V]
(Approx.)
6 L Battery power supply Output — Battery voltage
38 B Ground (Power) Output — 0
48 L CAN− HInput/
Output——
49 P CAN− LInput/
Output——
52 G/RRear window defogger relay
control signalInputWhen rear window defogger switch is ON. 0
When rear window defogger switch is OFF. Battery voltage
60 B Ground (Signal) — — 0

REAR WINDOW DEFOGGER
GW-63
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CONSULT-II Function (BCM)BIS00105
CONSULT-II can display each diagnostic item using the diagnostic test modes shown following.
CONSULT-II Start procedureBIS0016N
Refer to GI-34, "CONSULT-II Start Procedure"
CONSULT-II Application ItemsBIS0016O
DATA MONITOR
Display Item List
ACTIVE TEST
Display Item List
Trouble Diagnoses Symptom ChartBIS00106
Check that other systems using the signal of the following systems operate normally.
BCM diagnostic test itemCheck item,
diagnostic test modeContent
Rear defoggerData monitor Displays the input data of BCM in real time.
Active test Gives a drive signal to a load to check the operation.
Monitor item Content
IGN ON SW indicates [ON/OFF] condition of ignition switch in ON position.
ACC ON SW indicates [ON/OFF] condition of ignition switch in ACC position.
REAR DEF SW indicates [ON/OFF] condition of rear window defogger switch.
Test item Content
REAR DEFOGGER This test is able to check rear window defogger operation.
Symptom Diagnoses / service procedureReference
page
Rear window defogger and door mirror defogger do not
operate.1. Check BCM power supply and ground circuit.GW-64
2.Check IPDM E/R auto active test.PG-21
3. Check rear window defogger switch circuit.GW-65
4. Check rear window defogger power supply circuit.GW-66
5. Replace IPDM E/R.PG-28
Rear window defogger does not operated.1. Check BCM power supply and ground circuit.GW-64
2. Check IPDM E/R auto active test.PG-21
3.Check rear window defogger switch circuit.GW-65
4. Check rear window defogger power supply circuit.GW-66
5. Check rear window defogger circuit.GW-67
6. Check filament.GW-72
7. Replace IPDM E/R.PG-28
Rear window defogger does not operate but door mirror
defoggers operate.1. Check rear window defogger circuit.GW-67
2. Check filament.GW-72
Both of door mirror defoggers do not operated but rear
window defogger operate.1. Check door mirror defogger power supply circuit.GW-68
Driver side door mirror defogger does not operated. 1. Check driver side door mirror defogger circuit.GW-70
Passenger side door mirror defogger does not operated. 1. Check passenger side door mirror defogger circuit.GW-71

GW-64
REAR WINDOW DEFOGGER

Check BCM Power Supply and Ground Circuit BIS00107
First perform the “SELF-DIAG RESULTS” in “BCM” with CONSULT-II, when perform the each trouble
diagnosis. Refer to BCS-14, "
CAN Communication Inspection Using CONSULT-II (Self-Diagnosis)" .
1. CHECK FUSE

10A fuse [No.1, located in fuse block (J/B)]

15A fuse [No.17, located in fuse block (J/B)]

50A fusible link (letter M, located in the fuse and fusible link box).
NOTE:
Refer to GW-54, "
Component Parts and Harness Connector Location" .
OK or NG
OK >> GO TO 2.
NG >> If fuse is blown out, be sure to eliminate cause of malfunction before installing new fuse. Refer to
PG-3, "
POWER SUPPLY ROUTING CIRCUIT" .
2. CHECK POWER SUPPLY CIRCUIT
Check voltage between BCM connector and ground.
OK or NG
OK >> GO TO 3.
NG >> Check BCM power supply circuit for open or short.
3. CHECK GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect BCM connector.
3. Check continuity between BCM connector M4 terminal 52 and
ground.
OK or NG
OK >> Power supply and ground circuit are OK.
NG >> Check BCM ground circuit for open.
ConnectorTerminal
Condition of ignition
switchVoltage [V]
(Approx.)
(+) (-)
M338 (R)
GroundON
Battery voltage 42 (LG)
OFF
M4 55 (W/B)
PIIB1097E
52 (B) – Ground : Continuity should exist.
PIIB1099E

