Nissan March K13. Manual — part 225
ECM
EC-361
< ECU DIAGNOSIS INFORMATION >
[HR12DE (TYPE 2)]
C
D
E
F
G
H
I
J
K
L
M
A
EC
N
P
O
30
(P)
28
(B)
Manifold absolute pressure
(MAP) sensor
Output
[Engine is running]
• Warm-up condition
• Both A/C switch and blower fan
switch: ON (Compressor operates)
4.5 V
Output voltage varies with atmo-
spheric pressure.
[Engine is running]
• Warm-up condition
• Idle speed
1.5 V
[Engine is running]
• Warm-up condition
• Engine speed: 2,000 rpm
1.2 V
31
(P)
28
(B)
Intake air temperature sen-
sor
Input
[Engine is running]
0 - 4.8 V
Output voltage varies with intake
air temperature.
33
(SB)
35
(P)
Heated oxygen sensor 1
—
[Engine is running]
• Warm-up condition
• Engine speed: 2,000 rpm
0 - 1.0 V
(Periodically change)
34
(W)
36
(B)
Heated oxygen sensor 2
Input
[Engine is running]
• Revving engine from idle to 3,000
rpm quickly after the following condi-
tions 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
0 - 1.0 V
35
(P)
—
Sensor ground
(Heated oxygen sensor 1)
—
—
—
36
(B)
—
Sensor ground
(Heated oxygen sensor 2)
—
—
—
37
(W)
39
(R)
Crankshaft position sensor
(POS)
Input
[Engine is running]
• Warm-up condition
• Idle speed
NOTE:
The pulse cycle changes depending
on rpm at idle
4.0 V
[Engine is running]
• Engine speed: 2,000 rpm
4.0 V
38
(W)
27
(BR)
Sensor power supply
(Refrigerant pressure sen-
sor)
—
[Ignition switch: ON]
5 V
39
(R)
—
Sensor ground
[Crankshaft position sensor
(POS)]
—
—
—
40
(BR)
—
Sensor ground
[Camshaft position sensor
(PHASE)]
—
—
—
Terminal No.
Description
Condition
Value
(Approx.)
+
–
Signal name
Input/
Output
JSBIA0395GB
JSBIA0396GB
EC-362
< ECU DIAGNOSIS INFORMATION >
[HR12DE (TYPE 2)]
ECM
41
(G)
40
(BR)
Camshaft position sensor
(PHASE)
Input
[Engine is running]
• Warm-up condition
• Idle speed
NOTE:
The pulse cycle changes depending
on rpm at idle
0.8 V
[Engine is running]
• Engine speed is 2,000 rpm
0.8 V
42
(BR)
39
(R)
Sensor power supply
[Crankshaft position sensor
(POS)]
—
[Ignition switch: ON]
5 V
43
(O)
40
(BR)
Sensor power supply
[Camshaft position sensor
(PHASE)]
—
[Ignition switch: ON]
5 V
44
(V)
20
(Y)
Sensor power supply
(Throttle position sensor)
—
[Ignition switch: ON]
5 V
45
(W)
80
(B)
Park/Neutral position signal
Input
[Ignition switch: ON]
• Shift lever: Neutral position
BATTERY VOLTAGE
(11 - 14 V)
[Ignition switch: ON]
• Shift lever: Except above position
0 V
46
(V)
28
(Y)
Sensor power supply
[Manifold absolute pressure
(MAP) sensor]
—
[Ignition switch: ON]
5 V
49
(V)
80
(Y)
Power supply for ECM
(Back-up)
Input
[Ignition switch: OFF]
BATTERY VOLTAGE
(11 - 14 V)
51
(P)
—
CAN communication line
Input/
Output
—
—
52
(L)
—
CAN communication line
Input/
Output
—
—
56
(SB)
—
Data link connector
Input/
Output
—
—
61
(O)
80
(B)
Ignition switch
Input
[Ignition switch: OFF]
0 V
[Ignition switch: ON]
BATTERY VOLTAGE
(11 - 14 V)
67
(R)
80
(B)
Stop lamp switch
Input
[Ignition switch: OFF]
• Brake pedal: Fully released
0 V
[Ignition switch: OFF]
• Brake pedal: Slightly depressed
BATTERY VOLTAGE
(11 - 14 V)
70
(BR)
72
(R)
Sensor power supply
(Accelerator pedal position
sensor 2)
—
[Ignition switch: ON]
5 V
Terminal No.
Description
Condition
Value
(Approx.)
+
–
Signal name
Input/
Output
JSBIA0397GB
JSBIA0398GB
ECM
EC-363
< ECU DIAGNOSIS INFORMATION >
[HR12DE (TYPE 2)]
C
D
E
F
G
H
I
J
K
L
M
A
EC
N
P
O
: Average voltage for pulse signal (Actual pulse signal can be confirmed by oscilloscope.)
