INFINITI QX56 2006 Factory Service Manual

RF-16
SUNROOF
Revision: November 20092006 QX56
CONSULT-II Function (BCM)EIS004VW
CONSULT-II can display each diagnostic item using the diagnostic test modes shown following.
CONSULT-II OPERATION
CAUTION:
If CONSULT-II is used with no connection of CONSULT-II CONVERTER, malfunctions might be
detected in self-diagnosis depending on control unit which carries out CAN communication.
1. With the ignition switch OFF, connect CONSULT-II and CON-
SULT-II CONVERTER to the data link connector, then turn igni-
tion switch ON.
2. Touch "START (NISSAN BASED VHCL)".
3. Touch "BCM". If "BCM" is not indicated, go to GI-40, "
CONSULT-II Data Link
Connector (DLC) Circuit" .
BCM diagnostic
test item Diagnostic mode
Description
Inspection by part WORK SUPPORT
Supports inspections and adjustments. Commands are transmitted to the BCM
for setting the status suitable for required operation, input/output signals are
received from the BCM and received data is displayed.
DATA MONITOR Displays BCM input/output data in real time. ACTIVE TEST Operation of electrical loads can be checked by sending drive signal to them.
SELF-DIAG RESULTS Displays BCM self-diagnosis results.
CAN DIAG SUPPORT MNTR The result of transmit/receive diagnosis of CAN communication can be read. ECU PART NUMBER BCM part number can be read.CONFIGURATION Performs BCM configuration read/write functions.
BBIA0369E
BCIA0029E
BCIA0030E

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Revision: November 2009 2006 QX56
4. Touch "RETAINED PWR".
5. Select diagnosis mode. "DATA MONITOR", "ACTIVE TEST" and
"WORK SUPPORT" are available.
Work Support EIS004VZ
Active TestEIS004VY
Data MonitorEIS004VX
Trouble Diagnosis Chart by SymptomEIS004W0
LIIA0163E
BCIA0031E
Work item Description
RETAINED PWR SET RAP signal
’s power supply period can be changed by mode setting. Selects RAP sig-
nal ’s power supply period between the following three steps:

MODE 1 (45 sec.) / MODE 2 (OFF) / MODE 3 (2 min.)
Test item Description
RETAINED PWR This test is able to supply RAP signal (power) from BCM to power window system,
power sunroof system. Those systems can be operated when turning on "RETAINED
PWR" on CONSULT-II screen even if the ignition switch is turned OFF.
NOTE:
During this test, CONSULT-II can be operated with ignition switch in "OFF"
position. "RETAINED PWR" should be turned "ON" or "OFF" on CONSULT-II
screen when ignition switch ON. Then turn ignition switch OFF for checking
retained power operation. CONSULT-II might be stuck if "RETAINED PWR" is
turned "ON" or "OFF" on CONSULT-II screen when ignition switch is OFF.
Monitored item
Description
IGN ON SW Indicates [ON/OFF] condition of ignition switch.
DOOR SW-DR Indicates [ON/OFF] condition of front door switch driver side.
DOOR SW-AS Indicates [ON/OFF] condition of front door switch passenger side.
SymptomDiagnostic procedure and repair order Refer to page
Sunroof does not operate. 1. Sunroof motor assembly power supply and ground
circuit check
RF-20
2. Sunroof switch system check
RF-19
3. BCM power supply and ground circuit checkRF-18
4. Replace sunroof motor assemblyRF-27

RF-18
SUNROOF
Revision: November 20092006 QX56
BCM Power Supply and Ground Circuit CheckEIS004W1
1. CHECK FUSE
Check the following BCM fuse and fusible link.
NOTE:
Refer to RF-10, "
Component Parts and Harness Connector Location" .
OK or NG
OK >> GO TO 2.
NG >> If fuse is blown, be sure to eliminate cause of problem before installing new fuse. Refer to PG-4,
"POWER SUPPLY ROUTING CIRCUIT" .
2. CHECK POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect BCM connectors.
3. Check voltage between BCM connectors M18 and M20 termi- nals 38, 70 and ground.
OK or NG
OK >> GO TO 3.
NG >> Repair or replace harness.
3. CHECK GROUND CIRCUIT
Check continuity between BCM connector M20 terminal 67 and
ground.
OK or NG
OK >> Power supply and ground circuit is OK.
NG >> Repair or replace harness.
Retained power operation does not operate properly. 1. Check the retained power operation mode setting
RF-112. BCM power supply and ground circuit checkRF-18
3. Door switch checkRF-21
4. Replace sunroof motor assemblyRF-27
Motor does not stop at the sunroof fully-open or fully-
closed position.1. Initialization procedure check
RF-11
2. Replace sunroof motor assemblyRF-27
Sunroof does not do the interruption detection.1. Replace sunroof motor assembly RF-27
SymptomDiagnostic procedure and repair order Refer to page
Component PartsTerminal No. (SIGNAL) AmpereNo. Location
BCM 38 (IGN power supply)
10A59 Fuse and relay box
70 (BAT power supply) 50Af Fuse and fusible link box
ConnectorTe r m i n a l s
ConditionVoltage
(Approx.)
(+) (– )
M18 38
Ground Ignition switch ON
Battery voltage
M20 70 Igniting switch OFF
WIIA0229E
Connector TerminalsContinuity
M20 67Ground YES
LIIA0915E

