2005 NISSAN NAVARA lights

EC-190
DTC P0504 ASCD BRAKE SWITCH
On Board Diagnosis Logic
EBS01KHW
The MI will not light up for this diagnosis.
DTC confirmation ProcedureEBS01KHX
CAUTION:
Always drive vehicle at a safe speed.
NOTE:
If DTC Confirmation Procedure has been previously conducted, always turn ignition switch OFF and wait at
least 10 seconds before conducting the next test.
TESTING CONDITION:
Steps 3 and 4 may be conducted with the drive wheels lifted in the shop or by driving the vehicle. If a
road test is expected to be easier, it is unnecessary to lift the vehicle.
WITH CONSULT-II
1. Start engine.
2. Select “DATA MONITOR” mode with CONSULT-II.
3. Press MAIN switch and make sure that CRUISE indicator lights
up.
4. Drive the vehicle for at least 5 consecutive seconds under the
following condition.
If DTC is detected, go toEC-193, "
Diagnostic Procedure".
If DTC is not detected, go to the following step.
5. Drive the vehicle for at least 5 consecutive seconds under the
following condition.
6. If DTC is detected, go toEC-193, "
Diagnostic Procedure".
DTC No.Trouble Diagnosis
NameDTC Detecting Condition Possible Cause
P0504
0504ASCD brake switch
lWhen the vehicle speed is above 5 km/h (3
MPH), ON signal from the stop lamp switch
and OFF signal from the ASCD brake
switch are sent to the ECM at the same
time.
lHarness or connectors
(The stop lamp switch circuit is open or
shorted.)
lHarness or connectors
(The ASCD brake switch circuit is open or
shorted.)
lHarness or connectors
(The ASCD clutch switch circuit is open or
shorted.) (M/T)
lStop lamp switch
lASCD brake switch
lASCD clutch switch (M/T)
lIncorrectstoplampswitchinstallation
lIncorrect ASCD brake switch installation
lIncorrect ASCD clutch switch installation (M/T)
lECM
VHCL SPEED SE More than 5 km/h (3 MPH)
Selector lever Suitable position
VHCL SPEED SE More than 5 km/h (3 MPH)
Selector lever Suitable position
Driving locationDepress the brake pedal for more than
five seconds so as not to come off from
the above-mentioned condition.
MBIB1085E

DTC P0504 ASCD BRAKE SWITCH
EC-191
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WITHOUT CONSULT-II
1. Start engine.
2. Press MAIN switch and make sure that CRUISE indicator lights up.
3. Drive the vehicle for at least 5 consecutive seconds under the following condition.
4. Turn ignition switch OFF, wait at least 10 seconds and then turn ON.
5. Perform Diagnostic Test Mode II (Self-diagnostic results) with ECM.
If DTC is detected, go toEC-193, "
Diagnostic Procedure".
If DTC is not detected, go to the following step.
6. Start engine.
7. Drive the vehicle for at least 5 consecutive seconds under the following condition.
8. If DTC is detected, go toEC-193, "
Diagnostic Procedure".
Vehiclespeed Morethan5km/h(3MPH)
Selector lever Suitable position
Vehiclespeed Morethan5km/h(3MPH)
Selector lever Suitable position
Driving locationDepress the brake pedal for more than
five seconds so as not to come off from
the above-mentioned condition.

