Nissan Versa Note. Instruction - part 275

EC-82

< ECU DIAGNOSIS INFORMATION >

[HR16DE]

ECM

: Average voltage for pulse signal (Actual pulse signal can be confirmed by oscilloscope.)

*: Before measuring the terminal voltage, confirm that the battery is fully charged. Refer to 

PG-61, "Work

Flow"

.

Fail Safe

INFOID:0000000009020643

NON DTC RELATED ITEM

100

(G)

108

(B)

Brake pedal position switch

Input

[Ignition switch: OFF]
• Brake pedal: Fully released

BATTERY VOLTAGE
(11 - 14 V)

[Ignition switch: OFF]
• Brake pedal: Slightly depressed

0 V

101
(W)

98

(LG)

Sensor power supply
(Refrigerant pressure sen-
sor)

—

[Ignition switch: ON]

5 V

102

(BR)

104

(Y)

Sensor power supply
(Accelerator pedal position 
sensor 2)

—

[Ignition switch: ON]

5 V

103

(GR)

104

(Y)

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 de-

pressed

1.95 - 2.4 V

104

(Y)

—

Sensor ground
(Accelerator pedal position 
sensor 2)

—

—

—

105

(G)

108

(B)

Power supply for ECM

Input

[Ignition switch: ON]

BATTERY VOLTAGE
(11 - 14 V)

106

(V)

111

(P)

Sensor power supply
(Accelerator pedal position 
sensor 1)

—

[Ignition switch: ON]

5 V

108

(B)

—

ECM ground

—

—

—

110

(SB)

111

(P)

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 de-

pressed

 3.9 - 4.7 V

111

(P)

—

Sensor ground
(Accelerator pedal position 
sensor 1)

—

—

—

Terminal No.

Description

Condition

Value

(Approx.)

+

–

Signal name

Input/

Output

ECM

EC-83

< ECU DIAGNOSIS INFORMATION >

[HR16DE]

C

D

E

F

G

H

I

J

K

L

M

A

EC

N

P

O

DTC RELATED ITEM

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.

EC-444, "Compo-

nent Function 

Check"

DTC No.

Detected items

Engine operating condition in fail safe mode

U0101

CAN communication line

ECM operates active grille shutter to fully-open position.

U0284

Active grille shutter

ECM operates active grille shutter to fully-open position.

U1040

Engine communication line

ECM operates active grille shutter to fully-open position.

P0011

Intake valve timing control

The signal is not energized to the intake valve timing control solenoid valve and the valve 
control does not function.

P0014

Exhaust valve timing control

The signal is not energized to the exhaust valve timing control solenoid valve and the valve 
control does not function.

P0101
P0102
P0103

Mass air flow sensor circuit

Engine speed will not rise more than 2,400 rpm due to the fuel cut.

P0117
P0118

Engine coolant temperature 
sensor circuit

Engine coolant temperature will be determined by ECM based on the following conditions.
CONSULT displays the engine coolant temperature decided by ECM.

Condition

Engine coolant temperature decided 

(CONSULT 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 cool-

ing fan operates while engine is running.

• ECM operates active grille shutter to fully-open position.

P0116

P0125

Engine coolant temperature 
sensor

ECM operates active grille shutter to fully-open position.

P0122
P0123
P0222
P0223
P2135

Throttle position sensor

ECM controls the electric throttle control actuator in regulating the throttle opening in order 
for the idle position to be within +10 degrees.
ECM regulates the opening speed of the throttle valve to be slower than the normal con-
dition.
So, the acceleration will be poor. 

P0196
P0197
P0198

Engine oil temperature sensor

• Exhaust valve timing control does not function.
• ECM operates active grille shutter to fully-open position.

P0500

Vehicle speed sensor

• The cooling fan operates (Highest) while engine is running.
• ECM operates active grille shutter to fully-open position.

P0524

Engine oil pressure

• ECM illuminates oil pressure warning lamp on the combination meter.
• Engine speed will not rise more than 4,000 rpm due to the fuel cut.
• Fail-safe is canceled when ignition switch OFF 

→ ON.

