2005 NISSAN NAVARA engine control

TROUBLE DIAGNOSIS
ATC-91
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AT C
8.CHECK REFRIGERANT PRESSURE SENSOR
WITH CONSULT-II
1. Start engine.
2. Check voltage of refrigerant pressure sensor. Refer toAT C - 3 3 , "
CONSULT-II Function (BCM)".
WITHOUT CONSULT-II
1. Start engine.
2. Check voltage between ECM harness connector F1 terminal 53
and ground.
OK or NG
OK >>lWITH CONSULT-II
GO TO 9.
lWITHOUT CONSULT-II
GO TO 10.
NG >> Refer toEC-325, "
REFRIGERANT PRESSURE SENSOR".
9.CHECK BCM INPUT (FAN ON) SIGNAL
Check FAN ON/OFF signal. Refer toAT C - 3 3 , "
CONSULT-II Function
(BCM)".
OK or NG
OK >> GO TO 12.
NG >> GO TO 10.
10.CHECK CIRCUIT CONTINUITY BETWEEN BCM AND FRONT AIR CONTROL
1. Turn ignition switch OFF.
2. Disconnect BCM connector and front air control connector.
3. Check continuity between BCM harness connector M42 terminal
26 and front air control harness connector M61 terminal 35.
OK or NG
OK >> GO TO 11.
NG >> Repair harness or connector.
Te r m i n a l s
ConditionVo l ta g e
(Approx.) (+)
(-)
ECM con-
nectorTerminal No.
F1 53 Ground A/C switch: ON 0.36 - 3.88V
MJIB0071E
FRONT BLOWER CONTROL
DIAL ON: FAN ON SIG ON
FRONT BLOWER CONTROL
DIAL OFF:FANONSIGOFF
WJIA0469E
26 - 35 Continuity should exist.
MJIB0072E

TROUBLE DIAGNOSIS
ATC-105
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AT C
Ambient Sensor CircuitEJS006BW
COMPONENT DESCRIPTION
Ambient Sensor
Ambient sensor is attached to the radiator core support (left side). It
detects ambient temperature and converts it into a resistance value
which is then input into the front air control.
AMBIENT TEMPERATURE INPUT PROCESS
The front air control includes a processing circuit for ambient sensor input. However, when the temperature
detected by ambient sensor increases quickly, the processing circuit retards the front air control function. It
only allows the front air control to recognize an ambient temperature increase of 0.33°C(0.6°F) per 100 sec-
onds.
This prevents constant adjustments due to momentary conditions, such as stopping after high speed driving.
Although the actual ambient temperature has not changed, the temperature detected by ambient sensor will
increase. This is because the heat from the engine compartment can radiate to the front grille area, location of
ambient sensor .
DIAGNOSTIC PROCEDURE FOR AMBIENT SENSOR
SYMPTOM: Ambient sensor circuit is open or shorted. (40 or 41 is
indicated on front air control as a result of conducting the front air
control self-diagnosis)
1.CHECK VOLTAGE BETWEEN AMBIENT SENSOR AND GROUND
1. Disconnect ambient sensor connector.
2. Turn ignition switch ON.
3. Check voltage between ambient sensor harness connector E48
terminal 4 and ground.
OK or NG
OK >> GO TO 2.
NG >> GO TO 4.
MJIB0168E
MJIB0090E
4 - Ground : Approx. 5V
MJIB0091E

