Nissan Tiida C11. Manual - part 1086

MWI-34

< COMPONENT DIAGNOSIS >

AMBIENT SENSOR SIGNAL CIRCUIT

AMBIENT SENSOR SIGNAL CIRCUIT

Description

INFOID:0000000001537467

The ambient sensor detects ambient temperature and converts it into a resistance value which is then input
into the combination meter.
NOTE:
On vehicles equipped with auto A/C, the ambient sensor signal is shared with the front air control. The combi-
nation meter is notified of the signal sharing via the auto A/C sense circuit.

Diagnosis Procedure

INFOID:0000000001537468

1.

CHECK AMBIENT SENSOR CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect combination meter connector and ambient sensor
connector.

3.

Check continuity between combination meter harness connector
M24 (A) terminal 19 and ambient sensor harness connector E60
(B) terminal 2.

4.

Check continuity between combination meter harness connector
M24 (A) terminal 19 and ground.

Is the inspection result normal? 

YES

>> GO TO 2

NO

>> Repair harness or connector.

2.

CHECK AMBIENT SENSOR GROUND CIRCUIT

1.

Check continuity between combination meter harness connector
M24 (A) terminal 20 and ambient sensor harness connector E60
(B) terminal 1.

2.

Check continuity between combination meter harness connector
M24 (A) terminal 20 and ground.

Is the inspection result normal?

YES

>> • With auto A/C: GO TO 3

• Without auto A/C: INSPECTION END

NO

>> Repair harness or connector.

3.

CHECK AUTO A/C SENSE SIGNAL

1.

Connect combination meter and ambient sensor connectors.

2.

Turn ignition switch ON.

3.

Check voltage between combination meter harness connector
M24 terminal 25 and ground.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> GO TO 4

19 – 2

: Continuity should exist.

19 – Ground

: Continuity should not exist.

AWNIA0169ZZ

20 – 1

: Continuity should exist.

20 – Ground

: Continuity should not exist.

AWNIA0170ZZ

25 – Ground

: 5V

AWNIA0221ZZ

MWI

AMBIENT SENSOR SIGNAL CIRCUIT

MWI-35

< COMPONENT DIAGNOSIS >

C

D

E

F

G

H

I

J

K

L

M

B

A

O

P

4.

CHECK AUTO A/C SENSE CIRCUIT

With NAVI
1.

Turn ignition switch OFF.

2.

Disconnect combination meter connector M24 and front air con-
trol connector M86.

3.

Check continuity between combination meter harness connector
M24 (A) terminal 25 and front air control harness connector M86
(B) terminal 1.

4.

Check continuity between combination meter harness connector
M24 (A) terminal 25 and ground.

Without NAVI
1.

Turn ignition switch OFF.

2.

Disconnect combination meter connector M24 and front air con-
trol connector M50.

3.

Check continuity between combination meter harness connector
M24 (A) terminal 25 and front air control harness connector M50
(B) terminal 3.

4.

Check continuity between combination meter harness connector
M24 (A) terminal 25 and ground.

Is the inspection result normal?

YES

>> Replace front air control. Refer to 

VTL-7, "Removal and Installation"

.

NO

>> Repair harness or connector.

Component Inspection

INFOID:0000000001537469

Refer to 

HAC-131, "Ambient Sensor Component Inspection"

 (without NAVI) or 

HAC-245, "Ambient Sensor

Component Inspection"

 (with NAVI).

25 – 1

: Continuity should exist.

25 – Ground

: Continuity should not exist.

25 – 3

: Continuity should exist.

25 – Ground

: Continuity should not exist.

AWNIA0222ZZ

AWNIA0223ZZ

MWI-36

< ECU DIAGNOSIS >

COMBINATION METER

ECU DIAGNOSIS

COMBINATION METER

Reference Value

INFOID:0000000001374706

TERMINAL LAYOUT

PHYSICAL VALUES

LKIA0698E

Ter-

mi-
nal 

No.

Wire

color

Item

Condition

Reference value (V)

(Approx.)

Ignition 

switch

Operation or condition

1

L

CAN-H

—

—

—

2

P

CAN-L

—

—

—

3

V

Vehicle speed signal output 
(2-pulse)

ON

Speedometer operated
[When vehicle speed is approx. 
40 km/h (25 MPH)] 

NOTE:
Maximum voltage may be 5V due to 
specifications (connected units).

4

O

Vehicle speed signal output 
(8-pulse)

ON

Speedometer operated
[When vehicle speed is approx. 
40 km/h (25 MPH)]

NOTE:
Maximum voltage may be 12V due to 
specifications (connected units).

6

BR

Fuel level sensor signal (+)

—

—

Refer to 

MWI-29, "Description"

.

7

BR

Air bag signal

ON

Air bag warning lamp ON

4

Air bag warning lamp OFF

0

8

P

O/D OFF switch

ON

O/D OFF switch pressed

0

O/D OFF switch released

Battery voltage

9

O

Seat belt buckle switch (driv-
er side)

ON

Unfastened (ON)

0

Fastened (OFF)

Battery voltage

10

SB

Parking Brake switch

ON

Parking brake applied

0

Parking brake released

Battery voltage

PKIC0642E

PKIC0643E

MWI

COMBINATION METER

MWI-37

< ECU DIAGNOSIS >

C

D

E

F

G

H

I

J

K

L

M

B

A

O

P

11

LG

Brake fluid level switch

ON

Brake fluid level low

0

Brake fluid level normal

Battery voltage

16

V

Steering switch (trip comput-
er) signal

ON

Press the steering switch (trip 
computer)

0

Other than the above

5

19

V

Ambient sensor signal

ON

—

20

BR

Ambient sensor ground

ON

—

0

21

B

Ground

—

—

0 

22

23

24

V

Fuel level sensor ground (-)

ON

—

0 

25

R

Auto A/C sense signal (with 
auto A/C)

ON

—

5V

27

G

Battery power supply

OFF

—

Battery voltage

28

SB

Ignition switch ON or START

ON

—

Battery voltage

30

G

Stop lamp switch

ON

Brake pedal depressed

Battery voltage

Brake pedal released

0

31

V

A/T N-range input (with A/T)

ON

Transmission gear selector lever 
in N position

Battery voltage

Transmission gear selector lever 
other than N position

0

32

W

A/T P-range input (with A/T)

ON

Transmission gear selector lever 
in P position

Battery voltage

Transmission gear selector lever 
other than P position

0

33

Y

A/T PN output (with A/T)

ON

Transmission gear selector lever 
in P or N position

0

Transmission gear selector lever 
other than P or N position

Battery voltage

35

BR

Engine coolant temperature 
signal output

ON

At idle [after warming up, approx. 
80

°

C (176

°

F)]

NOTE:
The waveforms vary depending 
on engine coolant temperature.

Ter-

mi-
nal 

No.

Wire

color

Item

Condition

Reference value (V)

(Approx.)

Ignition 

switch

Operation or condition

JSNIA0014GB

SKIB3651J