Nissan Frontier. Manual - part 784

BCM (BODY CONTROL MODULE)

EXL-61

< ECU DIAGNOSIS INFORMATION >

C

D

E

F

G

H

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J

K

M

A

B

EXL

N

O

P

48

P

Rear door switch LH 
(Crew Cab)

Input

OFF

ON (open)

0V

OFF (closed)

Battery voltage

50

P

Cargo lamp

Output

OFF

Any door open (ON)

0V

All doors closed (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

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

—

—

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

59

GR

Front door lock as-
sembly LH (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

Terminal

Wire 

color

Item

Signal 

input/

output

Measuring condition

Reference value or waveform

(Approx.)

Ignition 

switch

Operation or condition

SKIA3009J

SKIA3009J

SKIA3009J

SKIA3009J

EXL-62

< ECU DIAGNOSIS INFORMATION >

BCM (BODY CONTROL MODULE)

1: King cab
2: Crew cab

Fail Safe

INFOID:0000000010227900

Fail-safe index

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

DTC Inspection Priority Chart

INFOID:0000000010227901

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

chart.

66

L

Front door lock actua-
tor RH, rear door lock 
actuators LH/RH (un-
lock)

Output

OFF

OFF (neutral)

0V

ON (unlock)

Battery voltage

67

B

Ground

Input

ON

—

0V

68

1

O

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

68

2

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

69

P

Power window power 
supply (BAT)

Output

OFF

—

Battery voltage

70

W

Battery power supply

Input

OFF

—

Battery voltage

Terminal

Wire 

color

Item

Signal 

input/

output

Measuring condition

Reference value or waveform

(Approx.)

Ignition 

switch

Operation or condition

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.

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

BCM (BODY CONTROL MODULE)

EXL-63

< ECU DIAGNOSIS INFORMATION >

C

D

E

F

G

H

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A

B

EXL

N

O

P

DTC Index

INFOID:0000000010227902

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.

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

Priority

DTC

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

—

—

BCS-26

B2190: NATS ANTTENA 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

C1712: [CHECKSUM ERR] FL

—

X

WT-17

C1713: [CHECKSUM ERR] FR

—

X

WT-17

C1714: [CHECKSUM ERR] RR

—

X

WT-17

C1715: [CHECKSUM ERR] RL

—

X

WT-17

EXL-64

< ECU DIAGNOSIS INFORMATION >

BCM (BODY CONTROL MODULE)

C1716: [PRESSDATA ERR] FL

—

X

WT-19

C1717: [PRESSDATA ERR] FR

—

X

WT-19

C1718: [PRESSDATA ERR] RR

—

X

WT-19

C1719: [PRESSDATA ERR] RL

—

X

WT-19

C1720: [CODE ERR] FL

—

X

WT-17

C1721: [CODE ERR] FR

—

X

WT-17

C1722: [CODE ERR] RR

—

X

WT-17

C1723: [CODE ERR] RL

—

X

WT-17

C1724: [BATT VOLT LOW] FL

—

X

WT-17

C1725: [BATT VOLT LOW] FR

—

X

WT-17

C1726: [BATT VOLT LOW] RR

—

X

WT-17

C1727: [BATT VOLT LOW] RL

—

X

WT-17

C1729: VHCL SPEED SIG ERR

—

X

WT-21

C1735: IGNITION SIGNAL

—

X

WT-22

CONSULT display

Fail-safe

Low tire pressure 
warning lamp ON

Reference page