Nissan Qashqai (2007-2010). Manual - part 339

P1229 SENSOR POWER SUPPLY

EC-875

< COMPONENT DIAGNOSIS >

[MR20DE (WITH EURO-OBD)]

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P1229 SENSOR POWER SUPPLY

DTC Logic

INFOID:0000000001089461

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 10V 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-878, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000001089462

1.

CHECK GROUND CONNECTION

1.

Turn ignition switch OFF.

2.

Check ground connection E21. Refer to Ground Inspection in 

GI-41, "Circuit Inspection"

. 

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 CIRCUITS

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

E110

4

Ground

Approx. 5V

EC-876

< COMPONENT DIAGNOSIS >

[MR20DE (WITH EURO-OBD)]

P1229 SENSOR POWER SUPPLY

Is the inspection result normal?

YES

>> GO TO 4.

NO

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

4.

CHECK COMSHAFT PSITION SENSOR

Refer to 

EC-815, "Component Inspection"

.

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> Replace malfunctioning component.

5.

CHECK TP SENSOR

Refer to 

EC-908, "Component Inspection"

.

Is the inspection result normal?

YES

>> GO TO 9.

NO

>> GO TO 6.

6.

REPLACE ELECTRIC THROTTLE CONTROL ACTUATOR

1.

Replace electric throttle control actuator.

2.

Go to 

EC-833, "Special Repair Requirement"

.

>> INSPECTION END

7.

CHECK APP SENSOR

Refer to 

EC-901, "Component Inspection"

.

Is the inspection result normal?

YES

>> GO TO 9.

NO

>> GO TO 8.

8.

REPLACE ACCELERATOR PEDAL ASSEMBLY

1.

Replace accelerator pedal assembly.

2.

Go to 

EC-647, "ACCELERATOR PEDAL RELEASED POSITION LEARNING : Special Repair Require-

ment"

.

>> INSPECTION END

9.

CHECK INTERMITTENT INCIDENT

Refer to 

GI-39, "Intermittent Incident"

.

>> INSPECTION END

ECM

Sensor

Connector

Terminal

Item

Connector

Terminal

F8

72

Electric throttle control actuator

F29

1

78

CMP sensor (PHASE)

F26

1

E16

106

APP sensor

E110

4

P1564 ASCD STEERING SWITCH

EC-877

< COMPONENT DIAGNOSIS >

[MR20DE (WITH EURO-OBD)]

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P1564 ASCD STEERING SWITCH

Description

INFOID:0000000001089463

ASCD steering switch has variant values of electrical resistance for each button. ECM reads voltage variation
of switch, and determines which button is operated.
Refer to 

EC-677, "System Description"

 for the ASCD function.

DTC Logic

INFOID:0000000001089464

DTC DETECTION LOGIC

NOTE:
If DTC P1564 is displayed with DTC P0605, first perform the trouble diagnosis for DTC P0605. Refer to

EC-827, "DTC 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. 

>> GO TO 2.

2.

PERFORM DTC CONFIRMATION PROCEDURE

1.

Turn ignition switch ON.

2.

Wait at least 10 seconds.

3.

Press MAIN switch for at least 10 seconds, then release it and wait at least 10 seconds.

4.

Press CANCEL switch for at least 10 seconds, then release it and wait at least 10 seconds.

5.

Press RESUME/ACCELERATE switch for at least 10 seconds, then release it and wait at least 10 sec-
onds.

6.

Press SET/COAST switch for at least 10 seconds, then release it and wait at least 10 seconds.

7.

Check DTC.

Is DTC detected?

YES

>> Go to 

EC-880, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000001089465

1.

CHECK GROUND CONNECTION

1.

Turn ignition switch OFF.

2.

Check ground connection E21. Refer to Ground Inspection in 

GI-41, "Circuit Inspection"

. 

Is the inspection result normal?

YS

>> GO TO 2.

NO

>> Repair or replace ground connection.

2.

CHECK ASCD STEERING SWITCH CIRCUIT

 With CONSULT-III

1.

Turn ignition switch ON.

DTC No.

Trouble diagnosis 

name

DTC detecting condition

Possible cause

P1564

ASCD steering switch

• An excessively high voltage signal from the 

ASCD steering switch is sent to ECM.

• ECM detects that input signal from the 

ASCD steering switch is out of the specified 
range.

• ECM detects that the ASCD steering switch 

is stuck ON.

• Harness or connectors

(The switch circuit is open or shorted.)

• ASCD steering switch
• ECM

EC-878

< COMPONENT DIAGNOSIS >

[MR20DE (WITH EURO-OBD)]

P1564 ASCD STEERING SWITCH

2.

Select “MAIN SW”, “CANCEL SW”, “RESUME/ACC SW” and “SET SW” in “DATA MONITOR” mode with
CONSULT-III.

3.

Check each item indication under the following conditions.

 Without CONSULT-III

1.

Turn ignition switch ON.

2.

Check the voltage between ECM harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 8.

NO

>> GO TO 3.

3.

CHECK ASCD STEERING SWITCH GROUND CIRCUIT FOR OPEN AND SHORT

1.

Turn ignition switch OFF.

2.

Disconnect ECM harness connector.

3.

Disconnect combination switch harness connector M352.

4.

Check the continuity between ASCD steering switch and ECM harness connector.

5.

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

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> GO TO 4.

4.

DETECT MALFUNCTIONING PART

Check the following.
• Harness connectors M77, E105
• Combination switch (spiral cable)
• Harness for open and short between ECM and ASCE steering switch

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

5.

CHECK ASCD STEERING SWITCH INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT

Monitor item

Condition

Indication

MAIN SW

MAIN switch

Pressed

ON

Released

OFF

CANCEL SW

CANCEL switch

Pressed

ON

Released

OFF

RESUME/ACC SW

RESUME/ACCELERATE switch

Pressed

ON

Released

OFF

SET SW

SET/COAST switch

Pressed

ON

Released

OFF

ECM

Ground

Condition

Voltage

Connector

Terminal

E16

94

(ASCD steering switch signal)

Ground

MAIN switch: Pressed

Approx. 0V

CANSEL switch: Pressed

Approx. 1V

SET/COAST switch: Pressed

Approx. 2V

RESUME/ACCELERATE switch: Pressed

Approx. 3V

All ASCD steering switches: Released

Approx. 4V

ASCD steering switch

ECM

Continuity

Terminal

Connector

Terminal

15

E16

95

Existed