Fail Safe
INFOID:0000000005888309
NON DTC RELATED ITEM
DTC RELATED ITEM
71
(W)
72
(R)
Accelerator pedal position
sensor 2
Input
[Ignition switch: ON]
• Engine stopped
• Accelerator pedal: Fully released
0.3 - 0.6 V
[Ignition switch: ON]
• Engine stopped
• Accelerator pedal: Fully depressed
1.95 - 2.4 V
72
(R)
—
Sensor ground
(Accelerator pedal position
sensor 2)
—
—
—
73
(G)
80
(B)
Power supply for ECM
Input
[Ignition switch: ON]
BATTERY VOLTAGE
(11 - 14 V)
74
(V)
79
(GR)
Sensor power supply
(Accelerator pedal position
sensor 1)
—
[Ignition switch: ON]
5 V
75
(B)
—
ECM ground
—
—
—
78
(SB)
79
(GR)
Accelerator pedal position
sensor 1
Input
[Ignition switch: ON]
• Engine stopped
• Accelerator pedal: Fully released
0.6 - 0.9 V
[Ignition switch: ON]
• Engine stopped
• Accelerator pedal: Fully depressed
3.9 - 4.7 V
79
(GR)
—
Sensor ground
(Accelerator pedal position
sensor 1)
—
—
—
80
(B)
—
ECM ground
—
—
—
Terminal No.
Description
Condition
Value
(Approx.)
+
–
Signal name
Input/
Output
Detected
items
Engine operating condition
in fail-safe mode
Remarks
Reference page
Malfunction
indicator
circuit
Engine speed will not rise
more than 2,500 rpm due
to the fuel cut
When there is an open circuit on MIL circuit, the ECM cannot warn the
driver by lighting up MIL when there is malfunction on engine control
system.
Therefore, when electrical controlled throttle and part of ECM related
diagnoses are continuously detected as NG for 5 trips, ECM warns the
driver that engine control system malfunctions and MIL circuit is open
by means of operating fail safe function.
The fail safe function also operates when above diagnoses except MIL
circuit are detected and demands the driver to repair the malfunction.
DTC No.
Detected items
Engine operating condition in fail safe mode
P0107
P0108
Manifold absolute pressure
(MAP) sensor
Engine speed will not rise more than 2,500 rpm due to the fuel cut.
EC-364
< ECU DIAGNOSIS INFORMATION >
[HR12DE (TYPE 2)]
ECM
P0117
P0118
Engine coolant tempera-
ture sensor circuit
Engine coolant temperature will be determined by ECM based on the following conditions.
CONSULT-III displays the engine coolant temperature decided by ECM.
Condition
Engine coolant temperature decided
(CONSULT-III display)
Just as ignition switch is turned ON
or START
40
°
C (104
°
F)
Approx. 4 minutes or more after
engine starting
80
°
C (176
°
F)
Except as shown above
40 - 80
°
C (104 - 176
°
F)
(Depends on the time)
When the fail safe system for engine coolant temperature sensor is activated, the cooling
fan operates while engine is running.
P0122
P0123
P0222
P0223
P2135
Throttle position sensor
The ECM controls the electric throttle control actuator in regulating the throttle opening in
order for the idle position to be within +10 degrees.
The ECM regulates the opening speed of the throttle valve to be slower than the normal
condition.
So, the acceleration will be poor.
P0605
ECM
(When ECM calculation function is malfunctioning:)
ECM stops the electric throttle control actuator control, throttle valve is maintained at a
fixed opening (approx. 5 degrees) by the return spring.
P1121
Electric throttle control ac-
tuator
(When electric throttle control actuator does not function properly due to the return spring
malfunction:)
ECM controls the electric throttle actuator by regulating the throttle opening around the
idle position. The engine speed will not rise more than 2,000 rpm.
(When throttle valve opening angle in fail safe mode is not in specified range:)
ECM controls the electric throttle control actuator by regulating the throttle opening to 20
degrees or less.
(When ECM detects the throttle valve is stuck open:)
While the vehicle is driving, it slows down gradually by fuel cut. After the vehicle stops, the
engine stalls.
The engine can restart in the Neutral position, and engine speed will not exceed 1,000 rpm
or more.
P1122
Electric throttle control
function
ECM stops the electric throttle control actuator control, throttle valve is maintained at a
fixed opening (approx. 5 degrees) by the return spring.
P1124
P1126
Throttle control motor relay
ECM stops the electric throttle control actuator control, throttle valve is maintained at a
fixed opening (approx. 5 degrees) by the return spring.
P1128
Throttle control motor
ECM stops the electric throttle control actuator control, throttle valve is maintained at a
fixed opening (approx. 5 degrees) by the return spring.
P1171
Intake air
When accelerator pedal is depressed, engine speed will not rise more than 2,500 rpm due
to fuel cut.
P1229
Sensor power supply
ECM stops the electric throttle control actuator control, throttle valve is maintained at a
fixed opening (approx. 5 degrees) by the return spring.
P1805
Brake switch
ECM controls the electric throttle control actuator by regulating the throttle opening to a
small range.
Therefore, acceleration will be poor.
Vehicle condition
Driving condition
When engine is idling
Normal
When accelerating
Poor acceleration
P2122
P2123
P2127
P2128
P2138
Accelerator pedal position
sensor
The ECM controls the electric throttle control actuator in regulating the throttle opening in
order for the idle position to be within +10 degrees.
The ECM regulates the opening speed of the throttle valve to be slower than the normal
condition.
So, the acceleration will be poor.
DTC No.
Detected items
Engine operating condition in fail safe mode
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