Nissan Altima L32. Manual - part 128

BCS-46

< COMPONENT DIAGNOSIS >

[BCM]

COMBINATION SWITCH OUTPUT CIRCUIT

Is the measurement normal when any of the switches is turned ON?

YES

>> Replace BCM. Refer to 

BCS-96, "Removal and Installation"

.

NO

>> Replace the combination switch. Refer to 

WW-121, "Removal and Installation"

.

Special Repair Requirement

INFOID:0000000004202277

1.

 REQUIRED WORK WHEN REPLACING BCM

Initialize control unit. Refer to 

BCS-6, "CONFIGURATION (BCM) : Special Repair Requirement"

.

>> Work End.

System

Terminals

Value (Approx.)

(+)

(-)

Combination switch

Ground

Connec-

tor

Terminal

OUTPUT 1

M28

12

1.4 V

OUTPUT 2

14

OUTPUT 3

5

OUTPUT 4

2

OUTPUT 5

8

JPMIA0041GB

BCS

BCM (BODY CONTROL MODULE)

BCS-47

< ECU DIAGNOSIS >

[BCM]

C

D

E

F

G

H

I

J

K

L

B

A

O

P

N

ECU DIAGNOSIS

BCM (BODY CONTROL MODULE)

Reference Value

INFOID:0000000004202278

VALUES ON THE DIAGNOSIS TOOL

Monitor Item

Condition

Value/Status

FR WIPER HI

Other than front wiper switch HI

OFF

Front wiper switch HI

ON

FR WIPER LOW

Other than front wiper switch LO

OFF

Front wiper switch LO

ON

FR WASHER SW

Front washer switch OFF

OFF

Front washer switch ON

ON

FR WIPER INT

Other than front wiper switch INT

OFF

Front wiper switch INT

ON

FR WIPER STOP

Front wiper is not in STOP position

OFF

Front wiper is in STOP position

ON

INT VOLUME

Wiper intermittent dial is in a dial position 1 - 7

Wiper intermittent dial position

TURN SIGNAL R

Other than turn signal switch RH

OFF

Turn signal switch RH

ON

TURN SIGNAL L

Other than turn signal switch LH

OFF

Turn signal switch LH

ON

TAIL LAMP SW

Other than lighting switch 1ST and 2ND

OFF

Lighting switch 1ST or 2ND

ON

HI BEAM SW

Other than lighting switch HI

OFF

Lighting switch HI

ON

HEAD LAMP SW 1

Other than lighting switch 2ND

OFF

Lighting switch 2ND

ON

HEAD LAMP SW 2

Other than lighting switch 2ND

OFF

Lighting switch 2ND

ON

PASSING SW

Other than lighting switch PASS

OFF

Lighting switch PASS

ON

AUTO LIGHT SW

Other than lighting switch AUTO

OFF

Lighting switch AUTO

ON

FR FOG SW

Front fog lamp switch OFF

OFF

Front fog lamp switch ON

ON

DOOR SW-DR

Driver door closed

OFF

Driver door opened

ON

DOOR SW-AS

Passenger door closed

OFF

Passenger door opened

ON

DOOR SW-RR

Rear door RH closed

OFF

Rear door RH opened

ON

DOOR SW-RL

Rear door LH closed

OFF

Rear door LH opened

ON

BCS-48

< ECU DIAGNOSIS >

[BCM]

BCM (BODY CONTROL MODULE)

DOOR SW-BK

NOTE:
This item is displayed, but cannot be monitored. 

OFF

CDL LOCK SW

Other than power door lock switch LOCK

OFF

Power door lock switch LOCK

ON

CDL UNLOCK SW

Other than power door lock switch UNLOCK

OFF

Power door lock switch UNLOCK

ON

KEY CYL LK-SW

Other than driver door key cylinder LOCK position

OFF

Driver door key cylinder LOCK position

ON

KEY CYL UN-SW

Other than driver door key cylinder UNLOCK position

OFF

Driver door key cylinder UNLOCK position

ON

KEY CYL SW-TR

NOTE:
This item is displayed, but cannot be monitored. 

