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Nissan Sentra. Manual - part 545

HAC-28

< SYSTEM DESCRIPTION >

[AUTOMATIC AIR CONDITIONER]

DIAGNOSIS SYSTEM (BCM)

DIAGNOSIS SYSTEM (BCM)

COMMON ITEM
COMMON ITEM : CONSULT Function (BCM - COMMON ITEM)

INFOID:0000000010291107

APPLICATION ITEM

CONSULT performs the following functions via CAN communication with BCM.

SYSTEM APPLICATION

BCM can perform the following functions.

Direct Diagnostic Mode

Description

ECU identification

The BCM part number is displayed.

Self Diagnostic Result

The BCM self diagnostic results are displayed.

Data Monitor

The BCM input/output data is displayed in real time.

Active Test

The BCM activates outputs to test components.

Work support

The settings for BCM functions can be changed.

Configuration

• The vehicle specification can be read and saved.
• The vehicle specification can be written when replacing BCM.

CAN DIAG SUPPORT MNTR

The result of transmit/receive diagnosis of CAN communication is displayed.

System

Sub System

Direct Diagnostic Mode

ECU id

tif

ica

tion

lf Di

Res

Dat

ito

Acti

est

ort

CAN DIAG SUP

T MNTR

Door lock

DOOR LOCK

Rear window defogger

REAR DEFOGGER

Warning chime

BUZZER

Interior room lamp timer

INT LAMP

Exterior lamp

HEAD LAMP

Wiper and washer

WIPER

Turn signal and hazard warning lamps FLASHER

Air conditioner

AIR CONDITIONER

Intelligent Key system

INTELLIGENT KEY

Combination switch

COMB SW

BCM

Immobilizer

IMMU

Interior room lamp battery saver

BATTERY SAVER

Trunk open

TRUNK

Vehicle security system

THEFT ALM

RAP system

RETAINED PWR

Signal buffer system

SIGNAL BUFFER

TPMS

AIR PRESSURE MONITOR

DIAGNOSIS SYSTEM (BCM)

HAC-29

< SYSTEM DESCRIPTION >

[AUTOMATIC AIR CONDITIONER]

HAC

AIR CONDITIONER
AIR CONDITIONER : CONSULT Function (BCM - AIR CONDITIONER)

INFOID:0000000010291108

DATA MONITOR

Monitor Item [Unit]

Description

FAN ON SIG [On/Off]

Indicates condition of fan switch.

AIR COND SW [On/Off]

Indicates condition of A/C switch.

HAC-30

< SYSTEM DESCRIPTION >

[AUTOMATIC AIR CONDITIONER]

DIAGNOSIS SYSTEM (IPDM E/R)

DIAGNOSIS SYSTEM (IPDM E/R)

Diagnosis Description

INFOID:0000000010291109

AUTO ACTIVE TEST

Description

In auto active test, the IPDM E/R sends a drive signal to the following systems to check their operation.

• Front wiper (LO, HI)

• Parking lamp

• License plate lamp

• Tail lamp

• Front fog lamp (if equipped)

• Headlamp (LO, HI)

• A/C compressor (magnet clutch)

• Cooling fan

Operation Procedure

NOTE:

Never perform auto active test in the following conditions.

• Passenger door is open

• CONSULT is connected
1. Close the hood and lift the wiper arms from the windshield. (Prevent windshield damage due to wiper

operation)

NOTE:

When auto active test is performed with hood opened, sprinkle water on windshield beforehand.

2. Turn the ignition switch OFF.
3. Turn the ignition switch ON, and within 20 seconds, press the driver door switch 10 times. Then turn the

ignition switch OFF.

4. Turn the ignition switch ON within 10 seconds. After that the horn sounds once and the auto active test

starts.

5. After a series of the following operations is repeated 3 times, auto active test is completed.
NOTE:

• When auto active test has to be cancelled halfway through test, turn the ignition switch OFF.

• When auto active test is not activated, door switch may be the cause. Check door switch. Refer to

DLK-103,

"Component Inspection"

Inspection in Auto Active Test

When auto active test is actuated, the following operation sequence is repeated 3 times.

Operation se-

quence

Inspection location

Operation

Front wiper

LO for 5 seconds

→ HI for 5 seconds

• Parking lamp
• License plate lamp
• Tail lamp
• Front fog lamp (if equipped)

10 seconds

Headlamp

LO for 10 seconds

→HI ON ⇔ OFF 5 times

A/C compressor (magnet clutch)

⇔ OFF 5 times

Cooling fan

LO for 5 seconds

→ MID for 3 seconds → HI for 2 seconds

DIAGNOSIS SYSTEM (IPDM E/R)

HAC-31

< SYSTEM DESCRIPTION >

[AUTOMATIC AIR CONDITIONER]

HAC

Concept of Auto Active Test

• IPDM E/R starts the auto active test with the door switch signals transmitted by BCM via CAN communica-

tion. Therefore, the CAN communication line between IPDM E/R and BCM is considered normal if the auto

active test starts successfully.

• The auto active test facilitates troubleshooting if any systems controlled by IPDM E/R cannot be operated.

Diagnosis Chart in Auto Active Test

CONSULT Function (IPDM E/R)

INFOID:0000000010291110

APPLICATION ITEM

CONSULT performs the following functions via CAN communication with IPDM E/R.

AWMIA1509GB

Symptom

Inspection contents

Possible cause

Any of the following components do not operate

• Parking lamp
• License plate lamp
• Tail lamp
• Front fog lamp (if equipped)
• Headlamp (HI, LO)
• Front wiper (HI, LO)

Perform auto active test.
Does the applicable system op-
erate?

YES

BCM signal input circuit

• Lamp or motor
• Lamp or motor ground circuit
• Harness or connector between

IPDM E/R and applicable system

• IPDM E/R

A/C compressor does not operate

Perform auto active test.
Does the magnet clutch oper-
ate?

YES

• BCM signal input circuit
• CAN communication signal be-

tween BCM and ECM

• CAN communication signal be-

tween ECM and IPDM E/R

• Magnet clutch
• Harness or connector between

IPDM E/R and magnet clutch

• IPDM E/R

Cooling fan does not operate

Perform auto active test.
Does the cooling fan operate?

YES

• ECM signal input circuit
• CAN communication signal be-

tween ECM and IPDM E/R

• Cooling fan motor
• Harness or connector between

IPDM E/R and cooling fan motor

• IPDM E/R

Direct Diagnostic Mode

Description

Ecu Identification

The IPDM E/R part number is displayed.

Self Diagnostic Result

The IPDM E/R self diagnostic results are displayed.

Data Monitor

The IPDM E/R input/output data is displayed in real time.

Content .. 543 544 545 546 ..