Infiniti M (2012 year). Manual - part 5

 

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Infiniti M (2012 year). Manual - part 5

 

 

PCS

B26F2 IGNITION RELAY

PCS-67

< DTC/CIRCUIT DIAGNOSIS >

[POWER DISTRIBUTION SYSTEM]

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B26F2 IGNITION RELAY

DTC Logic

INFOID:0000000006887750

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.

PERFORM DTC CONFIRMATION PROCEDURE

1.

Turn ignition switch ON under the following conditions, and wait for 2 seconds or more.

-

Selector lever is in the P or N position

-

Do not depress brake pedal

2.

Check “Self-diagnosis result” with CONSULT. 

Is DTC detected?

YES

>> Go to 

PCS-67, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000006887751

1.

CHECK IPDM E/R SELF-DIAGNOSTIC RESULT

1.

Turn ignition switch ON.

2.

Erase the DTC of IPDM E/R.

3.

Turn ignition switch OFF.

4.

Turn ignition switch ON and check the DTC again.

Is DTC detected?

YES

>> Repair or replace the malfunctioning part. Refer to 

PCS-25, "DTC Index"

.

NO

>> GO TO 2.

2.

CHECK IGNITION RELAY (IPDM E/R) CONTROL SIGNAL

1.

Turn ignition switch OFF.

2.

Check voltage between IPDM E/R harness connector and ground.

Is the inspection result normal?

YES

>> Replace IPDM E/R.

NO

>> GO TO 3.

3.

CHECK IGNITION RELAY (IPDM E/R) CONTROL SIGNAL CIRCUIT - 1

1.

Disconnect BCM and IPDM E/R connectors.

2.

Check continuity between IPDM E/R harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 4.

DTC No.

Trouble diagnosis 

name

DTC detecting condition

Possible cause

B26F2

IGN RELAY ON

BCM transmits the ignition relay control signal 
(OFF: 12 V) or ignition switch ON signal (OFF) 
(CAN), but does not receives ignition switch 
ON signal (OFF) (CAN) from IPDM E/R.

• Harness or connectors

(ignition relay circuit is short)

• BCM
• IPDM E/R

(+)

(–)

Condition

Voltage (V)

(Approx.)

IPDM E/R

Connector

Terminal

E5

18

Ground

Ignition switch

OFF or ACC

12

IPDM E/R

Ground

Continuity

Connector

Terminal

E5

18

Not existed

2012 M

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PCS-68

< DTC/CIRCUIT DIAGNOSIS >

[POWER DISTRIBUTION SYSTEM]

B26F2 IGNITION RELAY

NO

>> Repair or replace harness.

4.

CHECK IGNITION RELAY (IPDM E/R) CONTROL SIGNAL CIRCUIT - 2

1.

Connect IPDM E/R connectors.

2.

Check voltage between IPDM E/R harness connector and ground.

Is the inspection result normal?

YES

>> Replace BCM. Refer to 

BCS-82, "Removal and Installation"

.

NO

>> Replace IPDM E/R.

(+)

(–)

Condition

Voltage (V)

(Approx.)

IPDM E/R

Connector

Terminal

E5

18

Ground

Ignition switch

OFF or ACC

12

2012 M

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PCS

B26F6 BCM

PCS-69

< DTC/CIRCUIT DIAGNOSIS >

[POWER DISTRIBUTION SYSTEM]

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B26F6 BCM

DTC Logic

INFOID:0000000006887752

DTC DETECTION LOGIC

NOTE:
• If DTC B26F6 is displayed with DTC U1000, first perform the trouble diagnosis for DTC U1000. Refer to

BCS-70, "DTC Logic"

.

• If DTC B26F6 is displayed with DTC U1010, first perform the trouble diagnosis for DTC U1010. Refer to

BCS-71, "DTC Logic"

.

DTC CONFIRMATION PROCEDURE

1.

PERFORM DTC CONFIRMATION PROCEDURE

1.