SERVICE DATA AND SPECIFICATIONS (SDS)
EC-357
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SERVICE DATA AND SPECIFICATIONS (SDS)PFP:00100
General SpecificationsEBS01KN4
*: Under the following conditions:
lHeat up switch: OFF
lAir conditioner switch: OFF
lElectric load: OFF (Lights, heater fan & rear window defogger)
lSteering wheel: Kept in straight-ahead position
Mass Air Flow SensorEBS01KN5
*: Engine is warmed up to normal operating temperature and running under no load.
Intake Air Temperature SensorEBS01KN6
Engine Coolant Temperature SensorEBS01KN7
Fuel Rail Pressure SensorEBS01KN8
Fuel InjectorEBS01KN9
Glow PlugEBS01KNA
EGR Volume Control ValveEBS01KNB
Crankshaft Position SensorEBS01KNC
Refer toEC-164, "Component Inspection".
Camshaft Position SensorEBS01KND
Refer toEC-175, "Component Inspection".
Target idle speedA/T No load* (in P or N position)
750±25 rpm
M/T No load* (in Neutral position)
Air conditioner: ONA/T In P or N position 750 rpm or more
M/T In Neutral position 800 rpm or more
Maximum engine speed4,900 rpm
Supply voltageBattery voltage (11 - 14V)
Ignition switch ON (Engine stopped.) Approx. 0.4V
Idle (Engine is warmed up to normal operating temperature.) 1.3 - 1.7V *
Temperature°C(°F) Resistance kW
25 (77)1.800 - 2.200
80 (176)0.283 - 0.359
Temperature°C(°F) Resistance kW
20 (68)2.1 - 2.9
50 (122)0.68 - 1.00
90 (194)0.236 - 0.260
Supply voltageApproximately 5V
Idle (Engine is warmed up to normal operating temperature.) 1.7 - 2.0V
2,000 rpm (Engine is warmed up to normal operating tempera-
ture.)2.0 - 2.3V
Resistance [at 10 - 60°C (50 - 140°F)] 0.2 - 0.8W
Resistance [at 25°C(77°F)] Approximately 0.8W
Resistance [at 25°C(77°F)] 13 - 17W

PRECAUTIONS
GI-3
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PRECAUTIONSPFP:00001
DescriptionEAS001GG
Observe the following precautions to ensure safe and proper servicing. These precautions are not
described in each individual section.
Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT
BELT PRE-TENSIONER”
EAS001GH
The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain
types of collision. Information necessary to service the system safely is included in the SRS and SB section of
this Service Manual.
WARNING:
lTo avoid rendering the SRS inoperative, which could increase the risk of personal injury or death
in the event of a collision which would result in air bag inflation, all maintenance must be per-
formed by an authorized NISSAN/INFINITI dealer.
lImproper maintenance, including incorrect removal and installation of the SRS, can lead to per-
sonal injury caused by unintentional activation of the system. For removal of Spiral Cable and Air
Bag Module, see the SRS section.
lDo not use electrical test equipment on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or
harness connectors.
Precautions for NATS (NISSAN ANTI-THEFT SYSTEM)EAS001GI
NATS will immobilize the engine if someone tries to start it without the registered key of NATS.
Both of the originally supplied ignition key IDs have been NATS registered.
The security indicator is located on the instrument panel. The indicator blinks when the immobilizer system is
functioning.
Therefore, NATS warns outsiders that the vehicle is equipped with the anti-theft system.
lWhen NATS detects trouble, the security indicator lamp lights up while ignition switch is in "ON" position.
This lighting up indicates that the anti-theft is not functioning, so prompt service is required.
lWhen servicing NATS (trouble diagnoses, system initialization and additional registration of other NATS
ignition key IDs), CONSULT-II hardware and CONSULT-II NATS software is necessary.
Regarding the procedures of NATS initialization and NATS ignition key ID registration, refer to CONSULT-
II operation manual, NATS.
Therefore, CONSULT-II NATS software (program card and operation manual) must be kept strictly con-
fidential to maintain the integrity of the anti-theft function.
lWhen servicing NATS (trouble diagnoses, system initialization and additional registration of other NATS
ignition key IDs), it may be necessary to re-register original key identification. Therefore, be sure to
receive all keys from vehicle owner. A maximum of four or five key IDs can be registered into NATS.
lWhen failing to start the engine first time using the key of NATS, start as follows.
1. Leave the ignition key in "ON" position for approximately 5 seconds.
2. Turn ignition key to "OFF" or "LOCK" position and wait approximately 5 seconds.
3. Repeat step 1 and 2 again.
4. Restart the engine while keeping the key separate from any others on key-chain.
Precautions Necessary for Steering Wheel Rotation After Battery DisconnectEAS001HY
NOTE:
lThis Procedure is applied only to models with Intelligent Key system and NATS (NISSAN ANTI-THEFT
SYSTEM).
lRemove and install all control units after disconnecting both battery cables with the ignition knob in the
²LOCK²position.
lAlways use CONSULT-II to perform self-diagnosis as a part of each function inspection after finishing
work. If DTC is detected, perform trouble diagnosis according to self-diagnostic results.
For models equipped with the Intelligent Key system and NATS, an electrically controlled steering lock mech-
anism is adopted on the key cylinder.