GW-66
REAR WINDOW DEFOGGER

3. CHECK BCM OUTPUT SIGNAL
1. Connect BCM connector.
2. Turn ignition switch ON.
3. Check voltage between BCM connector M3 terminal 9 and
ground.
OK or NG
OK >> Replace A/C and AV switch.
NG >> Replace BCM.
Check Rear Window Defogger Power Supply Circuit BIS00109
1. CHECK FUSE

10A fuse [No.12, located in fuse block (J/B)]

20A fuse (No.75, located in the IPDM E/R)
NOTE:
Refer to GW-54, "
Component Parts and Harness Connector Location" .
OK or NG
OK >> GO TO 2.
NG >> If fuse is blown out, be sure to eliminate cause of malfunction before installing new fuse, refer to
PG-3, "
POWER SUPPLY ROUTING CIRCUIT" .
2. CHECK POWER SUPPLY CIRCUIT
1. Remove rear window defogger relay.
2. Turn ignition switch ON.
3. Check voltage between rear window defogger relay connector
and ground.
OK or NG
OK >> GO TO 3.
NG >> Repair or replace harness between fuse block (J/B) and
rear window defogger relay.
3. CHECK REAR WINDOW DEFOGGER RELAY
Check continuity between rear window defogger terminals 3 and 5.
OK or NG
OK >> GO TO 4.
NG >> Replace rear window defogger relay.9 (GR/L) – Ground : Approx. 5V
PIIA6208E
1 (G) – Ground : Battery voltage
3 (L) – Ground : Battery voltage
PIIB1098E
Terminal Condition Continuity
3512V direct current supply
between terminals 1 and 2Ye s
No current supply No
SEC202B

REAR WINDOW DEFOGGER
GW-67
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4. CHECK REAR WINDOW DEFOGGER RELAY GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Install rear window defogger relay.
3. Turn ignition switch ON.
4. Check voltage between rear defogger relay connector and
ground.
OK or NG
OK >> Rear window defogger power supply circuit is OK.
NG >> GO TO 5.
5. CHECK HARNESS CONTINUITY
1. Turn ignition switch OFF.
2. Disconnect IPDM E/R connector and rear window defogger relay.
3. Check continuity between IPDM E/R connector E9 terminal 52
and rear window defogger relay connector B203 terminal 2.
OK or NG
OK >> Check harness connection.

If it is OK, replace IPDM E/R.

If it is NG, repair or replace malfunction part.
NG >> Repair or replace harness.
Check Rear Window Defogger Circuit BIS0010A
1. CHECK POWER SUPPLY CIRCUIT 1
1. Turn ignition switch OFF.
2. Disconnect rear window defogger connector.
3. Turn ignition switch ON.
4. Check voltage between rear window defogger connector and
ground.
OK or NG
OK >> GO TO 2.
NG >> GO TO 3.
ConnectorTerminals (Wire color)
ConditionVoltage [V]
(Approx.)
(+) (-)
B203 2 (G/R) GroundRear window defogger
switch ON0
Rear window defogger
switch OFFBattery
voltage
PIIB1282E
52 (G/R) – 2 (G/R) : Continuity should exist.
PIIA6211E
ConnectorTerminal (Wire color)
ConditionVoltage [V]
(Approx.)
(+) (–)
B251 1(G) GroundRear window defogger
switch ON Battery voltage
Rear window defogger
switch OFF0
PIIA4234E

GW-68
REAR WINDOW DEFOGGER

2. CHECK GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Check continuity between rear window defogger connector
B252 terminal 2 and ground.
OK or NG
OK >> Check filament. Refer to GW-72, "Check Filament"

If filament is OK, check condition of harness and con-
nector.

If filament is NG, repair filament.
NG >> Repair or replace harness.
3. CHECK HARNESS CONTINUITY 1
1. Turn ignition switch OFF.
2. Disconnect rear window defogger relay connector and condenser connector.
3. Check continuity between rear window defogger relay connector
B203 terminal 5 and condenser connector B216 terminal 1.
OK or NG
OK >> GO TO 4.
NG >> Repair or replace harness.
4. CHECK HARNESS CONTINUITY 2
1. Check continuity between condenser connector B216 terminal 1
and rear window defogger connector B251 terminal 1.
2. Check continuity between condenser connector B216 terminal 1
and ground.
OK or NG
OK >> Check condition of harness and connector.
NG >> Replace condenser.
Check Door Mirror Defogger Power Supply Circuit BIS0010B
1. CHECK FUSE

