Nissan Tiida C11. Manual - part 491

 

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Nissan Tiida C11. Manual - part 491

 

 

EC-614

< COMPONENT DIAGNOSIS >

[HR16DE (WITHOUT EURO-OBD)]

HO2S1 HEATER

NO

>> Repair or replace ground connection.

2.

CHECK HO2S1 POWER SUPPLY CIRCUIT

1.

Disconnect HO2S1 harness connector.

2.

Turn ignition switch ON.

3.

Check the voltage between HO2S1 harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> GO TO 3.

3.

DETECT MALFUNCTIONING PART

Check the following.
• Harness connectors F123, E6
• 10A fuse (No. 56)
• Harness for open or short between HO2S1 and fuse

>> Repair or replace harness or connectors.

4.

CHECK HO2S1 HEATER OUTPUT SIGNAL CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect ECM harness connector.

3.

Check the continuity between HO2S1 harness connector and ECM harness connector.

4.

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

Is the inspection result normal?

YES

>> GO TO 5.

NO

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

5.

CHECK HO2S1 HEATER

Refer to 

EC-615, "Component Inspection"

.

Is the inspection result normal?

YES

>> GO TO 7.

NO

>> GO TO 6.

6.

REPLACE HEATED OXYGEN SENSOR 1

Replace Heated oxygen sensor 1.

CAUTION:

• Discard any heated oxygen sensor 1 which has been dropped from a height of more than 0.5 m (19.7

in) onto a hard surface such as a concrete floor; use a new one.

• Before installing new heated oxygen sensor 1, clean exhaust system threads using Oxygen Sensor

Thread Cleaner tool and approved anti-seize lubricant.

>> INSPECTION END

7.

CHECK INTERMITTENT INCIDENT

Perform 

GI-55, "Intermittent Incident"

.

>> Repair or replace.

HO2S1

Ground

Voltage

Connector

Terminal

F30

2

Ground

Battery voltage

HO2S1

ECM

Continuity

Connector

Terminal

Connector

Terminal

F30

3

F7

3

Existed

HO2S1 HEATER

EC-615

< COMPONENT DIAGNOSIS >

[HR16DE (WITHOUT EURO-OBD)]

C

D

E

F

G

H

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EC

N

P

O

Component Inspection

INFOID:0000000001697498

1.

CHECK HEATED OXYGEN SENSOR 1

1.

Turn ignition switch OFF.

2.

Disconnect heated oxygen sensor 1 harness connector.

3.

Check resistance between HO2S1 terminals as follows.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> GO TO 2.

2.

REPLACE HEATED OXYGEN SENSOR 1

Replace heated oxygen sensor 1.

CAUTION:

• Discard any sensor which has been dropped from a height of more than 0.5 m (19.7 in) onto a hard

surface such as a concrete floor; use a new one.

• Before installing new sensor, clean exhaust system threads using Heated Oxygen Sensor Thread

Cleaner tool and approved anti-seize lubricant.

>> INSPECTION END

Terminals

Resistance [at 25

°

C (77

°

F)]

2 and 3

3.4 - 4.4 

 

1 and 2, 3, 4

 

(Continuity should not exist)

4 and 1, 2, 3

EC-616

< COMPONENT DIAGNOSIS >

[HR16DE (WITHOUT EURO-OBD)]

HO2S2

HO2S2

Description

INFOID:0000000001697499

The heated oxygen sensor 2, after three way catalyst (manifold),
monitors the oxygen level in the exhaust gas on each bank.
Even if switching characteristics of the heated oxygen sensor 1 are
shifted, the air-fuel ratio is controlled to stoichiometric, by the signal
from the heated oxygen sensor 2.
This sensor is made of ceramic zirconia. The zirconia generates volt-
age from approximately 1V in richer conditions to 0V in leaner condi-
tions.
Under normal conditions the heated oxygen sensor 2 is not used for
engine control operation.

Component Function Check

INFOID:0000000001697500

1.

PERFORM COMPONENT FUNCTION CHECK-I

1.

Start engine and warm it up to the normal operating temperature.

2.

Turn ignition switch OFF and wait at least 10 seconds.

3.

Start engine and keep the engine speed between 3,500 and 4,000 rpm for at least 1 minute under no load.

4.

Let engine idle for 1 minute.

5.

Check the voltage between ECM harness connector and ground under the following condition.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> GO TO 2.

2.

PERFORM COMPONENT FUNCTION CHECK-II

Check the voltage between ECM harness connector and ground under the following condition.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> GO TO 3.

3.

PERFORM COMPONENT FUNCTION CHECK-III

Check the voltage between ECM harness connector and ground under the following condition.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Go to 

EC-617, "Diagnosis Procedure"

.

SEF327R

ECM

Ground

Condition

Voltage

Connector

Terminal

F8

50

(HO2S2 signal)

Ground

Revving up to 4,000 rpm under no load at 
least 10 times

The voltage does not remain in the range of 
0.2 - 0.4V.

ECM

Ground

Condition

Voltage

Connector

Terminal

F8

50

(HO2S2 signal)

Ground

Keeping engine speed at idle for 10 minutes

The voltage does not remain in the range of 
0.2 - 0.4V.

ECM

Ground

Condition

Voltage

Connector

Terminal

F8

50

(HO2S2 signal)

Ground

Coasting from 80 km/h (50 MPH) in 3rd gear po-
sition 

The voltage does not remain in the range of 
0.2 - 0.4V.

HO2S2

EC-617

< COMPONENT DIAGNOSIS >

[HR16DE (WITHOUT EURO-OBD)]

C

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Diagnosis Procedure

INFOID:0000000001697501

1.

CHECK GROUND CONNECTION

1.

Turn ignition switch OFF.

2.

Check ground connection E21. Refer to Ground Inspection in 

GI-58, "Circuit Inspection"

.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair or replace ground connection.

2.

CHECK HO2S2 GROUND CIRCUIT FOR OPEN AND SHORT

1.

Turn ignition switch OFF.

2.

Disconnect heated oxygen sensor 2 harness connector.

3.

Disconnect ECM harness connector.

4.

Check the continuity between HO2S2 harness connector and ECM harness connector.

5.

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

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> GO TO 3.

3.

 DETECT MALFUNCTIONING PART

• Harness or connectors F121, E7
• Harness for open or short between HO2S2 and ECM.

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

4.

CHECK HO2S2 INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT

1.

Check the continuity between HO2S2 harness connector and ECM harness connector.

2.

Check the continuity between HO2S2 harness connector or ECM harness connector and ground.

3.

Also check harness for short to power.

Is the inspection result normal?

YES

>> GO TO 6.

NO

>> GO TO 5.

5.

 DETECT MALFUNCTIONING PART

• Harness or connectors F121, E7
• Harness for open or short between HO2S2 and ECM.

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

6.

CHECK HEATED OXYGEN SENSOR 2

Refer to 

EC-618, "Component Inspection"

.

HO2S2

ECM

Continuity

Connector

Terminal

Connector

Terminal

F42

1

F13

35

Existed

HO2S2

ECM

Continuity

Connector

Terminal

Connector

Terminal

F42

4

F13

33

Existed

HO2S2

ECM

Ground

Continuity

Connector

Terminal

Connector

Terminal

F42

4

F13

33

Ground

Not existed

 

 

 

 

 

 

 

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