Nissan Tiida C11. Manual - part 571

EC-934

< COMPONENT DIAGNOSIS >

[MR18DE]

P1572 ASCD BRAKE SWITCH

5.

Check 1st trip DTC.

With GST

Follow the procedure “With CONSULT-III” above.
Is 1st trip DTC detected?

YES

>> Go to 

EC-934, "Diagnosis Procedure"

.

NO

>> GO TO 3.

3.

PERFORM DTC CONFIRMATION PROCEDURE FOR MALFUNCTION A-II

1.

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

CAUTION:

Always drive vehicle at a safe speed.
NOTE:
This procedure may be conducted with the drive wheels lifted in the shop or by driving the vehicle.
If a road test is expected to be easier, it is unnecessary to lift the vehicle.

2.

Check 1st trip DTC.

Is 1st trip DTC detected?

YES

>> Go to 

EC-934, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000001610402

1.

CHECK OVERALL FUNCTION-I

 With CONSULT-III

1.

Turn ignition switch ON.

2.

Select “BRAKE SW1” in “DATA MONITOR” mode with CONSULT-III.

3.

Check “BRAKE SW1” indication under the following conditions.

 Without CONSULT-III

1.

Turn ignition switch ON.

2.

Check the voltage between ECM harness connector terminal as follows.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> GO TO 3.

2.

CHECK OVERALL FUNCTION-II

VHCL SPEED SE

More than 30 km/h (19 mph)

Shift lever

Suitable position 

VHCL SPEED SE

More than 30 km/h (19 mph)

Selector lever

Suitable position 

Driving location

Depress the brake pedal for more than 
five seconds so as not to come off from 
the above-mentioned vehicle speed.

Monitor item

Condition

Indication

BRAKE SW1

Brake pedal and clutch pedal

Slightly depressed

OFF

Fully released

ON

(+)

(

−

)

Condition

Voltage

Connector

Terminal

Connector

Terminal

E16

100

(ASCD brake switch signal)

E16

108

Brake pedal 

Slightly depressed

Approx. 0V

Fully released

Battery voltage

P1572 ASCD BRAKE SWITCH

EC-935

< COMPONENT DIAGNOSIS >

[MR18DE]

C

D

E

F

G

H

I

J

K

L

M

A

EC

N

P

O

 With CONSULT-III

Select “BRAKE SW2” and check indication in “DATA MONITOR” mode. 

 Without CONSULT-III

Check the voltage between ECM harness connector terminal as follows.

Is the inspection result normal?

YES

>> GO TO 16.

NO

>> GO TO 11.

3.

CHECK ASCD BRAKE SWITCH CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect ASCD cluch switch harness connector.

3.

Turn ignition switch ON.

4.

Check the voltage between ASCD cluch switch harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 8.

NO

>> GO TO 4.

4.

CHECK ASCD BRAKE SWITCH POWER SUPPLY CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect ASCD brake switch harness connector.

3.

Turn ignition switch ON.

4.

Check the voltage between ASCD brake switch harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 6.

NO

>> GO TO 5.

5.

DETECT MALFUNCTIONING PART

Check the following.
• Harness connectors E7, M69 (LHD models)
• Harness connectors M201, M25 (RHD models)
• 10A fuse (No.2)
• Harness for open or short between ASCD brake switch and fuse

Monitor item

Condition

Indication

BRAKE SW2

Brake pedal

Slightly depressed

ON

Fully released

OFF

(+)

(

−

)

Condition

Voltage

Connector

Terminal

Connector

Terminal

E16

99

(Stop lamp switch signal)

E108

108

Brake pedal

Slightly depressed

Approx. 0V

Fully released

Battery voltage

ASCD Clutch switch

Ground

Condition

Voltage (V)

Connector

Terminal

E35 (LHD models)

M206 (RHD models)

1

Ground

Brake pedal

Slightly depressed

Approx. 0

Fully released

Battery voltage

ASCD brake switch

Ground

Voltage

Connector

Terminal

E36 (LHD models)

M205 (RHD models)

1

Ground

Battery voltage

EC-936

< COMPONENT DIAGNOSIS >

[MR18DE]

P1572 ASCD BRAKE SWITCH

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

6.

