BCS-2
INTELLIGENT KEY : CONSULT Function (BCM -
INTELLIGENT KEY) ........ .......................................
22
COMB SW .............................................................. ...25
COMB SW : CONSULT Function (BCM - COMB
SW) ...................................................................... ...
25
BCM ........................................................................ ...25
BCM : CONSULT Function (BCM - BCM) ..............25
IMMU ...................................................................... ...26
IMMU : CONSULT Function (BCM - IMMU) ...........26
BATTERY SAVER ................................................. ...26
BATTERY SAVER : CONSULT Function (BCM -
BATTERY SAVER) .......... .......................................
26
TRUNK ................................................................... ...27
TRUNK : CONSULT Function (BCM - TRUNK) .....27
THEFT ALM ........................................................... ...27
THEFT ALM : CONSULT Function (BCM - THEFT
ALM) .................................................................... ...
27
RETAINED PWR .................................................... ...28
RETAINED PWR : CONSULT Function (BCM -
RETAINED PWR) ................................................ ...
28
SIGNAL BUFFER ................................................... ...28
SIGNAL BUFFER : CONSULT Function (BCM -
SIGNAL BUFFER) ............................................... ...
29
AIR PRESSURE MONITOR ................................... ...29
AIR PRESSURE MONITOR : CONSULT Function
(BCM-AIR PRESSURE MONITOR) .................... ...
29
ECU DIAGNOSIS INFORMATION ..............31
BCM (BODY CONTROL MODULE) ............... ...31
Reference Value .................................................. ...31
Fail Safe .................................................................50
DTC Inspection Priority Chart ..............................50
DTC Index ........................................................... ...52
WIRING DIAGRAM .....................................55
BCM ................................................................ ...55
Wiring Diagram .................................................... ...55
BASIC INSPECTION ...................................64
INSPECTION AND ADJUSTMENT ................ ...64
ADDITIONAL SERVICE WHEN REPLACING
CONTROL UNIT ..................................................... ...
64
ADDITIONAL SERVICE WHEN REPLACING
CONTROL UNIT : Description ............................. ...
64
ADDITIONAL SERVICE WHEN REPLACING
CONTROL UNIT : Work Pr ocedure ........................
64
CONFIGURATION (BCM) ...................................... ...64
CONFIGURATION (BCM) : Description .................65
CONFIGURATION (BCM) : Work Procedure .........65
CONFIGURATION (BCM) : Configuration list .........66
TRANSIT MODE CANCEL OPERATION ...... ...67
Description ........................................................... ...67
Work Procedure ......................................................67
DTC/CIRCUIT DIAGNOSIS ........................68
U1000 CAN COMM CIRCUIT ......................... ...68
Description ........................................................... ...68
DTC Logic ...............................................................68
Diagnosis Procedure ...............................................68
U1010 CONTROL UNIT (CAN) .........................69
DTC Logic ............................................................ ...69
Diagnosis Procedure ...............................................69
U0415 VEHICLE SPEED SIG ............................70
Description ........................................................... ...70
DTC Logic ...............................................................70
Diagnosis Procedure ...............................................70
B2562 LOW VOLTAGE .....................................71
DTC Logic ............................................................ ...71
Diagnosis Procedure ...............................................71
B259A ROOM LAMP FUSE ..............................72
DTC Logic ............................................................ ...72
Diagnosis Procedure ...............................................72
POWER SUPPLY AND GROUND CIRCUIT .....74
Diagnosis Procedure ............................................ ...74
COMBINATION SWITCH INPUT CIRCUIT .......75
Diagnosis Procedure ............................................ ...75
COMBINATION SWITCH OUTPUT CIRCUIT ...77
Diagnosis Procedure ...............................................77
SYMPTOM DIAGNOSIS ............................79
COMBINATION SWITCH SYSTEM SYMP-
TOMS .............................................................. ...
