Nissan Xterra. Manual - part 515

 

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Nissan Xterra. Manual - part 515

 

 

MWI

BCM (BODY CONTROL MODULE)

MWI-47

< ECU DIAGNOSIS INFORMATION >

C

D

E

F

G

H

I

J

K

L

M

B

A

O

P

32

BG

Combination switch 
output 5

Output

ON

Lighting, turn, wiper OFF
Wiper dial position 4

33

GR

Combination switch 
output 4

Output

ON

Lighting, turn, wiper OFF
Wiper dial position 4

34

G

Combination switch 
output 3

Output

ON

Lighting, turn, wiper OFF
Wiper dial position 4

35

BR

Combination switch 
output 2

Output

ON

Lighting, turn, wiper OFF
Wiper dial position 4

36

LG

Combination switch 
output 1

37

B

Key switch and key 
lock solenoid

Input

OFF

Key inserted

Battery voltage

Key removed

0V

38

W/R

Ignition switch (ON) 

Input

ON

Battery voltage

39

L

CAN-H

40

P

CAN-L

41

Y

Rear window defogger 
switch

Input

ON

Rear window defogger switch 
ON

0V

Rear window defogger switch 
OFF

5V

42

L

Off-road lamps

Output

ON

Off-road 
lamps switch

ON 0V

OFF Battery 

voltage

43

Y

Back door switch

Input

OFF

ON (open)

0V

OFF (closed)

Battery voltage

Terminal

Wire 

color

Signal name

Signal 

input/

output

Measuring condition

Reference value or waveform

(Approx.)

Ignition 

switch

Operation or condition

SKIA5291E

SKIA5292E

SKIA5291E

SKIA5292E

MWI-48

< ECU DIAGNOSIS INFORMATION >

BCM (BODY CONTROL MODULE)

44

BG

Rear wiper auto stop 
switch 

Input

ON

Rise up position (rear wiper 
arm on stopper)

0V

A Position (full clockwise stop 
position)

Battery voltage

Forward sweep (counterclock-
wise direction)

Fluctuating

B Position (full counterclock-
wise stop position)

0V

Reverse sweep (clockwise di-
rection)

Fluctuating

45

V

Lock switch 

Input

OFF

ON (lock)

0V

OFF

Battery voltage

46

LG

Unlock switch 

Input

OFF

ON (unlock)

0V

OFF

Battery voltage

47

GR

Front door switch LH

Input

OFF

ON (open)

0V

OFF (closed)

Battery voltage

48

P

Rear door switch LH

Input

OFF

ON (open)

0V

OFF (closed)

Battery voltage

49

L

Cargo lamp

Output

OFF

Any door open (ON)

0V

All doors closed (OFF)

Battery voltage

50

W

Off-road lamps relay

Output

ON

Off-road 
lamps switch

ON 0V

OFF

Battery voltage

51

BG

Trailer turn signal 
(right)

Output

ON

Turn right ON

52

LG

Trailer turn signal (left)

Output

ON

Turn left ON

55

W

Rear wiper output cir-
cuit 1

Output

ON

OFF

0

ON

Battery voltage

56

R/Y

Battery saver output

Output

OFF

10 minutes after ignition 
switch is turned OFF

0V

ON

Battery voltage

57

R/Y

Battery power supply

Input

OFF

Battery voltage

58

W

Optical sensor

Input

ON

When optical sensor is illumi-
nated

3.1V or more

When optical sensor is not illu-
minated

0.6V or less

Terminal

Wire 

color

Signal name

Signal 

input/

output

Measuring condition

Reference value or waveform

(Approx.)

Ignition 

switch

Operation or condition

SKIA3009J

SKIA3009J

MWI

BCM (BODY CONTROL MODULE)

MWI-49

< ECU DIAGNOSIS INFORMATION >

C

D

E

F

G

H

I

J

K

L

M

B

A

O

P

Fail Safe

INFOID:0000000010244809

Fail-safe index

BCM performs fail-safe control when any DTC listed below is detected.

DTC Inspection Priority Chart

INFOID:0000000010244810

If some DTCs are displayed at the same time, perform inspections one by one based on the following priority

chart.

