ECU INFINITI QX56 2011 Factory Service Manual

DIAGNOSIS SYSTEM (BCM)PWC-11
< SYSTEM DESCRIPTION >
C
DE
F
G H
I
J
L
M A
B
PWC
N
O P
DIAGNOSIS SYSTEM (BCM)
COMMON ITEM
COMMON ITEM : CONSULT-III Fu nction (BCM - COMMON ITEM)INFOID:0000000006217269
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.
×: Applicable item
*: This item is indicated, but not used.
FREEZE FRAME DATA (FFD)
The BCM records the following vehicle condition at the time a particular DTC is detected, and displays on
CONSULT-III.
Diagnosis mode Function Description
Work Support Changes the setting for each system function.
Self Diagnostic Result Displays the diagnosis results judged by BCM. Refer to BCS-57, "
DTCIndex".
CAN Diag Support Monitor Monitors the reception status of CAN communication viewed from BCM. Refer to CONSULT-III opera-
tion manual.
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  Read and save the vehicle specification.
 Write the vehicle specification when replacing BCM.
System Sub system selection item Diagnosis mode
Work Support Data Monitor Active Test
Door lock DOOR LOCK ×××
Rear window defo gger REAR DEFOGGER ××
Warning chime BUZZER ××
Interior room lamp timer INT LAMP ×××
Exterior lamp HEAD LAMP ×××
Wiper and washer WIPER ×××
Turn signal and hazard warning lamps FLASHER ×××
— AIR CONDITONER* ××
 Intelligent Key system
 Engine start system INTELLIGENT KEY
×××
Combination switch COMB SW ×
Body control system BCM ×
NATS IMMU ×××
Interior room lamp battery saver BATTERY SAVER ×××
Back door TRUNK ×
Vehicle security system THEFT ALM ×××
RAP system RETAINED PWR ×
Signal buffer system SIGNAL BUFFER ××
Revision: 2010 May2011 QX56

BCM (BODY CONTROL MODULE)PWC-13
< ECU DIAGNOSIS INFORMATION >
C
DE
F
G H
I
J
L
M A
B
PWC
N
O P
ECU DIAGNOSIS INFORMATION
BCM (BODY CONTROL MODULE)
List of ECU ReferenceINFOID:0000000006217271
ECU Reference
BCM BCS-33, "
Reference Value"
BCS-54, "Fail-safe"
BCS-56, "DTCInspectionPriorityChart"
BCS-57, "DTCIndex"
Revision: 2010 May2011 QX56

PWC-14
< ECU DIAGNOSIS INFORMATION >
POWER WINDOW MAIN SWITCH
POWER WINDOW MAIN SWITCH
Reference Value INFOID:0000000006217272
TERMINAL LAYOUT
PHYSICAL VALUES
POWER WINDOW MAIN SWITCH
LIIA2455E
Te r m i n a l N o .(wire color) Description
ConditionVoltage [V]
(Approx.)
+ - Signal name Input/
Output
2
(W/B) Ground Encoder ground — — 0
4
(R) Ground Door key cylinder switch
LOCK signal
InputKey position
(Neutral
→Locked) 5
→ 0
6
(W) Ground
Door key cylinder switch UN-
LOCK signal Input
Key position
(Neutral
→Unlocked) 5
→ 0
8
(L) Ground Front driver side power win-
dow motor UP signal
OutputWhen front LH switch in
power window main
switch is
operated UP 12
9
(G/W) Ground Encoder pulse signal 2 Input When power window mo-
tor operates.
10
(Y) Ground Retained power signal Input IGN SW ON 12
Within 45 second after ig-
nition switch is turned to
OFF
12
When driver side or pas-
senger side door is
opened during retained
power operation 0
11
(G) Ground
Front driver side power win-
dow motor DOWN signal OutputWhen front LH switch in
power window main
switch is
operated DOWN 12
JMKIA0070GB
Revision: 2010 May2011 QX56

POWER WINDOW MAIN SWITCHPWC-15
< ECU DIAGNOSIS INFORMATION >
C
DE
F
G H
I
J
L
M A
B
PWC
N
O P
Fail-safeINFOID:0000000006217273
FAIL-SAFE CONTROL
Switches to fail-safe control when malfunction is detected in encoder signal that detects up/down speed and
direction of door glass. Switches to fail-safe control w hen a signal that is out of the specified value is detected
between the fully closed position and the actual position of the glass.
If fail-safe control, the system changes to a non-in itialized condition and the following function do not operate.
 Auto-up operation
 Anti-pinch function
 Retained power function
When fail-safe control is activated, perform initialization procedure to recover. If a malfunction is detected in
power window switch or more, fail-safe control is activated again.
13
(G/Y) Ground Encoder pulse signal 1 Input When power window mo-
tor operates.
14
(V) Ground Power window serial link Input/
Output IGN SW ON or power win-
dow timer operating.
15
(G/R) Ground Encoder power supply Output When ignition switch ON
or power window timer op-
erates.12
17
(B) Ground Ground — — 0
19
(W) Ground Battery power supply Input — 12
Te r m i n a l N o .
(wire color) Description
ConditionVoltage [V]
(Approx.)
+ - Signal name Input/
Output
JMKIA0070GB
JPMIA0013GB
Malfunction Malfunction condition
Pulse sensor malfunction When one pulse signal that is the specified value or more is detected continuously for the specified
time or more, while door glass is being operated UP or DOWN.
Both pulse sensors mal-
function When both pulse signals are not detected continuously for the specified time or more, while door
glass is being operated UP or DOWN.
Pulse direction malfunc-
tion When a pulse signal indicating that window is moving in the opposite direction against the power win-
dow motor is detected for the specified value or more, while door glass is being operated UP or
DOWN.
Glass recognition position
malfunction 1 When the actual door glass position that is out of specified value is detected compared to the door
glass fully closed position memorized in module, while door glass is being operated UP or DOWN.
Glass recognition position
malfunction 2 When pulse count that is out of the door glass full stroke value or more is detected, while door glass
is being operated UP or DOWN.
Revision: 2010 May2011 QX56

