2003 NISSAN TEANA lock

ATC-90
TROUBLE DIAGNOSIS

Low-pressure Side Sometimes Becomes Negative
Low-pressure Side Becomes Negative
Gauge indication Refrigerant cycle Probable cause Corrective action
Low-pressure side sometimes
becomes negative.

Air conditioning system
does not function and does
not cyclically cool the com-
partment air.

The system constantly func-
tions for a certain period of
time after compressor is
stopped and restarted.Refrigerant does not dis-
charge cyclically.
↓
Moisture is frozen at expan-
sion valve outlet and inlet.
↓
Water is mixed with refriger-
ant.

Drain water from refrigerant
or replace refrigerant.

Replace liquid tank.
AC354A
Gauge indication Refrigerant cycle Probable cause Corrective action
Low-pressure side becomes nega-
tive.
Liquid tank or front/rear side of
expansion valve’s pipe is
frosted or wet with dew.High-pressure side is closed
and refrigerant does not flow.
↓
Expansion valve or liquid tank
is frosted.Leave the system at rest until
no frost is present. Start it
again to check whether or not
the malfunction is caused by
water or foreign particles.

If water is the cause, initially
cooling is okay. Then the
water freezes causing a
blockage. Drain water from
refrigerant or replace refrig-
erant.

If due to foreign particles,
remove expansion valve
and remove the particles
with dry and compressed air
(not shop air).

If either of the above meth-
ods cannot correct the mal-
function, replace expansion
valve.

Replace liquid tank.

Check lubricant for contami-
nation.
AC362A

ATC-96
TROUBLE DIAGNOSIS

Ambient Sensor CircuitBJS000GC
COMPONENT DESCRIPTION
Ambient Sensor
The ambient sensor is attached on the hood lock stay. It detects
ambient temperature and converts it into a resistance value which is
then input into the unified meter and A/C amp.
AMBIENT TEMPERATURE INPUT PROCESS
The unified meter and A/C amp. includes a processing circuit for the ambient sensor input. However, when the
temperature detected by the ambient sensor increases quickly, the processing circuit retards the unified meter
and A/C amp. function. It only allows the unified meter and A/C amp. to recognize an ambient temperature
increase of 0.33°C (0.6°F) per 100 seconds.
As an example, consider stopping for a few minutes after high speed driving. Although the actual ambient tem-
perature 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.
DIAGNOSIS PROCEDURE FOR AMBIENT SENSOR
SYMPTOM: Ambient sensor circuit is open or shorted. (21 or − 21 is
indicated on unified meter and A/C amp. as a result of performing
self-diagnosis STEP-2.)
1. CHECK VOLTAGE BETWEEN AMBIENT SENSOR AND GROUND
1. Disconnect ambient sensor connector.
2. Turn ignition switch ON.
3. Check voltage between ambient sensor harness connector
E257 terminal 1 and ground.
OK or NG
OK >> GO TO 2.
NG >> GO TO 4.
RJIA2779E
RJIA1461E
1 – Ground : Approx. 5 V
RJIA2017E

ATC-150
SERVICE DATA AND SPECIFICATIONS (SDS)

SERVICE DATA AND SPECIFICATIONS (SDS)PFP:00030
CompressorBJS000I4
LubricantBJS000I5
RefrigerantBJS000I6
Engine Idling SpeedBJS000I7
Refer to EC-45, "Idle Speed and Ignition Timing Check" (QR engine) or EC-387, "Idle Speed and Ignition Tim-
ing Check" (VQ engine).
Belt TensionBJS000I8
Refer to EM-14, "DRIVE BELTS" (QR engine) or EM-128, "DRIVE BELTS" (VQ engine).
ModelZEXEL VALEO CLIMATE CONTROL make
DKS-17D
Ty p eSwash plate
Displacement
cm
3 (cu in)/rev175 (10.7)
Cylinder bore × stroke
mm (in)30.5 (1.20) × 24.0 (0.94)
Direction of rotationClockwise (viewed from drive end)
Drive beltPoly V
ModelZEXEL VALEO CLIMATE CONTROL make
DKS-17D
NameNissan A/C System Oil Type S (DH-PS)
Capacity
m (lmp fl oz)Total in system 150 (5.3)
Compressor (Service part) charg-
ing amount150 (5.3)
Ty p eHFC-134a (R-134a)
Capacity
kg (lb)0.5 (1.1)

