Nissan Primera P11. Instruction — part 81
SELF-DIAGNOSTIC MODE
Regarding items detected in “SELF-DIAG RESULTS” mode, refer to “Diagnostic Trouble chart”.
DATA MONITOR MODE
Monitored item
[Unit]
ECM
input
signals
Main
signals
Description
Remarks
CKPS
⋅
RPM
(TDC) [rpm]
q q
●
The engine speed computed from the
crankshaft position sensor (TDC) sig-
nal is displayed.
CMPS
⋅
RPM -
PUMP [rpm]
q q
●
The engine speed computed from the
camshaft position sensor (PUMP) sig-
nal is displayed.
COOLAN TEMP/S
[°C] or [°F]
q q
●
The engine coolant temperature (deter-
mined by the signal voltage of the
engine coolant temperature sensor) is
displayed.
●
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]
q q
●
The vehicle speed computed from the
vehicle speed sensor signal or ABS
actuator and electric unit (control unit)
signal is displayed.
FUEL TEMP SEN
[°C] or [°F]
q q
●
The fuel temperature (determined by
the signal voltage of the fuel tempera-
ture sensor) is displayed.
ACCEL POS SEN
[V]
q q
●
The accelerator position sensor signal
voltage is displayed.
OFF ACCEL POS
[ON/OFF]
q q
●
Indicates [ON/OFF] condition from the
accelerator position switch signal.
C/SLEEV POS/S [V]
q q
●
The control sleeve position sensor sig-
nal voltage is displayed.
BATTERY VOLT [V]
q q
●
The power supply voltage of ECM is
displayed.
START SIGNAL
[ON/OFF]
q q
●
Indicates [ON/OFF] condition from the
starter signal.
●
After starting the engine, [OFF] is dis-
played regardless of the starter signal.
AIR COND SIG
[ON/OFF]
q q
●
Indicates [ON/OFF] condition of the air
conditioner switch as determined by
the air conditioner signal.
BRAKE SW
[ON/OFF]
q
●
Indicates [ON/OFF] condition of the
stio lamp switch.
BRAKE SW2
[ON/OFF]
q
●
Indicates [ON/OFF] condition of the
stio lamp switch 2.
IGN SW
[ON/OFF]
q q
●
Indicates [ON/OFF] condition from igni-
tion switch.
MAS AIR/FL SE [V]
q q
●
The signal voltage of the mass air flow
sensor is displayed.
●
When the engine is stopped, a certain
value is indicated.
ACT INJ TIMG [°]
q
●
The actual injection timing angle deter-
mined by the ECM (an approximate
average angle between injection start
and end from TDC) is displayed.
TARGET F/INJ
[mm
3
/STROKE]
q
●
The target fuel injection quantity
(determined by the ECM according to
the input signal) is indicated.
NOTE:
Any monitored item that does not match the vehicle being diagnosed is deleted from the display automatically.
ON BOARD DIAGNOSTIC SYSTEM DESCRIPTION
CD20T
CONSULT-II (Cont’d)
EC-29
Monitored item
[Unit]
ECM
input
signals
Main
signals
Description
Remarks
FUEL CUT S/V
[ON/OFF]
●
The control condition of the fuel cut
solenoid valve (determined by ECM
according to the input signal) is indi-
cated.
●
OFF ... Fuel cut solenoid valve is not
operating.
ON ... Fuel cut solenoid valve is oper-
ating.
●
When the fuel cut solenoid valve is not
operating, fuel supply is shut off.
AIR COND RLY
[ON/OFF]
q
●
The air conditioner relay control condi-
tion (determined by ECM according to
the input signal) is indicated.
GLOW RLY
[ON/OFF]
q
●
The glow relay control condition (deter-
mined by ECM according to the input
signal) is displayed.
COOLING FAN
[LOW/HI/OFF]
q
●
Indicates the control condition of the
cooling fans (determined by ECM
according to the input signal).
●
LOW ... Operates at low speed.
HI ... Operates at high speed.
OFF ... Stopped.
EGRC SOL/V A
[ON/OFF]
●
The control condition of the EGRC-
solenoid valve (determined by ECM
according to the input signal) is indi-
cated.