PWC-16
< ECU DIAGNOSIS INFORMATION >
FRONT POWER WINDOW SWITCH (PASSENGER SIDE)
FRONT POWER WINDOW SWITCH (PASSENGER SIDE)
Reference Value INFOID:0000000006217274
TERMINAL LAYOUT
PHYSICAL VALUES
FRONT POWER WINDOW SWITCH
JMKIA3330ZZ
Te r m i n a l N o .(wire color) Description
ConditionVoltage [V]
(Approx.)
+ - Signal name Input/
Output
3
(W/B) Ground Encoder ground — — 0
4
(G/R) Ground Encoder power supply Output When ignition switch ON or
power window timer operates 12
8
(L) Ground Power window motor
UP signal
OutputWhen power window motor is
operated UP
12
9
(G) Ground
Power window motor
DOWN signal Output
When power window motor is
operated DOWN 12
10
(W) Ground Battery power supply Input — 12
11
(B) Ground Ground — — 0
12
(G/Y) Ground Encoder pulse signal 1 Input
When power window motor
operates
JMKIA0070GB
Revision: 2010 May2011 QX56

FRONT POWER WINDOW SWITCH (PASSENGER SIDE)PWC-17
< ECU DIAGNOSIS INFORMATION >
C
DE
F
G H
I
J
L
M A
B
PWC
N
O P
Fail-safeINFOID:0000000006217275
FAIL-SAFE CONTROL
Switches to fail-safe control when malfunction is detected in encoder signal that detects up/down speed and
direction of door glass. Switches to fail-safe control w hen a signal that is out of the specified value is detected
between the fully closed position and the actual position of the glass.
If fail-safe control, the system changes to a non-in itialized condition and the following function do not operate.
 Auto-up operation
 Anti-pinch function
 Retained power function
When fail-safe control is activated, perform initialization procedure to recover. If a malfunction is detected in
power window switch or more, fail-safe control is activated again.
15
(G/W) Ground Encoder pulse signal 2 Input When power window motor
operates
16
(V) Ground Power window serial link Input/
Output When ignition switch ON or
power window timer operates
Te r m i n a l N o .
(wire color) Description
ConditionVoltage [V]
(Approx.)
+ - Signal name Input/
Output
JMKIA0070GB
JPMIA0013GB
Malfunction Malfunction condition
Pulse sensor malfunction When one pulse signal that is the specified value or more is detected continuously for the specified
time or more, while door glass is being operated UP or DOWN.
Both pulse sensors mal-
function When both pulse signals are not detected continuously for the specified time or more, while door
glass is being operated UP or DOWN.
Pulse direction malfunc-
tion When a pulse signal indicating that window is moving in the opposite direction against the power win-
dow motor is detected for the specified value or more, while door glass is being operated UP or
DOWN.
Glass recognition position
malfunction 1 When the actual door glass position that is out of specified value is detected compared to the door
glass fully closed position memorized in module, while door glass is being operated UP or DOWN.
Glass recognition position
malfunction 2 When pulse count that is out of the door glass full stroke value or more is detected, while door glass
is being operated UP or DOWN.
Revision: 2010 May2011 QX56

PWC-18
< ECU DIAGNOSIS INFORMATION >
REAR POWER WINDOW SWITCH LH
REAR POWER WINDOW SWITCH LH
Reference Value INFOID:0000000006217276
TERMINAL LAYOUT
PHYSICAL VALUES
REAR POWER WINDOW SWITCH
JMKIA3330ZZ
Te r m i n a l N o .(wire color) Description
ConditionVoltage [V]
(Approx.)
+ - Signal name Input/
Output
3
(SB) Ground Encoder ground — — 0
4
(LG) Ground Encoder power supply Output When ignition switch ON or pow-
er window timer operates
12
8
(Y) Ground
Power window motor
UP signal Output
When power window motor is
operated UP 12
9
(G) Ground Power window motor
DOWN signal OutputWhen power window motor is
operated DOWN 12
10
(W) Ground Battery power supply Input — 12
11
(B) Ground Ground — — 0
12
(BR) Ground Encoder pulse signal 1 Input When power window motor oper-
ates
JMKIA0070GB
Revision: 2010 May2011 QX56

