Nissan Qashqai J11. Manual - part 1850

BCS-126

< DTC/CIRCUIT DIAGNOSIS >

COMBINATION SWITCH OUTPUT CIRCUIT

COMBINATION SWITCH OUTPUT CIRCUIT

Diagnosis Procedure

INFOID:0000000010378039

1.

CHECK OUTPUT 1 - 5 CIRCUIT FOR OPEN

1.

Turn ignition switch OFF.

2.

Disconnect BCM and combination switch connectors.

3.

Check continuity between BCM harness connector and combination switch harness connector.

Does continuity exist?

YES

>> GO TO 2.

NO

>> Repair harnesses or connectors.

2.

CHECK OUTPUT 1 - 5 CIRCUIT FOR SHORT

Check for continuity between BCM harness connector and ground.

Does continuity exist?

YES

>> Repair harnesses or connectors.

NO

>> GO TO 3.

3.

CHECK COMBINATION SWITCH INTERNAL CIRCUIT

1.

Connect BCM connector.

2.

Turn ON any switch in the system that is malfunctioning.

3.

Check voltage between BCM harness connector and ground.
NOTE:
Check that the combination switch outputs a signal from combination switch input system.

Is the measurement value normal?

YES

>> Replace BCM. Refer to 

BCS-132, "Removal and Installation"

.

System

BCM

Combination switch

Continuity

Connector

Terminal

Connector

Terminal

OUTPUT 1

M69

85

M20

7

Existed

OUTPUT 2

84

15

OUTPUT 3

86

10

OUTPUT 4

87

5

OUTPUT 5

M70

74

2

System

BCM

Ground

Continuity

Connector

Terminal

OUTPUT 1

M69

85

Not existed

OUTPUT 2

84

OUTPUT 3

86

OUTPUT 4

87

OUTPUT 5

M70

74

System

(+)

(

−

)

Voltage

(Approx.)

BCM

Connector

Terminal

OUTPUT 1

M69

85

Ground

Refer to 

BCS-64, "Reference Value"

.

OUTPUT 2

84

OUTPUT 3

86

OUTPUT 4

87

OUTPUT 5

M70

74

BCS

COMBINATION SWITCH OUTPUT CIRCUIT

BCS-127

< DTC/CIRCUIT DIAGNOSIS >

C

D

E

F

G

H

I

J

K

L

B

A

O

P

N

NO

>> Replace combination switch. Refer to 

BCS-133, "Removal and Installation"

.

BCS-128

< DTC/CIRCUIT DIAGNOSIS >

COMBINATION SWITCH INPUT CIRCUIT

COMBINATION SWITCH INPUT CIRCUIT

Diagnosis Procedure

INFOID:0000000010378040

1.

CHECK INPUT 1 - 5 CIRCUIT FOR OPEN

1.

Turn ignition switch OFF.

2.

Disconnect BCM and combination switch connectors.

3.

Check continuity between BCM harness connector and combination switch harness connector.

Does continuity exist?

YES

>> GO TO 2.

NO

>> Repair harnesses or connectors.

2.

CHECK INPUT 1 - 5 CIRCUIT FOR SHORT

Check for continuity between BCM harness connector and ground.

Does continuity exist?

YES

>> Repair harnesses or connectors.

NO

>> GO TO 3.

3.

CHECK BCM OUTPUT SIGNAL

1.

Connect BCM connector.

2.

Check voltage between BCM harness connector and ground.

Is the measurement value normal?

Yes

>> GO TO 4.

No

>> Replace BCM. Refer to 

BCS-132, "Removal and Installation"

.

4.

CHECK BCM INPUT SIGNAL

System

BCM

Combination switch

Continuity

Connector

Terminal

Connector

Terminal

INPUT 1

M70

78

M20

1

Existed

INPUT 2

79

3

INPUT 3

76

4

INPUT 4

77

6

INPUT 5

73

8

System

BCM

Ground

Continuity

Connector

Terminal

INPUT 1

M70

78

Not existed

INPUT 2

79

INPUT 3

76

INPUT 4

77

INPUT 5

73

System

(+)

(

−

)

Voltage

(Approx.)

BCM

Connector

Terminal

INPUT 1

M70

78

Ground

Refer to 

BCS-64, "Refer-

ence Value"

.

INPUT 2

79

INPUT 3

76

INPUT 4

77

INPUT 5

73

BCS

COMBINATION SWITCH INPUT CIRCUIT

BCS-129

< DTC/CIRCUIT DIAGNOSIS >

C

D

E

F

G

H

I

J

K

L

B

A

O

P

N

1.

Connect combination switch connector.

2.

Turn ON any switch in the system that is malfunction.

3.

Check voltage between BCM harness connector and ground.

Is the measurement value normal?

Yes

>> Replace BCM. Refer to 

BCS-132, "Removal and Installation"

.

No

>> Replace combination switch. Refer to 

BCS-133, "Removal and Installation"

.

System

(+)

(

−

)

Voltage

(Approx.)

BCM

Connector

Terminal

INPUT 1

M70

78

Ground

Refer to 

BCS-64, "Refer-

ence Value"

.

INPUT 2

79

INPUT 3

76

INPUT 4

77

INPUT 5

73