Nissan Pathfinder. Manual - part 220

BCS

U1010 CONTROL UNIT (CAN)

BCS-69

< DTC/CIRCUIT DIAGNOSIS >

[BCM]

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U1010 CONTROL UNIT (CAN)

DTC Logic

INFOID:0000000009174906

DTC DETECTION LOGIC

Diagnosis Procedure

INFOID:0000000009174907

1.

 REPLACE BCM

When DTC U1010 is detected, replace BCM.

>> Replace BCM. Refer to 

BCS-80, "Removal and Installation"

.

CONSULT Display

DTC Detection Condition

Possible Cause

CAN COMM CIRCUIT
[U1010]

BCM detected internal CAN communication circuit mal-
function.

BCM

BCS-70

< DTC/CIRCUIT DIAGNOSIS >

[BCM]

U0415 VEHICLE SPEED SIG

U0415 VEHICLE SPEED SIG

Description

INFOID:0000000009174908

U0415 is displayed if any unusual condition is present in the reception status of the vehicle speed signal from

the ABS actuator and electric unit (control unit).

DTC Logic

INFOID:0000000009174909

DTC DETECTION LOGIC

NOTE:

• If DTC U0415 is displayed with DTC U1000, first perform the trouble diagnosis for DTC U1000. Refer to

BCS-68, "DTC Logic"

.

• If DTC U0415 is displayed with DTC U1010, first perform the trouble diagnosis for DTC U1010. Refer to

BCS-69, "DTC Logic"

.

DTC CONFIRMATION PROCEDURE

1.

 DTC CONFIRMATION

1. Erase the DTC.

2. Turn ignition switch OFF.

3. Perform Self Diagnostic Result of BCM with CONSULT, after the ignition switch has been turned ON for 2

seconds or more.

Is any DTC detected?

YES

>> Refer to 

BCS-52, "DTC Index"

.

NO

>> Inspection End. 

Diagnosis Procedure

INFOID:0000000009174910

1.

 ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) SELF DIAGNOSTIC RESULT

Perform Self Diagnostic Result of ABS with CONSULT. Refer to 

BRC-32, "CONSULT Function"

.

Is any DTC detected?

YES

>> Perform the trouble diagnosis related to the detected DTC. Refer to 

BRC-42, "DTC Index"

.

NO

>> GO TO 2.

2.

 CHECK ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) POWER SUPPLY AND GROUND

CIRCUIT
Check ABS actuator and electric unit (control unit) power and ground. Refer to 

BRC-65, "Diagnosis Proce-

dure"

.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair or replace harness or connectors.

3.

 COMBINATION METER SELF DIAGNOSTIC RESULT

Perform Self Diagnostic Result of METER M&A with CONSULT. Refer to 

MWI-19, "CONSULT Function

(METER/M&A)"

.

Is any DTC detected?

YES

>> Perform the trouble diagnosis related to the detected DTC. Refer to 

MWI-29, "DTC Index"

.

NO

>> Refer to 

GI-49, "Intermittent Incident"

.

CONSULT Display

DTC Detection Condition

Possible Cause

VEHICLE SPEED SIG
[U0415]

When the vehicle speed signal received from the 
ABS actuator and electric unit (control unit) remains 
abnormal for 2 seconds or more.

• ABS system
• Combination meter system
• CAN bus harness

BCS

B2562 LOW VOLTAGE

BCS-71

< DTC/CIRCUIT DIAGNOSIS >

[BCM]

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B2562 LOW VOLTAGE

DTC Logic

INFOID:0000000009174911

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.

 DTC CONFIRMATION

1. Erase DTC.

2. Turn ignition switch OFF.

3. Perform the Self Diagnostic Result of BCM with CONSULT, after the ignition switch has been turned ON

for 120 seconds or more.

Is any DTC detected?

YES

>> Refer to 

BCS-71, "Diagnosis Procedure"

.

NO

>> Inspection End.

Diagnosis Procedure

INFOID:0000000009174912

1.

 CHECK BATTERY VOLTAGE

Check battery voltage. 
Is battery voltage less than 8.8V?

YES

>> Charge battery and retest. Refer to 

CHG-14, "Work Flow (With EXP-800 NI or GR8-1200 NI)"

 or

CHG-17, "Work Flow (Without EXP-800 NI or GR8-1200 NI)"

.

NO

>> GO TO 2.

2.

 CHECK POWER SUPPLY AND GROUND CIRCUIT

Check BCM power supply and ground circuit. Refer to 

BCS-74, "Diagnosis Procedure"

.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair or replace harness or connectors.

3.

 BCM SELF DIAGNOSTIC RESULT

Perform Self Diagnostic Result of BCM with CONSULT. Refer to 

BCS-24, "BCM : CONSULT Function (BCM -

BCM)"

.

Is DTC B2562 CRNT?

YES

>> Replace BCM. Refer to 

BCS-80, "Removal and Installation"

.

NO

>> Refer to 

GI-49, "Intermittent Incident"

.

CONSULT Display

DTC Detection Condition

Possible cause

LOW VOLTAGE
[B2562]

When the power supply voltage to BCM remains less 
than 8.8V for 120 seconds or more

• Harness or connector (power supply circuit)
• Vehicle battery

BCS-72

< DTC/CIRCUIT DIAGNOSIS >

[BCM]

B259A ROOM LAMP FUSE

B259A ROOM LAMP FUSE

DTC Logic

INFOID:0000000009174913

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.

 DTC CONFIRMATION

1. Erase DTC.

2. Turn ignition switch OFF.

3. Perform the Self Diagnostic Result of BCM with CONSULT, after the ignition switch has been turned ON

for 2 minutes or more.

Is any DTC detected?

YES

>> Refer to 

BCS-72, "Diagnosis Procedure"

.

NO

>> Inspection End.

Diagnosis Procedure

INFOID:0000000009174914

Regarding Wiring Diagram information, refer to 

BCS-55, "Wiring Diagram"

.

1.

 CHECK FUSE

Check that the following fuse is not blown.

Is the fuse or fusible link blown?

YES

>> Replace the blown fuse after repairing the affected circuit.

NO

>> GO TO 2.

2.

 CHECK BAT BCM FUSE CIRCUIT

1. Disconnect BCM connector M81.

2. Check voltage between BCM connector M81 terminal 131 and ground.

Is the inspection result normal?

YES

>> Replace BCM. Refer to 

BCS-80, "Removal and Installation"

.

NO

>> Repair or replace harness or connectors. GO TO 3.

3.

 CHECK BATTERY SAVER OUTPUT CIRCUIT FOR SHORT TO GROUND

1. Turn ignition OFF.

2. Check continuity between BCM connector M81 terminal 129 and ground.

CONSULT Display

DTC Detection Condition

Possible cause

ROOM LAMP FUSE
[B259A]

When BCM detects that power supply voltage is sup-
plied to fusible link battery power, but not to BCM bat-
tery fuse for 2 minutes when ignition switch is ON.

Harness or connector (power supply circuit)

Terminal No.

Signal name

Fuse No.

131

BCM battery fuse

1 (10A)

BCM

Ground

Voltage

(Approx.)

Connector

Terminal

M81

131

—

Battery voltage