NISSAN TERRANO 2004 Service Repair Manual

How to switch diagnostic test modes
*1: EC-310*2: EC-35*3: EC-310YEC252A
ON BOARD DIAGNOSTIC SYSTEM DESCRIPTIONZD30DDTi
Malfunction Indicator (MI) (Cont'd)
EC-36
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Diagnostic test mode I Ð Bulb check
In this mode, the MI on the instrument panel should stay ON. If it remains OFF, check the bulb. Refer to EL
section, ªWARNING LAMPS AND CHIMEº or see EC-310.
Diagnostic test mode I Ð Malfunction warning
MICondition
ON When the malfunction is detected or the ECM's CPU is malfunctioning.
OFF No malfunction.
Diagnostic test mode II Ð Self-diagnostic results
In this mode, DTC is indicated by the number of blinks of the MI as shown below.
Long (0.6 second) blinking indicates the two LH digits of number and short (0.3 second) blinking indicates the
two RH digits of number. For example, the MI blinks 10 times for 6 seconds (0.6 sec x 10 times) and then it
blinks three times for about 1 second (0.3 sec x 3 times). This indicates the DTC ª1003º.
In this way, all the detected malfunctions are classified by their DTC numbers. The DTC ª0505º refers to no
malfunction. (See TROUBLE DIAGNOSIS Ð INDEX, EC-7.)
How to erase diagnostic test mode II (Self-diagnostic results)
The DTC can be erased from the backup memory in the ECM when the diagnostic test mode is changed from
Diagnostic Test Mode II to Diagnostic Test Mode I. (Refer to ªHow to Switch Diagnostic Test Modesº, EC-36.)
I If the battery terminal is disconnected, the DTC will be lost from the backup memory within 24
hours.
I Be careful not to erase the stored memory before starting trouble diagnoses.
SEF298QA
SEF162PB
ON BOARD DIAGNOSTIC SYSTEM DESCRIPTIONZD30DDTi
Malfunction Indicator (MI) (Cont'd)
EC-37
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Relationship between MI, DTC, CONSULT-II and driving patterns
*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: The DTC will not be displayed any
longer after vehicle is driven 40
times without the same malfunc-
tion. (The DTC still remain in
ECM.) *5: Other screens except SELF-DIAG-
NOSTIC RESULTS & DATA
MONITOR (AUTO TRIG) cannot
display the malfunction. DATA
MONITOR (AUTO TRIG) can dis-
play the malfunction at the
moment it is detected.
PBIB0589E
ON BOARD DIAGNOSTIC SYSTEM DESCRIPTIONZD30DDTi
Malfunction Indicator (MI) (Cont'd)
EC-38
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CONSULT-II
CONSULT-II INSPECTION PROCEDURE
1. Turn ignition switch OFF.
2. Connect CONSULT-II to data link connector, which is locatedunder the driver side dash panel.
3. Turn ignition switch ON.
4. Touch ªSTART (NISSAN BASED VHCL)º.
5. Touch ªENGINEº.
If ªENGINEº is not indicated, go to GI section, ªCONSULT-II Data
Link Connector (DLC) Circuitº.
6. Perform each diagnostic test mode according to each service procedure.
For further information, see the CONSULT-II Operation Manual.
MEC992D
MBIB0233E
SEF995X
PBIB0410E
ON BOARD DIAGNOSTIC SYSTEM DESCRIPTIONZD30DDTi
EC-39
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ENGINE CONTROL COMPONENT PARTS/CONTROL
SYSTEMS APPLICATION
ItemDIAGNOSTIC TEST MODE
SELF-DIAG RESULTS DATA MONI-
TOR ACTIVE
TEST
ENGINE CONTROL COMPONENT PARTS
INPUT Engine coolant temperature sensor X X
Vehicle speed sensor X X
Accelerator position sensor X X X
Accelerator position switch X X
Accelerator switch (F/C) X X
Crankshaft position sensor (TDC) X X
Ignition switch (start signal) X
Park/Neutral position (PNP) switch X
Battery voltage X
Air conditioner switch X
Mass air flow sensor X X
Stop lamp switch X X
Heat up switch X
Charge air pressure sensor X
OUTPUT Glow relay
XX
EGR volume control valve X X X
Cooling fan relay X X X
Air conditioner relay X
Variable nozzle turbocharger control solenoid valve X
Swirl control valve control solenoid valve X X
X: Applicable
SELF-DIAGNOSTIC MODE
Regarding items detected in ªSELF-DIAG RESULTSº mode,
refer to ªTROUBLE DIAGNOSIS Ð INDEXº, EC-7.
