Infiniti F50. Manual — part 27

ELECTRICAL COMPONENT INSPECTION

ACS-101

[ICC]

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ACS

ELECTRICAL COMPONENT INSPECTION

PFP:00000

ICC Steering Switch

EKS003RJ

1.

Disconnect ICC steering switch.

2.

Check resistance between M443 terminals 1 and 2 by depress-
ing each switch.

ICC Brake Switch and Stop Lamp Switch

EKS003QB

Check each switch after adjusting brake pedal, refer to

BR-6,

"BRAKE PEDAL"

.

Booster Solenoid

EKS003QC

Disconnect booster solenoid/release switch connector, and check
resistance value between terminals 4 and 6.

Switch

Condition

Resistance [

Ω

]

ON/OFF

Depressed

Approx. 0

Released

Approx. 5,456

DISTANCE

Depressed

Approx. 741

Released

Approx. 5,456

ACCELERATE/
RESUME

Depressed

Approx. 2,586

Released

Approx. 5,456

COAST/SET

Depressed

Approx. 1,406

Released

Approx. 5,456

CANCEL

Depressed

Approx. 309

Released

Approx. 5,456

PKIA2215E

Condition

Continuity

ICC brake switch

Stop lamp switch

When brake pedal is depressed

No

Yes

When brake pedal is released

Yes

No

SKIA1254E

4 - 6

:Approx. 1.4

Ω

SKIA1255E

ACS-102

[ICC]

ELECTRICAL COMPONENT INSPECTION

Release Switch

EKS003QD

Disconnect booster solenoid/release switch connector and check
resistance between the terminals.

(Note): However, if pedal is depressed insufficiently, resistance value may remain
unchanged.

ASCD Actuator

EKS003QE

1.

Disconnect vacuum hose from ASCD actuator.

2.

Connect the hose of hand vacuum pump to ASCD actuator.

Vacuum Hose

EKS003QF

Check vacuum hose (between ASCD actuator and ASCD pump) for
breakage, cracks or fracture.

ASCD Pump

EKS003QG

1.

Disconnect vacuum hose from ASCD pump and ASCD pump harness connector.

2.

If necessary remove ASCD pump.

3.

Connect vacuum gauge to ASCD pump.

4.

Apply 12V direct current to ASCD pump and check operation.

Condition

1 - 3

1 - 2

2 - 3

Release the brake pedal.

Continuity

should exist.

Continuity

should not

exist.

Continu-

ity should

not exist.

Depress the brake pedal.

Continuity

should not

exist. (Note)

Continuity

should

exist.

(Note)

Continu-

ity should

not exist.

SKIA1256E

Apply –40 kPa (–0.41 kg/cm

2

, –5.8 psi) vacuum to ASCD

actuator with hand vacuum pump.

ASCD wire should move to pull throttle drum.

Wait 10 seconds and check for decrease in vacuum
pressure.

Vacuum pressure
decrease:

Less than 2.7 kPa (0.028

kg/cm

2

, 0.39 psi)

PBIC0218E

MEL402G

ELECTRICAL COMPONENT INSPECTION

ACS-103

[ICC]

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ACS

12V direct current supply ter-
minals

Operation

(+)

(–)

Air valve

1

2

Close

Release valve

3

Close

Vacuum motor

4

Operate

A vacuum pressure of at least – 40 kPa (– 0.41 kg/cm

2

,

– 5.8 psi) should be generated.

PBIC0219E

ACS-104

[ICC]

REMOVAL AND INSTALLATION

REMOVAL AND INSTALLATION

PFP:00000

ICC Unit

EKS003QH

ICC Sensor

EKS003QI

SKIA1250E

SKIA1251E