Nissan Frontier. Manual - part 93

BCS

BCS-1

ELECTRICAL & POWER CONTROL

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SECTION 

BCS

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CONTENTS

BODY CONTROL SYSTEM

BASIC INSPECTION  ....................................

3

INSPECTION AND ADJUSTMENT .....................

3

ADDITIONAL SERVICE WHEN REPLACING 
CONTROL UNIT (BCM) ...............................................

3

ADDITIONAL SERVICE WHEN REPLACING 
CONTROL UNIT (BCM) : Description .......................

3

ADDITIONAL SERVICE WHEN REPLACING 
CONTROL UNIT (BCM) : Work Procedure ...............

3

CONFIGURATION (BCM)  ...........................................

3

CONFIGURATION (BCM) : Description ....................

4

CONFIGURATION (BCM) : Work Procedure ............

4

CONFIGURATION (BCM) : Configuration List ..........

5

SYSTEM DESCRIPTION  ..............................

6

BODY CONTROL SYSTEM ................................

6

System Description  ...................................................

6

Component Parts Location ........................................

6

COMBINATION SWITCH READING SYSTEM 

.....

7

System Diagram ........................................................

7

System Description  ...................................................

7

Component Parts Location ......................................

10

SIGNAL BUFFER SYSTEM  ...............................

11

System Diagram ......................................................

11

System Description  .................................................

11

POWER CONSUMPTION CONTROL SYS-
TEM ....................................................................

12

System Diagram ......................................................

12

System Description  .................................................

12

Component Parts Location ......................................

13

DIAGNOSIS SYSTEM (BCM)  ............................

14

COMMON ITEM .........................................................

14

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

14

DOOR LOCK ..............................................................

14

DOOR LOCK : CONSULT Function (BCM - 
DOOR LOCK) ..........................................................

15

REAR DEFOGGER ....................................................

15

REAR DEFOGGER : CONSULT Function (BCM - 
REAR DEFOGGER) ................................................

15

BUZZER .....................................................................

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BUZZER : CONSULT Function (BCM - BUZZER) ....

16

INT LAMP ...................................................................

16

INT LAMP : CONSULT Function (BCM - INT 
LAMP) ......................................................................

16

MULTI REMOTE ENT  ................................................

17

MULTI REMOTE ENT : CONSULT Function 
(BCM - MULTI REMOTE ENT) ................................

17

HEADLAMP ...............................................................

18

HEADLAMP : CONSULT Function (BCM - HEAD-
LAMP) ......................................................................

18

WIPER ........................................................................

19

WIPER : CONSULT Function (BCM - WIPER)  .......

19

FLASHER ...................................................................

20

FLASHER : CONSULT Function (BCM - FLASH-
ER) ..........................................................................

20

AIR CONDITIONER  ...................................................

20

AIR CONDITIONER : CONSULT Function (BCM - 
AIR CONDITIONER)  ...............................................

20

COMB SW ..................................................................

20

COMB SW : CONSULT Function (BCM - COMB 
SW) ..........................................................................

20

BCM ...........................................................................

21

BCM : CONSULT Function (BCM - BCM)  ...............

21

IMMU ..........................................................................

21

IMMU : CONSULT Function (BCM - IMMU) ............

21

BCS-2

BATTERY SAVER  ....................................................

21

BATTERY SAVER : CONSULT Function (BCM - 
BATTERY SAVER) .................................................

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THEFT ALM  ..............................................................

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THEFT ALM : CONSULT Function (BCM - THEFT 
ALM) .......................................................................

22

RETAINED PWR  .......................................................

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

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SIGNAL BUFFER ......................................................

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SIGNAL BUFFER : CONSULT Function (BCM - 
SIGNAL BUFFER) ..................................................

23

AIR PRESSURE MONITOR ......................................

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AIR PRESSURE MONITOR : CONSULT Function 
(BCM - AIR PRESSURE MONITOR) .....................

24

PANIC ALARM ..........................................................

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PANIC ALARM : CONSULT Function (BCM - 
PANIC ALARM)  ......................................................

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DTC/CIRCUIT DIAGNOSIS .........................

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U1000 CAN COMM CIRCUIT  ............................

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Description ..............................................................

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DTC Logic ...............................................................

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Diagnosis Procedure  ..............................................

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POWER SUPPLY AND GROUND CIRCUIT  .....

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Diagnosis Procedure  ..............................................

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COMBINATION SWITCH INPUT CIRCUIT  .......

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Diagnosis Procedure  ..............................................

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Special Repair Requirement ...................................

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COMBINATION SWITCH OUTPUT CIRCUIT ...

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Diagnosis Procedure ...............................................

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Special Repair Requirement  ...................................

31

ECU DIAGNOSIS INFORMATION .............

32

BCM (BODY CONTROL MODULE) ..................

32

Reference Value  .....................................................

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Terminal Layout  ......................................................

35

Physical Values .......................................................

35

Fail Safe .................................................................

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DTC Inspection Priority Chart ...............................

40

DTC Index ..............................................................

41

WIRING DIAGRAM  ....................................

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BCM (BODY CONTROL MODULE) ..................

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Wiring Diagram  .......................................................

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SYMPTOM DIAGNOSIS  ............................