DATA MONITOR MODE
Monitored item
[Unit] ECM
input
signals Main
signals Description Remarks
CKPS×RPM (TDC)
[rpm] qqI
The engine speed computed from the
crankshaft position sensor (TDC) signal
is displayed.
CMPS×RPM×PUMP
[rpm] qqI
The engine speed computed from the
pulse signal sent from electronic control
fuel injection pump is displayed.
COOLAN TEMP/S
[ÉC] or [ÉF] qqI
The engine coolant temperature (deter-
mined by the signal voltage of the engine
coolant temperature sensor) is displayed. I
When the engine coolant temperature
sensor is open or short-circuited, ECM
enters fail-safe mode. The engine cool-
ant temperature determined by the ECM
is displayed.
VHCL SPEED SE
[km/h] or [mph] qqI
The vehicle speed computed from the
vehicle speed sensor signal is displayed.
ON BOARD DIAGNOSTIC SYSTEM DESCRIPTIONZD30DDTi
CONSULT-II (Cont'd)
EC-40
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Monitored item
[Unit]ECM
input
signals Main
signals Description Remarks
FUEL TEMP SEN
[ÉC] or [ÉF] qqI
The fuel temperature (sent from elec-
tronic control fuel injection pump) is dis-
played.
ACCEL POS SEN [V] qqI
The accelerator position sensor signal
voltage is displayed.
FULL ACCEL SW
[ON/OFF] qqI
Indicates [ON/OFF] condition from the
accelerator position switch signal.
ACCEL SW (FC)
[OPEN/CLOSE] qqI
Indicates [OPEN/CLOSE] condition from
the accelerator switch (FC) signal.
OFF ACCEL SW
[ON/OFF] qqI
Indicates [ON/OFF] condition from the
accelerator position switch signal.
SPILL/V [ÉCA] qI
The control position of spill valve (sent
from electronic control fuel injection
pump) is displayed.
BATTERY VOLT [V] qqI
The power supply voltage of ECM is dis-
played.
P/N POSI SW
[ON/OFF] qqI
Indicates [ON/OFF] condition from the
park/neutral position switch signal.
START SIGNAL
[ON/OFF] qqI
Indicates [ON/OFF] condition from the
starter signal. I
After starting the engine, [OFF] is dis-
played regardless of the starter signal.
AIR COND SIG
[ON/OFF] qqI
Indicates [ON/OFF] condition of the air
conditioner switch as determined by the
air conditioner signal.
BRAKE SW [ON/OFF] qqI
Indicates [ON/OFF] condition from the
stop lamp switch signal.
IGN SW
[ON/OFF] qqI
Indicates [ON/OFF] condition from igni-
tion switch signal.
WARM UP SW
[ON/OFF] qI
Indicates [ON/OFF] condition from the
heat up switch signal.
MAS AIR/FL SE [V] qqI
The signal voltage of the mass air flow
sensor is displayed. I
When the engine is stopped, a certain
value is indicated.
DECELER F/CUT
[ON/OFF] qI
The [ON/OFF] condition from decelera-
tion fuel cut signal (sent from electronic
control fuel injection pump) is displayed.
INJ TIMG C/V [%] qI
The duty ratio of fuel injection timing
control valve (sent from electronic control
fuel injection pump) is displayed.
AIR COND RLY
[ON/OFF] qI
Indicates the control condition of the air
conditioner relay (determined by ECM
according to the input signals).
GLOW RLY [ON/OFF] qI
The glow relay control condition (deter-
mined by ECM according to the input
signal) is displayed.
COOLING FAN
[ON/OFF] qI
Indicates the control condition of the
cooling fans (determined by ECM
according to the input signal).
I ON ... Operates.
OFF ... Stopped.
ON BOARD DIAGNOSTIC SYSTEM DESCRIPTIONZD30DDTi
CONSULT-II (Cont'd)
EC-41
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Monitored item
[Unit]ECM
input
signals Main
signals Description Remarks
EGR VOL CON/V
[step] qI
Indicates the EGR volume control value
computed by the ECM according to the
input signals.
I The opening becomes larger as the
value increases.
VNT S/V 1 [%] IIndicates the variable nozzle turbo-
charger control solenoid valve control
value computed by the ECM according
to the input signals.
BARO SEN [kPa]
qI
The barometric pressure (determined by
the signal voltage from the barometric
pressure sensor built into the ECM) is
displayed.
SWRL CON S/V 1
[ON/OFF]
qI
The control condition of the swirl control
valve control solenoid valve (determined
by ECM according to the input signals) is
indicated.
I ON ... Swirl control valve is closed.
I OFF ... Swirl control valve is opened.
NOTE:
Any monitored item that does not match the vehicle being diagnosed is deleted from the display automatically.
