ignition INFINITI QX56 2006 Factory Service Manual

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REAR WIPER AND WASHER SYSTEM
Revision: November 20092006 QX56
CONSULT-II Function (BCM)EKS00BEH
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 the
ignition switch ON.
2. Touch "START (NISSAN BASED VHCL)".
3. Touch "BCM" on the "SELECT SYSTEM" screen. 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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4. Select the desired part to be diagnosed on the "SELECT TEST
ITEM" screen.
DATA MONITOR
Operation Procedure
1. Touch "WIPER" on "SELECT TEST ITEM" screen.
2. Touch "DATA MONITOR" on "SELECT DIAG MODE" screen.
3. Touch either "ALL SIGNALS" or "SELECTION FROM MENU" on "SELECT MONITOR ITEM" screen.
4. Touch "START".
5. When "SELECTION FROM MENU" is selected, touch items to be monitored. When "ALL SIGNALS" is
selected, all the items will be monitored.
6. Touch "RECORD" while monitoring, then the status of the monitored item can be recorded. To stop recording, touch "STOP".
Display Item List
ACTIVE TEST
Operation Procedure
1. Touch "WIPERS" on the "SELECT TEST ITEM" screen.
2. Touch "ACTIVE TEST" on the "SELECT DIAG MODE" screen.
3. Touch item to be tested and check operation of the selected item.
4. During the operation check, touching "BACK" deactivates the operation.
LKIA0183E
All signals Monitors all the items.
Selection from menu Selects and monitors the individual item selected.
Monitor item name
"OPERATION OR UNIT" Contents
IGN ON SW "ON/OFF" Displays "IGN Position (ON)/OFF, ACC Position (OFF)" status as judged from ignition switch signal.
IGN SW CAN "ON/OFF" Displays "IGN Position (ON)/OFF, ACC Position (OFF)" status as judged from CAN communica-
tions.
FR WIPER INT "ON/OFF" Displays "Front Wiper INT (ON)/Other (OFF)" status as judged from wiper switch signal.
FR WIPER LOW "ON/OFF" Displays "Front Wiper LOW (ON)/Other (OFF)" status as judged from wiper switch signal.
FR WIPER HI "ON/OFF" Displays "Front Wiper HI (ON)/Other (OFF)" status as judged from wiper switch signal.
FR WASHER SW "ON/OFF" Displays "Front Washer Switch (ON)/Other (OFF)" status as judged from wiper switch signal.
INT VOLUME (1 - 7) Displays intermittent operation dial position setting (1 - 7) as judged from wiper switch signal.
VEHICLE SPEED "0.0 km/h" Displays vehicle speed as received over CAN communication.
FR WIPER STOP "ON/OFF" Displays "Stopped (ON)/Operating (OFF)" status as judged from the auto stop signal.
RR WIPER INT "ON/OFF" Displays "Rear Wiper INT (ON)/Other (OFF)" status as judged from wiper switch signal.
RR WIPER ON "ON/OFF" Displays "Rear Wiper (ON)/Other (OFF)" status as judged from wiper switch signal.
RR WASHER SW "ON/OFF" Displays "Rear Washer Switch (ON)/Other (OFF)" status as judged from wiper switch signal.
RR WIPER STOP "ON/OFF" Displays "Stopped (OFF)/Operating (ON)" status as judged from the auto stop switch 1.
RR AUTO STP 2 "ON/OFF" Displays "Stopped (OFF)/Operating (ON)" status as judged from the auto stop switch 2.

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REAR WIPER AND WASHER SYSTEM
Revision: November 20092006 QX56
Display Item List
Rear Wiper Does Not OperateEKS00GBJ
1. REAR WIPER ACTIVE TEST
1. Select "BCM" on CONSULT-II, and select "WIPER" on "SELECT TEST ITEM" screen.
2. Select "ACTIVE TEST" on "SELECT DIAG MODE" screen.
3. Select "RR WIPER" on "SELECT TEST ITEM" screen.
4. Make sure rear wiper operates.
OK or NG
OK >> GO TO 7.
NG >> GO TO 2.
2. CHECK REAR WIPER MOTOR CIRCUITS
1. Turn ignition switch OFF.
2. Disconnect BCM connector and rear wiper motor connector.
3. Check continuity between BCM harness connector terminals and rear wiper motor harness connector terminals.
OK or NO
OK >> GO TO 3.
NO >> Repair harness or connector.
3. CHECK GLASS HATCH AJAR SWITCH
1. Make sure hatch glass is closed.
2. Check continuity between BCM connector M19 terminal 42 and ground.
OK or NG
OK >> GO TO 4.
NG >> Repair harness if shorted. If not, refer to BL-31, "
Door
Switch Check" for further glass hatch ajar switch diag-
nosis.
Test item Display on CONSULT-II screen Description
Front wiper HI output FR WIPER (HI)Front wiper HI can be operated by any ON-OFF operation.
Front wiper LO output FR WIPER (LO)Front wiper LO can be operated by any ON-OFF operation.
Front wiper INT output FR WIPER (INT) Front wiper INT can be operated by any ON-OFF operation.
Rear wiper output RR WIPERRear wiper can be operated by any ON-OFF operation.
Wiper should operate.
SKIA3503E
BCMRear wiper motor
Continuity
Connector Terminal Connector Terminal
M19 55
D704 4
Ye s
54 6
WKIA1413E
42 - Ground: Continuity should not exist.
WKIA1414E