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Sunroof Switch System CheckEIS004W2
1. CHECK HARNESS CONTINUITY
1. Turn ignition switch OFF.
2. Disconnect sunroof motor assembly connector and sunroof switch connector.
3. Check continuity between sunroof motor assembly connector R4 terminals 3, 4, 8, 9 and 10 and sunroof switch connector R104 terminals 1, 2, 3, 4 and 6.
OK or NG
OK >> GO TO 2.
NG >> Repair or replace harness between sunroof motor assembly and sunroof switch.
2. CHECK SUNROOF SWITCH
Operate sunroof switch, and check continuity of the sunroof switch
as follows.
OK or NG
OK >> Sunroof switch and harness are OK. Refer to RF-17, "Trouble Diagnosis Chart by Symptom" .
NG >> Replace sunroof switch. 3 - 1
: Continuity should exist.
4 - 4 : Continuity should exist.
8 - 2 : Continuity should exist.
9 - 3 : Continuity should exist.
10 - 6 : Continuity should exist.
LIIA1245E
Terminals ConditionContinuity
1
2Sunroof switch in CLOSE position
Yes
Other than above No
3 Sunroof switch in OPEN position
Yes
Other than above No
4 Sunroof switch in TILT UP position
Yes
Other than above No
6 Sunroof switch in TILT DOWN position Yes
Other than above
No
WIIA0232E

RF-20
SUNROOF
Revision: November 20092006 QX56
Sunroof Motor Assembly Power Supply and Ground Circuit CheckEIS004W3
1. CHECK POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect the sunroof motor assembly connector.
3. Turn ignition switch ON.
4. Check voltage between sunroof motor assembly connector R4 terminals 1, 5 and ground.
OK or NG
OK >> GO TO 2.
NG >> GO TO 3.
2. CHECK GROUND CIRCUIT
Check continuity between sunroof motor assembly connector R4 terminal 7 and ground.
OK or NG
OK >> Sunroof motor assembly power supply and ground cir- cuits are OK. Further inspection is necessary. Refer to
RF-17, "
Trouble Diagnosis Chart by Symptom" .
NG >> Repair or replace harness.
3. CHECK BCM OUTPUT SIGNAL
1. Turn ignition switch ON.
2. Check voltage between BCM connector M20 terminals 68, 69 and ground.
OK or NG
OK >> GO TO 4.
NG >> Replace BCM. Refer to BCS-20, "
BCM" .
Connector Terminals
Condition Voltage
(Approx.)
(+) ( –)
R4 1
Ground Ignition switch ON Battery voltage
Within 45 seconds after
ignition switch is turned
OFF
Battery voltage
When front door LH or
RH is open while retained
power is operating 0
5 Ignition switch OFF Battery voltage
WIIA0250E
7 - Ground : Continuity should exist.
WIIA0251E
68 - Ground: Battery voltage
69 - Ground : Battery voltage
WIIA0425E

