2005 NISSAN NAVARA ignition

ON BOARD DIAGNOSTIC (OBD) SYSTEM
EC-31
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EC
Relationship Between MI, DTC, CONSULT-II and Driving PatternsEBS01KCS
*1: When a malfunction is detected, MI
will light up.*2: MI will not light up after ignition
switch is turned OFF.*3: When a malfunction is detected for
the first time, the DTC will be stored
in ECM.
*4: Other screens except SELF-DIAG-
NOSTIC RESULTS & DATA MONI-
TOR (AUTO TRIG) cannot display
the malfunction. DATA MONITOR
(AUTO TRIG) can display the mal-
function at the moment it is detected.*5: The DTC will not be displayed any
longer after vehicle is driven 40 times
(Driving pattern A) without the same
malfunction. (The DTC still remain in
ECM.)
MBIB0622E

TROUBLE DIAGNOSIS
EC-43
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EC
1 - 5: The numbers refer to the order of inspection.
(continued on next page)
ENGINE CONTROL
Crankshaftpositionsensorcircuit 1111111111EC-159
Camshaft position sensor circuit 3 3EC-171
Turbocharger boost sensor circuit 1 1 1EC-153
Turbocharger boost control solenoid
valve circuit111EC-309
Intake air control valve control solenoid
valve circuit11111111EC-314
Start signal circuit 1 1 1 1 1 1 1 1 1EC-348
Ignition switch circuit 1 1 1 1EC-71
Heat up switch circuit1EC-319
Power supply for ECM circuit 1 1 1 1EC-71
Cooling fan relay circuitEC-132
EGR volume control valve circuit 1 1 1EC-302
Glow relay circuit 1 1 1EC-295
ECM relay (Self shut-off) circuit 1 1 1 1EC-232
ECM 2222222222222EC-213
,
EC-215
,
EC-269
NATS (Nissan Anti-theft System) 1EC-28
SYSTEM — Basic engine control systemSYMPTOM
Reference
pageHARD/NO START/RESTART (EXCP. HA)
ENGINE STALL
HESITATION/SURGING/FLAT SPOT
KNOCK/DETONATION
LACK OF POWER
POOR ACCELERATION
HI IDLE
LOW IDLE NO START (with first firing)
NO START (without first firing)
HARD TO START WHEN ENGINE IS COLD
HARD TO START WHEN ENGINE IS HOT
AT I D L E
DURING DRIVING
WHEN DECELERATING
Warranty symptom code AA AB AC AD AE AF

TROUBLE DIAGNOSIS
EC-45
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EC
1 - 5: The numbers refer to the order of inspection.
ENGINE CONTROL
Crankshaft position sensor circuit 1 1 1 1EC-159
Camshaft position sensor circuit11EC-171
Turbocharger boost sensor circuit 1 1EC-153
Turbocharger boost control solenoid valve cir-
cuit11EC-309
Start signal circuitEC-348
Ignition switch circuitEC-71
Heat up switch circuitEC-319
Power supply for ECM circuit11EC-71
Cooling fan relay circuit 2EC-132
EGR volume control valve circuit 1EC-302
Glow relay circuit1EC-295
ECM relay (Self shut-off) circuit1EC-232
ECM 22 22222 2222EC-213
,
EC-215
,
EC-269
NATS (Nissan Anti-theft System)1EC-28
SYSTEM — Basic engine control systemSYMPTOM
Reference
page
ROUGH IDLE/HUNTING
IDLING VIBRATION
SLOW/NO RETURN TO IDLE
OVERHEAT/HIGH ENGINE COOLANT TEMPERATURE
EXCESSIVE FUEL CONSUMPTION
EXCESSIVE OIL CONSUMPTION
ABNORMAL SMOKE COLOR
DEAD BATTERY (UNDER CHARGE)
Malfunction indicator illuminates.
Can be detected by CONSULT-II?BLACK SMOKE
WHITE SMOKE
Warranty symptom code AG AH AJ AK AL AM AP HA

