Nissan Qashqai J11. Manual - part 1960

PCS-112

< DTC/CIRCUIT DIAGNOSIS >

[POWER DISTRIBUTION SYSTEM]

B26F2 IGNITION RELAY

B26F2 IGNITION RELAY

DTC Description

INFOID:0000000010434066

DTC DETECTION LOGIC

POSSIBLE CAUSE

• Harness or connectors

(Ignition relay circuit is short)

• BCM
• IPDM E/R
• Fuse block (J/B)

FAIL-SAFE

Inhibit engine cranking

DTC CONFIRMATION PROCEDURE

1.

PERFORM DTC CONFIRMATION PROCEDURE

1.

Turn ignition switch ON, and wait for 2 seconds or more.

2.

Check “Self-diagnosis result” with CONSULT. 

Is DTC detected?

YES

>> Refer to 

PCS-112, "Diagnosis Procedure"

.

NO-1

>> To check malfunction symptom before repair: Refer to 

GI-41, "Intermittent Incident"

.

NO-2

>> Confirmation after repair: INSPECTION END

Diagnosis Procedure

INFOID:0000000010519147

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-37, "DTC Index"

.

NO

>> GO TO 2.

2.

CHECK IGNITION RELAY CONTROL SIGNAL

1.

Turn ignition switch OFF.

2.

Check voltage between BCM harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> GO TO 3.

3.

CHECK IGNITION RELAY CONTROL SIGNAL CIRCUIT

DTC No.

CONSULT screen items

(Trouble diagnosis content)

DTC detecting condition

B26F2-00

IGN RELAY ON
(Ignition 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.

(+)

(–)

Condition

Voltage

BCM

Connector

Terminal

M70

67

Ground

Ignition switch

ON

0 – 0.5 V

OFF

9 - 16 V

PCS

B26F2 IGNITION RELAY

PCS-113

< DTC/CIRCUIT DIAGNOSIS >

[POWER DISTRIBUTION SYSTEM]

C

D

E

F

G

H

I

J

K

L

B

A

O

P

N

1.

Turn ignition switch OFF.

2.

Disconnect BCM and fuse block (J/B) connectors.

3.

Check continuity between BCM harness connector and fuse block (J/B) harness connector.

4.

Check continuity between BCM harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Repair or replace harness.

4.

CHECK IGNITION RELAY

Check ignition relay. Refer to 

PCS-111, "Component Inspection"

.

Is the inspection result normal?

YES

>> Replace fuse block (J/B).

NO

>> Replace ignition relay.

5.

REPLACE IPDM E/R

1.

Replace IPDM E/R. Refer to 

PCS-68, "Removal and Installation"

.

2.

Turn ignition switch ON and check the DTC again.

Is DTC "B26F2-00" displayed?

YES

>> Replace BCM. Refer to 

BCS-135, "Removal and Installation"

.

NO

>> INSPECTION END.

Component Inspection

INFOID:0000000010508617

1.

CHECK IGNITION RELAY

1.

Turn ignition switch OFF.

2.

Remove ignition relay.

3.

Check continuity between ignition relay terminals.

Is the inspection result normal?

YES

>> INSPECTION END.

NO

>> Replace ignition relay.

BCM

Fuse block (J/B)

Continuity

Connector

Terminal

Connector

Terminal

M70

67

M76

3B

Existed

BCM

—

Continuity

Connector

Terminal

M70

67

Ground

Not existed

Terminal

Condition

Continuity

Ignition relay

12 V direct current supply between termi-

nals  

and .

Existed

No current supply

Not existed

SEF497Y

PCS-114

< DTC/CIRCUIT DIAGNOSIS >

[POWER DISTRIBUTION SYSTEM]

ACCESSORY RELAY

ACCESSORY RELAY

Diagnosis Procedure

INFOID:0000000010500760

1.

CHECK ACCESSORY RELAY POWER SUPPLY

1.

Turn ignition switch OFF.

2.

Remove accessory relay.

3.

Check voltage between accessory relay connector and ground.

Is the inspection normal?

YES

>> GO TO 3.

NO

>> GO TO2.

2.

CHECK ACCESSORY RELAY POWER SUPPLY CIRCUIT 1

1.

Disconnect BCM connector.

2.

Check continuity between BCM harness connector and accessory relay connector.

3.

Check continuity between accessory relay connector and ground.

Is the inspection normal?

YES

>> Replace BCM. Refer to 

BCS-132, "Removal and Installation"

.

NO

>> Repair or replace harness.

3.

CHECK ACCESSORY RELAY GROUND CIRCUIT

1.

Turn ignition switch OFF.

2.

Check continuity between accessory relay connector and ground.

Is the inspection normal?

YES

>> GO TO 4.

NO

>> Repair or replace harness.

4.

CHECK ACCESSORY RELAY POWER SUPPLY CIRCUIT 2

Check voltage between accessory relay connector and ground.

Is the inspection normal?

YES

>> GO TO 5.

NO

>> Repair or replace harness.

(+)

(–)

Voltage

Fuse block (J/B)

Accessory relay (Upstream side of relay 

excitation coil circuit)

Ground

Battery voltage

Fuse block (J/B)

BCM

Continuity

Connector

Terminal

Accessory relay (Downstream side of relay exci-

tation coil circuit)

M70

65

Existed

Fuse block (J/B)

—

Continuity

Accessory relay (Downstream side of relay excitation coil cir-

cuit

Ground

Not existed

Fuse block (J/B)

—

Continuity

Accessory relay (Downstream side of relay excitation coil cir-

cuit)

Ground

Existed

Fuse block (J/B)

—

Voltage

Accessory relay (Upstream side of relay contact circuit)

Ground

Battery voltage

PCS

ACCESSORY RELAY

PCS-115

< DTC/CIRCUIT DIAGNOSIS >

[POWER DISTRIBUTION SYSTEM]

C

D

E

F

G

H

I

J

K

L

B

A

O

P

N

5.

CHECK ACCESSORY RELAY

Check accessory relay. Refer to 

PCS-115, "Component Inspection"

.

Is the inspection normal?

YES

>> INSPECTION END.

NO

>> Replace accessory relay.

Component Inspection

INFOID:0000000010508618

1.

CHECK ACCESSORY RELAY

1.

Turn ignition switch OFF.

2.

Remove accessory relay.

3.

Check continuity between accessory relay terminals.

Is the inspection result normal?

YES

>> INSPECTION END.

NO

>> Replace accessory relay.

Terminal

Condition

Continuity

Accessory relay

12 V direct current supply between termi-

nals  

and .

Existed

No current supply

Not existed

SEF497Y