Infiniti FX35, FX50 (S51). Manual - part 1427

PCS-66

< DTC/CIRCUIT DIAGNOSIS >

[POWER DISTRIBUTION SYSTEM]

PUSH-BUTTON IGNITION SWITCH

Component Inspection

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1.

CHECK PUSH-BUTTON IGNITION SWITCH

1.

Turn ignition switch OFF.

2.

Disconnect push-button ignition switch connector.

3.

Check continuity between push-button ignition switch terminals.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace push-button ignition switch. Refer to 

PCS-133, "Removal and Installation"

.

Push-button ignition switch

Condition

Continuity

Terminal

1

4

Push-button ignition 

switch

Pressed

Existed

Not pressed

Not existed

PCS

PUSH-BUTTON IGNITION SWITCH POSITION INDICATOR

PCS-67

< DTC/CIRCUIT DIAGNOSIS >

[POWER DISTRIBUTION SYSTEM]

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PUSH-BUTTON IGNITION SWITCH POSITION INDICATOR

Description

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The switch that changes the power supply position.
BCM maintains the power supply position status.
BCM changes the power supply position with the operation of the push-button ignition switch.

Component Function Check

INFOID:0000000005240702

1.

CHECK FUNCTION

Check push-button ignition switch (“LOCK INDICATOR”, “ACC INDICATOR” and “IGNITION ON IND”) in
Active Test Mode with CONSULT-III.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Refer to 

PCS-67, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000005240703

1.

CHECK PUSH-BUTTON IGNITION SWITCH INPUT SIGNAL

1.

Turn ignition switch OFF.

2.

Disconnect push-button ignition switch connector.

3.

Check voltage between push-button ignition switch harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>>

Check the following.

• 10A fuse [No.9, located in fuse block (J/B)]
• Harness for open or short between push-button ignition switch and fuse
• If NG, repair or replace fuse or harness

2.

CHECK PUSH-BUTTON IGNITION SWITCH CIRCUIT

1.

Disconnect BCM connector.

2.

Check continuity between BCM harness connector and push-button ignition switch harness connector.

3.

Check continuity between BCM harness connector and ground.

Test item

Description

LOCK INDICATOR
ACC INDICATOR
IGNITION ON IND

ON

Position indicator

 Illuminates

OFF

Does not illuminate

(+)

(–)

Voltage (V)

(Approx.)

Push-button ignition switch

Connector

Terminal

M50

8

Ground

Battery voltage

Indicator

BCM

 Push-button ignition switch

Continuity

Connector

Terminal

Connector

Terminal

LOCK

M123

134

M50

5

Existed

ACC

M119

15

6

ON

M122

93

7

PCS-68

< DTC/CIRCUIT DIAGNOSIS >

[POWER DISTRIBUTION SYSTEM]

PUSH-BUTTON IGNITION SWITCH POSITION INDICATOR

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair or replace harness.

3.

CHECK PUSH-BUTTON IGNITION SWITCH

Refer to 

PCS-68, "Component Inspection"

.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Replace push-button ignition switch. Refer to 

PCS-133, "Removal and Installation"

.

4.

CHECK INTERMITTENT INCIDENT

Refer to 

GI-36, "Intermittent Incident"

.

>> INSPECTION END

Component Inspection

INFOID:0000000005240704

1.

CHECK PUSH-BUTTON IGNITION SWITCH 

1.

Turn ignition switch OFF.

2.

Disconnect push-button ignition switch connector.

3.

Check continuity between push-button ignition switch terminals.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace push-button ignition switch. Refer to 

PCS-133, "Removal and Installation"

.

Indicator

BCM

Ground

Continuity

Connector

Terminal

LOCK

M123

134

Not existed

ACC

M119

15

ON

M122

93

Terminal

Condition

Continuity

Push-button ignition switch

(+)

(–)

5

8

Push-button ignition 
switch position

LOCK

Existed

6

ACC

7

ON

8

5

LOCK

Not existed

6

ACC

7

ON

PCS

POWER DISTRIBUTION SYSTEM

PCS-69

< DTC/CIRCUIT DIAGNOSIS >

[POWER DISTRIBUTION SYSTEM]

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POWER DISTRIBUTION SYSTEM

Wiring Diagram - PDS (POWER DISTRIBUTION SYSTEM) -

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JCMWA4988GB