SERVICE INFORMATION FOR ELECTRICAL INCIDENT
GI-31
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Control Unit Circuit Test
System Description:When the switch is ON, the control unit lights up the lamp.
INPUT-OUTPUT VOLTAGE CHART
The voltage value is based on the body ground.
*:If high resistance exists in the switch side circuit (caused by a single strand), terminal 1 does not detect battery voltage. Control unit
does not detect the switch is ON even if the switch does not turn ON. Therefore, the control unit does not supply power to light up the
lamp.
INPUT-OUTPUT VOLTAGE CHART
The voltage value is based on the body ground.
*:If high resistance exists in the switch side circuit (caused by a single strand), terminal 2 does not detect approx. 0V. Control unit does
not detect the switch is ON even if the switch does not turn ON. Therefore, the control unit does not control ground to light up the lamp.
MGI034A
Pin
No.Item ConditionVoltage
value [V]In case of high resistance such as single strand [V] *
1 SwitchSwitch ON Battery voltage Lower than battery voltage Approx. 8 (Example)
Switch OFF Approx. 0 Approx. 0
2LampSwitch ON Battery voltage Approx. 0 (Inoperative lamp)
Switch OFF Approx. 0 Approx. 0
MGI035A
Pin
No.Item ConditionVoltage
value [V]In case of high resistance such as single strand [V] *
1 LampSwitch ON Approx. 0 Battery voltage (Inoperative lamp)
Switch OFF Battery voltage Battery voltage
2SwitchSwitch ON Approx. 0 Higher than 0 Approx. 4 (Example)
Switch OFF Approx. 5 Approx. 5

HEADLAMP -CONVENTIONAL TYPE-
LT-19
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4. Select the desired part to be diagnosed on the “SELECT DIAG
MODE” screen.
DATA MONITOR
Operation Procedure
1. Touch “DATA MONITOR” on “SELECT DIAG MODE ” screen.
2. Touch “ALL SIGNALS”, “MAIN SIGNALS” or “SELECT FROM MENU” on “SELECT MONITOR ITEM”
screen.
3. When “SELECTION FROM MENU” is selected, touch individual items to be monitored. In “ALL SIG-
NALS”, all items are monitored. In “MAIN SIGNALS”, predetermined items are monitored.
4. Touch “START”.
5. Touch “RECORD” while monitoring to record the status of the item being monitored. To stop recording,
touch “STOP”.
All Items, Main Items, Selection From Menu
NOTE:
lPerform monitoring of IPDM E/R data with the ignition switch ON. When the ignition switch is at ACC, the display may not be cor-
rect.
l*1: Vehicle without day time light system display this item, but cannot be tested.
ACTIVE TEST
Operation Procedure
1. Touch “ACTIVE TEST” on “SELECT DIAG MODE” screen.
2. Touch “EXTERNAL LAMPS” on “SELECT TEST ITEM” screen.
3. Touch item to be tested, and check operation.
4. Touch “START”.
5. Touch “STOP” while testing to stop the operation.
BCIA0031E
ALL SIGNALS Monitors all items.
MAIN SIGNALS Monitor the predetermined item.
SELECTION FROM MENU Selects items and monitors them.
Item nameCONSULT-II
screen displayDisplay
or unitMonitor item selection
Description
ALL
SIGNALSMAIN
SIGNALSSELECTION
FROM
MENU
Position lights request TAIL&CLR REQ ON/OFF´´ ´Signal status input from BCM
Headlamp low beam request HL LO REQ ON/OFF´´ ´Signal status input from BCM
Headlamp high beam request HL HI REQ ON/OFF´´ ´Signal status input from BCM
Front fog lights request FR FOG REQ ON/OFF´´ ´Signal status input from BCM
Daytime lights request*
1DTRL REQ ON/OFF´´ ´Signal status input from BCM

