Nissan Frontier D40. Manual - part 60

BCS-50

< ECU DIAGNOSIS >

BCM (BODY CONTROL MODULE)

DTC Inspection Priority Chart

INFOID:0000000005275709

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

DTC Index

INFOID:0000000005275710

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.

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

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

Tire pressure 

monitor warning 

lamp ON

Reference page

No DTC is detected.
further testing
may be required.

—

—

—

U1000: CAN COMM CIRCUIT

—

—

BCS-28

BCS

BCM (BODY CONTROL MODULE)

BCS-51

< ECU DIAGNOSIS >

C

D

E

F

G

H

I

J

K

L

B

A

O

P

N

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

—

—

WT-14

C1709: [NO DATA] FR

—

—

WT-14

C1710: [NO DATA] RR

—

—

WT-14

C1711: [NO DATA] RL

—

—

WT-14

C1712: [CHECKSUM ERR] FL

—

—

WT-16

C1713: [CHECKSUM ERR] FR

—

—

WT-16

C1714: [CHECKSUM ERR] RR

—

—

WT-16

C1715: [CHECKSUM ERR] RL

—

—

WT-16

C1716: [PRESSDATA ERR] FL

—

—

WT-18

C1717: [PRESSDATA ERR] FR

—

—

WT-18

C1718: [PRESSDATA ERR] RR

—

—

WT-18

C1719: [PRESSDATA ERR] RL

—

—

WT-18

C1720: [CODE ERR] FL

—

—

WT-16

C1721: [CODE ERR] FR

—

—

WT-16

C1722: [CODE ERR] RR

—

—

WT-16

C1723: [CODE ERR] RL

—

—

WT-16

C1724: [BATT VOLT LOW] FL

—

—

WT-16

C1725: [BATT VOLT LOW] FR

—

—

WT-16

C1726: [BATT VOLT LOW] RR

—

—

WT-16

C1727: [BATT VOLT LOW] RL

—

—

WT-16

C1729: VHCL SPEED SIG ERR

—

—

WT-19

C1735: IGNITION SIGNAL

—

—

—

CONSULT display

Fail-safe

Tire pressure 

monitor warning 

lamp ON

Reference page

BCS-52

< SYMPTOM DIAGNOSIS >

COMBINATION SWITCH SYSTEM SYMPTOMS

SYMPTOM DIAGNOSIS

COMBINATION SWITCH SYSTEM SYMPTOMS

Symptom Table

INFOID:0000000005275711

1.

Perform the data monitor of CONSULT-III to check for any malfunctioning item.

2.

Check the malfunction combinations.

Malfunction item: 

×

3.

Identify the malfunctioning part from the agreed combination and repair or replace the part.

Data monitor item

Malfunction combi-

nation

TURN SIGNAL R

T

U

R

N

 SIGNAL L

HI BEAM 

SW

HEADLAMP SW 

1

HEADLAMP SW 

2

T

A

IL LAM

P

 SW

P

ASSING SW

FR FOG SW

FR WIPE

R HI

F

R

 WIPER LOW

FR

 W

IP

E

R

 I

N

T

FR W

ASHER S

W

IN

T V

O

L

U

ME

×

×

×

×

A

×

×

×

×

B

×

×

×

C

×

×

D

×

×

E

×

×

F

×

×

G

×

×

H

×

×

×

×

I

×

×

×

×

J

Combinations other than those above

K

All Items

L

If only one item is detected or the item is not applicable to the combinations A to L

M

Malfunction 

combination

Malfunctioning part

Repair or replace

A

Combination switch INPUT 1 circuit

Inspect the combination switch input circuit applicable to the malfunctioning 
part. Refer to 

BCS-31, "Diagnosis Procedure"

.

B

Combination switch INPUT 2 circuit

C

Combination switch INPUT 3 circuit

D

Combination switch INPUT 4 circuit

E

Combination switch INPUT 5 circuit

F

Combination switch OUTPUT 1 circuit

Inspect the combination switch output circuit applicable to the malfunction-
ing part. Refer to 

BCS-33, "Diagnosis Procedure"

.

G

Combination switch OUTPUT 2 circuit

H

Combination switch OUTPUT 3 circuit

I

Combination switch OUTPUT 4 circuit

J

Combination switch OUTPUT 5 circuit

K

Light and turn signal switch or front wip-
er and washer switch

Refer to 

BCS-35, "Description"

.

L

BCM

Replace BCM. Refer to 

BCS-54, "Removal and Installation"

.

M

Light and turn signal switch or front wip-
er and washer switch

Replace the switch that cannot be operated.

BCS

PRECAUTIONS

BCS-53

< PRECAUTION >

C

D

E

F

G

H

I

J

K

L

B

A

O

P

N

PRECAUTION

PRECAUTIONS

Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT 
PRE-TENSIONER"

INFOID:0000000005567999

The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain
types of collision. This system includes seat belt switch inputs and dual stage front air bag modules. The SRS
system uses the seat belt switches to determine the front air bag deployment, and may only deploy one front
air bag, depending on the severity of a collision and whether the front occupants are belted or unbelted.
Information necessary to service the system safely is included in the SR and SB section of this Service Man-
ual.

WARNING:

• To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death in

the event of a collision which would result in air bag inflation, all maintenance must be performed by
an authorized NISSAN/INFINITI dealer.

• Improper maintenance, including incorrect removal and installation of the SRS, can lead to personal

injury caused by unintentional activation of the system. For removal of Spiral Cable and Air Bag
Module, see the SR section.

• Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this

Service Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or har-
ness connectors.

PRECAUTIONS WHEN USING POWER TOOLS (AIR OR ELECTRIC) AND HAMMERS

WARNING:

• When working near the Airbag Diagnosis Sensor Unit or other Airbag System sensors with the Igni-

tion ON or engine running, DO NOT use air or electric power tools or strike near the sensor(s) with a
hammer. Heavy vibration could activate the sensor(s) and deploy the air bag(s), possibly causing
serious injury.

• When using air or electric power tools or hammers, always switch the Ignition OFF, disconnect the

battery, and wait at least 3 minutes before performing any service.