ON BOARD DIAGNOSTIC SYSTEM DESCRIPTIONZD30DDTi
CONSULT-II (Cont'd)
EC-42
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ACTIVE TEST MODE
TEST ITEMCONDITION JUDGEMENTCHECK ITEM (REMEDY)
COOLING FAN I
Ignition switch: ON
I Operate the cooling fan at
ªLOWº, ªHIº speed and turn
ªOFFº using CONSULT-II. Cooling fan moves at ªLOWº, ªHIº
speed and stops.
I
Harness and connector
I Cooling fan motor
I Cooling fan relay
OFF ACCEL PO
SIG I
Clears the self-learning fully closed accelerator position, detected by accelerator position sensor, from the
ECM.
GLOW RLY I
Ignition switch: ON (Engine
stopped)
I Turn the glow relay ªONº and
ªOFFº using CONSULT-II and
listen to operating sound. Glow relay makes the operating
sound.
I
Harness and connector
I Glow relay
INJ TIMING* I
Engine: Return to the original
trouble condition
I Retard the injection timing using
CONSULT-II. If trouble symptom disappears, see
CHECK ITEM.
I
Electronic control fuel injection
pump
SWIRL CONT S/V1 I
Ignition switch: ON
I Turn solenoid valve ªONº and
ªOFFº with the CONSULT-II and
listen to operating sound. Solenoid valve makes an operating
sound.
I
Harness and connector
I Solenoid valve
EGR VOL CONT/V I
Ignition switch: ON
I Change EGR volume control
valve opening step using CON-
SULT-II. EGR volume control valve makes
an operating sound.
I
Harness and connector
I EGR volume control valve
*: When using this item, DTC 0707 ªP7 ×F/INJ TIMG FBº may be detected. If so, erase it because it is not a malfunction.
ON BOARD DIAGNOSTIC SYSTEM DESCRIPTIONZD30DDTi
CONSULT-II (Cont'd)
EC-43
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REAL TIME DIAGNOSIS IN DATA MONITOR MODE
CONSULT-II has two kinds of triggers and they can be selected by
touching ªSETTINGº in ªDATA MONITORº mode.
1) ªAUTO TRIGº (Automatic trigger):
IThe malfunction will be identified on the CONSULT-II screen in
real time.
In other words, DTC will be displayed if the malfunction is
detected by ECM.
At the moment a malfunction is detected by ECM, ªMONITORº
in ªDATA MONITORº screen is changed to ªRecording Data ...
xx%º as shown at left, and the data after the malfunction detec-
tion is recorded. Then when the percentage reached 100%,
ªREAL-TIME DIAGº screen is displayed. If ªSTOPº is touched
on the screen during ªRecording Data ... xx%º, ªREAL-TIME
DIAGº screen is also displayed.
The recording time after the malfunction detection and the
recording speed can be changed by ªTRIGGER POINTº and
ªRecording Speedº. Refer to CONSULT-II OPERATION
MANUAL.
2) ªMANU TRIGº (Manual trigger):
I DTC will not be displayed automatically on CONSULT-II screen
even though a malfunction is detected by ECM.
DATA MONITOR can be performed continuously even though
a malfunction is detected.
Use these triggers as follows:
1) ªAUTO TRIGº
I While trying to detect the DTC by performing the ªDTC Confir-
mation Procedureº, be sure to select to ªDATA MONITOR
(AUTO TRIG)º mode. You can confirm the malfunction at the
moment it is detected.
I While narrowing down the possible causes, CONSULT-II
should be set in ªDATA MONITOR (AUTO TRIG)º mode, espe-
cially in case the incident is intermittent.
When you are inspecting the circuit by gently shaking (or twist-
ing) the suspicious connectors, components and harness in the
ªDTC Confirmation Procedureº, the moment a malfunction is
found the DTC will be displayed. (Refer to GI section, ªIncident
Simulation Testsº in ªHOW TO PERFORM EFFICIENT DIAG-
NOSIS FOR AN ELECTRICAL INCIDENTº.)
2) ªMANU TRIGº
I If the malfunction is displayed as soon as ªDATA MONITORº is
selected, reset CONSULT-II to ªMANU TRIGº. By selecting
ªMANU TRIGº you can monitor and store the data. The data
can be utilized for further diagnosis, such as a comparison with
the value for the normal operating condition.
SEF373Y
SEF707X
ON BOARD DIAGNOSTIC SYSTEM DESCRIPTIONZD30DDTi
CONSULT-II (Cont'd)
EC-44
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SEF720X
ON BOARD DIAGNOSTIC SYSTEM DESCRIPTIONZD30DDTi
CONSULT-II (Cont'd)EC-45
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