Nissan Primera P12. Instruction — part 26

TROUBLE DIAGNOSIS

ATC-97

C

D

E

F

G

H

I

K

L

M

A

B

ATC

Noise

EJS002Y6

SYMPTOM: Noise

INSPECTION FLOW

SHA331F

ATC-98

TROUBLE DIAGNOSIS

Self-diagnosis

EJS002Y7

Symptom: Self-diagnosis cannot be performed.

INSPECTION FLOW

*1

ATC-138, "Compressor Clutch
(Except F9Q Engine Models)"

*2

ATC-140, "Inspection"

*3

ATC-21, "Maintenance of Lubricant
Quantity in Compressor"

*4

ATC-56, "Operational Check"

*5

YD engine:

EM-13, "DRIVE BELTS"

F9Q engine:

EM-142, "DRIVE

BELTS"

*1

PG-3, "POWER SUPPLY ROUT-

ING"

*2

ATC-110, "Multiplex Communication
Circuit"

*3

ATC-56, "Operational Check"

*4

ATC-30, "SYMPTOM TABLE"

RJIA0806E

TROUBLE DIAGNOSIS

ATC-99

C

D

E

F

G

H

I

K

L

M

A

B

ATC

Memory Function

EJS002Y8

Symptom: Memory function does not operate.

INSPECTION FLOW

*1

PG-3, "POWER SUPPLY ROUTING"

*2

ATC-56, "Operational Check"

*3

ATC-48, "Self-diagnosis Function"

*4

ATC-59, "Power Supply and Ground
Circuit for Auto Amp."

RJIA0807E

ATC-100

TROUBLE DIAGNOSIS

Ambient Sensor Circuit

EJS002Y9

COMPONENT DESCRIPTION
Ambient Sensor

The ambient sensor is attached on the radiator core upper support. It
detects ambient temperature and converts it into a resistance value
which is then input into the auto amplifier.

AMBIENT TEMPERATURE INPUT PROCESS

The automatic amplifier includes a processing circuit for the ambient sensor input. However, when the temper-
ature detected by the ambient sensor increases quickly, the processing circuit retards the auto amp. function.
It only allows the auto amp. to recognize an ambient temperature increase of 0.33

°

C (0.6

°

F) per 100 seconds.

As an example, consider stopping for a cup of coffee after high speed driving. Although the actual ambient
temperature has not changed, the temperature detected by the ambient sensor will increase. This is because
the heat from the engine compartment can radiate to the front grille area, location of the ambient sensor.

DIAGNOSTIC PROCEDURE FOR AMBIENT SENSOR

SYMPTOM: Ambient sensor circuit is open or shorted. (21 or

−

21 is

indicated on auto amp. As a result of conducting Self-diagnosis
STEP 2.)

1.

CHECK VOLTAGE BETWEEN AMBIENT SENSOR AND GROUND

Disconnect ambient sensor harness connector.

OK or NG

OK

>> GO TO 2.

NG

>> GO TO 4.

RJIA2366E

RHA051GA

Terminal

Voltage

(+)

(

−

)

Ambient sen-

sor connector

Terminal No.

(Wire color)

E34

1 (W/G)

Ground

Approx. 5V

RJIA0681E