turn signal INFINITI QX56 2011 Factory Service Manual

PWO
SYSTEMPWO-15
< SYSTEM DESCRIPTION > [AC 120 V OUTLET]
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SYSTEM
System DescriptionINFOID:0000000006257071
SYSTEM DIAGRAM
SYSTEM DESCRIPTION
 When turning ON the AC 120 V outlet main switch with the ignition switch ON, the indicator turns ON and the
inverter unit is activated.
 The inverter unit converts power supply voltage to AC 120 V and outputs the converted voltage to the AC
120 V outlet two seconds after the AC 120 V outlet main switch is turned ON.
Fail-safeINFOID:0000000006257269
When a malfunction listed below occurs, the inverter unit turns OFF the AC 120 V outlet main switch indicator
and stops the output by operating the fail-safe.
JSMIA0295GB
Malfunction item Fail-safe condition Fail-safe cancellation condition
Inverter unit is overheat-
ed When the inverter unit is overheated, the output
stops to protect the inverter unit. After the inverter unit temperature is lowered, the
AC 120 V outlet main switch ON
⇒ OFF ⇒ ON op-
eration allows normal return.
Inverter unit power sup-
ply voltage is 11.5 V or
less When inverter unit input voltage is lowered, the out-
put stops to protect the battery from running out.
Automatic normal return wh
en inverter unit power
supply voltage reaches 11.5 V - 16 V.
Inverter unit power sup-
ply voltage is 16 V - 18 V When inverter unit input voltage reaches 16 V - 18 V,
the output stops to protect the inverter unit. Automatic normal return wh
en inverter unit power
supply voltage reaches 11.5 V - 16 V.
Inverter unit power sup-
ply voltage is 18 V or
more When inverter unit input voltage reaches 18 V or
more, the output stops to protect the inverter unit. After the inverter unit power supply voltage reaches
11.5 V - 16 V, the AC 120 V outlet main switch ON
⇒
OFF ⇒ ON operation allows normal return.
Inverter unit output cur-
rent is 2.8 A or more When inverter unit output current reaches 2.8 A or
more, the output stops to prevent over current. (e.g.
connecting an electric appliance exceeding rated
output)
Automatic normal return wh
en inverter output cur-
rent reaches 2.8 A.
Inverter unit output signal
(AC 120 V output signal)
is shorted When inverter unit output signal is shorted, the out-
put stops. After recovering from inverter unit output signal
short, the AC 120 V outlet main switch ON
⇒ OFF
⇒ ON operation allows normal return.
Revision: 2010 May2011 QX56

PWO
INVERTER UNITPWO-17
< ECU DIAGNOSIS INFORMATION > [AC 120 V OUTLET]
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CAUTION:
 To measure AC 120 V output signal, always use th
e circuit tester or oscilloscope AC range.
Never allow the probes to contact each other.
 Because of modified sine wave output of the AC 120 V output signal, voltage cannot be measured
accurately without using a circuit tester that can measure true RMS (root mean square).
Fail-safeINFOID:0000000006257075
When a malfunction listed below occurs, the inverter unit turns OFF the AC 120 V outlet main switch indicator
and stops the output by operating the fail-safe.
6
(W)
Ground AC 120 V outlet main
switch
InputIgnition
switch ON When AC 120 V outlet
main switch OFF
0 V
When AC 120 V outlet
main switch ON 12 V
7
(O) AC 120 V outlet main
switch indicator
OutputIgnition
switch ON When AC 120 V outlet
main switch OFF
0 V
When AC 120 V outlet
main switch ON 5.2 V
8
(G/Y) Ground — Ignition switch ON 0 V
Te r m i n a l N o .
(Wire color) Description
Condition Va l u e
(Approx.)
+ − Signal name Input/
Output
Malfunction item Fail-safe condition Fail-safe cancellation condition
Inverter unit is overheat-
ed When the inverter unit is overheated, the output
stops to protect the inverter unit. After the inverter unit temperature is lowered, the
AC 120 V outlet main switch ON
⇒ OFF ⇒ ON op-
eration allows normal return.
Inverter unit power sup-
ply voltage is 11.5 V or
less When inverter unit input voltage is lowered, the out-
put stops to protect the battery from running out.
Automatic normal return wh
en inverter unit power
supply voltage reaches 11.5 V - 16 V.
Inverter unit power sup-
ply voltage is 16 V - 18 V When inverter unit input voltage reaches 16 V - 18 V,
the output stops to protect the inverter unit. Automatic normal return wh
en inverter unit power
supply voltage reaches 11.5 V - 16 V.
Inverter unit power sup-
ply voltage is 18 V or
more When inverter unit input voltage reaches 18 V or
more, the output stops to protect the inverter unit. After the inverter unit power supply voltage reaches
11.5 V - 16 V, the AC 120 V outlet main switch ON
⇒
OFF ⇒ ON operation allows normal return.
Inverter unit output cur-
rent is 2.8 A or more When inverter unit output current reaches 2.8 A or
more, the output stops to prevent over current. (e.g.
connecting an electric appliance exceeding rated
output) Automatic normal return wh
en inverter output cur-
rent reaches 2.8 A.
Inverter unit output signal
(AC 120 V output signal)
is shorted When inverter unit output signal is shorted, the out-
put stops. After recovering from inverter unit output signal
short, the AC 120 V outlet main switch ON
⇒ OFF
⇒ ON operation allows normal return.
Revision: 2010 May2011 QX56

PWO
POWER SUPPLY AND GROUND CIRCUITPWO-23
< DTC/CIRCUIT DIAGNOSIS > [AC 120 V OUTLET]
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DTC/CIRCUIT DIAGNOSIS
POWER SUPPLY AND GROUND CIRCUIT
Diagnosis ProcedureINFOID:0000000006257089
1.CHECK FUSE
Check that the following fuse is not blown.
Is the fuse fusing?
YES >> Replace the blown fuse after repairing the affected circuit if a fuse is blown.
NO >> GO TO 2.
2.CHECK INVERTER UNIT POWER SUPPLY CIRCUIT
Check voltage between inverter unit harness connector and ground.
Is the inspection result normal?
YES >> GO TO 3.
NO >> Repair or replace the inverter unit power supply circuit.
3.CHECK INVERTER UNIT GROUND CIRCUIT
1. Turn the ignition switch OFF.
2. Disconnect the inverter unit connector.
3. Check for continuity between inverter unit harness connector and ground.
Is the inspection result normal?
YES >> INSPECTION END
NO >> Repair or replace the inverter unit ground circuit.
Signal name Fuse No.
Battery power supply 79
Te r m i n a l Condition
Vo l ta g e
(Approx.)
(+) (–)
Inverter unit GroundIgnition switch
Connector Terminal
M143 4 OFF Battery voltage
Inverter unit GroundContinuity
Connector Terminal
M143 8 Existed
Revision: 2010 May2011 QX56

PWO-24
< DTC/CIRCUIT DIAGNOSIS >[AC 120 V OUTLET]
AC 120 V OUTLET MAIN SWITCH POWER SUPPLY CIRCUIT
AC 120 V OUTLET MAIN SWITCH
POWER SUPPLY CIRCUIT
Diagnosis ProcedureINFOID:0000000006257095
1.CHECK FUSE
Check that the following fuse is not blown.
Is the fuse fusing?
YES >> Replace the blown fuse after repairing the affected circuit if a fuse is blown.
NO >> GO TO 2.
2.CHECK POWER SUPPLY FOR AC 120 V OUTLET MAIN SWITCH
1. Turn ignition switch ON.
2. Check for voltage between the AC 120 V main switch harness connector and ground.
Is the inspection result normal?
YES >> INSPECTION END
NO >> Repair the AC 120 V main switch power supply circuit.
Signal name Fuse No.
Ignition power supply 3
Te r m i n a l s Condition
Vo l ta g e
(Approx.)
(+) (–)
AC 120 V outlet main switch
GroundIgnition switch
Connector Terminal
M144 1 OFF 0 V
ON 12 V
Revision: 2010 May2011 QX56

PWO
AC 120 V OUTLET MAIN SWITCH INPUT SIGNAL CIRCUITPWO-25
< DTC/CIRCUIT DIAGNOSIS > [AC 120 V OUTLET]
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AC 120 V OUTLET MAIN SWITCH
INPUT SIGNAL CIRCUIT
Diagnosis ProcedureINFOID:0000000006257093
1.CHECK HARNESS BETWEEN INVERTER UNIT AND AC 120 V OUTLET MAIN SWITCH
1. Turn ignition switch OFF.
2. Disconnect inverter unit connector and AC 120 V outlet main switch connector.
3. Check for continuity between the inverter unit harness connector and AC 120 V outlet main switch har- ness connector.
4. Check for continuity between inverter unit harness connector and ground.
Is the inspection result normal?
YES >> GO TO 2.
NO >> Repair the harnesses or connectors.
2.CHECK AC 120 V OUTLET MAIN SWITCH INPUT SIGNAL
1. Connect inverter unit connector and AC 120 V outlet main switch connector.
2. Turn ignition switch ON.
3. AC 120 V outlet main switch ON.
4. Check for voltage between the inverter unit harness connector and ground.
Is the inspection result normal?
YES >> INSPECTION END
NO >> GO TO 3.
3.CHECK AC 120 V OUTLET MAIN SWITCH
1. Turn ignition switch OFF.
2. Remove AC 120 V outlet main switch.
3. Check AC 120 V outlet main switch. Refer to PWO-25, "
Component Inspection".
Is the inspection result normal?
YES >> INSPECTION END
NO >> Replace AC 120 V outlet main switch.
Component InspectionINFOID:0000000006257096
1.CHECK AC 120 V OUTLET MAIN SWITCH
Check continuity of AC 120 V outlet main switch.
Inverter unit AC 120 V outlet main switch Continuity
Connector Terminal Connector Terminal
M1436M1443Existed
Inverter unit GroundContinuity
Connector Terminal
M143 6 Not existed
Te r m i n a l s Condition
Vol tag e
(Approx.)
(+) (–)
Inverter unit
GroundAC 120 V out-
let main switch
Connector Terminal
M143 6 OFF 0 V
ON 12 V
Revision: 2010 May2011 QX56

PWO
AC 120 V POWER OUTPUT CIRCUIT
PWO-27
< DTC/CIRCUIT DIAGNOSIS > [AC 120 V OUTLET]
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AC 120 V POWER OUTPUT CIRCUIT
Diagnosis ProcedureINFOID:0000000006257091
1.CHECK HARNESS BETWEEN INVERTER UNIT AND AC 120 V OUTLET
1. Turn ignition switch OFF.
2. Disconnect inverter unit connector and AC 120 V outlet connector.
3. Check for continuity between the inverter uni t harness connector and AC 120 V outlet harness connector.
4. Check for continuity between inverter unit harness connector and ground.
5. Check for continuity between inverter unit harness connector.
Is the inspection result normal?
YES >> GO TO 2.
NO >> Repair or replace the harnesses or connectors.
2.CHECK INVERTER UNIT OUTPUT SIGNAL
1. Connect inverter unit connector and AC 120 V outlet connector.
2. Turn ignition switch ON.
3. AC 120 V outlet main switch ON. (AC 120 V outlet main switch indicator ON)
4. Check voltage between inverter unit harness connector.
CAUTION:
 To measure AC 120 V output signal, al ways use the circuit tester AC range.
 Never allow the probes to contact each other.
Is the inspection result normal?
YES >> GO TO 3
NO >> Replace inverter unit.
3.CHECK AC 120 V OUTLET VOLTAGE
1. AC 120 V outlet main switch ON. (AC 120 V outlet main switch indicator ON)
2. Check voltage between AC 120 V outlet.
Inverter unit AC 120 V outlet Continuity
Connector Terminal Connector Terminal
M143 5
M145 1
Existed
12
Inverter unit GroundContinuity
Connector Terminal
M143 5
Not existed
1
Inverter unit Continuity
Connector Terminal
M143 5 1 Not existed
Te r m i n a l s Condition
Vo l ta g e
(Approx.)
(+) (-)
Inverter unit Inverter unit AC 120 V outlet
main switch
Connector Terminal Connector Terminal
M1435M1431 OFF 0 V
ON AC 120 V
Revision: 2010 May2011 QX56

PWO
AC 120 V OUTLET MAIN SWITCH INDICATOR CIRCUIT
PWO-29
< DTC/CIRCUIT DIAGNOSIS > [AC 120 V OUTLET]
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AC 120 V OUTLET MAIN SWITCH INDICATOR CIRCUIT
Diagnosis ProcedureINFOID:0000000006257098
1.CHECK HARNESS BETWEEN IN
VERTER UNIT AND AC 120 V OUTLET MAIN SWITCH
1. Turn ignition switch OFF.
2. Disconnect inverter unit connector and AC 120 V outlet main switch connector.
3. Check continuity between inverter unit harness connector and AC 120 V main switch harness connector.
4. Check continuity between inverter unit harness connector and ground.
Is the inspection result normal?
YES >> GO TO 2.
NO >> Repair the harnesses or connectors.
2.CHECK AC 120 V OUTLET MAIN SWITCH GROUND CIRCUIT
Check continuity between AC 120 V outle t main switch harness connector and ground.
Is the inspection result normal?
YES >> GO TO 3.
NO >> Repair the harnesses or connectors.
3.CHECK AC 120 V OUTLET MAIN SWITCH INDICATOR OUTPUT SIGNAL
1. Connect AC 120 V outlet main switch connector and inverter unit connector.
2. Turn ignition switch ON.
3. AC 120 V outlet main switch ON. (AC 120 V output is normal)
4. Check for voltage between the inverter unit harness connector and ground.
Is the inspection result normal?
YES >> GO TO 4.
NO >> Replace inverter unit.
4.CHECK AC 120 V OUTLET MAIN SWITCH INDICATOR
1. AC 120 V outlet main switch ON. (AC 120 V output is normal)
2. Check that AC 120 V outlet main switch indicator is illuminated.
Is the inspection result normal?
Inverter unit AC 120 V outlet main switch Continuity
Connector Terminal Connector Terminal
M1437M1445Existed
Inverter unit GroundContinuity
Connector Terminal
M143 7 Not existed
AC 120 V outlet main switch GroundContinuity
Connector Terminal
M144 6 Existed
Te r m i n a l s Condition
Vol tag e
(Approx.)
(+) (–)
Inverter unit
GroundAC 120 V out-
let main
switch
Connector Terminal
M143 7 OFF 0 V
ON 5.2 V
Revision: 2010 May2011 QX56

PWO-32
< SYMPTOM DIAGNOSIS >[AC 120 V OUTLET]
AC 120 V OUTLET MAIN SWITCH INDICATOR DOES NOT TURN ON
AC 120 V OUTLET MAIN SWITCH
INDICATOR DOES NOT TURN ON
Diagnosis ProcedureINFOID:0000000006257110
1.CHECK FAIL-SAFE ACTIVATION
Check if the symptom is caused by a fail-safe operation. Refer to PWO-17, "
Fail-safe".
Is fail-safe operating?
YES >> Repair the part causing fail-safe operation.
NO >> GO TO 2.
2.CHECK INVERTER UNIT POWER SUPPLY CIRCUIT
Check inverter unit power supply circuit. Refer to PWO-23, "
Diagnosis Procedure".
Is the inspection result normal?
YES >> GO TO 3.
NO >> Repair or replace the malfunctioning parts.
3.CHECK AC 120 V OUTLET MAIN SWITCH POWER SUPPLY CIRCUIT
Check AC 120 V outlet main switch power supply circuit. Refer to PWO-24, "
Diagnosis Procedure".
Is the inspection result normal?
YES >> GO TO 4.
NO >> Repair or replace the malfunctioning parts.
4.CHECK AC 120 V OUTLET MAIN SWITCH INPUT SIGNAL CIRCUIT
Check AC 120 V outlet main switch input signal circuit. Refer to PWO-25, "
Diagnosis Procedure".
Is the inspection result normal?
YES >> GO TO 5.
NO >> Repair or replace the malfunctioning parts.
5.CHECK AC 120 V OUTLET MAIN SWITCH INDICATOR CIRCUIT
Check AC 120 V outlet main switch indicator circuit. Refer to PWO-29, "
Diagnosis Procedure".
Is the inspection result normal?
YES >> Refer to GI-40, "Intermittent Incident".
NO >> Repair or replace the malfunctioning parts.
Revision: 2010 May2011 QX56

RF-6
< SYSTEM DESCRIPTION >
SYSTEM
SYSTEM
System DiagramINFOID:0000000006141224
SUNROOF
System DescriptionINFOID:0000000006141225
SUNROOF SYSTEM
 Sunroof motor assembly operates with the power supply that is output from BCM while ignition switch is ON
or retained power is operating.
 Tilt up/down & slide open/close signals from sunroof s witch enables operate sunroof motor to move arbi-
trarily.
 Sunroof motor assembly receives a vehicle speed signal from combination meter and controls the sunroof motor operation.
AUTO OPERATION
Sunroof AUTO feature makes it possible to slide open and slide close or tilt up and tilt down the sunroof with-
out holding the sunroof switch in the slide open/tilt down or slide close/tilt up position.
RETAINED POWER OPERATION
 Retained power operation is an additional power supply function that enables sunroof system to operate dur-
ing 45 seconds even when ignition switch is turned OFF.
Retained power function cancel conditions
 Front door CLOSE (door switch OFF) →OPEN (door switch ON).
 When ignition switch is ON again.
 When timer time passes. (45 seconds)
ANTI-PINCH FUNCTION
The CPU of sunroof motor assembly monitors the s unroof motor operation and the sunroof position (fully-
closed or other) by the signals from sunroof motor.
When sunroof motor detects an interruption during the following slide close and tilt down operation, sunroof
switch controls the motor for open and the sunroof will operate until full up position (when tilt down operate) or
150 mm (5.91 in) or more in an open direction (when slide close operate):
JMKIA5324GB
Revision: 2010 May2011 QX56

RF-8
< ECU DIAGNOSIS INFORMATION >
SUNROOF SYSTEM
SUNROOF SYSTEM
Reference ValueINFOID:0000000006141227
TERMINAL LAYOUT
PHYSICAL VALUES
JMKIA2225ZZ
Te r m i n a l N o .(Wire color) Description
ConditionVoltage (V)
(Approx.)
+ – Signal name Input/
Output
1
(B) Ground Ground — — 0
3
(Y) Ground Retained power signal Input Ignition switch ON
12
Within 45 seconds after ignition
switch is turned to OFF
When driver side or passenger side
door is opened during retained pow-
er operation 0
5
(P) Ground Sunroof open signal Input Sunroof switch in following position
TILT DOWN
 SLIDE OPEN
0
Ignition switch ON 12
6
(W) Ground Sunroof power supply Input — 12
8
(SB) Ground Vehicle speed signal (2-
pulse)
InputSpeedometer operated [When vehi-
cle speed is approx.40km/ h
(25MPH)]
10
(GR) Ground Sunroof close signal Input Sunroof switch in following position
TILT UP
 SLIDE CLOSE
0
Ignition switch ON 12
ELF1080D
Revision: 2010 May2011 QX56