Turn ignition switch ON under the following conditions, and wait for 1 second or more.

-

Selector lever is in the P or N position

-

Do not depress brake pedal

2.

Check “Self-diagnosis result” of BCM with CONSULT. 

Is DTC detected?

YES

>> Go to 

PCS-69, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000006887753

1.

INSPECTION START

1.

Turn ignition switch ON.

2.

Select “Self-diagnosis result” of BCM with CONSULT.

3.

Touch “ERASE”.

4.

Perform DTC Confirmation Procedure.
See 

PCS-69, "DTC Logic"

.

Is DTC detected?

YES

>> Replace BCM. Refer to 

BCS-82, "Removal and Installation"

NO

>> INSPECTION END

DTC No.

Trouble diagnosis 

name

DTC detecting condition

Possible cause

B26F6

BCM

Ignition relay ON signal is not transmitted from IPDM E/
R when BCM turns ignition relay ON.

BCM

2012 M

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PCS-70

< DTC/CIRCUIT DIAGNOSIS >

[POWER DISTRIBUTION SYSTEM]

PUSH-BUTTON IGNITION SWITCH

PUSH-BUTTON IGNITION SWITCH

Component Function Check

INFOID:0000000006887754

1.

CHECK FUNCTION

1.

Select “PUSH SW” in “Data Monitor” mode with CONSULT. 

2.

Check the push-button ignition switch signal under the following conditions.

Is the indication normal?

YES

>> INSPECTION END.

NO

>> Go to  

PCS-70, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000006887755

1.

CHECK PUSH-BUTTON IGNITION SWITCH OUTPUT SIGNAL 1

1.

Turn ignition switch OFF.

2.

Disconnect push-button ignition switch connector and IPDM E/R connector.

3.

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

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> GO TO 2.

2.

CHECK PUSH-BUTTON IGNITION SWITCH CIRCUIT 1

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.

Is the inspection result normal?

YES

>> Replace BCM. Refer to 

BCS-82, "Removal and Installation"

.

NO

>> Repair or replace harness.

3.

CHECK PUSH-BUTTON IGNITION SWITCH OUTPUT SIGNAL 2

Check voltage between IPDM E/R harness connector and ground.

Test item

Condition

Status

PUSH SW

Push-button ignition switch is pressed

ON

Push-button ignition switch is not pressed

OFF

(+)

(–)

Voltage (V)

(Approx.)

Push-button ignition switch

Connector

Terminal

M50

4

Ground

Battery voltage

BCM

Push-button ignition switch

Continuity

Connector

Terminal

Connector

Terminal

M123

100

M50

4

Existed

BCM

Ground

Continuity

Connector

Terminal

M123

100

Not existed

2012 M

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PCS

PUSH-BUTTON IGNITION SWITCH

PCS-71

< DTC/CIRCUIT DIAGNOSIS >

[POWER DISTRIBUTION SYSTEM]

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Is the inspection result normal?

YES

>> GO TO 5.

NO

>> GO TO 4.

4.

CHECK PUSH-BUTTON IGNITION SWITCH CIRCUIT 2

1.

Disconnect BCM connector.

2.

Check continuity between IPDM E/R harness connector and push-button ignition switch harness connec-
tor.

3.

Check continuity between IPDM E/R harness connector and ground.

Is the inspection result normal?

YES

>> Replace IPDM E/R.

NO

>> Repair or replace harness.

5.

CHECK PUSH-BUTTON IGNITION SWITCH GROUND CIRCUIT 

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

Is the inspection result normal?

YES

>> GO TO 6.

NO

>> Repair or replace harness.

6.

CHECK PUSH-BUTTON IGNITION SWITCH

Refer to 

PCS-71, "Component Inspection"

.

Is the inspection result normal?

YES

>> GO TO 7.

NO

>> Replace push-button ignition switch.

7.

CHECK INTERMITTENT INCIDENT

Refer to 

GI-44, "Intermittent Incident"

.

