Nissan Frontier. Manual - part 244

DLK-22

< SYSTEM DESCRIPTION >

DIAGNOSIS SYSTEM (BCM)

ACTIVE TEST

WORK SUPPORT

*: Initial setting

Monitor Item [Unit]

Description

IGN ON SW [On/Off]

Indicates condition of ignition switch ON position.

KEY ON SW [On/Off]

Indicates condition of key switch.

ACC ON SW [On/Off]

Indicates condition of ignition switch ACC position.

KEYLESS LOCK [On/Off]

Indicates condition of lock signal from keyfob.

KEYLESS UNLOCK [On/Off]

Indicates condition of unlock signal from keyfob.

KEYLESS PANIC [On/Off]

Indicates condition of panic signal from keyfob.

DOOR SW-DR [On/Off]

Indicates condition of front door switch LH.

DOOR SW-AS [On/Off]

Indicates condition of front door switch RH.

DOOR SW-RR [On/Off]

Indicates condition of rear door switch RH.

DOOR SW-RL [On/Off]

Indicates condition of rear door switch LH.

CDL LOCK SW [On/Off]

Indicates condition of lock signal from door lock and unlock switch.

CDL UNLOCK SW [On/Off]

Indicates condition of unlock signal from door lock and unlock switch.

KEY CYL LK SW [On/Off]

Indicates condition of lock signal from door key cylinder switch.

Test Item

Description

DOOR LOCK

This test is able to check door lock operation [OTR ULK/DR UNLK/ALL ULK/ALL LCK].

FLASHER

This test is able to check hazard reminder operation [Off/LH/RH].

HORN

This test is able to check horn operation [On].

Support Item

Setting

Description

HORN CHIRP SET

Off

Horn chirp function can be changed in this mode.

On*

HAZARD LAMP SET

MODE4*

Lock and Unlock

Hazard warning lamp function can be changed in this mode.

MODE3

Lock Only

MODE2

Unlock Only

MODE1

OFF

MULTI ANSWER BACK SET

MODE2*

Lock

Hazard warning lamps flash twice and horn does not sound.

Unlock

Hazard warning lamps do not flash and horn does not sound.

MODE1

Lock

Hazard warning lamps flash twice and horn sounds once.

Unlock

Hazard warning lamps flash once and horn does not sound.

AUTO LOCK SET

MODE3

1 min

Auto locking function can be changed in this mode.

MODE2

OFF

MODE1*

5 min

PANIC ALRM SET

MODE3

1.5 sec

Panic alarm operation can be changed in this mode.

MODE2

OFF

MODE1*

0.5 sec

REMO CONT ID REGIST

—

Keyfob ID code can be registered.

REMO CONT ID ERASUR

—

Keyfob ID code can be erased.

REMO CONT ID CONFIR

—

Keyfob ID code registration is displayed.

U1000 CAN COMM CIRCUIT

DLK-23

< DTC/CIRCUIT DIAGNOSIS >

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DTC/CIRCUIT DIAGNOSIS

U1000 CAN COMM CIRCUIT

Description

INFOID:0000000009478875

Refer to 

LAN-54, "CAN Communication Signal Chart"

.

DTC Logic

INFOID:0000000009478876

DTC DETECTION LOGIC

Diagnosis Procedure

INFOID:0000000009478877

1.

 PERFORM SELF DIAGNOSTIC

1. Turn ignition switch ON and wait for 2 seconds or more.

2. Check “Self Diagnostic Result” of BCM.
Is “CAN COMM CIRCUIT” displayed?

YES

>> Refer to 

LAN-14, "Trouble Diagnosis Flow Chart"

.

NO

>> Refer to 

GI-42, "Intermittent Incident"

.

DTC

CONSULT display de-

scription

DTC Detection Condition

Possible cause

U1000

CAN COMM CIRCUIT

When BCM cannot communicate CAN com-
munication signal continuously for 2 sec-
onds or more.

Any item (or items) of the following listed below is 
malfunctioning in CAN communication system.
• Transmission
• Receiving (ECM)
• Receiving (METER/M&A)
• Receiving (TCM)
• Receiving (IPDM E/R)

DLK-24

< DTC/CIRCUIT DIAGNOSIS >

U1010 CONTROL UNIT (CAN)

U1010 CONTROL UNIT (CAN)

DTC Logic

INFOID:0000000009478878

DTC DETECTION LOGIC

Diagnosis Procedure

INFOID:0000000009478879

1.

REPLACE BCM

When DTC [U1010] is detected, replace BCM.

>> Replace BCM. Refer to 

BCS-49, "Removal and Installation"

.

Special Repair Requirement

INFOID:0000000009478880

1.

REQUIRED WORK WHEN REPLACING BCM

The BCM must be initialized when replaced. Refer to (Body Control System) for BCM configuration.

Initialize NVIS by CONSULT. For the details of initialization refer to CONSULT Immobilizer mode and follow

the on-screen instructions.

>> Inspection End.

DTC

CONSULT display de-

scription

DTC Detection Condition

Possible cause

U1010

CONTROL UNIT (CAN)

BCM detected internal CAN communication circuit malfunction.

BCM

POWER SUPPLY AND GROUND CIRCUIT

DLK-25

< DTC/CIRCUIT DIAGNOSIS >

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POWER SUPPLY AND GROUND CIRCUIT

Diagnosis Procedure

INFOID:0000000010219721

Regarding Wiring Diagram information, refer to 

BCS-43, "Wiring Diagram"

.

1.

 CHECK FUSES AND FUSIBLE LINK

Check that the following fuses and fusible link are not blown.

Is the fuse blown?

YES

>> Replace the blown fuse or fusible link after repairing the affected circuit.

NO

>> GO TO 2

2.

 CHECK POWER SUPPLY CIRCUIT

1. Turn ignition switch OFF.

2. Disconnect BCM.

3. Check voltage between BCM harness connector and ground.

Is the measurement value normal?

YES

>> GO TO 3

NO

>> Repair or replace harness.

3.

 CHECK GROUND CIRCUIT

Terminal No.

Signal name

Fuses and fusible link No.

57

Battery power supply

21 (10A)

70

G (50A)

11

Ignition ACC or ON

4 (10A)

38

Ignition ON or START

1 (10A)

Connector

Terminals 

Power

source

Condition

Voltage (V) (Ap-

prox.)

(+)

(-)

M18

11

Ground

ACC 

power 

supply

Ignition 

switch 

ACC or 

ON

Battery voltage

38

Ground

Ignition 

power 

supply

Ignition 

switch ON 

or START

Battery voltage

M20

57

Ground

Battery 

power 

supply

Ignition 

switch 

OFF

Battery voltage

70

Ground

Battery 

power 

supply

Ignition 

switch 

OFF

Battery voltage

LIIA2415E