79
Symptom Table .................................................... ...79
REMOVAL AND INSTALLATION ..............80
BCM (BODY CONTROL MODULE) ............... ...80
Removal and Installation .........................................80
COMBINATION SWITCH ............................... ...81
Exploded View ..................................................... ...81
Removal and Installation .........................................81
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM
BCS-38
< ECU DIAGNOSIS INFORMATION >[BCM]
BCM (BODY CONTROL MODULE)
14
(P) Ground Combination switch
input 1 InputCombination
switch
(Wiper intermit-
tent dial 4) OFF 0V
FR WIPER HI
1.0V
INT VOLUME 1
INT VOLUME 2
17
(B) Ground Auto light reference
ground Input Push-button ignition switch ON 0V
18
(G) Ground Security indicator Output Security indicator ON 0V
Blinking 11 . 3 V
OFF Battery voltage
19
(G) Ground Lock switch signal Input
Door lock/unlock
switch Lock Battery voltage
Unlock 0V
20
(W) Ground Shift P Input Selector lever P position 0V
Any position other than P Battery voltage
21
(W) Ground Step lamp control Output Step lamp ON 0V
OFF Battery voltage
23
(L) Ground
Compressor ON sig-
nal Input A/C switch OFF 9.0 - 12.0V
ON 0V
24
(G) Ground Front door lock as-
sembly LH (key cylin-
der switch) Input
Key cylinder
switch OFF (neutral) 5V
ON (unlock) 0V
25
(BG) Ground Brake switch fuse Input — Battery voltage
26
(Y) Ground Shorting input Input Push-button ignition switch OFF Battery voltage
27
(G) Ground Brake switch lamp Input Stop lamp switch OFF (brake pedal is not de-
pressed) 0V
ON (brake pedal is de-
pressed) Battery voltage
29
(Y) Ground Front blower monitor Input
Front blower mo-
tor switch ON Battery voltage
OFF 0V
Te r m i n a l N o .
(Wire color) Description
Condition Va l u e
(Approx.)
Signal name Input/
Output
(+) (-)
PKIB4958J
JPMIA0014GB
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM
BCS
BCM (BODY CONTROL MODULE)BCS-49
< ECU DIAGNOSIS INFORMATION > [BCM]
C
D E
F
G H
I
J
K L
B
A
O P
N
126
(BR) Ground
NATS antenna amp.
B Input/
Output During waiting Intelligent Key backside is
contacted to push-button
ignition switch, turn ignition
switch ON. Just after pressing push-button
ignition switch. Pointer of analog
volt meter should move.
127 (L) Ground
NATS antenna amp.
A Input/
Output During waiting Intelligent Key backside is
contacted to push-button
ignition switch, turn ignition
switch ON. Just after pressing push-button
ignition switch. Pointer of analog
volt meter should move.
128
(BG) Ground
Front console anten-
na B Output
Push-button igni-
tion switch OFF When Intelligent Key is in
the passenger compart-
ment
When Intelligent Key is not
in the passenger compart-
ment
129 (G) Ground Battery saver output Output After passing the interior room lamp battery sav-
er operation time 0V
Any other time after passing the interior room
lamp battery saver operation time Battery voltage
130
(SB) Ground Passenger door un-
lock Output Front door RH UNLOCK (actuator is acti-
vated) Battery voltage
Other than UNLOCK (actu-
ator is not activated) 0V
131 (W) Ground BCM battery fuse Input Push-button ignition switch OFF Battery voltage
132 (L) Ground Rear door lock Output All doors LOCK (actuator is activat-
ed) Battery voltage
Other than LOCK (actuator
is not activated) 0V
133 (Y) Ground Rear door unlock Output Rear door RH
and rear door LH UNLOCK (actuator is acti-
vated) Battery voltage
Other than UNLOCK (actu-
ator is not activated) 0V
134 (B) Ground Ground 2 — Push-button ignition switch ON 0V
135
(BR) Ground Driver, passenger
and fuel door lock Output All doors LOCK (actuator is activat-
ed) Battery voltage
Other than LOCK (actuator
is not activated) 0V
136 (P) Ground Room lamp control Output Interior room
lamp OFF Battery voltage
ON 0V
Te r m i n a l N o .
(Wire color) Description
Condition Va l u e
(Approx.)
Signal name Input/
Output
(+) (-)
JMKIA0062GB
JMKIA0063GB
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM
BCS-52
< ECU DIAGNOSIS INFORMATION >[BCM]
BCM (BODY CONTROL MODULE)
DTC Index
INFOID:0000000009462019
NOTE: Details of time display
• CRNT: Displays when there is a malfunction now or after returning to the normal condition until turning igni- tion switch OFF → ON again.
• 1 - 39: Displayed if any previous malfunction is present when current condition is normal. It increases like 1
→ 2 → 3...38 → 39 after returning to the normal condition whenever ignition switch OFF → ON. The counter
remains at 39 even if the number of cycles exceeds it . It is counted from 1 again when turning ignition switch
OFF → ON after returning to the normal condition if the malfunction is detected again.