>> INSPECTION END

Component Inspection

INFOID:0000000006887756

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.

(+)

(–)

Voltage (V)

(Approx.)

IPDM E/R

Connector

Terminal

E5

30

Ground

Battery voltage

IPDM E/R

Push-button ignition switch

Continuity

Connector

Terminal

Connector

Terminal

E5

30

M50

4

Existed

IPDM E/R

Ground

Continuity

Connector

Terminal

E5

30

Not existed

Push-button ignition switch

Ground

Continuity

Connector

Terminal

M50

1

Existed

2012 M

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PCS-72

< DTC/CIRCUIT DIAGNOSIS >

[POWER DISTRIBUTION SYSTEM]

PUSH-BUTTON IGNITION SWITCH

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace push-button ignition switch.

Push-button ignition switch

Condition

Continuity

Terminal

4

1

Pressed

Existed

Not pressed

Not existed

2012 M

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PCS

PUSH-BUTTON IGNITION SWITCH POSITION INDICATOR

PCS-73

< DTC/CIRCUIT DIAGNOSIS >

[POWER DISTRIBUTION SYSTEM]

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PUSH-BUTTON IGNITION SWITCH POSITION INDICATOR

Description

INFOID:0000000006887757

Push-button ignition switch 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:0000000006887758

1.

CHECK FUNCTION

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

Is the inspection result normal?

YES

>> INSPECTION END.

NO

>> Refer to 

PCS-73, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000006887759

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 normal?

YES

>> GO TO 2.

NO-1

>> Check 10 A fuse [No.9, located in fuse block (J/B)].

NO-2

>> Check harness for open or short between push-button ignition switch and fuse.

2.

CHECK BCM INPUT

1.

Connect push-button ignition switch connector.

2.

Disconnect BCM connector.

3.

Check voltage between BCM connector and ground.

Is the inspection normal?

YES

>> Replace BCM. Refer to 

BCS-82, "Removal and Installation"

.

NO

>> GO TO 3.

3.

CHECK PUSH-BUTTON IGNITION SWITCH CIRCUIT

1.

Disconnect push-button ignition switch connector.

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

(+)

(–)

Voltage (V)

(Approx.)

BCM

Connector

Terminal

M123

73

Ground

Battery voltage

91

109

2012 M

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PCS-74

< DTC/CIRCUIT DIAGNOSIS >

[POWER DISTRIBUTION SYSTEM]

PUSH-BUTTON IGNITION SWITCH POSITION INDICATOR

2.

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

3.

Check continuity between BCM harness connector and ground.

Is the inspection normal?

YES

>> Replace push-button ignition switch.

NO

>> Repair or replace harness.

Indicator

BCM

Push-button ignition switch

Continuity

Connector

Terminal

Connector

Terminal

LOCK

M123

91

M50

5

Existed

ACC

109

6

ON

73

7

Indicator

BCM

Ground

Continuity

Connector

Terminal

LOCK

M123

91

Not existed

ACC

109

ON

73

2012 M

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PCS

PUSH-BUTTON IGNITION SWITCH DOES NOT OPERATE

PCS-75

< SYMPTOM DIAGNOSIS >

[POWER DISTRIBUTION SYSTEM]

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SYMPTOM DIAGNOSIS

PUSH-BUTTON IGNITION SWITCH DOES NOT OPERATE

Description

INFOID:0000000006887760

Check that vehicle is under the condition shown in “Conditions of vehicle” before starting diagnosis, and check
each symptom.
NOTE:
The engine start function, door lock function, power distribution system, and NATS-IVIS/NVIS in the Intelligent
Key system are closely related to each other regarding control. The vehicle security function can operate only
when the door lock and power distribution system are operating normally.

Conditions of Vehicle (Operating Conditions)

• “ENGINE START BY I-KEY” in “WORK SUPPORT” is ON when setting on CONSULT.
• One or more of Intelligent Keys with registered Intelligent Key ID is in the vehicle.

