Nissan Primera P12. Manual — part 234

DTC P0117, P0118 ECT SENSOR

EC-121

[YD (WITH EURO-OBD)]

C

D

E

F

G

H

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J

K

L

M

A

EC

Wiring Diagram

EBS013LM

MBWA0373E

EC-122

[YD (WITH EURO-OBD)]

DTC P0117, P0118 ECT SENSOR

Diagnostic Procedure

EBS013LN

1.

CHECK GROUND CONNECTIONS

1.

Turn ignition switch OFF.

2.

Loosen and retighten engine ground screws. Refer to

EC-82,

"Ground Inspection"

.

OK or NG

OK

>> GO TO 2.

NG

>> Repair or replace ground connections.

2.

CHECK ECT SENSOR POWER SUPPLY CIRCUIT

1.

Disconnect engine coolant temperature sensor harness connec-
tor.

2.

Turn ignition switch ON.

3.

Check voltage between ECT sensor terminal 2 and ground with
CONSULT-II or tester.

OK or NG

OK

>> GO TO 3.

NG

>> Repair harness or connectors.

3.

CHECK ECT SENSOR GROUND CIRCUIT FOR OPEN AND SHORT

1.

Turn ignition switch OFF.

2.

Disconnect ECM harness connector.

3.

Check harness continuity between ECT sensor terminal 1 and ECM terminal 70. Refer to Wiring Diagram.

4.

Also check harness for short to ground and short to power.

OK or NG

OK

>> GO TO 4.

NG

>> Repair open circuit or short to ground or short to power in harness or connectors.

MBIB0915E

PBIB0374E

Voltage: Approximately 5.3V

PBIB0192E

Continuity should exist.

DTC P0117, P0118 ECT SENSOR

EC-123

[YD (WITH EURO-OBD)]

C

D

E

F

G

H

I

J

K

L

M

A

EC

4.

CHECK ENGINE COOLANT TEMPERATURE SENSOR

Refer to

EC-123, "Component Inspection"

.

OK or NG

OK

>> GO TO 5.

NG

>> Replace engine coolant temperature sensor.

5.

CHECK INTERMITTENT INCIDENT

Refer to

EC-75, "TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT"

.

>> INSPECTION END

Component Inspection

EBS013LO

ENGINE COOLANT TEMPERATURE SENSOR

1.

Check resistance between engine coolant temperature sensor
terminals 1 and 2 as shown in the figure.

<Reference data>

2.

If NG, replace engine coolant temperature sensor.

Removal and Installation

EBS013LP

ENGINE COOLANT TEMPERATURE SENSOR

Refer to

EM-78, "CYLINDER HEAD"

.

PBIB2005E

Engine coolant temperature

°

C (

°

F)

Resistance k

Ω

20 (68)

2.1 - 2.9

50 (122)

0.68 - 1.00

90 (194)

0.236 - 0.260

SEF012P

EC-124

[YD (WITH EURO-OBD)]

DTC P0122, P0123 APP SENSOR

DTC P0122, P0123 APP SENSOR

PFP:18002

Description

EBS013LQ

The accelerator pedal position sensor is installed on the upper end
of the accelerator pedal assembly. The ECM uses the signal to
determine the amount of fuel to be injected.

CONSULT-II Reference Value in Data Monitor Mode

EBS013LR

Specification data are reference values.

*: This signal is converted by ECM internally. Thus, it differs from ECM terminal voltage.

ECM Terminals and Reference Value

EBS013LS

Specification data are reference values and are measured between each terminal and ground.

CAUTION:

Do not use ECM ground terminals when measuring input/output voltage. Doing so may result in dam-
age to the ECM's transistor. Use a ground other than ECM terminals, such as the ground.

PBIB1741E

MONITOR ITEM

CONDITION

SPECIFICATION

ACCEL POS SEN*

●

Ignition switch: ON
(Engine stopped)

Accelerator pedal: fully released

0.2 - 0.7V

Accelerator pedal: fully depressed

3.9 - 4.9V

ACCEL SEN 2*

●

Ignition switch: ON
(Engine stopped)

Accelerator pedal: fully released

0.1 - 0.4V

Accelerator pedal: fully depressed

1.9 - 2.4V

TERMI-

NAL

NO.

WIRE

COLOR

ITEM

CONDITION

DATA

(DC Voltage)

82

L/R

Accelerator pedal position
sensor 1 power supply

[Ignition switch ON]

Approximately 5.3V

83

L/W

Accelerator pedal position
sensor 1

[Ignition switch ON]

●

Engine stopped

●

Accelerator pedal fully released

0.5 - 1.0V

[Ignition switch ON]

●

Engine stopped

●

Accelerator pedal fully depressed

4.2 - 5.2V

84

L

Accelerator pedal position
sensor 1 ground

[Ignition switch ON]

Approximately 0.3V

85

—

Sensor ground
(Accelerator pedal posi-
tion sensor shield circuit)

[Ignition switch ON]

Approximately 0.3V

90

R

Accelerator pedal position
sensor 2 power supply

[Ignition switch ON]

Approximately 5.3V