Nissan Terrano model r20 series 2004. Instruction — part 80
Monitored item
[Unit]
ECM
input
signals
Main
signals
Description
Remarks
EGR VOL CON/V
[step]
q
I
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 [%]
I
Indicates the variable nozzle turbo-
charger control solenoid valve control
value computed by the ECM according
to the input signals.
BARO SEN [kPa]
q
I
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]
q
I
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 DESCRIPTION
ZD30DDTi
CONSULT-II (Cont’d)
EC-42
ACTIVE TEST MODE
TEST ITEM
CONDITION
JUDGEMENT
CHECK ITEM (REMEDY)
COOLING FAN
I
Ignition switch: ON
I
Operate the cooling fan at
“LOW”, “HI” speed and turn
“OFF” using CONSULT-II.
Cooling fan moves at “LOW”, “HI”
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 “ON” and
“OFF” 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 “ON” and
“OFF” 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 “P7
⋅
F/INJ TIMG FB” may be detected. If so, erase it because it is not a malfunction.
ON BOARD DIAGNOSTIC SYSTEM DESCRIPTION
ZD30DDTi
CONSULT-II (Cont’d)
EC-43
REAL TIME DIAGNOSIS IN DATA MONITOR MODE
CONSULT-II has two kinds of triggers and they can be selected by
touching “SETTING” in “DATA MONITOR” mode.
1) “AUTO TRIG” (Automatic trigger):
I
The 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, “MONITOR”
in “DATA MONITOR” screen is changed to “Recording Data ...
xx%” as shown at left, and the data after the malfunction detec-
tion is recorded. Then when the percentage reached 100%,
“REAL-TIME DIAG” screen is displayed. If “STOP” is touched
on the screen during “Recording Data ... xx%”, “REAL-TIME
DIAG” screen is also displayed.
The recording time after the malfunction detection and the
recording speed can be changed by “TRIGGER POINT” and
“Recording
Speed”.
Refer
to
CONSULT-II
OPERATION
MANUAL.
2) “MANU TRIG” (Instruction 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) “AUTO TRIG”
I
While trying to detect the DTC by performing the “DTC Confir-
mation Procedure”, be sure to select to “DATA MONITOR
(AUTO TRIG)” 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 “DATA MONITOR (AUTO TRIG)” 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
“DTC Confirmation Procedure”, the moment a malfunction is
found the DTC will be displayed. (Refer to GI section, “Incident
Simulation Tests” in “HOW TO PERFORM EFFICIENT DIAG-
NOSIS FOR AN ELECTRICAL INCIDENT”.)
2) “MANU TRIG”
I
If the malfunction is displayed as soon as “DATA MONITOR” is
selected, reset CONSULT-II to “MANU TRIG”. By selecting
“MANU TRIG” 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 DESCRIPTION
ZD30DDTi
CONSULT-II (Cont’d)
EC-44
SEF720X
ON BOARD DIAGNOSTIC SYSTEM DESCRIPTION
ZD30DDTi
CONSULT-II (Cont’d)
EC-45
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