Nissan March K13. Manual - part 248

P1225 TP SENSOR

EC-453

< DTC/CIRCUIT DIAGNOSIS >

[HR12DE (TYPE 2)]

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EC

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P1225 TP SENSOR

DTC Logic

INFOID:0000000006037375

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.

PRECONDITIONING

If DTC Confirmation Procedure has been previously conducted, always turn ignition switch OFF and wait at
least 10 seconds before conducting the next test.
TESTING CONDITION:
Before performing the following procedure, confirm that battery voltage is more than 10 V at idle.

>> GO TO 2.

2.

PERFORM DTC CONFIRMATION PROCEDURE

1.

Turn ignition switch ON.

2.

Turn ignition switch OFF and wait at least 10 seconds.

3.

Turn ignition switch ON.

4.

Check 1st trip DTC.

Is 1st trip DTC detected?

YES

>> Go to 

EC-453, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000006037376

1.

CHECK ELECTRIC THROTTLE CONTROL ACTUATOR VISUALLY

1.

Turn ignition switch OFF.

2.

Remove the intake air duct.

3.

Check if foreign matter is caught between the throttle valve (1)
and the housing.

-

: Vehicle front

Is the inspection result normal?

YES

>> Replace electric throttle control actuator. Refer to 

EM-

29, "WITH EGR CONTROL VALVE : Exploded View"

.

NO

>> Remove the foreign matter and clean the electric throttle

control actuator inside.

Special Repair Requirement

INFOID:0000000006037377

1.

PERFORM THROTTLE VALVE CLOSED POSITION LEARNING

Perform throttle valve closed position learning. Refer to 

EC-105, "Work Procedure"

.

>> GO TO 2

2.

PERFORM IDLE AIR VOLUME LEARNING

Perform idle air volume learning. Refer to 

EC-106, "Work Procedure"

.

>> END

DTC No.

Trouble diagnosis name

DTC detecting condition

Possible cause

P1225

Closed throttle position learning 
performance

Closed throttle position learning value is ex-
cessively low.

• Electric throttle control actuator

(TP sensor 1 and 2)

JSBIA0341ZZ

EC-454

< DTC/CIRCUIT DIAGNOSIS >

[HR12DE (TYPE 2)]

P1226 TP SENSOR

P1226 TP SENSOR

DTC Logic

INFOID:0000000006037378

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.

PRECONDITIONING

If DTC Confirmation Procedure has been previously conducted, always turn ignition switch OFF and wait at
least 10 seconds before conducting the next test.
TESTING CONDITION:
Before performing the following procedure, confirm that battery voltage is more than 10 V at idle.

>> GO TO 2.

2.

PERFORM DTC CONFIRMATION PROCEDURE

1.

Turn ignition switch ON.

2.

Turn ignition switch OFF and wait at least 10 seconds.

3.

Turn ignition switch ON.

4.

Repeat steps 2 and 3 for 32 times.

5.

Check 1st trip DTC.

Is 1st trip DTC detected?

YES

>> Go to 

EC-454, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000006037379

1.

CHECK ELECTRIC THROTTLE CONTROL ACTUATOR VISUALLY

1.

Turn ignition switch OFF.

2.

Remove the intake air duct.

3.

Check if foreign matter is caught between the throttle valve (1)
and the housing.

-

: Vehicle front

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Remove the foreign matter and clean the electric throttle

control actuator inside.

2.

REPLACE ELECTRIC THROTTLE CONTROL ACTUATOR

1.

Replace electric throttle control actuator.

2.

Perform 

EC-454, "Special Repair Requirement"

.

>> INSPECTION END

Special Repair Requirement

INFOID:0000000006037380

1.

PERFORM THROTTLE VALVE CLOSED POSITION LEARNING

Perform throttle valve closed position learning. Refer to 

EC-105, "Work Procedure"

.

DTC No.

Trouble diagnosis name

DTC detecting condition

Possible cause

P1226

Closed throttle position 
learning performance

Closed throttle position learning is not performed 
successfully, repeatedly.

• Electric throttle control actuator

(TP sensor 1 and 2)

JSBIA0341ZZ

P1226 TP SENSOR

EC-455

< DTC/CIRCUIT DIAGNOSIS >

[HR12DE (TYPE 2)]

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>> GO TO 2

2.

PERFORM IDLE AIR VOLUME LEARNING

Perform idle air volume learning. Refer to 

EC-106, "Work Procedure"

.

>> END

EC-456

< DTC/CIRCUIT DIAGNOSIS >

[HR12DE (TYPE 2)]

P1229 SENSOR POWER SUPPLY

P1229 SENSOR POWER SUPPLY

DTC Logic

INFOID:0000000005886587

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.

PRECONDITIONING

If DTC Confirmation Procedure has been previously conducted, always turn ignition switch OFF and wait at
least 10 seconds before conducting the next test.
TESTING CONDITION:
Before performing the following procedure, confirm that battery voltage is more than 10 V at idle.

>> GO TO 2.

2.

PERFORM DTC CONFIRMATION PROCEDURE

1.

Start engine and let it idle for 1 second.

2.

Check DTC.

Is DTC detected?

YES

>> Go to 

EC-456, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000005886588

1.

CHECK GROUND CONNECTION

1.

Turn ignition switch OFF.

2.

Check ground connection E38. Refer to Ground Inspection in 

XX-XX, "*****"

. 

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair or replace ground connection.

2.

CHECK ACCELERATOR PEDAL POSITION SENSOR 1 POWER SUPPLY CIRCUIT

1.

Disconnect accelerator pedal position (APP) sensor harness connector.

2.

Turn ignition switch ON.

3.

Check the voltage between APP sensor harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 7.

NO

>> GO TO 3.

3.

CHECK SENSOR POWER SUPPLY CIRCUIT

Check harness for short to power and short to ground, between the following terminals.

DTC No.

Trouble diagnosis name

DTC detecting condition

Possible cause

P1229

Sensor power supply circuit 
short

ECM detects a voltage of power source 
for sensor is excessively low or high.

• Harness or connectors

(APP sensor 1 circuit is shorted.)
(TP sensor circuit is shorted.)
[Camshaft position sensor (PHASE) circuit is 
shorted.]

• Accelerator pedal position sensor
• Throttle position sensor
• Camshaft position sensor (PHASE)

APP sensor

Ground

Voltage

Connector

Terminal

E108

4

Ground

Approx. 5 V