Nissan Qashqai J11. Manual — part 338

P1564 ASCD STEERING SWITCH

ECM-329

< DTC/CIRCUIT DIAGNOSIS >

[MR20DD]

C

D

E

F

G

H

I

J

K

L

M

A

ECM

N

P

O

2.

Also check harness for short to ground and to power.

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> Repair or replace malfunctioning part.

5.

CHECK ASCD STEERING SWITCH

Check ASCD steering switch. Refer to

ECM-329, "Component Inspection"

.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace ASCD steering switch. Refer to

ST-8, "Removal and Installation"

.

Component Inspection

INFOID:0000000010703022

1.

CHECK ASCD STEERING SWITCH

1.

Turn ignition switch OFF.

2.

Disconnect combination switch (spiral cable) harness connector.

3.

Check the resistance between combination switch harness connector terminals as per the following condi-
tions.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace ASCD steering switch. Refer to

ST-8, "Removal and Installation"

.

+

–

Continuity

Combination switch

(Spiral cable)

ECM

Connector

Terminal

Connector

Terminal

M66

27

E57

110

Existed

Combination switch

(Spiral cable)

Condition

Resistance

(Approx.)

Connector

+

−

Terminal

M303

8

9

MAIN switch: Pressed

0

Ω

CANCEL switch: Pressed

250

Ω

COAST/SET switch: Pressed

660

Ω

ACCEL/RES switch: Pressed

1,480

Ω

All ASCD steering switches: Released

4,000

Ω

ECM-330

< DTC/CIRCUIT DIAGNOSIS >

[MR20DD]

P1568 SIGNAL INVALID

P1568 SIGNAL INVALID

DTC Description

INFOID:0000000010703023

DTC DETECTION LOGIC

POSSIBLE CAUSE

• Chassis control module
• ECM

FAIL-SAFE

Not applicable

DTC CONFIRMATION PROCEDURE

1.

CHECK DTC PRIORITY

If DTC P1568 is displayed with DTC UXXXX, first perform the confirmation procedure for DTC UXXXX.

Is applicable DTC detected?

YES

>> Perform diagnosis for detected DTC. Refer to

ECM-93, "DTC Index"

.

NO

>> GO TO 2.

2.

PRECONDITIONING

If DTC Confirmation Procedure has been previously conducted, always perform the following procedure
before conducting the next test.
1.

Turn ignition switch OFF and wait at least 10 seconds.

2.

Turn ignition switch ON.

3.

Turn ignition switch OFF and wait at least 10 seconds.

>> GO TO 3.

3.

PERFORM DTC CONFIRMATION PROCEDURE

1.

Turn ignition switch ON and wait at least 5 seconds.

2.

Check DTC.

Is DTC detected?

YES

>> Proceed to

ECM-330, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000010703024

1.

CHECK DTC PRIORITY

If DTC P1568 is displayed with DTC UXXXX, first perform the confirmation procedure for DTC UXXXX.
Is applicable DTC detected?

YES

>> Perform diagnosis for detected DTC. Refer to

ECM-93, "DTC Index"

.

NO

>> GO TO 2.

2.

CHECK SELF-DIAGNOSTIC RESULT OF CHASSIS CONTROL MODULE

Check that the chassis control module does not detect any DTC.

Is any DTC detected?

YES

>> GO TO 3.

NO

>> Replace chassis control module. Refer to

DAS-312, "Removal and Installation"

.

3.

REPLACE CHASSIS CONTROL MODULE

DTC No.

CONSULT screen terms

(Trouble diagnosis content)

DTC detecting condition

P1568

ICC COMMAND VALUE
(Intelligent cruise control command value)

ECM detects that a throttle valve opening angle request signal sent from
chassis control module is difference from the specified value calculated by
ECM.

P1568 SIGNAL INVALID

ECM-331

< DTC/CIRCUIT DIAGNOSIS >

[MR20DD]

C

D

E

F

G

H

I

J

K

L

M

A

ECM

N

P

O

1.

Replace chassis control module. Refer to

DAS-312, "Removal and Installation"

.

2.

Perform DTC Confirmation Procedure again.

Is DTC P1568 detected again?

YES

>> Replace ECM. Refer to

ECM-416, "Removal and Installation"

.

NO

>> INSPECTION END

ECM-332

< DTC/CIRCUIT DIAGNOSIS >

[MR20DD]

P1572 BRAKE PEDAL POSITION SWITCH

P1572 BRAKE PEDAL POSITION SWITCH

DTC Description

INFOID:0000000010703025

DTC DETECTION LOGIC

NOTE:
This self-diagnosis has the one trip detection logic. When malfunction A is detected, DTC is not stored in ECM
memory. And in that case, 1st trip DTC and 1st trip freeze frame data are displayed. 1st trip DTC is erased
when ignition switch OFF. And even when malfunction A is detected in two consecutive trips, DTC is not
stored in ECM memory.

POSSIBLE CAUSE

• Harness or connectors
- Stop lamp switch circuit is shorted.
- Brake pedal position switch circuit is shorted.
• Stop lamp switch
• Brake pedal position switch
• Incorrect stop lamp switch installation
• Incorrect brake pedal position switch installation
• ECM

FAIL-SAFE

Not applicable

DTC CONFIRMATION PROCEDURE

1.

CHECK DTC PRIORITY

If DTC P1572 is displayed with DTC P0605, perform the trouble diagnosis for DTC P0605.

Is applicable DTC detected?

YES

>> Perform diagnosis of applicable. Refer to

ECM-299, "DTC Description"

.

NO

>> GO TO 2.

2.

PRECONDITIONING

If DTC Confirmation Procedure has been previously conducted, always perform the following procedure
before conducting the next test.
1.

Turn ignition switch OFF and wait at least 10 seconds.

2.

Turn ignition switch ON.

3.

Turn ignition switch OFF and wait at least 10 seconds.

NOTE:
Procedure for malfunction B is not described here. It takes extremely long time to complete procedure for mal-
function B. By performing procedure for malfunction A, the incident that causes malfunction B can be
detected.

Will CONSULT be used?

YES

>> GO TO 3.

NO

>> GO TO 5.

3.

PERFORM DTC CONFIRMATION PROCEDURE-1

With CONSULT

1.

Start engine.

2.

Select “DATA MONITOR” mode of “ENGINE” using CONSULT.

3.

Press MAIN switch and make sure that CRUISE indicator is displayed in combination meter.

4.

Drive the vehicle for at least 5 consecutive seconds as per the following conditions.

DTC No.

CONSULT screen terms

(Trouble diagnosis content)

DTC detecting condition

P1572

ASCD BRAKE SW
(ASCD brake switch)

A

When the vehicle speed is above 30 km/h (19 MPH), ON signals from the
stop lamp switch and the brake pedal position switch are sent to the ECM
at the same time.

B

Brake pedal position switch signal is not sent to ECM for extremely long
time while the vehicle is driving.