Infiniti FX35 / FX45. Manual - part 446

 

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Infiniti FX35 / FX45. Manual - part 446

 

 

ASCD BRAKE SWITCH

EC-545

< SERVICE INFORMATION >

[VQ35DE]

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4.

Check voltage between ASCD brake switch terminal 1 and
ground with CONSULT-III or tester.

OK or NG

OK

>> GO TO 4.

NG

>> GO TO 3.

3.

DETECT MALFUNCTIONING PART

Check the following.
• Fuse block (J/B) connector E201
• 10A fuse
• Harness for open or short between ASCD brake switch and fuse

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

4.

CHECK ASCD BRAKE SWITCH INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT

1.

Turn ignition switch OFF.

2.

Disconnect ECM harness connector.

3.

Check harness continuity between ECM terminal 108 and ASCD brake switch terminal 2.
Refer to Wiring Diagram.

4.

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

OK or NG

OK

>> GO TO 6.

NG

>> GO TO 5.

5.

DETECT MALFUNCTIONING PART

Check the following.
• Harness connectors E211, M41
• Harness for open or short between ECM and ASCD brake switch

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

6.

CHECK ASCD BRAKE SWITCH

Refer to 

EC-545, "Component Inspection"

 

OK or NG

OK

>> GO TO 7.

NG

>> Replace ASCD brake switch.

7.

CHECK INTERMITTENT INCIDENT

Refer to 

EC-139

.

>> INSPECTION END

Component Inspection

INFOID:0000000001326430

ASCD BRAKE SWITCH

1.

Turn ignition switch OFF.

2.

Disconnect ASCD brake switch harness connector.

Voltage: Battery voltage

PBIB0857E

Continuity should exist.

EC-546

< SERVICE INFORMATION >

[VQ35DE]

ASCD BRAKE SWITCH

3.

Check continuity between ASCD brake switch terminals 1 and 2
under the following conditions.

If NG, adjust ASCD brake switch installation, refer to 

BR-5

, and

perform step 3 again.

Condition

Continuity

Brake pedal: Fully released

Should exist.

Brake pedal: Slightly depressed

Should not exist.

SEC023D

ASCD INDICATOR

EC-547

< SERVICE INFORMATION >

[VQ35DE]

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ASCD INDICATOR

Component Description

INFOID:0000000001326431

ASCD indicator lamp illuminates to indicate ASCD operation status. Lamp has two indicators, CRUISE, SET,
and is integrated in combination meter.
CRUISE indicator illuminates when MAIN switch on ASCD steering switch is turned ON to indicated that
ASCD system is ready for operation.
SET indicator illuminates when following conditions are met. 
• CRUISE indicator is illuminated.
• SET/COAST switch on ASCD steering switch is turned ON while vehicle speed is within the range of ASCD

setting.

SET indicator remains lit during ASCD control.
Refer to 

EC-37

 for the ASCD function.

CONSULT-III Reference Value in Data Monitor Mode

INFOID:0000000001326432

Specification data are reference value.

MONITOR ITEM

CONDITION

SPECIFICATION

CRUISE LAMP

• Ignition switch: ON

• ON/OFF (MAIN) switch: Pressed 

at the 1st time 

 at the 2nd time

ON 

 OFF

SET LAMP

• MAIN switch: ON
• When vehicle speed is be-

tween 40km/h (25MPH) and 
144km/h (89MPH)

ASCD: Operating

ON

ASCD: Not operating

OFF

EC-548

< SERVICE INFORMATION >

[VQ35DE]

ASCD INDICATOR

Wiring Diagram

INFOID:0000000001326433

Diagnosis Procedure

INFOID:0000000001326434

1.

CHECK OVERALL FUNCTION

Check ASCD indicator under the following conditions.

TBWM1412E

 

 

 

 

 

 

 

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