Nissan Frontier D40. Manual - part 931

RF-8

< FUNCTION DIAGNOSIS >

DIAGNOSIS SYSTEM (BCM)

DIAGNOSIS SYSTEM (BCM)

COMMON ITEM

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

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APPLICATION ITEM

CONSULT-III performs the following functions via CAN communication with BCM.

SYSTEM APPLICATION

BCM can perform the following functions for each system.
NOTE:
It can perform the diagnosis modes except the following for all sub system selection items.

RETAINED PWR

RETAINED PWR : CONSULT-III Function (BCM - RETAINED PWR)

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DATA MONITOR

Diagnosis mode

Function Description

WORK SUPPORT

Changes the setting for each system function.

SELF-DIAG RESULTS

Displays the diagnosis results judged by BCM. Refer to 

RF-30, "DTC Index"

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CAN DIAG SUPPORT MNTR

Monitors the reception status of CAN communication viewed from BCM.

DATA MONITOR

The BCM input/output signals are displayed.

ACTIVE TEST

The signals used to activate each device are forcibly supplied from BCM.

ECU IDENTIFICATION

The BCM part number is displayed.

CONFIGURATION

• Enables to read and save the vehicle specification.
• Enables to write the vehicle specification when replacing BCM.

System

Sub system selection item

Diagnosis mode

WORK SUPPORT

DATA MONITOR

ACTIVE TEST

BCM

BCM

×

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

HEAD LAMP

×

×

×

Wiper and washer

WIPER

×

×

×

Turn signal and hazard warning lamps

FLASHER

×

×

Air conditioner

AIR CONDITONER

×

Combination switch

COMB SW

×

Immobilizer

IMMU

×

×

Interior room lamp battery saver

BATTERY SAVER

×

×

×

Vehicle security system

THEFT ALM

×

×

×

RAP (retained accessory power)

RETAINED PWR

×

×

×

Signal buffer system

SIGNAL BUFFER

×

×

TPMS (tire pressure monitoring sys-
tem)

AIR PRESSURE MONITOR 

×

×

×

Panic alarm system

PANIC ALARM

×

DIAGNOSIS SYSTEM (BCM)

RF-9

< FUNCTION DIAGNOSIS >

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ACTIVE TEST

WORK SUPPORT

Monitor Item

[Unit]

Description

IGN ON SW [ON/OFF]

Indicates condition of ignition switch.

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 supply RAP signal (power) from BCM (body control module) to power window 
system and power sunroof system (if equipped). Those systems can be operated when turning on 
“RETAINED PWR” on CONSULT-III screen even if the ignition switch is turned OFF.
NOTE:
During this test, CONSULT-III can be operated with ignition switch in OFF position. “RETAINED 
PWR” should be turned “ON” or “OFF” on CONSULT-III screen when ignition switch is ON. Then 
turn ignition switch OFF to check retained power operation. CONSULT-III might be stuck if “RE-
TAINED PWR” is turned “ON” or “OFF” on CONSULT-III screen when ignition switch is OFF.

Work item

Description

RETAINED PWR SET

RAP signal’s power supply period can be changed by mode setting. Selects RAP signal’s power 
supply period between three steps
• MODE1 (45 sec.)/MODE2 (OFF)/MODE 3 (2 min.).

RF-10

< COMPONENT DIAGNOSIS >

POWER SUPPLY AND GROUND CIRCUIT

COMPONENT DIAGNOSIS

POWER SUPPLY AND GROUND CIRCUIT

SUNROOF MOTOR ASSEMBLY

SUNROOF MOTOR ASSEMBLY : Diagnosis Procedure

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Regarding Wiring Diagram information, refer to 

RF-33, "Wiring Diagram"

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SUNROOF MOTOR ASSEMBLY

1.

 CHECK SUNROOF MOTOR POWER SUPPLY

1.

Turn ignition switch OFF.

2.

Disconnect sunroof motor assembly connector B83.

3.

Turn ignition switch ON.

4.

Check voltage between sunroof motor assembly connector B83
terminals 7 and 9 and ground.

Is the voltage as specified?

YES

>> GO TO 4

NO

>> GO TO 2

2.

 CHECK SUNROOF MOTOR POWER SUPPLY CIRCUITS

1.

Turn ignition switch OFF.

2.

Disconnect BCM connector M20.

3.

Check continuity between BCM connector M20 (A) and sunroof
motor assembly connector B83 (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 

B83

7

Ground

Battery voltage

9

ALKIA1176GB

A

B

Continuity

Connector

Terminal

Connector

Terminal

M20

68

B83

9

Yes

69

7

A

—

Continuity

Connector

Terminal

M20

68

Ground

No

69

ALKIA1177GB

POWER SUPPLY AND GROUND CIRCUIT

RF-11

< COMPONENT 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-54, "Removal and Installation"

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4.

 CHECK GROUND CIRCUIT

1.

Turn ignition switch OFF.

2.

Check continuity between sunroof motor assembly connector
B83 terminal 10 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

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1.

 PERFORM INITIALIZATION PROCEDURE

Perform initialization procedure. 
Refer to 

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

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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 

B83

10

Ground

Yes

ALKIA1178GB