5 • C1704: LOW PRESSURE FL
• C1705: LOW PRESSURE FR
• C1706: LOW PRESSURE RR
• C1707: LOW PRESSURE RL
• C1708: [NO DATA] FL
• C1709: [NO DATA] FR
• C1710: [NO DATA] RR
• C1711: [NO DATA] RL
• C1712: [CHECKSUM ERR] FL
• C1713: [CHECKSUM ERR] FR
• C1714: [CHECKSUM ERR] RR
• C1715: [CHECKSUM ERR] RL
• C1716: [PRESSDATA ERR] FL
• C1717: [PRESSDATA ERR] FR
• C1718: [PRESSDATA ERR] RR
• C1719: [PRESSDATA ERR] RL
• C1720: [CODE ERR] FL
• C1721: [CODE ERR] FR
• C1722: [CODE ERR] RR
• C1723: [CODE ERR] RL
• C1724: [BATT VOLT LOW] FL
• C1725: [BATT VOLT LOW] FR
• C1726: [BATT VOLT LOW] RR
• C1727: [BATT VOLT LOW] RL
• C1730: FLAT TIRE FL
• C1731: FLAT TIRE FR
• C1732: FLAT TIRE RR
• C1733: FLAT TIRE RL
• C1734: CONTROL UNIT
• C1735: IGNITION SIGNAL
6 • B2621: INSIDE ANTENNA
• B2622: INSIDE ANTENNA
7 B259A: ROOM LAMP FUSE
Priority DTC
CONSULT display Fail-safe
Intelligent Key
warning lamp ON Tire pressure
monitor warning lamp ON Reference page
No DTC is detected.
Further testing may be required. —— — —
U1000: CAN COMM CIRCUIT — — — BCS-68, "Description"
U1010: CONTROL UNIT (CAN) — — — BCS-69, "DTC Logic"
U0415: VEHICLE SPEED SIG — — —BCS-70, "Description"
B2190: NATS ANTENNA AMP×—— SEC-84, "Description"
B2191: DIFFERENCE OF KEY ×—— SEC-86, "Description"
B2192: ID DISCORD BCM-ECM ×—— SEC-87, "DTC Logic"
B2193: CHAIN OF BCM-ECM ×—— SEC-88, "DTC Logic"
B2195: ANTI SCANNING ×—— SEC-89, "DTC Logic"
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM
BCS
BCM (BODY CONTROL MODULE)BCS-53
< ECU DIAGNOSIS INFORMATION > [BCM]
C
D E
F
G H
I
J
K L
B
A
O P
N
B2196: DONGLE UNIT — — —
SEC-90, "Description"
B2198: NATS ANTENNA AMP. — — — SEC-92, "DTC Logic"
B2555: STOP LAMP — — —SEC-94, "DTC Logic"
B2556: PUSH-BTN IGN SW —×— SEC-97, "DTC Logic"
B2557: VEHICLE SPEED — ×— SEC-99, "DTC Logic"
B2560: STARTER CONT RELAY ××—SEC-100, "Description"
B2562: LOW VOLTAGE ×—— BCS-71, "DTC Logic"
B259A: ROOM LAMP FUSE — — — BCS-72, "DTC Logic"
B2601: SHIFT POSITION —×—SEC-101, "DTC Logic"
B2602: SHIFT POSITION — ×—SEC-104, "DTC Logic"
B2603: SHIFT POSI STATUS — ×—SEC-106, "DTC Logic"
B2604: PNP SW — ×—SEC-110, "DTC Logic"
B2605: PNP SW — ×—SEC-113, "DTC Logic"
B2608: STARTER RELAY ××—SEC-116, "DTC Logic"
B260A: IGNITION RELAY ××—PCS-58, "DTC Logic"
B2614: ACC RELAY CIRC — ×— PCS-60, "DTC Logic"
B2615: BLOWER RELAY CIRC — ×— PCS-62, "DTC Logic"
B2616: IGN RELAY CIRC — ×— PCS-64, "DTC Logic"
B2617: STARTER RELAY CIRC ××—SEC-118, "Description"
B2618: BCM ××—PCS-66, "DTC Logic"
B261A: PUSH-BTN IGN SW — ×— PCS-68, "DTC Logic"
B261B: RES ENG RUN — — — DLK-87, "DTC Logic"
B261E: VEHICLE TYPE××
(Turn ON for
15 seconds) —
SEC-120, "Description"
B2621: INSIDE ANTENNA — — — DLK-88, "DTC Logic"
B2622: INSIDE ANTENNA — — —DLK-90, "DTC Logic"
B26F1: IGNITION RELAY — — —PCS-70, "DTC Logic"
B26F2: IGNITION RELAY — — —PCS-72, "DTC Logic"
B26F6: BCM — — —PCS-74, "DTC Logic"
B26FD: SHIFT LOCK SOLENOID — — — DLK-92, "DTC Logic"
B26FE: HOOD SWITCH — — —DLK-95, "DTC Logic"
B26FF: REMOTE KEYLESS ENTRY RE-
CEIVER —— —
DLK-97, "DTC Logic"
C1704: LOW PRESSURE FL — — ×
WT-28, "DTC Logic"
C1705: LOW PRESSURE FR — — ×
C1706: LOW PRESSURE RR — — ×
C1707: LOW PRESSURE RL — — ×
C1708: [NO DATA] FL — — ×
WT-30, "DTC Logic"
C1709: [NO DATA] FR — — ×
C1710: [NO DATA] RR — — ×
C1711: [NO DATA] RL — — ×
CONSULT display Fail-safe
Intelligent Key
warning lamp
ON Tire pressure
monitor warning
lamp ON Reference page
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM
BCS-72
< DTC/CIRCUIT DIAGNOSIS >[BCM]
