Nissan Titan. Manual - part 491

RF-8

< SYSTEM DESCRIPTION >

DIAGNOSIS SYSTEM (BCM)

DIAGNOSIS SYSTEM (BCM)

COMMON ITEM
COMMON ITEM : CONSULT Function (BCM - COMMON ITEM)

INFOID:0000000009879052

APPLICATION ITEM

CONSULT performs the following functions via CAN communication with BCM.

SYSTEM APPLICATION

BCM can perform the following functions.

RETAINED PWR

Direct Diagnostic Mode

Description

Ecu Identification

The BCM part number is displayed.

Self Diagnostic Result

The BCM self diagnostic results are displayed.

Data Monitor

The BCM input/output data is displayed in real time.

Active Test

The BCM activates outputs to test components.

Work support

The settings for BCM functions can be changed.

Configuration

• The vehicle specification can be read and saved.
• The vehicle specification can be written when replacing BCM.

CAN Diag Support Mntr

The result of transmit/receive diagnosis of CAN communication is displayed.

System

Sub System

Direct Diagnostic Mode

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Da

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CA

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 Su

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Door lock

DOOR LOCK

×

×

×

Rear window defogger

REAR DEFOGGER

×

×

Warning chime

BUZZER

×

×

Interior room lamp timer

INT LAMP

×

×

×

Remote keyless entry system

MULTI REMOTE ENT

×

×

×

Exterior lamp

HEADLAMP

×

×

×

Wiper and washer

WIPER

×

×

×

Turn signal and hazard warning lamps FLASHER

×

×

Air conditioner

AIR CONDITIONER

×

Combination switch

COMB SW

×

BCM

BCM

×

×

×

×

×

Immobilizer

IMMU

×

×

×

Interior room lamp battery saver

BATTERY SAVER

×

×

×

Vehicle security system

THEFT ALM

×

×

×

RAP system

RETAINED PWR

×

×

×

Signal buffer system

SIGNAL BUFFER

×

×

TPMS

AIR PRESSURE MONITOR

×

×

×

×

Panic alarm system

PANIC ALARM

×

DIAGNOSIS SYSTEM (BCM)

RF-9

< SYSTEM DESCRIPTION >

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RETAINED PWR : CONSULT Function (BCM - RETAINED PWR)

INFOID:0000000009879053

DATA MONITOR

ACTIVE TEST

WORK SUPPORT

*: Initial setting

Monitor Item [Unit]

Description

IGN ON SW [On/Off]

Indicates condition of ignition switch ON position.

DOOR SW-DR [On/Off]

Indicates condition of front door switch LH.

DOOR SW-AS [On/Off]

Indicates condition of front door switch RH.

Test Item

Description

RETAINED PWR

This test is able to check retained power operation [Off/On].

Support Item

Setting

Description

RETAINED PWR SET

MODE3

2 min

Sets the retained accessory power operating time. 

MODE2

OFF

MODE1*

45 sec

RF-10

< DTC/CIRCUIT DIAGNOSIS >

POWER SUPPLY AND GROUND CIRCUIT

DTC/CIRCUIT DIAGNOSIS

POWER SUPPLY AND GROUND CIRCUIT

SUNROOF MOTOR ASSEMBLY
SUNROOF MOTOR ASSEMBLY : Diagnosis Procedure

INFOID:0000000009879054

Regarding Wiring Diagram information, refer to 

RF-28, "Wiring Diagram"

.

1.

SUNROOF MOTOR ASSEMBLY

1. Turn ignition switch OFF.

2. Disconnect sunroof motor assembly connector R4.

3. Turn ignition switch ON.

4. Check voltage between sunroof motor assembly connector R4

terminals 1 and 5 and ground.

Is the voltage as specified?

YES

>> GO TO 4

NO

>> GO TO 2

2.

 CHECK SUNROOF MOTOR POWER SUPPLY 

1. Turn ignition switch OFF.

2. Disconnect BCM connector M20.

3. Check continuity between BCM connector M20 (A) and sunroof

motor assembly connector R4 (B).

4. Check continuity between BCM connector M20 (A) and ground.

Are the continuity test results as specified?

YES

>> GO TO 3

NO

>> Repair or replace harness.

3.

 CHECK BCM OUTPUT SIGNAL

(+)

(–)

Voltage

Connector

Terminal 

R4

1

Ground

Battery voltage

5

ALKIA0868ZZ

A

B

Continuity

Connector

Terminal

Connector

Terminal

M20

68

R4

5

Yes

69

1

A

—

Continuity

Connector

Terminal

M20

68

Ground

No

69

ALKIA0870ZZ

POWER SUPPLY AND GROUND CIRCUIT

RF-11

< DTC/CIRCUIT DIAGNOSIS >

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1. Connect BCM connector M20.

2. Turn ignition switch ON.

3. Check voltage between BCM connector M20 and ground.

Is the voltage reading as specified?

YES

>> Check condition of harness and connector.

NO

>> Replace BCM. Refer to 

BCS-52, "Removal and Installation"

.

4.

 CHECK GROUND CIRCUIT

1. Turn ignition switch OFF.

2. Check continuity between sunroof motor assembly connector

R4 terminal 7 and ground.

Is the continuity test result as specified?

YES

>> Power supply and ground circuits are OK.

NO

>> Repair or replace harness.

SUNROOF MOTOR ASSEMBLY : Special Repair Requirement

INFOID:0000000009879055

1.

 PERFORM INITIALIZATION PROCEDURE

Perform initialization procedure. 

Refer to 

RF-5, "ADDITIONAL SERVICE WHEN REPLACING CONTROL UNIT : Special Repair Requirement"

.

Does the sunroof motor assembly operate properly?

YES

>> Repair is complete.

NO

>> Check fitting adjustment.

(+)

(–)

Voltage

Connector

Terminal 

M20

68

Ground

Battery voltage

69

ALKIA0871ZZ

Connector

Terminal

—

Continuity 

R4

7

Ground

Yes

ALKIA0869ZZ