WT-20
TROUBLE DIAGNOSES
Revision: November 20092006 QX56
Self-DiagnosisEES001I9
DESCRIPTION
During driving, the low tire pressure warning system receives the signal transmitted from the transmitter
installed in each wheel, and gives alarms when the tire pressure becomes low. The control unit (BCM) for this
system has pressure judgement and trouble diagnosis functions.
FUNCTION
When the low tire pressure warning system detects low inflation pressure or another unusual symptom, the
warning lamp in the combination meter comes on. To start the self-diagnostic results mode, ground the tire
pressure warning check terminal. The malfunction location is indicated by the low tire pressure warning lamp
flashing and the buzzer sounds.
CONSULT-II
CONSULT-II Application to Low Tire Pressure Warning System
× : Applicable
– : Not applicable
Self-Diagnostic Results Mode
NOTE:
Before performing the self-diagnosis, be sure to register the ID or the actual malfunction location may be different from that displayed on
CONSULT-II. ITEM
SELF-DIAGNOSTIC RESULTS DATA MONITOR
Front - Left transmitter ××
Front - Right transmitter ××
Rear - Left transmitter ××
Rear - Right transmitter ××
Warning lamp —×
Vehicle speed ××
Buzzer (in combination meter) —×
CAN Communication ××
Diagnostic itemDiagnostic item is detected when ···
FLAT - TIRE - FL [C1704]
FLAT - TIRE - FR [C1705]
FLAT - TIRE - RR [C1706]
FLAT - TIRE - RL [C1707] Front-left tire pressure drops to 193 kPa (2.0 kg/cm
2 , 28 psi) or less
Front-right tire pressure drops to 193 kPa (2.0 kg/cm2 , 28 psi) or less
Rear-right tire pressure drops to 193 kPa (2.0 kg/cm2 , 28 psi) or less
Rear-left tire pressure drops to 193 kPa (2.0 kg/cm2 , 28 psi) or less
[NO-DATA] - FL [C1708]
[NO-DATA] - FR [C1709]
[NO-DATA] - RR [C1710]
[NO-DATA] - RL [C1711] Data from front-left transmitter cannot be received.
Data from front-right transmitter cannot be received.
Data from rear-right transmitter cannot be received.
Data from rear-left transmitter cannot be received.
[CHECKSUM- ERR] - FL
[CHECKSUM- ERR] - FR
[CHECKSUM- ERR] - RR
[CHECKSUM- ERR] - RL Checksum data from front-left transmitter is malfunctioning.
Checksum data from front-right transmitter is malfunctioning.
Checksum data from rear-right transmitter is malfunctioning.
Checksum data from rear-left transmitter is malfunctioning.
[PRESSDATA- ERR] - FL
[PRESSDATA- ERR] - FR
[PRESSDATA- ERR] - RR
[PRESSDATA- ERR] - RL Air pressure data from front-left transmitter is malfunctioning.
Air pressure data from front-right transmitter is malfunctioning.
Air pressure data from rear-right transmitter is malfunctioning.
Air pressure data from rear-left transmitter is malfunctioning.
[CODE- ERR] - FL
[CODE- ERR] - FR
[CODE- ERR] - RR
[CODE- ERR] - RL Function code data from front-left transmitter is malfunctioning.
Function code data from front-right transmitter is malfunctioning.
Function code data from rear-right transmitter is malfunctioning.
Function code data from rear-left transmitter is malfunctioning.
[BATT - VOLT - LOW] - FL
[BATT - VOLT - LOW] - FR
[BATT - VOLT - LOW] - RR
[BATT - VOLT - LOW] - RL Battery voltage of front-left transmitter drops.
Battery voltage of front-right transmitter drops.
Battery voltage of rear-right transmitter drops.
Battery voltage of rear-left transmitter drops.
VHCL_SPEED_SIG_ERR [C1729] Vehicle speed signal is in error.
FRONT WIPER AND WASHER SYSTEMWW-15
C
DE
F
G H
I
J
L
M A
B
WW
Revision: November 2009 2006 QX56
4. Select the desired part to be diagnosed on the "SELECT TEST
ITEM" screen.
WORK SUPPORT
Operation Procedure
1. Touch "WIPER" on the "SELECT TEST ITEM" screen.
2. Touch "WORK SUPPORT" on the "SELECT DIAG MODE" screen.
3. Touch "WIPER SPEED SETTING" on the "SELECT WORK ITEM" screen.
4. Touch "START".
5. Touch "CHANGE SETT".
6. The setting will be changed and "CUSTOMIZING COMPLETED" will be displayed.
7. Touch "END".
Work Support Setting Item
DATA MONITOR
Operation Procedure
1. Touch "WIPER" on the "SELECT TEST ITEM" screen.
2. Touch "DATA MONITOR" on the "SELECT DIAG MODE" screen.
3. Touch either "ALL SIGNALS" or "SELECTION FROM MENU" on the "SELECT MONITOR ITEM" screen.
4. Touch "START".
5. When "SELECTION FROM MENU" is selected, touch items to be monitored. When "ALL SIGNALS" isselected, all the items will be monitored.
6. Touch "RECORD" while monitoring to record the status of the item being monitored. To stop recording, touch "STOP".
Display Item List
LKIA0183E
Item Description CONSULT-II
WIPER SPEED SETTING When wiper switch is at INTERMITTENT, front wiper intermittent
time can be selected according to vehicle speed.
ON (Operated)/OFF (Not operated) ON/OFF
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 switch ON (ON)/Other OFF or ACC (OFF)" status as judged from CAN
communications.
FR WIPER HI "ON/OFF" Displays "Front Wiper HI (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 sig-
nal.
FR WIPER INT "ON/OFF"Displays "Front Wiper INT (ON)/Other (OFF)" status as judged from wiper switch sig-
nal.
FRONT WIPER AND WASHER SYSTEMWW-17
C
DE
F
G H
I
J
L
M A
B
WW
Revision: November 2009 2006 QX56
2. Touch "START (NISSAN BASED VHCL)".
3. Touch "IPDM E/R" on "SELECT SYSTEM" screen.
If "IPDM E/R" is not displayed, go to GI-40, "
CONSULT-II Data
Link Connector (DLC) Circuit" .
4. Select the desired part to be diagnosed on the "SELECT DIAG MODE" screen.
DATA MONITOR
Operation Procedure
1. Touch "WIPER" on the "SELECT TEST ITEM" screen.
2. Touch "DATA MONITOR" on the "SELECT DIAG MODE" screen.
3. Touch "ALL SIGNALS", "MAIN SIGNALS" or "SELECTION FROM MENU" on the "SELECT MONITORITEM" 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. When "MAIN SIGNALS" is selected, predetermined items are
monitored.
6. Touch "RECORD" while monitoring to record the status of the item being monitored. To stop recording, touch "STOP".
BCIA0029E
BCIA0030E
BCIA0031E
ALL SIGNALS Monitors all the items.
MAIN SIGNALS Monitors predetermined items.
SELECTION FROM MENU Selects and monitors the individual item selected.
REAR WIPER AND WASHER SYSTEMWW-43
C
DE
F
G H
I
J
L
M A
B
WW
Revision: November 2009 2006 QX56
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.