ATC-152
REFRIGERANT LINES
3. Move probe along component approximately 25 to 50 mm (1 to
2 in)/sec.
CHECKING PROCEDURE
To prevent inaccurate or false readings, make sure there is no refrigerant vapor, shop chemicals, or cigarette
smoke in the vicinity of the vehicle. Perform the leak test in calm area (low air/wind movement) so that the
leaking refrigerant is not dispersed.
1. Turn engine OFF.
2. Connect a suitable A/C manifold gauge set (SST) to the A/C service valves.
3. Check if the A/C refrigerant pressure is at least 345 kPa (3.45 bar, 3.52 kg/cm
2,50psi)above16°C. If
less than specification, recover/evacuate and recharge the system with the specified amount of refriger-
ant.
NOTE:
At temperatures below 16°C, leaks may not be detected since the system may not reach 345 kPa (3.45
bar, 3.52 kg/cm
2,50psi).
4. Perform the leak test from the high-pressure side (compressor discharge a to evaporator inlet g) to the
low-pressure side (evaporator drain hose h to shaft seal l). Refer toATC-140, "
Components". Perform a
leak check for the following areas carefully. Clean the component to be checked and move the leak
detected probe completely around the connection/component.
Compressor
Check the fitting of high- and low-pressure flexible hoses, relief valve and shaft seal.
Liquid tank
Check the refrigerant pressure sensor.
Service valves
Check all around the service valves. Ensure service valve caps are secured on the service valves (to pre-
vent leaks).
NOTE:
After removing A/C manifold gauge set from service valves, wipe any residue from valves to prevent any
false readings by leak detector.
Cooling unit (Evaporator)
With engine OFF, turn blower fan on “High” for at least 15 seconds to dissipate any refrigerant trace in the
cooling unit. Wait a minimum of 10 minutes accumulation time (refer to the manufacturer’s recommended
procedure for actual wait time) before inserting the leak detector probe into the drain hose.
Keep the probe inserted for at least 10 seconds. Use caution not to contaminate the probe tip with water
or dirt that may be in the drain hose.
5. If a leak detector detects a leak, verify at least once by blowing compressed air into area of suspected
leak, then repeat check as outlined above.
6. Do not stop when one leak is found. Continue to check for additional leaks at all system components.
If no leaks are found, perform steps 7 - 10.
7. Start engine.
8. Set the heater A/C control as follows;
a. A/C switch: ON
b. MODE control dial: VENT (Ventilation)
c. Intake door position: Recirculation
d. Max. cold temperature
e. Fan speed: High
9. Run engine at 1,500 rpm for at least 2 minutes.
SHA708EA

ATC-154
SERVICE DATA AND SPECIFICATIONS (SDS)
SERVICE DATA AND SPECIFICATIONS (SDS)
PFP:00030
Service Data and Specifications (SDS)EJS006D5
COMPRESSOR
LUBRICANT
REFRIGERANT
ENGINE IDLING SPEED
Refer toEC-38, "Basic Inspection".
BELT TENSION
Refer toEM-13, "Deflection Adjustment".
Make ZEXEL VALEO CLIMATE CONTROL
Model DKS-17D
Type Swash plate
Displacement
175.5 cm
3(10.7 in3)/revolution
Cylinder bore´stroke 30.5 mm (1.20 in) x 24.0 mm (0.94 in)
Direction of rotation Clockwise (viewed from drive end)
Drive belt Poly V
Make ZEXEL VALEO CLIMATE CONTROL
Model DKS-17D
Name Genuine NISSAN A/C System Lubricant Type S (DH-PS)
Part number KLH00-PAGS0
CapacityWithout rear A/C
180 m (6.3 Imp fl oz)
With rear A/C
210 m (7.4 Imp fl oz)
Type HFC 134a (R-134a)
CapacityWithout rear A/C 0.70±0.05 kg (1.54±0.11 lb)
With rear A/C 0.85±0.05 kg (1.87±0.11 lb)

BL-18
RADIATOR CORE SUPPORT
RADIATOR CORE SUPPORT
PFP:62500
Removal and InstallationEIS00DGJ
REMOVAL
1. Remove the hood assembly. Refer toBL-14, "Removal and Installation of Hood Assembly".
2. Remove the front grille. Refer toEI-19, "
FRONT GRILLE".
3. Remove the front bumper, bumper reinforcement and bumper bracket. Refer toEI-15, "
FRONT BUMPER"
.
4. Remove the headlamp assembly (LH/RH). Refer toLT-30, "
Removal and Installation".
5. Remove the air intake duct (Air guide). Refer toEM-15, "
AIR CLEANER AND AIR DUCT".
6. Remove the charge air cooler. (for YD25 engine models only) Refer toEM-18, "
CHARGE AIR COOLER".
7. Remove the power steering oil cooler. Refer toPS-30, "
HYDRAULIC LINE".
8. Remove the A/T fluid cooler and A/T fluid cooler tube mounting nuts. Refer toAT- 2 4 4 , "
A/T FLUID
COOLER".
9. Remove the hood lock assembly, and then remove the hood lock cable. Refer toBL-15, "
Removal and
Installation of Hood Lock Control".
10. Remove the horn harness connector.
11. Disconnect the ambient sensor connector and remove the ambient sensor. Refer toAT C - 11 7 , "
Removal
and Installation".
12. Remove the mounting harness clip on radiator core support assembly, the harness is separate.
13. Remove the upper radiator bracket. Refer toCO-11, "
RADIATOR".
1. Radiator core support assembly 2. Air intake duct (Air guide) RH 3. Air intake duct (Air guide) LH
4. Horn (Low) 5. Headlamp lower bracket RH 6. Headlamp lower bracket LH
7. Headlamp side bracket RH 8. Headlamp side bracket LH
MIIB0979E