AV-14
AUDIO (WITH INTEGRATED DISPLAY SYSTEM)

Symptom ChartBKS0020Q

The majority of the audio malfunctions are the result of outside causes (bad CD, electromagnetic interfer-
ence, etc.). Check the symptoms below to diagnose the malfunction.

The vehicle itself can be a source of noise if noise prevention parts or electrical equipment is malfunction-
ing. Check if noise is caused and/or changed by engine speed, ignition switch turned to each position, and
operation of each piece of electrical equipment, and then determine the cause.

CD-R is not guaranteed to play because they can contain compressed audio (MP3, WMA) or could be
incorrectly mastered by the customer on a computer.

Check if the CDs carry the Compact Disc Logo. If not, the disc is not mastered to the “red book” Compact
Disc Standard and may not play.

Make sure that other operation except audio system can be performed with A/C and AV switch. If these
operations are inoperative with A/C and AV switch, refer to AV- 5 8 , "
Unable to Operate System with A/C
and AV Switch" .
NOTE:
Noise resulting from variations in field strength, such as fading noise and multi-path noise, or external noise
from trains and other sources. It is not a malfunction.

Fading noise: This noise occurs because of variations in the field strength in a narrow range due to moun-
tains or buildings blocking the signal.

Multi-path noise: This noise results from a time difference between the broadcast waves directly from the
station arriving at the antenna and the waves reflected by mountains or buildings.
Symptom Possible malfunction location
Audio system does not work properly.

Audio unit power supply circuit

Communication signal circuit between audio unit and display unit

A/C and AV switch

Audio unit
No sound can be heard from all speakers. Audio unit
No sound can be heard from one or several speakers.

Audio signal circuit between audio unit and speaker

Speaker

Tw e e te r

Audio unit
No sound can be heard from radio or noise is caught.

Antenna amp. ON signal circuit

Antenna feeder

Rear window antenna

Antenna amp.

Audio unit

AUDIO (WITH INTEGRATED COLOR DISPLAY SYSTEM)
AV-33
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AV

Symptom ChartBKS0028V

The majority of the audio malfunctions are the result of outside causes (bad CD, electromagnetic interfer-
ence, etc.). Check the symptoms below to diagnose the malfunction.

The vehicle itself can be a source of noise if noise prevention parts or electrical equipment is malfunction-
ing. Check if noise is caused and/or changed by engine speed, ignition switch turned to each position, and
operation of each piece of electrical equipment, and then determine the cause.

CD-R is not guaranteed to play because they can contain compressed audio (MP3, WMA) or could be
incorrectly mastered by the customer on a computer.

Check if the CDs carry the Compact Disc Logo. If not, the disc is not mastered to the “red book” Compact
Disc Standard and may not play.

Make sure that other operation except audio system can be performed with A/C and AV switch. If these
operations are inoperative with A/C and AV switch, refer to AV- 9 7 , "
Unable to Operate System with A/C
and AV Switch" .
NOTE:
Noise resulting from variations in field strength, such as fading noise and multi-path noise, or external noise
from trains and other sources. It is not a malfunction.

Fading noise: This noise occurs because of variations in the field strength in a narrow range due to moun-
tains or buildings blocking the signal.

Multi-path noise: This noise results from a time difference between the broadcast waves directly from the
station arriving at the antenna and the waves reflected by mountains or buildings.
Symptom Possible malfunction location
Audio system does not work properly.

Audio unit power supply circuit

Communication signal circuit between audio unit and display unit

A/C and AV switch

Audio unit
CD auto changer does not work properly.

CD auto changer power supply circuit

Communication signal circuit between audio unit and CD auto changer

CD auto changer

Audio unit
No sound can be heard from all speakers. Audio unit
No sound can be heard from one or several speakers.

