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Nissan Pathfinder (2009 year). Manual - part 89

BCS

BCM (BODY CONTROL MODULE)

BCS-53

< ECU DIAGNOSIS >

Fail Safe

INFOID:0000000004422015

Fail-safe index

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

ABMIA0162GB

2009 Pathfinder

BCS-54

< ECU DIAGNOSIS >

BCM (BODY CONTROL MODULE)

DTC Inspection Priority Chart

INFOID:0000000003935294

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

DTC Index

INFOID:0000000003935295

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

→

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.

U1010: CONTROL UNIT (CAN)

Inhibit engine cranking

When the BCM re-start communicating with the other modules.

Priority

DTC

• U1000: CAN COMM CIRCUIT
• U1010: CONTROL UNIT (CAN)

• B2190: NATS ANTENNA AMP
• B2191: DIFFERENCE OF KEY
• B2192: ID DISCORD BCM-ECM
• B2193: CHAIN OF BCM-ECM
• B2013: STRG COMM 1
• B2552: INTELLIGENT KEY
• B2590: NATS MALFUNCTION

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

• 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

2009 Pathfinder

BCS

BCM (BODY CONTROL MODULE)

BCS-55

< ECU DIAGNOSIS >

CONSULT display

Fail-safe

Intelligent Key

warning lamp ON

Tire pressure

monitor warning

lamp ON

Reference page

No DTC is detected.
further testing
may be required.

—

U1000: CAN COMM CIRCUIT

—

BCS-33

U1010: CONTROL UNIT (CAN)

—

BCS-34

B2013: STRG COMM 1

—

SEC-27

B2190: NATS ANTTENA AMP

—

SEC-30

(with I-

Key),

SEC-136

(without I-Key)

B2191: DIFFERENCE OF KEY

—

SEC-33

(with I-

Key),

SEC-139

(without I-Key)

B2192: ID DISCORD BCM-ECM

—

SEC-34

(with I-

Key),

SEC-140

(without I-Key)

B2193: CHAIN OF BCM-ECM

—

SEC-36

(with I-

Key),

SEC-142

(without I-Key)

B2552: INTELLIGENT KEY

—

SEC-38

B2590: NATS MALFUNCTION

—

SEC-39

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 SWITCH

—

2009 Pathfinder

BCS-56

< SYMPTOM DIAGNOSIS >

COMBINATION SWITCH SYSTEM SYMPTOMS

SYMPTOM DIAGNOSIS

COMBINATION SWITCH SYSTEM SYMPTOMS

Symptom Table

INFOID:0000000003935296

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

Check the malfunction combinations.

Malfunction item:

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

Data monitor item

Malfunction combi-

nation

TURN SIGNAL R

SIGNAL L

HI BEAM

HEADLAMP SW

IL LAM

ASSING SW

AUT

GHT

FR FOG SW

FR WIPE

R HI

WIPER LOW

FR W

ASHER S

T V

RR WIPER ON

WIPER

RR W

ASHER SW

Combinations other than those above

All Items

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

Malfunction

combination

Malfunctioning part

Repair or replace

Combination switch INPUT 1 circuit

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

BCS-36, "Diagnosis Procedure"

Combination switch INPUT 2 circuit

Combination switch INPUT 3 circuit

Combination switch INPUT 4 circuit

Combination switch INPUT 5 circuit

Combination switch OUTPUT 1 circuit

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

BCS-38, "Diagnosis Procedure"

Combination switch OUTPUT 2 circuit

Combination switch OUTPUT 3 circuit

Combination switch OUTPUT 4 circuit

Combination switch OUTPUT 5 circuit

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

Refer to

BCS-39, "Description"

BCM

Replace BCM. Refer to

BCS-59, "Removal and Installation"

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

Replace the switch that cannot be operated.

2009 Pathfinder

BCS

PRECAUTIONS

BCS-57

< PRECAUTION >

PRECAUTION

PRECAUTIONS

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

INFOID:0000000004857488

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.

Precaution Necessary for Steering Wheel Rotation After Battery Disconnect

INFOID:0000000004410614

NOTE:
• This Procedure is applied only to models with Intelligent Key system and NATS (NISSAN ANTI-THEFT SYS-

TEM).

• Remove and install all control units after disconnecting both battery cables with the ignition knob in the

″

LOCK

″

position.

• Always use CONSULT-III to perform self-diagnosis as a part of each function inspection after finishing work.

If DTC is detected, perform trouble diagnosis according to self-diagnostic results.

For models equipped with the Intelligent Key system and NATS, an electrically controlled steering lock mech-
anism is adopted on the key cylinder.
For this reason, if the battery is disconnected or if the battery is discharged, the steering wheel will lock and
steering wheel rotation will become impossible.
If steering wheel rotation is required when battery power is interrupted, follow the procedure below before
starting the repair operation.

OPERATION PROCEDURE

Connect both battery cables.
NOTE:
Supply power using jumper cables if battery is discharged.

Use the Intelligent Key or mechanical key to turn the ignition switch to the

″

ACC

″

position. At this time, the

steering lock will be released.

Disconnect both battery cables. The steering lock will remain released and the steering wheel can be
rotated.

Perform the necessary repair operation.

2009 Pathfinder

BCS-58

< PRECAUTION >

PRECAUTIONS

When the repair work is completed, return the ignition switch to the

″

LOCK

″

position before connecting

the battery cables. (At this time, the steering lock mechanism will engage.)

Perform a self-diagnosis check of all control units using CONSULT-III.

2009 Pathfinder

BCS

BCM (BODY CONTROL MODULE)

BCS-59

< ON-VEHICLE REPAIR >

ON-VEHICLE REPAIR

BCM (BODY CONTROL MODULE)

Removal and Installation

INFOID:0000000003935297

REMOVAL

NOTE:
If possible, before removing BCM, retrieve current BCM configuration to use for reference when configuring
brand-new BCM after installation. Refer to

BCS-3, "ADDITIONAL SERVICE WHEN REPLACING CONTROL

UNIT : Special Repair Requirement"

Disconnect the battery negative terminal.

Remove the lower instrument panel LH. Refer to

IP-10, "Exploded View"

Remove the knee protector. Refer to

IP-10, "Exploded View"

Remove the BCM screws and release the BCM.

Disconnect the BCM connectors and then remove the BCM.

INSTALLATION

Installation is in the reverse order of removal.
NOTE:
• When replacing the BCM, it must be configured. Refer to

BCS-4, "CONFIGURATION : Special Repair