2011 INFINITI QX56 Factory Service Manual

stop start wiring glove box snow chains 4WD tire type

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INFINITI QX56 2011 Factory Service Manual
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< SYSTEM DESCRIPTION >
SYSTEM
IPDM E/R detects front wiper stop position by a front wiper stop position signal.
When a front wiper stop position signal is in the conditi ons listed below, IPDM

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< SYSTEM DESCRIPTION >
SYSTEM
IPDM E/R detects front wiper stop position by a front wiper stop position signal.
When a front wiper stop position signal is in the conditi ons listed below, IPDM E/R stops power supply to wiper
after repeating a front wiper 10 seconds activation and 20 seconds stop five times.
NOTE:
This operation status can be confirmed on the IPDM E/ R “Data Monitor” that displays “BLOCK” for the item
“WIP PROT” while the wiper is stopped.
BCM
BCM detects the rain sensor serial link error and the light & rain sensor malfunction.
BCM controls the following fail-safe when light & rain sensor has a malfunction.
Fail-safe Control
Front wiper control
- Front wiper switch AUTO and sensing rain drop: The c ondition just before the activation of fail-safe is main-
tained until the front wiper switch is turned OFF.
- Front wiper switch AUTO and not sensing rain drop: Front wiper is LO operation until the front wiper switch is
turned off.
REAR WIPER AND WASHER SYSTEM
REAR WIPER AND WASHER SYSTEM : System DiagramINFOID:0000000006300457
REAR WIPER AND WASHER S YSTEM : System DescriptionINFOID:0000000006300458
OUTLINE
The rear wiper is controlled by each function of BCM.
Control by BCM
Combination switch reading function
Control part Fail-safe operation
Front wiper The status just before activation of fail-safe control is maintained until the ignition switch
is turned OFF while the front wiper is operating at LO or HI speed.
The wiper is operated at LO speed until the ignition switch is turned OFF if the fail-safe
control is activated while the front wiper is set in the AUTO mode and the front wiper
motor is operating.
Headlamp washer relay Headlamp washer relay OFF
Ignition switch Front wiper switch Front wiper stop position signal
ON OFF
The front wiper stop position signal (stop
position) cannot be input for 10 seconds.
ON The front wiper stop position signal does
not change for 10 seconds.
JMLIA0612GB
Revision: 2010 May2011 QX56

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< SYSTEM DESCRIPTION >
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Rear wiper control function
REAR WIPER BASIC OPERATION
BCM detects the combination switch conditi on by the combination switch r

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INFINITI QX56 2011 Factory Service Manual
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< SYSTEM DESCRIPTION >
SYSTEM
- Rear washer switch ON (0.4 second or more)
The washer pump is grounded through the combination switch with the rear washer switch ON.
REAR WIPER OPERATION LINK

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< SYSTEM DESCRIPTION >
SYSTEM
- Rear washer switch ON (0.4 second or more)
The washer pump is grounded through the combination switch with the rear washer switch ON.
REAR WIPER OPERATION LINKED WITH REVERSE (WITH RAIN SENSOR)
BCM controls rear wiper to operate once according to the conditions of rear wiper operation linked with
reverse.
Condition of rear wiper operation linked with reverse - Ignition switch ON
- Front wiper switch: LO, HI or AUTO, and the front wiper auto operation ON judgement.
- Rear wiper switch OFF
- Selector lever “R”
TCM transmits the shift position signal to BCM thr ough the CAN communication line when the selector lever
is shifted to "R".
BCM supplies power to the rear wiper motor when receiving the shift position signal.
REAR WIPER OPERATION LINKED WITH REVERSE (WITHOUT RAIN SENSOR)
BCM controls rear wiper to operate once according to the conditions of rear wiper operation linked with
reverse.
Condition of rear wiper operation linked with reverse
- Ignition switch ON
- Front wiper switch: LO, HI or INT.
- Rear wiper switch OFF
- Selector lever “R”
TCM transmits the shift position signal to BCM thr ough the CAN communication line when the selector lever
is shifted to "R".
BCM supplies power to the rear wiper motor when receiving the shift position signal.
REAR WIPER DROP WIPE OPERATION
BCM controls the rear wiper to operate once acco rding to the rear wiper drop wipe operating condition.
Rear wiper drop wipe operating condition- Ignition switch ON
- Rear wiper switch OFF
- Rear washer switch OFF
BCM controls the rear wiper so that it operates once approximately three seconds later after the washer
interlocking operation of the rear wiper.
REAR WIPER AND WASHER SYSTEM : Fail SafeINFOID:0000000006300459
REAR WIPER MOTOR PROTECTION
BCM detects the rear wiper stopping position ac cording to the rear wiper auto stop signal.
When the rear wiper auto stop signal does not change more than 5 seconds while driving the rear wiper, BCM
stops power supply to protect the rear wiper motor.
Condition of cancellation
1. Pass more than 1 minute after the rear wiper stop.
2. Operate the rear wiper switch.
HEADLAMP WASHER SYSTEM
Revision: 2010 May2011 QX56