Audio signal circuit between audio unit and speaker

Speaker

Tweeter

Audio unit
No sound can be heard from radio or noise is caught.

Antenna amp. ON signal circuit

Antenna feeder

Rear window antenna

Antenna amp.

Audio unit
Unable to operate audio system with rear audio control
switch.

Remote control signal circuit between rear audio control switch and A/C
and AV switch

Rear audio control switch

A/C and AV switch

INTEGRATED DISPLAY SYSTEM
AV-55
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AV

On Board Self-Diagnosis FunctionBKS00228
DESCRIPTION
When performing self-diagnosis mode, the following menu is displayed.
DIAGNOSIS ITEM
Self-Diagnosis ModeBKS00229
OPERATION PROCEDURES
1. Start the engine.
2. Turn the audio system OFF.
3. While pressing the “MUTE” button, turn the volume control dial
clockwise or counterclockwise for 30 clicks or more. (When the
self-diagnosis mode is started, a short beep will be heard.)
4. Initial diagnosis screen is displayed.

Perform diagnosis according to the audio preset No. “1, 2, 3,
4”.
FULL BLINK
All display unit segments turn ON.
Diagnosis itemFunction
switchDescription
FULL BLINK 1 All display unit segments turn ON.
HVAC DIAG 2 Self-diagnosis of air conditioner system is performed.
VERSION 3 Software version of each unit is displayed.
DIAG END 4 Exit from self-diagnosis mode and return to normal screen.
SKIB0828E
SKIA7023J
SKIA7024J

AV-86
INTEGRATED COLOR DISPLAY SYSTEM

OPERATION PROCEDURE
1. Start the engine.
2. Turn the audio system OFF.
3. While pressing the “MUTE” button, turn the volume control dial
clockwise or counterclockwise for 30 clicks or more. (When the
self-diagnosis mode is started, a short beep will be heard.)
4. The initial diagnosis screen is displayed.
5. The item of “DCU Failure Diagnosis” and “DCU Confirmation”
can be selected.

Select each item with “FM” button and “AM” button of A/C and
AV switch, and then determine by “CD·CHG” button.

When pressing “3 RANDOM” button of A/C and AV switch,
return to the previous screen.
SKIB8825E
SKIB0829E
SKIB1985E

BCM (BODY CONTROL MODULE)
BCS-7
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BCS

BCM STATUS CONTROL
BCM changes its status depending on the operation status in order to save power consumption.
1. CAN communication status

With ignition switch ON, CAN communicates with other control units normally.

Control by BCM is being operated properly.

When ignition switch is OFF, switching to sleep mode is possible.

Even when ignition switch is OFF, if CAN communication with IPDM E/R, Intelligent Key unit or unified
meter and A/C amp. is active, CAN communication status is active.
2. Sleep transient status

This status shuts down CAN communication when ignition switch is turned OFF.

It transmits sleep request signal to IPDM E/R, Intelligent Key unit, driver seat control unit and unified
meter and A/C amp.

2 seconds after CAN communication of all control units stops, sleep transient status switches to CAN
communication inactive status.
3. CAN communication inactive status

With ignition switch OFF, CAN communication is not active.

With ignition switch OFF, control performed only by BCM is active.

When all controls that BCM performs stop, CAN communication inactive status switches to sleep sta-
tus.
4. Sleep status

BCM is activated with low power mode.

CAN communication is not active.

When CAN communication operation is detected, it switches to CAN communication status.

When a state of the following switches changes, it switches to CAN communication state.
–Ignition switch (ACC, ON)
–Key switch
–Ignition knob switch
–Hazard switch
–Door lock/unlock switch
–Front door switch (driver side, passenger side)
–Rear door switch (RH, LH)
–Trunk lid opener switch
–Trunk room lamp switch
–Combination switch (passing, lighting switch 1ST position, front fog lamp)
–Remote keyless entry receiver (lock/unlock signal)

When control performed only by BCM is required by switch, it shifts to CAN communication inactive
mode.

Status of combination switch reading function is changed.