REAR POWER WINDOW SWITCH LHPWC-19
< ECU DIAGNOSIS INFORMATION >
C
DE
F
G H
I
J
L
M A
B
PWC
N
O P
Fail-safeINFOID:0000000006217277
FAIL-SAFE CONTROL
Switches to fail-safe control when malfunction is detected in encoder signal that detects up/down speed and
direction of door glass. Switches to fail-safe control w hen a signal that is out of the specified value is detected
between the fully closed position and the actual position of the glass.
If fail-safe control, the system changes to a non-in itialized condition and the following function do not operate.
 Auto-up operation
 Anti-pinch function
 Retained power function
When fail-safe control is activated, perform initialization procedure to recover. If a malfunction is detected in
power window switch or more, fail-safe control is activated again.
15
(L) Ground Encoder pulse signal 2 Input When power window motor oper-
ates.
16
(V) Ground Power window serial link Input/
Output When ignition switch ON or pow-
er window timer operates
Te r m i n a l N o .
(wire color) Description
ConditionVoltage [V]
(Approx.)
+ - Signal name Input/
Output
JMKIA0070GB
JPMIA0013GB
Malfunction Malfunction condition
Pulse sensor malfunction When one pulse signal that is the specified value or more is detected continuously for the specified
time or more, while door glass is being operated UP or DOWN.
Both pulse sensors mal-
function When both pulse signals are not detected continuously for the specified time or more, while door
glass is being operated UP or DOWN.
Pulse direction malfunc-
tion When a pulse signal indicating that window is moving in the opposite direction against the power win-
dow motor is detected for the specified value or more, while door glass is being operated UP or
DOWN.
Glass recognition position
malfunction 1 When the actual door glass position that is out of specified value is detected compared to the door
glass fully closed position memorized in module, while door glass is being operated UP or DOWN.
Glass recognition position
malfunction 2 When pulse count that is out of the door glass full stroke value or more is detected, while door glass
is being operated UP or DOWN.
Revision: 2010 May2011 QX56

PWC-20
< ECU DIAGNOSIS INFORMATION >
REAR POWER WINDOW SWITCH RH
REAR POWER WINDOW SWITCH RH
Reference Value INFOID:0000000006217278
TERMINAL LAYOUT
PHYSICAL VALUES
REAR POWER WINDOW SWITCH
JMKIA3330ZZ
Te r m i n a l N o .(wire color) Description
ConditionVoltage [V]
(Approx.)
+ - Signal name Input/
Output
3
(P) Ground Encoder ground — — 0
4
(Y) Ground Encoder power supply Output When ignition switch ON or pow-
er window timer operates
12
8
(W/R) Ground
Power window motor
UP signal Output
When power window motor is
operated UP 12
9
(R) Ground Power window motor
DOWN signal OutputWhen power window motor is
operated DOWN 12
10
(W) Ground Battery power supply Input — 12
11
(B) Ground Ground — — 0
12
(O) Ground Encoder pulse signal 1 Input When power window motor oper-
ates
JMKIA0070GB
Revision: 2010 May2011 QX56

REAR POWER WINDOW SWITCH RHPWC-21
< ECU DIAGNOSIS INFORMATION >
C
DE
F
G H
I
J
L
M A
B
PWC
N
O P
Fail-safeINFOID:0000000006217279
FAIL-SAFE CONTROL
Switches to fail-safe control when malfunction is detected in encoder signal that detects up/down speed and
direction of door glass. Switches to fail-safe control w hen a signal that is out of the specified value is detected
between the fully closed position and the actual position of the glass.
If fail-safe control, the system changes to a non-in itialized condition and the following function do not operate.
 Auto-up operation
 Anti-pinch function
 Retained power function
When fail-safe control is activated, perform initialization procedure to recover. If a malfunction is detected in
power window switch or more, fail-safe control is activated again.
15
(G) Ground Encoder pulse signal 2 Input When power window motor oper-
ates.
16
(V) Ground Power window serial link Input/
Output When ignition switch ON or pow-
er window timer operates
Te r m i n a l N o .
(wire color) Description
ConditionVoltage [V]
(Approx.)
+ - Signal name Input/
Output
JMKIA0070GB
JPMIA0013GB
Malfunction Malfunction condition
Pulse sensor malfunction When one pulse signal that is the specified value or more is detected continuously for the specified
time or more, while door glass is being operated UP or DOWN.
Both pulse sensors mal-
function When both pulse signals are not detected continuously for the specified time or more, while door
glass is being operated UP or DOWN.
Pulse direction malfunc-
tion When a pulse signal indicating that window is moving in the opposite direction against the power win-
dow motor is detected for the specified value or more, while door glass is being operated UP or
DOWN.
Glass recognition position
malfunction 1 When the actual door glass position that is out of specified value is detected compared to the door
glass fully closed position memorized in module, while door glass is being operated UP or DOWN.
Glass recognition position
malfunction 2 When pulse count that is out of the door glass full stroke value or more is detected, while door glass
is being operated UP or DOWN.
Revision: 2010 May2011 QX56