P059F

Active grille shutter

• When a voltage and temperature related malfunction is detected, the active grille shutter 

stops at the position of detection.

• Except for the above case, operates the active grille shutter to fully closed position.

EC-84

< ECU DIAGNOSIS INFORMATION >

[HR16DE]

ECM

DTC Inspection Priority Chart

INFOID:0000000009020644

If some DTCs are displayed at the same time, perform inspections one by one based on the following priority

chart.

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.

P0607

ECM

ECM operates active grille shutter to fully-open position.

P0643

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.

P1720

Vehicle speed sensor

ECM operates active grille shutter to fully-open position.

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

P2100
P2103

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.

P2101

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.

P2118

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.

P2119

Electric throttle control actuator

(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.

P2122
P2123
P2127
P2128
P2138

Accelerator pedal position sen-
sor

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

ECM

EC-85

< ECU DIAGNOSIS INFORMATION >

[HR16DE]

C

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E

F

G

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EC

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Priority

Detected items (DTC)

1

• U0101 U1001 CAN communication line
• U0284 Active grille shutter
• U1040 Engine communication line
• P0101 P0102 P0103 Mass air flow sensor
• P0111 P0112 P0113 P0127 Intake air temperature sensor
• P0116 P0117 P0118 P0125 Engine coolant temperature sensor
• P0122 P0123 P0222 P0223 P1225 P1226 P2135 Throttle position sensor
• P0128 Thermostat function
• P0181, P0182, P0183 Fuel tank temperature sensor
• P0196 P0197 P0198 Engine oil temperature sensor
• P0327 P0328 Knock sensor
• P0335 Crankshaft position sensor (POS)
• P0340 Camshaft position sensor (PHASE)
• P0500 Vehicle speed sensor
• P0520 Engine oil pressure sensor
• P0605 P0607 ECM
• P0643 Sensor power supply
• P0850 Park/neutral position (PNP) switch
• P1550 P1551 P1552 P1553 P1554 Battery current sensor
• P1610 - P1615 NATS
• P2122 P2123 P2127 P2128 P2138 Accelerator pedal position sensor

2

• P0031 P0032 Air fuel ratio (A/F) sensor 1 heater
• P0037 P0038 Heated oxygen sensor 2 heater
• P0075 Intake valve timing control solenoid valve
• P0078 Exhaust valve timing control solenoid valve
• P0130 P0131 P0132 P0133 P014C P014D P015A P015B P2096 P2097 Air fuel ratio (A/F) sensor 1
• P0137 P0138 P0139 Heated oxygen sensor 2
• P0441 EVAP control system purge flow monitoring
• P0443, P0444, P0445 EVAP canister purge volume control solenoid valve
• P0447, P0448 EVAP canister vent control valve
• P0451, P0452, P0453 EVAP control system pressure sensor
• P0460, P0461, P0462, P0463 Fuel level sensor
• P059F Active grille shutter
• P0603 ECM
• P1078 Exhaust valve timing control position sensor
• P1217 Engine over temperature (OVERHEAT)
• P1805 Brake switch
• P2100 P2103 Throttle control motor relay
• P2101 Electric throttle control function
• P2118 Throttle control motor

3

• P0011 Intake valve timing control
• P0014 Exhaust valve timing control
• P0171 P0172 Fuel injection system function
• P0300 - P0304 Misfire
• P0420 Three way catalyst function
• P0456 EVAP control system (VERY SMALL LEAK)
• P0506, P0507 Idle speed control system
• P050A P050B P050E Cold start control
• P0524 Engine oil pressure
• P1148 Closed loop control
• P117A Air fuel ratio
• P1212 TCS communication line
• P1564 ASCD steering switch
• P1572 ASCD brake switch
• P1574 ASCD vehicle speed sensor
• P1715 Input speed sensor
• P1720 Vehicle speed sensor
• P2119 Electric throttle control actuator