OFF

HAZARD SW

When hazard switch is not pressed

OFF

When hazard switch is pressed

ON

REAR DEF SW

When rear window defogger switch is pressed

ON

TR CANCEL SW

Trunk lid opener cancel switch OFF

OFF

Trunk lid opener cancel switch ON

ON

TR/BD OPEN SW

Trunk lid opener switch OFF

OFF

While the trunk lid opener switch is turned ON

ON

TRNK/HAT MNTR

Trunk lid closed

OFF

Trunk lid opened

ON

RKE-LOCK

When LOCK button of Intelligent Key is not pressed

OFF

When LOCK button of Intelligent Key is pressed

ON

RKE-UNLOCK

When UNLOCK button of Intelligent Key is not pressed

OFF

When UNLOCK button of Intelligent Key is pressed

ON

RKE-TR/BD

When TRUNK OPEN button of Intelligent Key is not pressed

OFF

When TRUNK OPEN button of Intelligent Key is pressed

ON

RKE-PANIC

When PANIC button of Intelligent Key is not pressed

OFF

When PANIC button of Intelligent Key is pressed

ON

RKE-P/W OPEN

When UNLOCK button of Intelligent Key is not pressed and held

OFF

When UNLOCK button of Intelligent Key is pressed and held 

ON

RKE-MODE CHG

When LOCK/UNLOCK button of Intelligent Key is not pressed and 
held simultaneously

OFF

When LOCK/UNLOCK button of Intelligent Key is pressed and held 
simultaneously

ON

OPTICAL SENSOR

When outside of the vehicle is bright

Close to 5 V

When outside of the vehicle is dark

Close to 0 V

REQ SW-DR

When driver door request switch is not pressed

OFF

When driver door request switch is pressed

ON

REQ SW-AS

When passenger door request switch is not pressed

OFF

When passenger door request switch is pressed

ON

REQ SW-BD/TR

When trunk request switch is not pressed

OFF

When trunk request switch is pressed

ON

PUSH SW

When engine switch (push switch) is not pressed

OFF

When engine switch (push switch) is pressed

ON

Monitor Item

Condition

Value/Status

BCS

BCM (BODY CONTROL MODULE)

BCS-49

< ECU DIAGNOSIS >

[BCM]

C

D

E

F

G

H

I

J

K

L

B

A

O

P

N

IGN RLY2-F/B

Ignition switch OFF or ACC

OFF

Ignition switch ON

ON

ACC RLY-F/B

Ignition switch OFF

OFF

Ignition switch ACC or ON

ON

CLUTCH SW

When the clutch pedal is not depressed

OFF

When the clutch pedal is depressed

ON

BRAKE SW 1

When the brake pedal is not depressed

ON

When the brake pedal is depressed

OFF

DETE/CANCL SW

When selector lever is in P position

OFF

When selector lever is in any position other than P

ON

SFT PN/N SW

When selector lever is in any position other than P or N

OFF

When selector lever is in P or N position

ON

S/L-LOCK

Electronic steering column lock LOCK status

OFF

Electronic steering column lock UNLOCK status

ON

S/L-UNLOCK

Electronic steering column lock UNLOCK status

OFF

Electronic steering column lock LOCK status

ON

S/L RELAY-F/B

Ignition switch OFF or ACC

OFF

Ignition switch ON

ON

UNLK SEN-DR

Driver door UNLOCK status

OFF

Driver door LOCK status

ON

PUSH SW-IPDM

When engine switch (push switch) is not pressed

OFF

When engine switch (push switch) is pressed

ON

IGN RLY1 F/B

Ignition switch OFF or ACC

OFF

Ignition switch ON

ON

DETE SW -IPDM

When selector lever is in P position

OFF

When selector lever is in any position other than P

ON

SFT PN -IPDM

When selector lever is in any position other than P or N

OFF

When selector lever is in P or N position

ON

SFT P-MET

When selector lever is in any position other than P

OFF

When selector lever is in P position

ON

SFT N-MET

When selector lever is in any position other than N

OFF

When selector lever is in N position

ON

ENGINE STATE

Engine stopped

STOP

While the engine stalls

STALL

At engine cranking

CRANK

Engine running

RUN

S/L LOCK-IPDM

Electronic steering column lock LOCK status

OFF

Electronic steering column lock UNLOCK status

ON

S/L UNLCK-IPDM

Electronic steering column lock UNLOCK status

OFF

Electronic steering column lock LOCK status

ON

S/L RELAY-REQ

Ignition switch OFF or ACC

OFF

Ignition switch ON

ON

VEH SPEED 1

While driving

Equivalent to speedometer reading

VEH SPEED 2

While driving

Equivalent to speedometer reading

Monitor Item

Condition

Value/Status