Infiniti Q45. Manual - part 705

STEP LAMP

LT-157

C

D

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F

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LT

3. 

CHECK GROUND CIRCUIT

Check continuity between BCM and driver/passenger/rear LH/rear
RH door control unit harness connector, and ground.

OK or NG

OK

>> INSPECTION END

NG

>> Repair harness or connector.

Terminal

Continuity

Connector

Terminal

Ground

BCM (M4)

56

Yes

113

Driver door control unit (D8)

15 

Passenger door control unit (D39)

7

Rear LH door control unit (D59)

Rear RH door control unit (D79)

PKIA5162E

LT-158

STEP LAMP

CONSULT-II Function (IVMS)

NKS001AG

●

CONSULT-II can display each diagnostic item using the diagnostic test mode shown following.

CONSULT-II BASIC OPERATION PROCEDURE

CAUTION:

If CONSULT-II is used with no connection of CONSULT-II CONVERTER, malfunctions might be
detected in self-diagnosis depending on control unit which performs CAN communication. 

1.

With the ignition switch OFF, connect “CONSULT-II” and “CON-
SULT-II CONVERTER” to the data link connector, and then turn
ignition switch ON.

2.

Touch “START (NISSAN BASED VHCL)”.

3.

Touch “IVMS” on “SELECT SYSTEM” screen. If “IVMS” is not
indicated, refer to 

GI-37, "CONSULT-II Data Link Connector

(DLC) Circuit"

 .

IVMS diagnosis position

Diagnosis mode

Description

STEP LAMP

DATA MONITOR

Displays input data of the BCM and each LCU in real-time.

ACTIVE TEST

Operation of electrical loads can be checked by sending driving signal to them.

BCM PART NUMBER

Displays BCM part number.

PKIB0601E

BCIA0029E

BCIA0030E

STEP LAMP

LT-159

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LT

4.

Select “WITH SUNROOF” on “SELECT SYS COND” screen.

5.

Touch “OK”. If the selection is wrong, touch “CANCEL”.

6.

Select the desired part to be diagnosed on “SELECT TEST
ITEM” screen.

DATA MONITOR
Operation Procedure

1.

Touch “STEP LAMP” on “SELECT TEST ITEM” screen.

2.

Touch “DATA MONITOR” on “SELECT DIAG MODE” screen.

3.

Touch “ALL SIGNALS” or “SELECTION FROM MENU” on “SELECT MONITOR ITEM” screen.

4.

Touch “START”.

5.

When “SELECTION FROM MENU” is selected, touch individual items to be monitored. When “ALL SIG-
NALS” is select, all the items will be monitored.

6.

Touch “RECORD” while monitoring, then the status of the monitored item can be recorded. To stop
recording, touch “STOP”.

Data Monitor Item 

ACTIVE TEST
Operation Procedure

1.

Touch “STEP LAMP” on “SELECT TEST ITEM” screen.

2.

Touch “ACTIVE TEST” on “SELECT DIAG MODE” screen.

3.

Touch item to be tested and check operation of the selected item.

4.

Touch “OFF” while testing and the operation will be stopped.

Active Test Item 

PIIA0184E

ALL SIGNALS

Monitors all items.

SELECTION FROM MENU

Selects items and monitors them.

Monitored item 

[“OPERATION OR UNIT”]

Contents

DOOR SW-DR

[ON/OFF]

Displays status of the driver door as judged from the driver door switch signal. (Door is open: ON/
Door is closed: OFF)

DOOR SW-AS

[ON/OFF]

Displays “Door open (ON)/door closed (OFF)” status judged from the passenger door switch signal.

DOOR SW-RR

[ON/OFF]

Displays “Door open (ON)/door closed (OFF)” status judged from the Rear RH door switch signal.

DOOR SW-RL

[ON/OFF]

Displays “Door open (ON)/door closed (OFF)” status judged from the Rear LH door switch signal.

Test item

Display on 

CONSULT-II screen

Description

Driver door step lamp output

STEP LAMP-DR

Driver door step lamp can be operated by any ON-OFF operation of lights.

Passenger door step lamp out-
put

STEP LAMP-AS

Passenger door step lamp can be operated by any ON-OFF operation of 
lights.

Rear RH door step lamp output

STEP LAMP-RR/RH

Rear RH door step lamp can be operated by any ON-OFF operation of lights.

Rear LH door step lamp output

STEP LAMP-RR/LH

Rear LH door step lamp can be operated by any ON-OFF operation of lights.

LT-160

STEP LAMP

On Board Diagnosis

NKS001AH

●

BCM can check communication diagnosis, switch monitor, and central locking system self diagnosis using
on board diagnosis.

●

Map lamps and step lamps (all seats) act as the indicators for on board diagnosis.

DIAGNOSIS ITEM

SWITCH MONITOR

●

Perform diagnosis on the switch system connected to each control unit.

How to Perform Switch Monitor

Description

●

Detects the status change (switch ON/OFF operation) of switch to be checked, and turns ON/OFF indica-
tor lamps (the map lamp and step lamp). Also sounds the buzzer for 0.5 seconds.

●

If a malfunction is detected, no indicator lamp and buzzer react.

Switch Monitor Item

●

The status of the switch (except the ignition switch, interior lamp illumination switch, and map lamp switch)
as input to each control unit can be monitored.

Diagnosis item

Description

Switch monitor

Checks for malfunction in switch systems that input to BCM and each LCU.

PKIA7882E

PIIA0177E

Control unit

Item

BCM

Each door switch