Nissan Note E12. Manual — part 180
DIAGNOSIS SYSTEM (ECM)
EC-59
< SYSTEM DESCRIPTION >
[HR16DE]
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NOTE:
Any monitored item that does not match the vehicle being diagnosed is deleted from the display automatically.
WORK SUPPORT MODE
Work Item
LO SPEED CUT
NON/CUT
Indicates the vehicle cruise
condition.
NON: Vehicle speed is main-
tained at the ASCD set speed.
CUT: Vehicle speed de-
creased to excessively low,
and ASCD operation is cut off.
AT OD MONITOR
ON/OFF
Indicates [On/Off] condition of
CVT O/D according to the in-
put signal from the TCM.
AT OD CANCEL
ON/OFF
Indicates [On/Off] condition of
CVT O/D cancel request sig-
nal.
CRUISE LAMP
ON/OFF
Indicates [ON/OFF] condition
of CRUISE lamp determined
by the ECM according to the
input signals.
SET LAMP
ON/OFF
Indicates [ON/OFF] condition
of SET lamp determined by
the ECM according to the in-
put signals.
KICKDOWN POS
ON/OFF
Indicates [ON/OFF] condition
of kickdown determined by
the ECM according to the in-
put signals.
CLUTCH P/P SW
ON/OFF
Indicates [ON/OFF] condition
clutch pedal position switch
signals.
Models other than M/T mod-
els always display OFF.
VTC DTY EX B1
%
• The control value of the ex-
haust valve timing control
solenoid valve (determined
by ECM according to the in-
put signals) is indicated.
• The advance angle be-
comes larger as the value
increases.
THRTL STK CNT B1
—
Not used.
EOP SENSOR
mV
The signal voltage of EOP
sensor is displayed.
HO2 S2 DIAG2(B1)
INCMP/CMPLT
NOTE:
The item is indicated, but not
used.
A/F SEN1 DIAG2(B1)
INCMP/CMPLT
NOTE:
The item is indicated, but not
used.
Monitored item
Unit
Monitor Item Selection
Description
Remarks
MAIN
SIGNALS
ECU INPUT
SIGNALS
EC-60
< SYSTEM DESCRIPTION >
[HR16DE]
DIAGNOSIS SYSTEM (ECM)
*: This function is not necessary in the usual service procedure.
ACTIVE TEST MODE
Test Item
*: Leaving cooling fan OFF with CONSULT while engine is running may cause the engine to overheat.
DTC WORK SUPPORT MODE
WORK ITEM
CONDITION
USAGE
FUEL PRESSURE RELEASE
Fuel pump will stop by touching “START” during idling.
Crank a few times after engine stalls.
When releasing fuel pressure from fuel line
IDLE AIR VOL LEARN
The idle air volume that keeps the engine within the
specified range is memorized in ECM.
When learning the idle air volume
SELF-LEARNING CONT
The coefficient of self-learning control mixture ratio re-
turns to the original coefficient.
When clearing mixture ratio self-learning
value
TARGET IDLE RPM ADJ*
Idle condition
When setting target idle speed
TARGET IGN TIM ADJ*
Idle condition
When adjusting target ignition timing
CLSD THL POS LEARN
Ignition on and engine stopped.
When learning throttle valve closed position
TEST ITEM
CONDITION
JUDGMENT
CHECK ITEM (REMEDY)
ENG COOLANT
TEMP
• Engine: Return to the original trouble con-
dition
• Change the engine coolant temperature
using CONSULT.
If trouble symptom disap-
pears, see CHECK ITEM.
• Harness and connectors
• Engine coolant temperature
sensor
• Fuel injector
FUEL INJECTION
• Engine: Return to the original trouble con-
dition
• Change the amount of fuel injection using
CONSULT.
If trouble symptom disap-
pears, see CHECK ITEM.
• Harness and connectors
• Fuel injector
• Air fuel ratio (A/F) sensor 1
PURG VOL CONT/V
• Engine: After warming up, run engine at
1,500 rpm.
• Change the EVAP canister purge volume
control solenoid valve opening percent us-
ing CONSULT.
Engine speed changes ac-
cording to the opening per-
cent.
• Harness and connectors
• Solenoid valve
FUEL PUMP RELAY
• Ignition switch: ON (Engine stopped)
• Turn the fuel pump relay “ON” and “OFF”
using CONSULT and listen to operating
sound.
Fuel pump relay makes the
operating sound.
• Harness and connectors
• Fuel pump relay
COOLING FAN*
• Ignition switch: ON
• Turn the cooling fan “LOW”, “HI” and “OFF”
CONSULT.
Cooling fan moves and stops.
• Harness and connectors
• IPDM E/R (Cooling fan relay)
• Cooling fan motor
IGNITION TIMING
• Engine: Return to the original trouble con-
dition
• Timing light: Set
• Retard the ignition timing using CONSULT.
If trouble symptom disap-
pears, see CHECK ITEM.
Perform Idle Air Volume Learn-
ing.
POWER BALANCE
• Engine: After warming up, idle the engine.