TROUBLE DIAGNOSIS
EC-53
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EC
4
5V
GFuel injector power supply
(For cylinder No. 1 and 4)
Fuel injector power supply
(For cylinder No. 2 and 3)[Engine is running]
lWarm-up condition
lIdle speed
NOTE:
The pulse cycle changes depending on rpm
at idleApproximately 7.5V
[Engine is running]
lWarm-up condition
lEngine speed: 2,000 rpmApproximately 8.0V
6BRTurbocharger boost control
solenoid valve[Engine is running]
lWarm-up condition
lIdle speedApproximately 6.3V
[Engine is running]
lWarm-up condition
lEngine speed: 2,000 rpmApproximately 8.6V
10 G Fuel pump[Engine is running]
lWarm-up condition
lIdle speedApproximately 5.8V
[Engine is running]
lWarm-up condition
lEngine speed: 2,000 rpmApproximately 5.5V
13 Y Heat up switch[Ignition switch ON]
lHeat up switch: OFFApproximately 0.3V
[Ignition switch ON]
lHeat up switch: ONBATTERY VOLTAGE
(11 - 14V) TERMI-
NAL
NO.WIRE
COLORITEM CONDITIONDATA
(DC Voltage and Pulse Signal)
MBIB1295E
MBIB1296E
MBIB0889E
MBIB0890E
MBIB0885E
MBIB0886E

EC-54
TROUBLE DIAGNOSIS
15 GRIntake air control valve con-
trol solenoid valve[Engine is running]BATTERY VOLTAGE
(11 - 14V)
[Ignition switch OFF]
lFor a few seconds after turning ignition
switch OFFApproximately 0.3V
21
22
23
24G
P
W
WFuel injector No. 2
Fuel injector No. 2
Fuel injector No. 3
Fuel injector No. 3[Engine is running]
lWarm-up condition
lIdle speed
NOTE:
The pulse cycle changes depending on rpm
at idleApproximately 7.5V
[Engine is running]
lWarm-up condition
lEngine speed: 2,000 rpmApproximately 8.0V
25
26
27
28Y
O
GR
VEGR volume control valve[Engine is running]
lWarm-up condition
lIdle speed0.1 - 14V
(Voltage signals of each ECM
terminals differ according to the
control position of EGR volume
control valve.)
29 B Fuel pump[Engine is running]
lWarm-up condition
lIdle speed0.5 - 1.0V
[Engine is running]
lWarm-up condition
lEngine speed: 2,000 rpm0.5 - 1.0V
37 G Glow relay Refer toEC-295, "
GLOW CONTROL SYSTEM". TERMI-
NAL
NO.WIRE
COLORITEM CONDITIONDATA
(DC Voltage and Pulse Signal)
MBIB1297E
MBIB1298E
MBIB0887E
MBIB0888E

TROUBLE DIAGNOSIS
EC-55
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EC
40
41
42
43W
GR
W
BFuel injector No. 4
Fuel injector No. 4
Fuel injector No. 1
Fuel injector No. 1[Engine is running]
lWarm-up condition
lIdle speed
NOTE:
The pulse cycle changes depending on rpm
at idleApproximately 7.5V
[Engine is running]
lWarm-up condition
lEngine speed: 2,000 rpmApproximately 8.0V
44 WCrankshaft position sensor
power supply[Ignition switch ON]Approximately 5.3V
45 WCamshaft position sensor
power supply[Ignition switch ON]Approximately 5.3V
46 R Crankshaft position sensor[Engine is running]
lWarm-up condition
lIdle speed
NOTE:
The pulse cycle changes depending on rpm
at idleApproximately 3.7V
[Engine is running]
lWarm-up condition
lEngine speed: 2,000 rpmApproximately 3.7V
47 R Camshaft position sensor[Engine is running]
lWarm-up condition
lIdle speed
NOTE:
The pulse cycle changes depending on rpm
at idleApproximately 4.9V
[Engine is running]
lWarm-up condition
lEngine speed: 2,000 rpmApproximately 4.9V TERMI-
NAL
NO.WIRE
COLORITEM CONDITIONDATA
(DC Voltage and Pulse Signal)
MBIB1297E
MBIB1298E
MBIB0879E
MBIB0880E
MBIB0877E
MBIB0878E

