Nissan March K13. Manual — part 223
DIAGNOSIS SYSTEM (ECM)
EC-353
< SYSTEM DESCRIPTION >
[HR12DE (TYPE 2)]
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NOTE:
Any monitored item that does not match the vehicle being diagnosed is deleted from the display automatically.
BRAKE SW
ON/OFF
• Indicates [ON/OFF] condition from the stop lamp
switch signal.
INJ PULSE-B1
msec
• Indicates the actual fuel injection pulse width
compensated by ECM according to the input sig-
nals.
• When the engine is stopped, a certain
computed value is indicated.
IGN TIMING
BTDC
• Indicates the ignition timing computed by ECM
according to the input signals.
• When the engine is stopped, a certain
value is indicated.
PURG VOL C/V
%
• Indicates the EVAP canister purge volume con-
trol solenoid valve control value computed by the
ECM according to the input signals.
• The opening becomes larger as the value in-
creases.
AIR COND RLY
ON/OFF
• The air conditioner relay control condition (deter-
mined by ECM according to the input signals) is
indicated.
FUEL PUMP RLY
ON/OFF
• Indicates the fuel pump relay control condition
determined by ECM according to the input sig-
nals.
THRTL RELAY
ON/OFF
• Indicates the throttle control motor relay control
condition determined by the ECM according to
the input signals.
COOLING FAN
HI/LOW/OFF
• Indicates the condition of the cooling fan (deter-
mined by ECM according to the input signals).
HI: High speed operation
LOW: Low speed operation
OFF: Stop
HO2S1 HTR (B1)
ON/OFF
• Indicates [ON/OFF] condition of heated oxygen
sensor 1 heater determined by ECM according to
the input signals.
HO2S2 HTR (B1)
ON/OFF
• Indicates [ON/OFF] condition of heated oxygen
sensor 2 heater determined by ECM according to
the input signals.
VEHICLE SPEED
km/h or mph
• The vehicle speed computed from the vehicle
speed signal sent from TCM is displayed.
IDL A/V LEARN
YET/CMPLT
• Displays the condition of Idle Air Volume Learn-
ing
YET: Idle air volume learning has not been per-
formed yet.
CMPLT: Idle air volume learning has already
been performed successfully.
P/N POSI SW
ON/OFF
• Indicates [ON/OFF] condition from the park/neu-
tral position (PNP) switch signal.
INT/A TEMP SE
°
C or
°
F
• The intake air temperature (determined by the
signal voltage of the intake air temperature sen-
sor) is indicated.
TRVL AFTER MIL
km or mile
• Distance traveled while MIL is activated.
AC PRESS SEN
V
• The signal voltage from the refrigerant pressure
sensor is displayed.
TURBO BST SEN
V
• The signal voltage of the manifold absolute pres-
sure sensor is displayed.
O2SEN HTR DTY
%
• Heated oxygen sensor 1 heater control value
computed by ECM according to the input signals.
• The current flow to the heater becomes larger as
the value increases.
Monitored item
Unit
Description
Remarks
EC-354
< SYSTEM DESCRIPTION >
[HR12DE (TYPE 2)]
DIAGNOSIS SYSTEM (ECM)
ACTIVE TEST MODE
Test Item
*: Leaving cooling fan OFF with CONSULT-III while engine is running may cause the engine to overheat.
WORK SUPPORT MODE
Work Item
*: This function is not necessary in the usual service procedure.
TEST ITEM
CONDITION
JUDGMENT
CHECK ITEM (REMEDY)
ENG COOLANT
TEMP
• Engine: Return to the original
trouble condition
• Change the engine coolant tem-
perature using CONSULT-III.
If trouble symptom disappears, see
CHECK ITEM.
• Harness and connectors
• Engine coolant temperature
sensor
• Fuel injector
FUEL INJECTION
• Engine: Return to the original
trouble condition
• Change the amount of fuel injec-
tion using CONSULT-III.
If trouble symptom disappears, see
CHECK ITEM.
• Harness and connectors
• Fuel injector
• Heated oxygen sensor 1
PURG VOL CONT/V
• Engine: After warming up, run en-
gine at 1,500 rpm.
• Change the EVAP canister purge
volume control solenoid valve
opening percent using CON-
SULT-III.
Engine speed changes according
to the opening percent.
• Harness and connectors
• Solenoid valve
FUEL PUMP RELAY
• Ignition switch: ON (Engine
stopped)
• Turn the fuel pump relay “ON”
and “OFF” using CONSULT-III
and listen to operating sound.
Fuel pump relay makes the operat-
ing sound.
• Harness and connectors
• Fuel pump relay
IGNITION TIMING
• Engine: Return to the original
trouble condition
• Timing light: Set
• Retard the ignition timing using
CONSULT-III.
If trouble symptom disappears, see
CHECK ITEM.
• Perform Idle Air Volume Learn-
ing.
COOLING FAN*
• Ignition switch: ON
• Turn the cooling fan “LOW”, “HI”
and “OFF” CONSULT-III.