●
OFF ... EGRC-solenoid valve is not
operating.
ON ... EGRC-solenoid valve is oper-
ating.
ON BOARD DIAGNOSTIC SYSTEM DESCRIPTION
CD20T
CONSULT-II (Cont’d)
EC-30
ACTIVE TEST MODE
TEST ITEM
CONDITION
JUDGEMENT
CHECK ITEM (REMEDY)
TARGET F/INJ
●
Engine: Return to the original
trouble condition
●
Fix the target injection quantity
using CONSULT-II.
If trouble symptom disappears, see
CHECK ITEM.
●
Control sleeve position sensor
COOLING FAN
●
Ignition switch: ON
●
Operate the cooling fan at “LOW”,
“HI” speed and turn “OFF” using
CONSULT-II.
Cooling fan moves at “LOW”, “HI”
speed and stops.
●
Harness and connector
●
Cooling fan motor
FUEL CUT SOL/V
●
Ignition switch: ON
●
Turn solenoid valve “ON” and
“OFF” with the CONSULT-II and
listen to operating sound.
Solenoid valve makes an operating
sound.
●
Harness and connector
●
Solenoid valve
EGRC SOL/V A
●
Ignition switch: ON
●
Turn solenoid valve “ON” and
“OFF” with the CONSULT-II and
listen to operating sound.
Solenoid valve makes an operating
sound.
●
Harness and connector
●
Solenoid valve
GLOW RLY
●
Ignition switch: ON (Engine
stopped)
●
Turn the glow relay “ON” and
“OFF” using CONSULT-II and listen
to operating sound.
Glow relay makes the operating
sound.
●
Harness and connector
●
Fuel pump relay
INJ TIMING
●
Engine: Return to the original
trouble condition
●
Retard the injection timing using
CONSULT-II.
If trouble symptom disappears, see
CHECK ITEM.
●
Adjust initial injection timing
ON BOARD DIAGNOSTIC SYSTEM DESCRIPTION
CD20T
CONSULT-II (Cont’d)
EC-31
REAL TIME DIAGNOSIS IN DATA MONITOR MODE
CONSULT-II has two kinds of triggers and they can be selected by touching “SETTING” in “DATA MONI-
TOR” mode.
1. “AUTO TRIG” (Automatic trigger):
●
The malfunction will be identified on the CONSULT-II screen in real time.
In other words, DTC and malfunction item will be displayed at the moment the malfunction is detected
by ECM.
DATA MONITOR can be performed continuously until a malfunction is detected. However, DATA
MONITOR cannot continue any longer after the malfunction detection.
2. “MANU TRIG” (Instruction trigger):
●
Malfunction item will not be displayed automatically on CONSULT-II screen even though a malfunc-
tion is detected by ECM.
DATA MONITOR can be performed continuously even though a malfunction is detected.
Use these triggers as follows:
1. “AUTO TRIG”
●
While trying to detect the malfunction item by performing the “DIAGNOSTIC TROUBLE CONFIR-
MATION PROCEDURE”, be sure to select to “DATA MONITOR (AUTO TRIG)” mode. You can con-
firm the malfunction at the moment it is detected.
●
While narrowing down the possible causes, CONSULT-II should be set in “DATA MONITOR (AUTO
TRIG)” mode, especially in case the incident is intermittent.
Inspect the circuit by gently shaking (or twisting) suspicious connectors, components and harness in
the “DIAGNOSTIC TROUBLE CONFIRMATION PROCEDURE”. The moment a malfunction is found
the malfunction item will be displayed. (Refer to GI section, “Incident Simulation Tests” in “HOW TO
PERFORM EFFICIENT DIAGNOSIS FOR AN ELECTRICAL INCIDENT”.)
2. “MANU TRIG”
●
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.
PEF529Q
“SETTING”
“AUTO TRIG”
A malfunction can be
displayed on “DATA
MONITOR” screen
automatically if detected.
“MANU TRIG”
A malfunction can not be
displayed on “DATA
MONITOR” screen
automatically even if
detected.
ON BOARD DIAGNOSTIC SYSTEM DESCRIPTION
CD20T
CONSULT-II (Cont’d)
EC-32
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