Diagnosis Procedure

INFOID:0000000006887761

1.

PERFORM WORK SUPPORT

Perform “INSIDE ANT DIAGNOSIS” on Work Support of “INTELLIGENT KEY”.
Refer to 

DLK-32, "DOOR LOCK : CONSULT Function (BCM - DOOR LOCK)"

.

>> GO TO 2.

2.

PERFORM SELF-DIAGNOSIS RESULT

Perform Self-Diagnosis Result of “BCM”.

Is DTC detected?

YES

>> Refer to 

BCS-57, "DTC Index"

.

NO

>> GO TO 3.

3.

CHECK PUSH-BUTTON IGNITION SWITCH

Check push-button ignition switch.
Refer to 

PCS-70, "Component Function Check"

.

Is the operation normal?

YES

>> GO TO 4.

NO

>> Repair or replace malfunctioning parts.

4.

CONFIRM THE OPERATION

Confirm the operation again.

Is the inspection normal?

YES

>> Check intermittent incident. Refer to 

GI-44, "Intermittent Incident"

.

NO

>> GO TO 1.

2012 M

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PCS-76

< SYMPTOM DIAGNOSIS >

[POWER DISTRIBUTION SYSTEM]

PUSH-BUTTON IGNITION SWITCH POSITION INDICATOR DOES NOT ILLUMI-

NATE

PUSH-BUTTON IGNITION SWITCH POSITION INDICATOR DOES NOT IL-
LUMINATE

Description

INFOID:0000000006887762

• Before performing the diagnosis in the following table, check “Work Flow”. Refer to 

PCS-52, "Work Flow"

.

• Check that vehicle is under the condition shown in “Conditions of vehicle” before starting diagnosis, and

check each symptom.

Conditions of Vehicle (Operating Conditions)

• “ENGINE START BY I-KEY” in “WORK SUPPORT” is ON when setting on CONSULT.
• One or more of Intelligent Keys with registered Intelligent Key ID is in the vehicle.

Diagnosis Procedure

INFOID:0000000006887763

1.

CHECK PUSH-BUTTON IGNITION SWITCH INDICATOR

Check push-button ignition switch indicator.
Refer to 

PCS-73, "Component Function Check"

.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair or replace the malfunctioning parts.

2.

CONFIRM THE OPERATION

Confirm the operation again.

Is the result normal?

YES

>> Check intermittent incident. Refer to 

GI-44, "Intermittent Incident"

.

NO

>> GO TO 1.

2012 M

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PCS

PUSH-BUTTON IGNITION SWITCH

PCS-77

< REMOVAL AND INSTALLATION >

[POWER DISTRIBUTION SYSTEM]

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REMOVAL AND INSTALLATION

PUSH-BUTTON IGNITION SWITCH

Exploded View

INFOID:0000000007215655

Refer to 

IP-12, "Exploded View"

.

Removal and Installation

INFOID:0000000007215656

REMOVAL

1.

Remove front body side welt. Refer to 

INT-35, "BODY SIDE WELT : Removal and Installation"

.

2.

Remove instrument side finisher LH. Refer to 

IP-13, "Removal and Installation"

.

3.

Remove instrument lower panel LH. Refer to 

IP-13, "Removal and Installation"

.

4.

Disconnect NATS antenna amp. connector and push-button ignition switch connector.

5.

Disengage the NATS antenna amp. fixing pawls while pushing
NATS antenna amp. from its back side, so that NATS antenna
amp. and push-button ignition switch are lifted up from instru-
ment panel assembly.

6.

While pushing the push-button ignition switch from its back side,
disengage the push-button ignition switch fixing pawls using a
minus driver etc., and then remove push-button ignition switch.

INSTALLATION

Install in the reverse order of removal.

: Pawl

JMKIA8262ZZ

: Pawl

JMKIA8263ZZ

2012 M

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