EC-56
TROUBLE DIAGNOSIS
48
49L
BFuel rail pressure sensor[Engine is running]
lWarm-up condition
lIdle speed1.7 - 2.0V
[Engine is running]
lWarm-up condition
lEngine speed: 2,000 rpm2.0 - 2.3V
50 YFuel pump temperature sen-
sor[Engine is running]
lWarm-up conditionApproximately 0.3 - 5.3V
Output voltage varies with fuel
pump temperature
51 SBEngine coolant temperature
sensor[Engine is running]
lWarm-up conditionApproximately 0.3 - 5.3V
Output voltage varies with engine
coolant temperature
52 BR Turbocharger boost sensor[Engine is running]
lWarm-up condition
lIdle speed2.1 - 2.4V
[Engine is running]
lWarm-up condition
lEngine speed: 2,000 rpm2.3 - 2.6V
53 W Refrigerant pressure sensor[Engine is running]
lWarm-up condition
lBoth A/C switch and blower switch: ON
(Compressor operates)1.0 - 4.0V
54 G Mass air flow sensor[Ignition switch: ON]Approximately 0.7V
[Engine is running]
lWarm-up condition
lIdle speed1.6 - 2.0V
[Engine is running]
lWarm-up condition
lEngine is revving from idle to about 4,000
rpm.1.6 - 2.0V to Approximately 4.3V
(Check for liner voltage rise in
response to engine being
increased to about 4,000 rpm)
55 WIntake air temperature sen-
sor[Engine is running]
lWarm-up conditionApproximately 0.3 - 5.2V
Output voltage varies with intake
air temperature
63 RFuel rail pressure sensor
power supply[Ignition switch ON]Approximately 5.3V
64 VSensor power supply
(Turbocharger boost sensor /
Refrigerant pressure sensor)[Ignition switch ON]Approximately 5.3V
65 BCrankshaft position sensor
ground[Ignition switch ON]Approximately 0.3V
66 BCamshaft position sensor
ground[Ignition switch ON]Approximately 0.3V
67 —Sensor ground
(Sensor shield circuit)[Ignition switch ON]Approximately 0.3V
68 WFuel rail pressure sensor
ground[Ignition switch ON]Approximately 0.3V
69 BFuel pump temperature sen-
sor ground[Ignition switch ON]Approximately 0.3V
70 LGEngine coolant temperature
sensor ground[Ignition switch ON]Approximately 0.3V TERMI-
NAL
NO.WIRE
COLORITEM CONDITIONDATA
(DC Voltage and Pulse Signal)

TROUBLE DIAGNOSIS
EC-57
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EC71 LTurbocharger boost sensor
ground[Ignition switch ON]Approximately 0.3V
72 BRRefrigerant pressure sensor
ground[Engine is running]
lWarm-up condition
lIdle speedApproximately 0.3V
73 B Mass air flow sensor ground[Ignition switch ON]Approximately 0.3V
74 RIntake air temperature sen-
sor ground[Ignition switch ON]Approximately 0.3V
82 WAccelerator pedal position
sensor 1 power supply[Ignition switch ON]Approximately 5.3V
83 RAccelerator pedal position
sensor 1[Ignition switch ON]
lEngine: Stopped
lAccelerator pedal: Fully released0.95 - 1.17V
[Ignition switch ON]
lEngine: Stopped
lAccelerator pedal: Fully depressedMore than 4.6V
84 BAccelerator pedal position
sensor 1 ground[Ignition switch ON]Approximately 0.3V
85 —Sensor ground
(Accelerator pedal position
sensor shield circuit)[Ignition switch ON]Approximately 0.3V
87 P CAN communication line[Ignition switch ON]Approximately 2.0 - 2.6V
Output voltage varies with the
communication status.
89 SB Data link connector[Ignition switch ON]
lCONSULT-II: DisconnectedApproximately 0V - Battery volt-
age (11 - 14V)
90 WAccelerator pedal position
sensor 2 power supply[Ignition switch ON]Approximately 5.3V
91 RAccelerator pedal position
sensor 2[Ignition switch ON]
lEngine: Stopped
lAccelerator pedal: Fully released0.58 - 0.78V
[Ignition switch ON]
lEngine: Stopped
lAccelerator pedal: Fully depressedMore than 2.3V
92 BAccelerator pedal position
sensor 2 ground[Ignition switch ON]Approximately 0.3V
95 L CAN communication line[Ignition switch ON]Approximately 2.6 - 3.2V
Output voltage varies with the
communication status.
99 V Start signal[Ignition switch ON]Approximately 0.3V
[Ignition switch START]BATTERY VOLTAGE
(11 - 14V)
100 V Stop lamp switch[Ignition switch OFF]
lBrake pedal: Fully releasedApproximately 0V
[Ignition switch OFF]
lBrake pedal: Slightly depressedBATTERY VOLTAGE
(11 - 14V) TERMI-
NAL
NO.WIRE
COLORITEM CONDITIONDATA
(DC Voltage and Pulse Signal)