B259A ROOM LAMP FUSE
B259A ROOM LAMP FUSE
DTC LogicINFOID:0000000009462038
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1. DTC CONFIRMATION
1. Erase DTC.
2. Turn ignition switch OFF.
3. Perform the Self Diagnostic Result of BCM with CONSULT, after the ignition switch has been turned ON for 2 minutes or more.
Is any DTC detected?
YES >> Refer to BCS-72, "Diagnosis Procedure".
NO >> Inspection End.
Diagnosis ProcedureINFOID:0000000009462039
Regarding Wiring Diagram information, refer to BCS-55, "Wiring Diagram".
1. CHECK FUSE
Check that the following fuse is not blown.
Is the fuse or fusible link blown?
YES >> Replace the blown fuse after repairing the affected circuit.
NO >> GO TO 2.
2. CHECK BAT BCM FUSE CIRCUIT
1. Disconnect BCM connector M21.
2. Check voltage between BCM connector M21 terminal 131 and ground.
Is the inspection result normal?
YES >> Replace BCM. Refer to BCS-80, "Removal and Installation".
NO >> Repair or replace harness or connectors. GO TO 3.
3. CHECK BATTERY SAVER OUTPUT CIRCUIT FOR SHORT TO GROUND
1. Turn ignition OFF.
2. Check continuity between BCM connector M21 terminal 129 and ground.
CONSULT Display DTC Detectio n Condition Possible cause
ROOM LAMP FUSE
[B259A] When BCM detects that power supply voltage is sup-
plied to fusible link battery power, but not to BCM bat-
tery fuse for 2 minutes when ignition switch is ON. Harness or connector (power supply circuit)
Terminal No. Signal name Fuse No.
131 BCM battery fuse 1 (10A)
BCM GroundVo l ta g e
(Approx.)
Connector Terminal
M21 131 — Battery voltage
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM
BCS
B259A ROOM LAMP FUSEBCS-73
< DTC/CIRCUIT DIAGNOSIS > [BCM]
C
D E
F
G H
I
J
K L
B
A
O P
N
Is the inspection result normal?
YES >> Replace BCM. Refer to
BCS-80, "Removal and Installation".
NO >> Repair or replace harness or connectors.
BCM Ground Continuity
Connector Terminal
M21 129 — No
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM
BCS-74
< DTC/CIRCUIT DIAGNOSIS >[BCM]
POWER SUPPLY AND GROUND CIRCUIT
POWER SUPPLY AND GROUND CIRCUIT
Diagnosis ProcedureINFOID:0000000009462040
Regarding Wiring Diagram information, refer to
BCS-55, "Wiring Diagram".
1. CHECK FUSE AND FUSIBLE LINK
Check that the following fuse and fusible link are not blown.
Is the fuse or fusible link blown?
YES >> Replace the blown fuse or fusible link after repairing the affected circuit.
NO >> GO TO 2
2. CHECK POWER SUPPLY CIRCUIT
1. Disconnect BCM connector M21.
2. Check voltage between BCM connector M21 terminals 131, 139 and ground.
Is the inspection result normal?
YES >> GO TO 3
NO >> Repair or replace harness or connectors.
3. CHECK GROUND CIRCUIT
Check continuity between BCM connector M21 terminals 134, 143 and ground.
Is the inspection result normal?
YES >> Inspection End.
NO >> Repair or replace harness or connectors.
Terminal No. Signal name Fuse and fusible link No.
139 Fusible link battery power I (40A)
131 BCM battery fuse 1 (10A)
BCM GroundVo l ta g e
(Approx.)
Connector Terminal
M21 131
— Battery voltage
139
BCM Ground Continuity
Connector Terminal
M21 134
—Yes
143
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM