2011 INFINITI QX56 ground

PWO-16
< ECU DIAGNOSIS INFORMATION >[AC 120 V OUTLET]
INVERTER UNIT
ECU DIAGNOSIS INFORMATION
INVERTER UNIT
Reference ValueINFOID:0000000006257074
TERMINAL LAYOUT
PHYSICAL VALUES
JSMIA0395ZZ
Te r m i n a l N o .
(Wire color) Description
Condition Va l u e
(Approx.)
+ − Signal name Input/
Output
1
(R) 5
(G) AC 120 V output Output Ignition
switch
ON When AC 120 V outlet
main switch OFF
0 V
When AC 120 V outlet
main switch ON
(When using circuit tester) AC 120 V
When AC 120 V outlet
main switch ON
(When using oscilloscope) Reference value
AC 120 V
4
(G/R) Ground Battery power supply Input Ignition switch OFF Battery power supply
5
(G) 1
(R) AC 120 V output Output Ignition
switch ON When AC 120 V outlet
main switch OFF
0 V
When AC 120 V outlet
main switch ON
(When using circuit tester) AC 120 V
When AC 120 V outlet
main switch ON
(When using oscilloscope) Reference value
AC 120 V
JSMIA0397GB
JSMIA0397GB
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
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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

RF-1
BODY EXTERIOR, DOORS, ROOF & VEHICLE SECURITY
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SECTION RF
A
B
RF
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CONTENTS
ROOF
PRECAUTION ................ ...............................3
PRECAUTIONS .............................................. .....3
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ............................................................. ......
3
PREPARATION ............................................4
PREPARATION .............................................. .....4
Commercial Service Tool .................................... ......4
SYSTEM DESCRIPTION ..............................5
COMPONENT PARTS ................................... .....5
Component Parts Location ................................ ......5
Component Description ............................................5
SYSTEM ..............................................................6
System Diagram ................................................. ......6
System Description ...................................................6
ECU DIAGNOSIS INFORMATION ...............7
BCM (BODY CONTROL MODULE) ............... .....7
List of ECU Reference ........................................ ......7
SUNROOF SYSTEM ...................................... .....8
Reference Value ................................................. ......8
WIRING DIAGRAM .......................................9
SUNROOF MOTOR ASSEMBLY ................... .....9
Wiring Diagram ................................................... ......9
BASIC INSPECTION ...................................16
DIAGNOSIS AND REPAIR WORKFLOW ..... ....16
WorkFlow ............................................................ ....16
INSPECTION AND ADJUSTMENT ....................17
ADDITIONAL SERVICE WHEN REPLACING
CONTROL UNIT .................................................... ....
17
ADDITIONAL SERVICE WHEN REPLACING
CONTROL UNIT : Description .................................
17
ADDITIONAL SERVICE WHEN REPLACING
CONTROL UNIT : Special Repair Requirement ......
17
DTC/CIRCUIT DIAGNOSIS .........................18
POWER SUPPLY AND GROUND CIRCUIT ....18
Diagnosis Procedure .......................................... ....18
VEHICLE SPEED SIGNAL CIRCUIT ................20
Component Function Check ..................................20
Diagnosis Procedure ..............................................20
SUNROOF SWITCH ..........................................21
Component Function Check ..................................21
Diagnosis Procedure ..............................................21
Component Inspection .............................................22
SYMPTOM DIAGNOSIS ..............................23
SUNROOF DOES NOT OPERATE PROPER-
LY ......................................................................
23
Description ........................................................... ....23
Diagnosis Procedure ...............................................23
SUNROOF DOES NOT OPERATE ANTI-
PINCH FUNCTION ............................................
24
Diagnosis Procedure ........................................... ....24
RETAINED POWER OPERATION DOES NOT
OPERATE PROPERLY .....................................
25
Diagnosis Procedure ...............................................25
SQUEAK AND RATTLE TROUBLE DIAG-
NOSES ..............................................................
26
Work Flow ................................................................26
Inspection Procedure ...............................................28
Diagnostic Worksheet ..............................................30
REMOVAL AND INSTALLATION ...............32
GLASS LID ........................................................32
Revision: 2010 May2011 QX56