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COMBINATION SWITCH SYSTEM SYMP-
TOMS .................................................................

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Symptom Table .......................................................

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PRECAUTION ............................................

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PRECAUTIONS  .................................................

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Precaution for Supplemental Restraint System 
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" .................................................................

48

REMOVAL AND INSTALLATION ..............

49

BCM (BODY CONTROL MODULE) ..................

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Removal and Installation .........................................

49

BCS

INSPECTION AND ADJUSTMENT

BCS-3

< BASIC INSPECTION >

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BASIC INSPECTION

INSPECTION AND ADJUSTMENT

ADDITIONAL SERVICE WHEN REPLACING CONTROL UNIT (BCM)
ADDITIONAL SERVICE WHEN REPLACING CONTROL UNIT (BCM) : Description

INFOID:0000000009479173

BEFORE REPLACEMENT

When replacing BCM, save or print current vehicle specification with CONSULT configuration before replace-

ment.

NOTE:

If “Before Replace ECU” cannot be used, use the “After Replace ECU” or “Manual Configuration” after replac-

ing BCM.

AFTER REPLACEMENT

CAUTION:

• When replacing BCM, you must perform “After Replace ECU” with CONSULT.

- Complete the procedure of “After Replace ECU” in order.

- If you set incorrect “After Replace ECU”, incidents might occur.

- Configuration is different for each vehicle model. Confirm configuration of each vehicle model.

• When replacing BCM, perform the system initialization (NATS).

ADDITIONAL SERVICE WHEN REPLACING CONTROL UNIT (BCM) : Work Proce-
dure

INFOID:0000000009479174

1.

SAVING VEHICLE SPECIFICATION

CONSULT

Enter "Re/Programming, Configuration" and perform “Before Replace ECU” to save or print current vehicle

specification.

NOTE:

If “Before Replace ECU” cannot be used, use the "After Replace ECU" or "Manual Configuration" after replac-

ing BCM.

>> GO TO 2.

2.

REPLACE BCM

Replace BCM. Refer to 

BCS-49, "Removal and Installation"

.

>> GO TO 3.

3.

WRITING VEHICLE SPECIFICATION

CONSULT

1. Enter "Re/Programming, Configuration".

2. If “Before Replace ECU” operation was performed, automatically an "Operation Log Selection" screen will

be displayed. Select the applicable file from the "Saved Data List" and press “Confirm” to write vehicle

specification. Refer to 

BCS-4, "CONFIGURATION (BCM) : Work Procedure"

.

3. If “Before Replace ECU” operation was not performed, select "After Replace ECU" or "Manual Configura-

tion" to write vehicle specification. Refer to 

BCS-4, "CONFIGURATION (BCM) : Work Procedure"

.

>> GO TO 4.

4.

INITIALIZE BCM (NATS)

Perform BCM initialization. (NATS)

>> Work End.

CONFIGURATION (BCM)

BCS-4

< BASIC INSPECTION >

INSPECTION AND ADJUSTMENT

CONFIGURATION (BCM) : Description

INFOID:0000000009479175

Vehicle specification needs to be written with CONSULT because it is not written after replacing BCM.

Configuration has three functions as follows:

CAUTION:

• When replacing BCM, you must perform “Select Saved Data List” or "After Replace ECU" with CON-

SULT.

• Complete the procedure of “Select Saved Data List” or "After Replace ECU" in order.

• If you set incorrect “Select Saved Data List” or "After Replace ECU", incidents might occur.

• Configuration is different for each vehicle model. Confirm configuration of each vehicle model.

• Never perform “Select Saved Data List” or "After Replace ECU" except for new BCM. 

CONFIGURATION (BCM) : Work Procedure

INFOID:0000000009479176

1.

WRITING MODE SELECTION

CONSULT

Select “Reprogramming, Configuration” of BCM.

When writing saved data>>GO TO 2.

When writing manually>>GO TO 3.

2.

PERFORM “SAVED DATA LIST”

CONSULT

Automatically “Operation Log Selection” window will display if “Before Replace ECU” was performed. Select

applicable file from the “Save Data List” and press “Confirm”.

>> Work End.

3.

PERFORM “AFTER REPLACE ECU” OR “MANUAL CONFIGURATION”

CONSULT

1. Select “After Replace ECU” or “Manual Configuration”.

2. Identify the correct model and configuration list. Refer to 

BCS-5, "CONFIGURATION (BCM) : Configura-

tion List"

.

3. Confirm and/or change setting value for each item.

CAUTION:

Thoroughly read and understand the vehicle specification. ECU control may not operate normally

if the setting is not correct.

4. Select “Next”.

CAUTION:

Make sure to select “Next”, confirm each setting value and press “OK” even if the indicated con-

figuration of brand new BCM is same as the desirable configuration. If not, configuration which is

set automatically by selecting vehicle model can not be memorized.

5. When "Completed", select "End".

>> GO TO 4.

4.

OPERATION CHECK

Confirm that each function controlled by BCM operates normally.

>> Work End.

Function

Description

"Before Replace ECU"

• Reads the vehicle configuration of current BCM.
• Saves the read vehicle configuration.

"After Replace ECU"

Writes the vehicle configuration with manual selection.

"Select Saved Data List"

Writes the vehicle configuration with saved data.