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4. CHECK REAR WIPER MOTOR AUTO STOP CIRCUITS
1. Disconnect BCM connector M18.
2. Check continuity between BCM harness connector terminals and rear wiper motor harness connector terminals.
OK or NO
OK >> GO TO 5.
NO >> Repair harness or connector.
5. CHECK REAR WIPER MOTOR AUTO STOP SWITCH GROUNDS
Check continuity between rear wiper motor harness connector D704
terminals and ground.
OK or NG
OK >> GO TO 6.
NG >> Repair harness or connector.
6. CHECK REAR WIPER OPERATING
1. Connect BCM connectors and rear wiper motor connector.
2. Turn ignition switch ON.
3. Select “RR WIPER ” during "ACTIVE TEST". Refer to WW-43,
"ACTIVE TEST" . When rear wiper is operating, check voltage
between BCM connector terminals and ground.
OK or NG
OK >> Replace rear wiper motor. Refer to WW-50, "Rear Wiper Motor" .
NG >> Replace BCM. Refer to BCS-20, "
BCM" .
BCMRear wiper motor
Continuity
Connector Terminal Connector Terminal
M18 26
D704 1
Ye s
M19 44 2
WKIA1415E
Rear wiper motor
Continuity
Connector Terminal
D704 3
Ground Yes
5
WKIA1416E
BCM
(– ) Condition Voltage
(Approx.)
(+)
Connector Terminal
M19 54
Ground Operating Fluctuating
55 End of travel
(stopped) 0V
WKIA1417E

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REAR WIPER AND WASHER SYSTEM
Revision: November 20092006 QX56
7. CHECK COMBINATION SWITCH INPUT SIGNAL
Select "BCM" on CONSULT-II. With "WIPER" data monitor, make
sure "RR WIPER INT", "RR WIPER ON" turn ON-OFF according to
operation of wiper switch.
OK or NG
OK >> Replace BCM. Refer to BCS-20, "BCM" .
NG >> Check the wiper switch. Refer to WW-6, "
COMBINA-
TION SWITCH READING FUNCTION" .
Rear Wiper Stop Position Is IncorrectEKS00BEJ
1. CHECK AUTO STOP SWITCH INPUT SIGNALS
Select "BCM" on CONSULT-II. With "WIPER" data monitor, make
sure "RR WIPER STOP" and "RR AUTO STOP 2" turn ON-OFF
according to wiper operation.
OK or NG
OK >> Replace BCM. Refer to BCS-20, "BCM" .
NG >> GO TO 2.
2. CHECK AUTO STOP CIRCUITS FOR SHORT TO GROUND
1. Turn ignition switch to OFF.
2. Disconnect BCM and rear wiper motor connectors.
3. Check continuity between BCM harness connector terminals and ground.
OK or NO
OK >> GO TO 3.
NO >> Repair harness or connector. When wiper switch is in
INT position
: RR WIPER INT ON
When wiper switch is in
ON position : RR WIPER ON
SKIA4243E
When wiper switch is OFF
and arm on stop : RR WIPER STOP ON
: RR AUTO STOP 2 ON
When wiper switch is ON and arm in position A : RR WIPER STOP OFF
: RR AUTO STOP 2 ON
When wiper switch is ON counterclockwise sweep : RR WIPER STOP OFF
: RR AUTO STOP 2 OFF
When wiper switch is ON and arm in position B : RR WIPER STOP ON
: RR AUTO STOP 2 OFF
When wiper switch is ON clockwise sweep : RR WIPER STOP OFF
: RR AUTO STOP 2 OFF
When wiper switch is ON and arm in position A : RR WIPER STOP ON
: RR AUTO STOP 2 OFF
WKIA1418E
Terminals
Continuity
Connector Terminal
M18 26
Ground No
M19 44
WKIA2096E

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Revision: November 2009 2006 QX56
3. CHECK REAR WIPER MOTOR AUTO STOP SWITCH GROUNDS
Check continuity between rear wiper motor harness connector D704
terminals and ground.
OK or NG
OK >> GO TO 4.
NG >> Repair harness or connector.
4. CHECK REAR WIPER OPERATING
1. Connect BCM connectors and rear wiper motor connector.
2. Turn ignition switch ON.
3. Turn rear wiper switch ON, then to OFF when wiper arm reaches mid sweep.
4. Check voltage between rear wiper motor connector D704 termi- nal 6 and ground.
OK or NG
OK >> Replace rear wiper motor. Refer to WW-50, "Rear Wiper
Motor" .
NG >> Replace BCM. Refer to BCS-20, "
BCM" .
Only Rear Wiper Does Not OperateEKS00BEK
1. CHECK COMBINATION SWITCH INPUT SIGNAL
Select "BCM" on CONSULT-II. With "WIPER" data monitor, make
sure "RR WIPER ON" turns ON-OFF according to operation of wiper
switch.
OK or NG
OK >> Replace BCM. Refer to BCS-20, "BCM" .
NG >> Check the wiper switch. Refer to WW-6, "
COMBINA-
TION SWITCH READING FUNCTION" .
Terminals
Continuity
Connector Terminal
D704 1
Ground No
2
3
Ye s
5
WKIA2097E
Battery voltage should exist on the reverse wipe
until arm is seated in the stop.
WKIA2098E
When rear wiper switch is in
ON position : RR WIPER ON ON
SKIA4248E