BL-140
THEFT WARNING SYSTEM
System Description
EIS00DBX
DESCRIPTION
Operation Flow
Setting the theft warning system
Initial condition
lIgnition switch is in OFF position.
Disarmed phase
lWhen the vehicle is being driven or when doors are open, the theft warning system is set in the disarmed
phase on the assumption that the owner is inside or near the vehicle.
Pre-armed phase and armed phase
lThe theft warning system turns into the “pre-armed” phase when all doors are closed and locked. The
security indicator lamp illuminates for 20 seconds. Then, the system automatically shifts into the “armed”
phase.
Canceling the set theft warning system
When one of the following operations is performed, the armed phase is canceled.
1. Unlock the doors with the keyfob.
2. Unlock the doors with the ignition key.
Activating the alarm operation of the theft warning system
Make sure the system is in the armed phase.
When any of the following operation 1, 2 or 3 is performed, the system sounds the siren control unit or horn
and flashes the turn signal lamps for about 30 seconds.
1. Engine hood or any doors is opened before unlocking door with keyfob.
10. a: Security indicator lamp
b: Combination meter M23
MIIB1032E
MIIB0867E

THEFT WARNING SYSTEM
BL-141
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2. A door is unlocked without using the keyfob.
3. Disconnect and connecting the battery connector before canceling armed phase.
POWER SUPPLY AND GROUND CIRCUIT
Power is supplied at all times
lthrough 10A fuse [No.19, located in the fuse block (J/B)]
lto combination meter (security indicator lamp) terminal 3
lthrough 50A fusible link (letterG, located in the fuse and fusible link box)
lto BCM terminal 57
lthrough 10A fuse [No. 21, located in the fuse block (J/B)]
lto BCM terminal 41
lthrough 15A fuse (No. 30, located in the fuse and fusible link box)
lto horn relay terminal 2
lthrough 20A fuse (No. 52, located in the IPDM E/R)
lthrough 20A fuse (No. 53, located in the IPDM E/R),
lto IPDM E/R internal CPU.
With the ignition switch in the ACC or ON position, power is supplied
lthrough 10A fuse [No. 4, located in the fuse block (J/B)]
lto BCM terminal 4.
Ground is supplied
lto BCM terminal 55
lthrough body grounds M21, M80 and M83
lto IPDM E/R terminals 38 and 59
lthrough body ground E21, E41 and E61.
INITIAL CONDITION TO ACTIVATE THE SYSTEM
The operation of the theft warning system is controlled by the engine hood and doors.
To activate the theft warning system, BCM must receive signals indicating the doors are closed and locked.
When a door is open, BCM terminal 12, 14, 15 or 16 receives a ground signal from each door switch.
When the engine hood is open, IPDM E/R terminal 41 receives a ground signal
THEFT WARNING SYSTEM ALARM OPERATION
The vehicle security system is triggered by
lopening a door
lopening the hood
ldetecting battery disconnect/connection.
The vehicle security system will be triggered once the system is in armed phase,
when BCM receives a ground signal at terminals 12, 14, 15, 16 (door switch) or IPDM E/R receives a ground
signal at terminal 41 (hood switch).
When the vehicle security system is triggered, siren control unit or horn is activate.
The alarm automatically turns off after 30 seconds, but will reactivate if the vehicle is tampered with again.
THEFT WARNING SYSTEM DEACTIVATION
To deactivate the theft warning system, a door must be unlocked with keyfob.
When the BCM receives either one of these signals or unlock signal from keyfob the theft warning system is
deactivated. (Disarmed phase)
CAN Communication System DescriptionEIS00DBY
Refer toLAN-23, "CAN COMMUNICATION".

BL-156
THEFT WARNING SYSTEM
TerminalsandReferenceValueforIPDME/R
EIS00DC3
*: When horn reminder is ON.
CONSULT-II Function (BCM)EIS00DC4
CONSULT-II can display each diagnostic item using the diagnostic test modes shown following.
CONSULT-II INSPECTION PROCEDURE
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 carry out CAN communication.
1. Turn ignition switch OFF.
2. Connect CONSULT-II and CONSULT-II CONVERTER to the
data link connector.
3. Turn ignition switch ON.
4. Touch “START (NISSAN BASED VHCL)”.
TerminalWire
ColorItem ConditionVoltage (V)
(Approx.)
38 B Ground — 0
39 L CAN-H — —
40 P CAN-L — —
41 G Engine hood switchON (hood open) 0
OFF (hood close) Battery voltage
45 BR Horn relayWhen doors locks are operated using
keyfob (OFF®ON) *Battery voltage®0
59 B Ground — 0
BCM diagnosis
partDiagnostic mode Description
THEFT ALMWORK SUPPORTSupports 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.
BBIA0538E
BCIA0029E