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HEADLAMP WASHER SYSTEM : System DiagramINFOID:0000000006372942
HEADLAMP WASHER SYSTEM : System DescriptionINFOID:0000000006372943
OU

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< SYSTEM DESCRIPTION >
DIAGNOSIS SYSTEM (BCM)
DIAGNOSIS SYSTEM (BCM)
COMMON ITEM
COMMON ITEM : CONSULT-III Function (BCM - COMMON ITEM)INFOID:0000000006349813
APPLICATION ITEM
CONSULT-III perfo

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< SYSTEM DESCRIPTION >
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WIPER
WIPER : CONSULT-III Function (BCM - WIPER)INFOID:0000000006300461
WORK SUPPORT
CONSULT screen item Indication/

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< SYSTEM DESCRIPTION >
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WIPER
WIPER : CONSULT-III Function (BCM - WIPER)INFOID:0000000006300461
WORK SUPPORT
CONSULT screen item Indication/Unit Description
Vehicle Speed km/h Vehicle speed of the moment a particular DTC is detected
Odo/Trip Meter km Total mileage (Odometer value) of the moment a particular DTC is detected
Vehicle Condition SLEEP>LOCK
Power position status of
the moment a particular
DTC is detected While turning BCM status from low power consumption mode to
normal mode (Power supply position is “LOCK”)
SLEEP>OFF While turning BCM status from low power consumption mode to
normal mode (Power supply position is “OFF”.)
LOCK>ACC While turning power supply position from “LOCK” to “ACC”
ACC>ON While turning power supply position from “ACC” to “IGN”
RUN>ACC While turning power supply position
from “RUN” to “ACC” (Vehicle
is stopping and selector lever is except P position.)
CRANK>RUN While turning power su
pply position from “CRANKING” to “RUN”
(From cranking up the engine to run it)
RUN>URGENT While turning power su
pply position from “RUN“ to “ACC” (Emer-
gency stop operation)
ACC>OFF While turning power supply position from “ACC” to “OFF”
OFF>LOCK While turning power supply position from “OFF” to “LOCK”
OFF>ACC While turning power supply position from “OFF” to “ACC”
ON>CRANK While turning po wer supply position from “IGN” to “CRANKING”
OFF>SLEEP While turning BCM status from normal mode (Power supply posi-
tion is “OFF”.) to low power consumption mode
LOCK>SLEEP While turning BCM status from normal mode (Power supply posi-
tion is “LOCK”.) to low power consumption mode
LOCK Power supply position is “LOCK” (Ignition switch OFF with steer-
ing is locked.)
OFF Power supply position
is “OFF” (Ignition switch OFF with steering
is unlocked.)
ACC Power supply position is “ACC” (Ignition switch ACC)
ON Power supply position is “IGN” (Ignition switch ON with engine
stopped)
ENGINE RUN Power supply posi
tion is “RUN” (Ignition switch ON with engine
running)
CRANKING Power supply position is “CRANKING” (At engine cranking)
IGN Counter 0 - 39 The number of times that ignition switch is turned ON after DTC is detected
The number is 0 when a malfunction is detected now.
The number increases like 1
→ 2 → 3...38 → 39 after returning to the normal condition
whenever ignition switch OFF → ON.
The number is fixed to 39 until the self-diagnosis results are erased if it is over 39.
Service item Setting item Description
WIPER SPEED
SETTING*
1
On With vehicle speed
(Front wiper intermittent time linked with the vehicle speed and wip-
er intermittent dial position)
The setting of front wip-
er INT operation can be
changed
Off Without vehicle speed
(Front wiper intermittent time linked with the wiper intermittent dial
position)
Revision: 2010 May2011 QX56

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< SYSTEM DESCRIPTION >
DIAGNOSIS SYSTEM (BCM)
*1:The item is indicated, but not operated
*2:Factory setting
DATA MONITOR
ACTIVE TEST
RAIN SEN WIP
FUNC SETOn*
2With rain sensor
(Front wiper int

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Test item Operation Description
FR WIPER Hi
Transmits the front wiper request signal (HI) to IPDM E/R via CAN commun

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