Cooling fan moves and stops.
• Harness and connectors
• IPDM E/R (Cooling fan relay)
• Cooling fan motor
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-III.
Engine runs rough or dies.
• Harness and connectors
• Compression
• Fuel injector
• Power transistor
• Spark plug
• Ignition coil
WORK ITEM
CONDITION
USAGE
FUEL PRESSURE RELEASE
• FUEL PUMP WILL STOP BY TOUCHING “START” DUR-
ING 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 RETURNS TO THE ORIGINAL COEF-
FICIENT.
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 tim-
ing
ECM
EC-355
< ECU DIAGNOSIS INFORMATION >
[HR12DE (TYPE 2)]
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ECU DIAGNOSIS INFORMATION
ECM
Reference Value
INFOID:0000000005888308
VALUES ON THE DIAGNOSIS TOOL
Remarks:
• Specification data are reference values.
• Specification data are output/input values which are detected or supplied by the ECM at the connector.
*Specification data may not be directly related to their components signals/values/operations.
I.e. Adjust ignition timing with a timing light before monitoring IGN TIMING, because the monitor may show the
specification data in spite of the ignition timing not being adjusted to the specification data. this IGN TIMING
monitors the data calculated by the ECM according to the signals input from the camshaft position sensor and
other ignition timing related sensors.
Monitor Item
Condition
Values/Status
ENG SPEED
• Run engine and compare CONSULT-III value with the tachometer indication.
Almost the same speed as
the tachometer indication.
B/FUEL SCHDL
See
A/F ALPHA-B1
See
COOLAN TEMP/S
• Engine: After warming up
More than 70
°
C (158F)
HO2S1 (B1)
• Engine: After warming up
Maintaining engine speed at 2,000 rpm
0 - 0.3 V
←→
Approx. 0.6 -
1.0 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
HO2S1 MNTR (B1)
• Engine: After warming up
Maintaining engine speed at 2,000 rpm
LEAN
←→
RICH
Changes more than 5 times
during 10 seconds
HO2S2 MNTR (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
LEAN
←→
RICH
VHCL SPEED SE
• Turn drive wheels and compare CONSULT-III value with the speedometer in-
dication.
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
EC-356
< ECU DIAGNOSIS INFORMATION >
[HR12DE (TYPE 2)]
ECM
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
LOAD SIGNAL
• Ignition switch: ON
Rear window defogger switch: ON
and/or Lighting switch: 2nd position
On
Rear window defogger switch and lighting
switch: OFF
Off
IGNITION SW
• Ignition switch: ON
→
OFF
→
ON
On
→
Off
→
On
HEATER FAN SW
• Engine: After warming up, idle
the engine
Heater fan switch: ON
On
Heater fan switch: OFF
Off
BRAKE SW
• Ignition switch: ON
Brake pedal: Fully released
Off
Brake pedal: Slightly depressed
On
INJ PULSE-B1
• Engine: After warming up
• Shift lever: Neutral
• Air conditioner switch: OFF
• No load
Idle
2.0 - 3.0 msec
2,000 rpm
1.9 - 2.9 msec
IGN TIMING
• Engine: After warming up
• Shift lever: Neutral
• Air conditioner switch: OFF
• No load
Idle
1
°
- 11
°
BTDC
2,000 rpm
25
°
- 45
°
BTDC
PURG VOL C/V
• Engine: After warming up
• Shift lever: Neutral
• Air conditioner switch: OFF
• No load
Idle
0%
2,000 rpm
0% - 50%
AIR COND RLY
• Engine: After warming up, idle
the engine
Air conditioner switch: OFF
Off
Air conditioner switch: ON
(Compressor operates)
On
FUEL PUMP RLY
• For 1 seconds after turning ignition switch: ON
• Engine running or cranking
On
• Except above
Off
THRTL RELAY
• Ignition switch: ON
On
COOLING FAN
• Engine: After warning up, idle the
engine
• Air conditioner switch: OFF
Engine coolant temperature is 95
°
C
(203
°
F) or less
Off
Engine coolant temperature is between
95
°
C (203
°
F) and 99
°
C (210
°
F)
LOW
Engine coolant temperature is 100
°
C
(212
°
F) or more
HIGH
HO2S1 HTR (B1)
• Engine: After warming up
• Engine speed: Below 3,600 rpm
On
• Engine speed: Above 3,600 rpm
Off
HO2S2 HTR (B1)
• Engine speed: Below 3,900 rpm after the following conditions are met.
- Engine: After warming up
- Keeping the engine speed between 3,500 and 4,000 rpm for 1 minute and at
idle for 1 minute under no load
On
VEHICLE SPEED
• Turn drive wheels and compare CONSULT-III value with the speedometer in-
dication.
Almost the same speed as
speedometer indication
IDL A/V LEARN
• Engine: running
Idle air volume learning has not been per-
formed yet.
YET
Idle air volume learning has already been
performed successfully.
CMPLT
Monitor Item
Condition
Values/Status
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