CHECK ASCD BRAKE SWITCH INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT

1.

Turn ignition switch OFF.

2.

Check the continuity between ASCD brake switch harness connector and ASCD clutch switch harness
connector.

3.

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

Is the inspection result normal?

YES 

>> GO TO 7.

NO

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

7.

CHECK ASCD BRAKE SWITCH

Refer to 

EC-966, "Component Inspection (ASCD Brake Switch)"

.

Is the inspection result normal?

YES

>> GO TO 16.

NO

>> Replace ASCD brake switch.

8.

CHECK ASCD BRAKE SWITCH INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT

1.

Turn ignition switch OFF.

2.

Disconnect ECM harness connector.

3.

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

4.

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

Is the inspection result normal?

YES 

>> GO TO 10.

NO

>> GO TO 9.

9.

DETECT MALFUNCTIONING PART

Check the following.
• Harness connector E7, M69, M201, M25 (RHD models)
• Harness for open or short between ECM and ASCD clutch switch

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

10.

CHECK ASCD CLUTCH SWITCH

Refer to 

EC-966, "Component Inspection (ASCD Clutch Switch)"

.

Is the inspection result normal?

YES

>> GO TO 16.

NO

>> Replace ASCD clutch switch.

11.

CHECK STOP LAMP SWITCH POWER SUPPLY CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect stop lamp switch harness connector.

3.

Check the voltage between stop lamp switch harness connector and ground.

ASCD brake switch

ASCD clutch switch

Continuity

Connector

Terminal

Connector

Terminal

E36 (LHD models)

M205 (RHD models)

2

E35 (LHD models)

M206 (RHD models)

1

Existed

ECM

ASCD cluch switch

Continuity

Connector

Terminal

Connector

Terminal

E16

100

E35 (LHD models)

M206 (RHD models)

2

Existed

P1572 ASCD BRAKE SWITCH

EC-937

< COMPONENT DIAGNOSIS >

[MR18DE]

C

D

E

F

G

H

I

J

K

L

M

A

EC

N

P

O

Is the inspection result normal?

YES

>> GO TO 13.

NO

>> GO TO 12.

12.

DETECT MALFUNCTIONING PART

Check the following.
• Harness connectors M69, E7 (LHD models)
• Harness connectors M25, M201 (RHD models)
• 10A fuse (No.7)
• Harness for open or short between stop lamp switch and battery

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

13.

CHECK STOP LAMP SWITCH INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT

1.

Disconnect ECM harness connector.

2.

Check the continuity between ECM harness connector and stop lamp switch harness connector.

3.

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

Is the inspection result normal?

YES

>> GO TO 15.

NG

>> GO TO 14.

14.

DETECT MALFUNCTIONING PART

Check the following.
• Harness connector E7, M69, M201, M25 (RHD models)
• Harness for open or short between ECM and stop lamp switch

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

15.

CHECK STOP LAMP SWITCH

Refer to 

EC-946, "Component Inspection (Stop Lamp Switch)"

.

Is the inspection result normal?

YES

>> GO TO 16.

NO

>> Replace stop lamp switch.

16.

CHECK INTERMITTENT INCIDENT

Refer to 

GI-55, "Intermittent Incident"

.

>> INSPECTION END

Component Inspection (ASCD Brake Switch)

INFOID:0000000001161916

1.

CHECK ASCD BRAKE SWITCH-I

1.

Turn ignition switch OFF.

2.

Disconnect ASCD brake switch harness connector.

3.

Check the continuity between ASCD brake switch terminals under the following conditions.

Stop lamp switch

Ground

Voltage

Connector

Terminal

E13 (LHD models)

M203 (RHD models)

1

Ground

Battery voltage

ECM

Stop lamp switch

Continuity

Connector

Terminal

Connector

Terminal

E16

99

E13 (LHD models)

M203 (RHD models)

2

Existed