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Nissan Pathfinder (2008 year). Manual - part 81

BCS

BCM (BODY CONTROL MODULE)

BCS-49

< ECU DIAGNOSIS >

ALMIA0254GB

BCS-50

< ECU DIAGNOSIS >

BCM (BODY CONTROL MODULE)

DTC Inspection Priority Chart

INFOID:0000000001712702

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

ALMIA0255GB

BCS

BCM (BODY CONTROL MODULE)

BCS-51

< ECU DIAGNOSIS >

DTC Index

INFOID:0000000001712703

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.

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

• 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

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-30

U1010: CONTROL UNIT (CAN)

—

BCS-31

B2013: STRG COMM 1

—

SEC-27

B2190: NATS ANTTENA AMP

—

SEC-30

(with I-

Key),

SEC-111

(without I-Key)

BCS-52

< ECU DIAGNOSIS >

BCM (BODY CONTROL MODULE)

B2191: DIFFERENCE OF KEY

—

SEC-33

(with I-

Key),

SEC-114

(without I-Key)

B2192: ID DISCORD BCM-ECM

—

SEC-34

(with I-

Key),

SEC-115

(without I-Key)

B2193: CHAIN OF BCM-ECM

—

SEC-36

(with I-

Key),

SEC-117

(without I-Key)

B2552: INTELLIGENT KEY

—

SEC-38

B2590: NATS MALFUNCTION

—

SEC-39

C1708: [NO DATA] FL

—

WT-13

C1709: [NO DATA] FR

—

WT-13

C1710: [NO DATA] RR

—

WT-13

C1711: [NO DATA] RL

—

WT-13

C1712: [CHECKSUM ERR] FL

—

WT-15

C1713: [CHECKSUM ERR] FR

—

WT-15

C1714: [CHECKSUM ERR] RR

—

WT-15

C1715: [CHECKSUM ERR] RL

—

WT-15

C1716: [PRESSDATA ERR] FL

—

WT-17

C1717: [PRESSDATA ERR] FR

—

WT-17

C1718: [PRESSDATA ERR] RR

—

WT-17

C1719: [PRESSDATA ERR] RL

—

WT-17

C1720: [CODE ERR] FL

—

WT-15

C1721: [CODE ERR] FR

—

WT-15

C1722: [CODE ERR] RR

—

WT-15

C1723: [CODE ERR] RL

—

WT-15

C1724: [BATT VOLT LOW] FL

—

WT-15

C1725: [BATT VOLT LOW] FR

—

WT-15

C1726: [BATT VOLT LOW] RR

—

WT-15

C1727: [BATT VOLT LOW] RL

—

WT-15

C1729: VHCL SPEED SIG ERR

—

WT-18

C1734: CONTROL UNIT

—

CONSULT display

Fail-safe

Intelligent Key

warning lamp ON

Tire pressure

monitor warning

lamp ON

Reference page

BCS

COMBINATION SWITCH SYSTEM SYMPTOMS

BCS-53

< SYMPTOM DIAGNOSIS >

SYMPTOM DIAGNOSIS

COMBINATION SWITCH SYSTEM SYMPTOMS

Symptom Table

INFOID:0000000001712704

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-33, "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-35, "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-36, "Description"

BCM

Replace BCM. Refer to

BCS-54, "Removal and Installation"

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

Replace the switch that cannot be operated.

BCS-54

< ON-VEHICLE REPAIR >

BCM (BODY CONTROL MODULE)

ON-VEHICLE REPAIR

BCM (BODY CONTROL MODULE)

Removal and Installation

INFOID:0000000001678397

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-4, "CONFIGURATION : 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

Requirement"