• A/C switch OFF
• Shift lever: Neutral
• Cut off each fuel injector signal one at a
time using CONSULT.
Engine runs rough or dies.
• Harness and connectors
• Compression
• Fuel injector
• Power transistor
• Spark plug
• Ignition coil
INT V/T ASSIGN
ANGLE
• Engine: Return to the original non-stan-
dard condition
• Change intake valve timing using CON-
SULT.
If malfunctioning symptom
disappears, see CHECK
ITEM.
• Harness and connectors
• Intake valve timing control so-
lenoid valve
EXH V/T ASSIGN
ANGLE
• Engine: Return to the original non-stan-
dard condition
• Change exhaust valve timing using CON-
SULT.
If malfunctioning symptom
disappears, see CHECK
ITEM.
• Harness and connectors
• Exhaust valve timing control
solenoid valve
DIAGNOSIS SYSTEM (ECM)
EC-61
< SYSTEM DESCRIPTION >
[HR16DE]
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Test Item
SRT & P-DTC MODE
SRT STATUS Mode
For items whose SRT codes are set, “CMPLT” is displayed on the CONSULT screen; for items whose SRT
codes are not set, “INCMP” is displayed.
SRT WORK SUPPORT Mode
This mode enables a technician to drive a vehicle to set the SRT while monitoring the SRT status.
Test mode
Test item
Corresponding DTC No.
Reference page
HO2S2
HO2S2 (B1) P1146
P0138
HO2S2 (B1) P1147
P0137
HO2S2 (B1) P0139
P0139
A/F SEN1
A/F SEN1 (B1) P1278/P1279
P0133
A/F SEN1 (B1) P1276
P0130
EC-62
< ECU DIAGNOSIS INFORMATION >
[HR16DE]
ECM
ECU DIAGNOSIS INFORMATION
ECM
Reference Value
INFOID:0000000009022472
VALUES ON THE DIAGNOSIS TOOL
NOTE:
• The following table includes information (items) inapplicable to this vehicle. For information (items) applica-
ble to this vehicle, refer to CONSULT display items.
• Numerical values in the following table are reference values.
• These values are input/output values that ECM receives/transmits and may differ from actual operations.
Example: The ignition timing shown by the timing light may differ from the ignition timing displayed on the
data monitor.
This occurs because the timing light shows a value calculated by ECM according to signals received from
the camshaft position sensor and other sensors related to ignition timing.
• For outlines of following items, refer to
.
Monitor Item
Condition
Values/Status
ENG SPEED
• Run engine and compare CONSULT value with the tachometer indication.
Almost the same speed as
the tachometer indication.
MAS A/F SE-B1
See
.
B/FUEL SCHDL
See
.
A/F ALPHA-B1
See
.
COOLAN TEMP/S
• Engine: After warming up
More than 70
°C (158F)
A/F SEN1 (B1)
• Engine: After warming up
Maintaining engine speed at 2,000 rpm
Fluctuates around 2.2 V
HO2S2 (B1)
• Revving engine from idle up to 3,000 rpm quickly after the following conditions
are met.
- Engine: After warming up
- After keeping engine speed between 3,500 and 4,000 rpm for 1 minute and at
idle for 1 minute under no load
0 - 0.3 V
←→ Approx. 0.6 -
1.0 V
HO2S2 MNTR (B1)
LEAN
←→ RICH
VHCL SPEED SE
• Turn drive wheels and compare CONSULT value with the speedometer indi-
cation.
Almost the same speed as
speedometer indication
BATTERY VOLT
• Ignition switch: ON (Engine stopped)
11 - 14 V
ACCEL SEN 1
• Ignition switch: ON
(Engine stopped)
Accelerator pedal: Fully released
0.6 - 0.9 V
Accelerator pedal: Fully depressed
4.0 - 4.8 V
ACCEL SEN 2
• Ignition switch: ON
(Engine stopped)
Accelerator pedal: Fully released
0.6 - 0.9 V
Accelerator pedal: Fully depressed
3.9 - 4.8 V
TP SEN 1-B1
• Ignition switch: ON
(Engine stopped)
• Shift lever: 1st
Accelerator pedal: Fully released
More than 0.36 V
Accelerator pedal: Fully depressed
Less than 4.75 V
TP SEN 2-B1
• Ignition switch: ON
(Engine stopped)
• Shift lever:1st
Accelerator pedal: Fully released
More than 0.36 V
Accelerator pedal: Fully depressed
Less than 4.75 V
START SIGNAL
• Ignition switch: ON
→ START → ON
OFF
→ ON → OFF
CLSD THL POS
• Ignition switch: ON
(Engine stopped)
Accelerator pedal: Fully released
ON
Accelerator pedal: Slightly depressed
OFF
AIR COND SIG
• Engine: After warming up, idle
the engine
Air conditioner switch: OFF
OFF
Air conditioner switch: ON
(Compressor operates.)
ON
PW/ST SIGNAL
• Engine: After warming up, idle
the engine
Steering wheel: Not being turned
OFF
Steering wheel: Being turned
ON
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