LT-46
HEADLAMP - DAYTIME LIGHT SYSTEM -
4. Select the desired part to be diagnosed on “SELECT DIAG
MODE” screen.
DATA MONITOR
Operation Procedure
1. Touch “DATA MONITOR” on “SELECT DIAG MODE ” screen.
2. Touch “ALL SIGNALS”, “MAIN SIGNALS” or “SELECTION FROM MENU” on “SELECT MONITOR ITEM”
screen.
3. When “SELECTION FROM MENU” is selected, touch individual items to be monitored. In “ALL SIG-
NALS”, all items are monitored. In “MAIN SIGNALS”, predetermined items are monitored.
4. Touch “START”.
5. Touch “RECORD” while monitoring to record the status of the item being monitored. To stop recording,
touch “STOP”.
All Signals, Main Signals, Selection From Menu
NOTE:
Perform monitoring of IPDM E/R data with the ignition switch ON. When the ignition switch is at ACC, the display may not be correct.
ACTIVE TEST
Operation Procedure
1. Touch “ACTIVE TEST” on “SELECT DIAG MODE” screen.
2. Touch “EXTERNAL LAMPS” on “SELECT TEST ITEM” screen.
3. Touch item to be tested, and check operation.
4. Touch “START”.
5. Touch “OFF” while testing to stop the operation.
BCIA0031E
ALL SIGNALS Monitors all items.
MAIN SIGNALS Monitor the predetermined item.
SELECTION FROM MENU Selects items and monitors them.
Item nameCONSULT-II
screen displayDisplayMonitor item selection
Description
ALL
SIGNALSMAIN
SIGNALSSELECTION
FROM MENU
Position lights requestTA I L & C L R
REQON/OFF´´ ´Signal status input from BCM
Headlamp low beam request HL LO REQ ON/OFF´´ ´Signal status input from BCM
Headlamp high beam request HL HI REQ ON/OFF´´ ´Signal status input from BCM
Front fog lights request FR FOG REQ ON/OFF´´ ´Signal status input from BCM
Daytime light request DTRL REQ ON/OFF´´ ´Signal status input from BCM

HEADLAMP - DAYTIME LIGHT SYSTEM -
LT-47
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Daytime Light Control Does Not Operate Properly (Normal Headlamps Operate
Properly)
EKS00Q7Q
1.CHECK COMBINATION SWITCH INPUT SIGNAL
1. Select “BCM” on CONSULT-II. Select “HEAD LAMP” on
“SELECT TEST ITEM” screen.
2. Select “DATA MONITOR” on “SELECT DIAG MODE” screen.
3. Make sure that “LIGHT SW 1ST”, “HEADLAMP SW 1” and
“HEADLAMP SW 2” turns ON-OFF linked with operation of light-
ing switch.
OK or NG
OK >> GO TO 2.
NG >> Check combination switch (lighting switch). Refer toLT- 11 8 , "
Combination Switch Inspection".
2.CHECK IPDM E/R
1. Start engine running.
2. Select “IPDM E/R” on CONSULT-II. Select “DATA MONITOR”
on “SELECT DIAG MODE” screen.
3. Make sure “DTRL REQ” turns ON when lighting switch is in OFF
position.
OK or NG
OK >> Replace IPDM E/R. Refer toPG-26, "Removal and
Installation of IPDM E/R".
NG >> Replace BCM. Refer toBCS-17, "
Removal and Installa-
tion of BCM".
CONSULT-II screen
displayTest item Description
EXTERNAL
LAMPTAIL Tail lamp relay operation Allows tail lamp relay to operate by switching operation ON.
HI, LOHeadlamp relay (HI, LO)
operationAllows headlamp relay (HI, LO) to operate by switching operation (HI, LO)
ON. (Headlamp high beam repeats ON-OFF every 1 second)
FOGFront fog lamp relay oper-
ationAllows front fog lamp relay to operate by switching operation ON.
OFF — Stoptheactivetest.
When lighting switch is
OFF position:LIGHTSW1STOFF
: HEAD LAMP SW 1 OFF
: HEAD LAMP SW 2 OFF
SKIB6468E
Engine running : DTRL REQ ON
SKIB6469E