59

GR

Front door lock as-
sembly LH actuator 
(unlock)

Output

OFF

OFF (neutral)

0V

ON (unlock)

Battery voltage

60

LG

Turn signal (left)

Output

ON

Turn left ON

61

G

Turn signal (right)

Output

ON

Turn right ON

63

BR

Interior room/map 
lamp

Output

OFF

Any door 
switch

ON (open)

0V

OFF (closed)

Battery voltage

65

V

All door lock actuators 
(lock)

Output

OFF

OFF (neutral)

0V

ON (lock)

Battery voltage

66

L

Front door lock actua-
tor RH, rear door lock 
actuators LH/RH and 
back door lock actua-
tor (unlock)

Output

OFF

OFF (neutral)

0V

ON (unlock)

Battery voltage

67

B

Ground

Input

ON

0V

68

SB

Power window power 
supply (RAP)

Output

Ignition switch ON

Battery voltage

Within 45 seconds after igni-
tion switch OFF

Battery voltage

More than 45 seconds after ig-
nition switch OFF

0V

When front door LH or RH is 
open or power window timer 
operates

0V

70

W

Battery power supply

Input

OFF

Battery voltage

Terminal

Wire 

color

Signal name

Signal 

input/

output

Measuring condition

Reference value or waveform

(Approx.)

Ignition 

switch

Operation or condition

SKIA3009J

SKIA3009J

Display contents of CONSULT

Fail-safe

Cancellation

U1000: CAN COMM CIRCUIT

Inhibit engine cranking

When the BCM re-establishes communication with the other mod-
ules.

MWI-50

< ECU DIAGNOSIS INFORMATION >

BCM (BODY CONTROL MODULE)

DTC Index

INFOID:0000000010244811

NOTE:

Details of time display

• CRNT: Displays when there is a malfunction now or after returning to the normal condition until turning igni-

tion switch OFF 

→ ON again.

• 1 - 39: Displayed if any previous malfunction is present when current condition is normal. It increases like 1

→ 2 → 3...38 → 39 after returning to the normal condition whenever ignition switch OFF → ON. The counter

remains at 39 even if the number of cycles exceeds it. It is counted from 1 again when turning ignition switch

OFF 

→ ON after returning to the normal condition if the malfunction is detected again.

Priority

DTC

1

• U1000: CAN COMM CIRCUIT

2

• B2190: NATS ANTENNA AMP
• B2191: DIFFERENCE OF KEY
• B2192: ID DISCORD BCM-ECM
• B2193: CHAIN OF BCM-ECM

3

• C1729: VHCL SPEED SIG ERR
• C1735: IGNITION SIGNAL

4

• C1704: LOW PRESSURE FL
• C1705: LOW PRESSURE FR
• C1706: LOW PRESSURE RR
• C1707: LOW PRESSURE RL
• C1708: [NO DATA] FL
• C1709: [NO DATA] FR
• C1710: [NO DATA] RR
• C1711: [NO DATA] RL
• C1712: [CHECKSUM ERR] FL
• C1713: [CHECKSUM ERR] FR
• C1714: [CHECKSUM ERR] RR
• C1715: [CHECKSUM ERR] RL
• C1716: [PRESSDATA ERR] FL
• C1717: [PRESSDATA ERR] FR
• C1718: [PRESSDATA ERR] RR
• C1719: [PRESSDATA ERR] RL
• C1720: [CODE ERR] FL
• C1721: [CODE ERR] FR
• C1722: [CODE ERR] RR
• C1723: [CODE ERR] RL
• C1724: [BATT VOLT LOW] FL
• C1725: [BATT VOLT LOW] FR
• C1726: [BATT VOLT LOW] RR
• C1727: [BATT VOLT LOW] RL

CONSULT display

Fail-safe

Low tire pressure 
warning lamp ON

Reference page

No DTC is detected.
further testing
may be required.

U1000: CAN COMM CIRCUIT

X

BCS-27

B2190: NATS ANTENNA AMP

SEC-18

B2191: DIFFERENCE OF KEY

SEC-21

B2192: ID DISCORD BCM-ECM

SEC-22

B2193: CHAIN OF BCM-ECM

SEC-24

C1708: [NO DATA] FL

X

WT-15

C1709: [NO DATA] FR

X

WT-15

C1710: [NO DATA] RR

X

WT-15

C1711: [NO DATA] RL

X

WT-15

 

 

 

 

 

 

 

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