Check 10A fuse [No.32, located in fuse block (J/B)]
NOTE:
Refer to GW-54, "
Component Parts and Harness Connector Location"
OK or NG
OK >> GO TO 2.
NG >> If fuse is blown, be sure to eliminate cause of malfunction before installing new fuse. Refer to PG-
3, "POWER SUPPLY ROUTING CIRCUIT"
2 (B) − Ground : Continuity should exist.
PIIA4235E
5 (G) – 1 (G) : Continuity should exist.
PIIB1100E
1 (G) – 1 (B) : Continuity should exist.
1 (G) – Ground : Continuity should not exist.
PIIB1101E

REAR WINDOW DEFOGGER
GW-69
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2. CHECH REAR WINDOW DOFOGGER RELAY POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Remove rear window defogger relay.
3. Turn ignition switch ON.
4. Check voltage between rear window defogger relay harness
connector B203 terminal 6 and ground.
OK or NG
OK >> GO TO 3.
NG >> Repair or replace harness.
3. CHECK REAR WINDOW DEFOGGER RELAY
Check continuity between rear window defogger relay terminal 6 and 7.
OK or NG
OK >> GO TO 4.
NG >> Replace rear window defogger relay.
4. CHECK HARENSS CONTINUITY
1. Turn ignition switch OFF.
2. Disconnect door mirror connector.
3. Check continuity between door mirror D3 (driver side), D33
(passenger side) terminal 2 and rear window defogger relay
connector B203 terminal 7.
OK or NG
OK >> Check the condition of the harness and the connector.
NG >> Repair or replace harness.6 (W) - Ground : Battery voltage
PIIA9561E
Terminal Condition Continuity
6712V direct current supply
between terminals 1 and 2Ye s
No current supply No
SEC202B
2 (L/B) - 7 (L/B) : Continuity should exist.
PIIB2181E

GW-70
REAR WINDOW DEFOGGER

Check Driver Side Door Mirror Defogger Circuit BIS0010C
1. CHECK DOOR MIRROR DEFOGGER POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect door mirror (driver side) connector.
3. Turn ignition switch ON.
4. Check voltage between door mirror (driver side) connector and
ground.
OK or NG
OK >> GO TO 2.
NG >> Repair or replace harness.
2. CHECK DOOR MIRROR DEFOGGER GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Check continuity between door mirror (driver side) connector D3
terminal 3 and ground.
OK or NG
OK >> GO TO 3.
NG >> Repair or replace harness.
3. CHECK DOOR MIRROR DEFOGGER
Check continuity between door mirror (driver side) terminal 2 and 3.
OK or NG
OK >> Check the condition of the harness and the connector.
NG >> Replace door mirror (driver side).
ConnectorTerminal (Wire color)
Condition of rear win-
dow defogger switchVoltage (V)
(Approx.)
(+) (–)
D3 2 (L/B) GroundON Battery voltage
OFF 0
PIIB2182E
3 (B) – Ground : Continuity should exist.
PIIB2183E
2 – 3 : Continuity should exist.
PIIB2184E

REAR WINDOW DEFOGGER
GW-71
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Check Passenger Side Door Mirror Defogger Circuit BIS0010D
1. CHECK DOOR MIRROR DEFOGGER POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect door mirror (passenger side) connector.
3. Turn ignition switch ON.
4. Check voltage between door mirror (passenger side) connector
and ground.
OK or NG
OK >> GO TO 2.
NG >> Repair or replace harness.
2. CHECK DOOR MIRROR DEFOGGER GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Check continuity between door mirror (passenger side) connec-
tor D33 terminal 3 and ground.
OK or NG
OK >> GO TO 3.
NG >> Repair or replace harness.
3. CHECK DOOR MIRROR DEFOGGER
Check continuity between door mirror (passenger side) terminal 2
and 3.
OK or NG
OK >> Check the condition of the harness and the connector.
NG >> Replace door mirror (passenger side).
ConnectorTerminal (Wire color)
Condition of rear win-
dow defogger switchVoltage (V)
(Approx.)
(+) (–)
D33 2 (L/B) GroundPress Battery voltage
OFF 0
PIIB2182E
3 (B) – Ground : Continuity should exist.
PIIB2183E
2 – 3 : Continuity should exist.
PIIB2184E