2010 INFINITI QX56 Factory Service Manual

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Page 3017 of 4210

INFINITI QX56 2010 Factory Service Manual PWC-32
< COMPONENT DIAGNOSIS >
ENCODER
1. Turn ignition switch OFF.
2. Disconnect rear power window motor RH.
3. Turn ignition switch ON.
4. Check voltage between rear power window motor RH connectorD

Page 3018 of 4210

INFINITI QX56 2010 Factory Service Manual ENCODERPWC-33
< COMPONENT DIAGNOSIS >
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1. Turn ignition switch ON.
2. Check voltage between rear power window control unit RH con- nector and ground.
Is the inspection

Page 3019 of 4210

INFINITI QX56 2010 Factory Service Manual PWC-34
< COMPONENT DIAGNOSIS >
DOOR SWITCH
DOOR SWITCH
DescriptionINFOID:0000000005147209
Detects door open/close condition and transmits the signal to BCM.
Component Function CheckINFOID:000000000514

Page 3020 of 4210

INFINITI QX56 2010 Factory Service Manual DOOR SWITCHPWC-35
< COMPONENT DIAGNOSIS >
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1. Turn ignition switch OFF.
2. Disconnect BCM and front door switch.
3. Check continuity between BCM connector and front doo

Page 3021 of 4210

INFINITI QX56 2010 Factory Service Manual PWC-36
< COMPONENT DIAGNOSIS >
DOOR KEY CYLINDER SWITCH
DOOR KEY CYLINDER SWITCH
DescriptionINFOID:0000000005147213
Main power window and door lock/unlock switch detects condition of the door key cyli

Page 3022 of 4210

INFINITI QX56 2010 Factory Service Manual DOOR KEY CYLINDER SWITCHPWC-37
< COMPONENT DIAGNOSIS >
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1. Turn ignition switch OFF.
2. Disconnect main power window and door lock/unlock switch and front door lock ass

Page 3023 of 4210

INFINITI QX56 2010 Factory Service Manual PWC-38
< COMPONENT DIAGNOSIS >
DOOR KEY CYLINDER SWITCH
Check front door lock assembly LH (key cylinder switch).
Is the inspection result normal?
YES >> Key cylinder switch is OK.
NO >> Replace front

Page 3024 of 4210

INFINITI QX56 2010 Factory Service Manual POWER WINDOW SERIAL LINKPWC-39
< COMPONENT DIAGNOSIS >
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POWER WINDOW SERIAL LINK
POWER WINDOW MAIN SWITCH
POWER WINDOW MAIN SWITCH : DescriptionINFOID:0000000005147217

POWER WINDOW SERIAL LINKPWC-39
< COMPONENT DIAGNOSIS >
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POWER WINDOW SERIAL LINK
POWER WINDOW MAIN SWITCH
POWER WINDOW MAIN SWITCH : DescriptionINFOID:0000000005147217
Main power window and door lock/unlock switch, power window and door lock/unlock switch RH and BCM
transmit and receive the signal by power window serial link.
The signal mentioned below is transmitted from BCM to main power window and door lock/unlock switch and
power window and door lock/unlock switch RH
• Keyless power window down signal
The signal mentioned below is transmitted from main pow er window and door lock/unlock switch to power win-
dow and door lock/unlock switch RH
• Front door window RH operation signal
• Power window control by key cylinder switch signal
• Power window lock switch signal
• Retained power operation signal
POWER WINDOW MAIN SWITCH : Component Function CheckINFOID:0000000005147218
1. CHECK MAIN POWER WINDOW AND DOOR LOCK/UNLOCK SWITCH OUTPUT SIGNAL
Check (“CDL LOCK SW ”, “CDL UNLOCK SW”) in “D ATA MONITOR” mode for “POWER DOOR LOCK SYS-
TEM” with CONSULT-III. Refer to BCS-17, "
DOOR LOCK : CONSULT-III Function (BCM - DOOR LOCK)".
Is the inspection result normal?
YES >> Power window serial link is OK.
NO >> Refer to PWC-39, "
POWER WINDOW MAIN SWITCH : Diagnosis Procedure".
POWER WINDOW MAIN SWITCH : Diagnosis ProcedureINFOID:0000000005147219
Regarding Wiring Diagram information, refer to PWC-53, "Wiring Diagram".
1. CHECK MAIN POWER WINDOW AND DOOR LOCK/UNLOCK SWITCH OUTPUT SIGNAL
1. Remove Intelligent Key or ignition key, and close front door LH and RH.
2. Check signal between BCM connector and ground with oscillo-
scope when door lock and unlock switch (LH and RH) is turned
to “LOCK” or “UNLOCK”.
3. Check that signals which are shown in the figure below can be
detected during 10 second just after door lock and unlock switch
(LH and RH) is turned to “LOCK” or “UNLOCK”.
Monitor item Condition
CDL LOCK SW LOCK
: ON
UNLOCK : OFF
CDL UNLOCK SW LOCK
: OFF
UNLOCK : ON
LIIA0391E
Revision: April 20092010 QX56

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