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4. CHECK SUNROOF MOTOR CIRCUIT HARNESS
1. Turn ignition switch OFF.
2. Disconnect BCM connector.
3. Check continuity between BCM connector M20 terminal 68, 69 and sunroof motor assembly connector R4 terminals 1, 5.
4. Check continuity between BCM connector M20 terminal 68, 69 and ground.
OK or NG
OK >> Sunroof motor assembly power supply circuits are OK. Further inspection is necessary. Refer to RF-17, "
Trouble Diagnosis Chart by Symptom" .
NG >> Repair or replace harness between BCM and sunroof motor assembly.
Door Switch CheckEIS004W4
1. CHECK DOOR SWITCH INPUT SIGNAL
With CONSULT-II
Check door switches ("DOOR SW-DR" and "DOOR SW-AS") in "DATA MONITOR" mode with CONSULT-II.
Without CONSULT-II
1. Turn ignition switch OFF.
2. Check voltage between BCM connector and ground.
OK or NG
OK >> Door switches are OK.
NG >> GO TO 2. 68 - 1
: Continuity should exist.
69 - 5 : Continuity should exist.
68 - Ground : Continuity should not exist.
69 - Ground : Continuity should not exist.
LIIA1246E
Monitor item Condition
DOOR SW-DR OPEN
: ON
CLOSE : OFF
DOOR SW-AS OPEN
: ON
CLOSE : OFF
PIIA2464E
Item Connector Te r m i n a l s
Condition Voltage
(Approx.)
(+) (– )
RH M18 12 GroundDoor open
(switch closed) 0
Door closed
(switch open) Battery voltage
LH M19 47 Door open
(switch closed) 0
Door closed
(switch open) Battery voltage
WIIA0234E

RF-22
SUNROOF
Revision: November 20092006 QX56
2. CHECK DOOR SWITCH CIRCUIT
1. Disconnect front door switches and BCM connectors.
2. Check continuity between front door switch connector B8 (LH) or B108 (RH) terminal 2 and BCM connec- tor M18, M19 terminals 12 and 47.
3. Check continuity between front door switch connector B8 (LH) or B108 (RH) terminal 2 and ground.
OK or NG
OK >> GO TO 3.
NG >> Repair or replace harness between BCM and sunroof motor assembly.
3. CHECK DOOR SWITCHES
Check continuity between each door switch terminal 2 and body ground part of door switch.
OK or NG
OK >> GO TO 4.
NG >> Replace malfunctioning door switch.
4. CHECK BCM OUTPUT SIGNAL
1. Connect BCM connectors.
2. Check voltage between BCM connector M18 terminal 12, M19 terminal 47 and ground.
OK or NG
OK >> Check the condition of the harness and the connector.
NG >> Replace BCM. Refer to BCS-20, "
BCM" .
Front door switch LH
2 - 47
: Continuity should exist.
Front door switch RH
2 - 12 : Continuity should exist.
2 - Ground : Continuity should not exist.
WIIA0235E
Terminal Condition Continuity
2 Body ground part
of door switch Door switch pushed No
Door switch released Yes
WIIA0289E
12 - Ground
: Battery voltage
47 - Ground : Battery voltage
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Revision: November 2009 2006 QX56
Fitting AdjustmentEIS007XG
GAP ADJUSTMENT
NOTE:
If any gap or height difference between glass lid assembly and roof panel is found, check the fit and adjust as
follows:
1. Open sunshade assembly.
2. Loosen glass lid assembly screws (2 each on left and right sides), then tilt glass lid assembly down.
3. Manually adjust glass lid assembly from outside of vehicle so it resembles "A-A" as shown in the figure.
4. After adjusting glass lid assembly, tilt up and tighten screws.
NOTE:
First tighten left front screw then right rear to prevent movement while tightening the remaining screws.
5. Tilt glass lid assembly up and down several times to check that it moves smoothly.
WIIA0304E

RF-24
SUNROOF
Revision: November 20092006 QX56
HEIGHT DIFFERENCE ADJUSTMENT
If an excessive height difference between glass lid assembly and roof panel is found, adjust in the following
manner:
1. Remove headlining. Refer to EI-38, "
HEADLINING" .
2. Loosen sunroof frame assembly nuts and sunroof bracket bolts.
3. Add shims until gap is within specification "A-A". NOTE:
Temporarily snug nuts and bolts to prevent movement between each adjustment.
4. Tilt glass lid assembly up and down several times to check that it moves and seals properly.
5. Tighten sunroof frame assembly nuts and sunroof bracket bolts. NOTE:
First tighten left front then right rear sunroof frame assembly to prevent uneven torque while tightening
remaining sunroof bracket bolts.
6. Install headlining. Refer to EI-38, "
HEADLINING" .
Removal and InstallationEIS007XH

After any adjustment, check sunroof operation and glass lid assembly alignment.

Handle glass lid assembly with care so not to cause damage.

For easier installation, mark each point before removal.
CAUTION:

Always work with a helper.

Before removal, fully close the glass lid assembly. Then, after removal, do not move the sunroof
motor assembly.

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Revision: November 2009 2006 QX56

After installing the sunroof unit and glass lid assembly, operate the mechanism several times to
be sure there is no malfunction.
WIIA0657E