Nissan Qashqai (2007-2010). Manual - part 1485

BCS-30

< FUNCTION DIAGNOSIS >

DIAGNOSIS SYSTEM (BCM)

*1

: For vehicle equipped with Intelligent Key.

*2

: For the vehicle equipped with remote key less entry system.

ACTIVE TEST

WORK SUPPORT

SIGNAL BUFFER

SIGNAL BUFFER : CONSULT-III Function (BCM - SIGNAL BUFFER)

INFOID:0000000000924610

DATA MONITOR

ACTIVE TEST

Monitor Item

Condition

IGN ON SW

Indicates [ON/OFF] condition of ignition switch in ON position.

ACC ON SW

Indicates [ON/OFF] condition of ignition switch in ACC position.

PUSH SW

*1

Indicates [ON/OFF] condition of ignition knob switch.

KEY ON SW

Indicates [ON/OFF] condition of key switch.

KEYKESS LOCK

*2

Indicates [ON/OFF] condition of lock signal from key fob.

KEYLESS UNLOCK

*2

Indicates [ON/OFF] condition of unlock signal from key fob.

I-KEY LOCK

*1

Indicates [ON/OFF] condition of lock signal from Intelligent Key.

I-KEY UNLOCK

*1

Indicates [ON/OFF] condition of unlock signal from Intelligent Key.

HOOD SW

Indicates [ON/OFF] condition of hood switch.

DOOR SW-DR

Indicates [ON/OFF] condition of front door switch (driver side).

DOOR SW-AS

Indicates [ON/OFF] condition of front door switch (passenger side).

DOOR SW-RR

Indicates [ON/OFF] condition of rear door switch RH.

DOOR SW-RL

Indicates [ON/OFF] condition of rear door switch LH.

BACK DOOR SW

Indicates [ON/OFF] condition of back door switch.

CDL LOCK SW

Indicates [ON/OFF] condition of door lock and unlock switch.

CDL UNLOCK SW

Indicates [ON/OFF] condition of door lock and unlock switch.

Test item

Description

THEFT IND

This test is able to check security indicator operation [ON/OFF]. 

VEHICLE SECURITY HORN

This test is able to check horn operation [ON].

FLASHER

This test is able to check flasher operation [LH/RH/OFF].

Test item

Description

SECURITY ALARM SET

Vehicle security function mode can be changed in this mode.
• ON: Vehicle security function is ON.
• OFF: Vehicle security function is OFF. 

THEFT ALM TRG

The switch which triggered vehicle security system is recorded. This mode can be able to con-
firm and erase the record of vehicle security system. 

Monitor item [UNIT]

Description

OIL PRESS SW
[OFF/ON]

Displays the status of oil pressure switch received from IPDM E/R via CAN communication.

BCS

DIAGNOSIS SYSTEM (BCM)

BCS-31

< FUNCTION DIAGNOSIS >

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PTC HEATER

PTC HEATER : CONSULT-III Function (BCM - PTC HEATER)

INFOID:0000000001098004

DATA MONITOR

Display Item List

ACTIVE TEST

Test item

Test item

Operation

Description

OIL PRESSURE SW

OFF

OFF

ON

BCM transmits the oil pressure switch signal to the combination meter via CAN communica-
tion, which illuminates the oil pressure warning lamp in the combination meter.

Monitor Item

[Unit]

Description

ELEC PWR CUT

[OFF/FREEZ/INHBT]

Indicate [OFF/FREEZ/INHBT] condition of the PTC heater states.

FAN ON SIG

[On/Off]

Displays [FAN (ON)/FAN (OFF)] status as judged from blower fan motor signal.

ENGINE STATUS

[STOP/STAL/RUN/CRA]

Indicate [STOP/STALL/RUN/CRA] condition of the engine states.

ENG COOLNT T

[

°

C]

The engine coolant temperature (determined by the signal voltage of the engine coolant tem-
perature sensor) is displayed.

BATTERY VOLT

[V]

The power supply voltage of BCM is displayed.

ENGINE RPM

[rpm]

Indicates the engine speed computed from the signal of the crankshaft position sensor.

OUTSIDE TEMP

[

°

C]

The outside air temperature (determined by the signal voltage of the OAT sensor) is displayed.

Test Item

Operation

Description

PTC HEATER

OFF

PTC 1
PTC 2
PTC 3

This test is able to check PTC heater operation.

BCS-32

< COMPONENT DIAGNOSIS >

U1000 CAN COMM CIRCUIT

COMPONENT DIAGNOSIS

U1000 CAN COMM CIRCUIT

Description

INFOID:0000000000924613

CAN (Controller Area Network) is a serial communication line for real time applications. It is an on-vehicle mul-
tiplex communication line with high data communication speed and excellent error detection ability. Modern
vehicle is equipped with many electronic control unit, and each control unit shares information and links with
other control units during operation (not independent). In CAN communication, control units are connected
with 2 communication lines (CAN-H line, CAN-L line) allowing a high rate of information transmission with less
wiring. Each control unit transmits/receives data but selectively reads required data only.
CAN Communication Signal Chart. Refer to 

LAN-59, "CAN Communication Signal Chart"

.

DTC Logic

INFOID:0000000000924614

DTC DETECTION LOGIC

Diagnosis Procedure

INFOID:0000000000943712

1.

PERFORM SELF DIAGNOSTIC

1.

Turn ignition switch ON and wait for 2 seconds or more.

2.

Check “Self Diagnostic Result” of BCM.

Is “CAN COMM CIRCUIT” displayed?

YES

>> Refer to 

LAN-46, "Trouble Diagnosis Flow Chart"

.

NO

>> Refer to 

GI-39, "Intermittent Incident"

.

DTC

CONSULT-III display 

description

DTC Detection Condition

Possible cause

U1000

CAN COMM CIRCUIT

When BCM cannot communicate CAN com-
munication signal continuously for 2 sec-
onds or more.

Any item (or items) of the following listed below is 
malfunctioning in CAN communication system.
• Transmission
• Receiving (ECM)
• Receiving (METER/M&A)
• Receiving (TCM)
• Receiving (MULTI AV)
• Receiving (IPDM E/R)
• Receiving (I-KEY)

BCS

U1010 CONTROL UNIT (CAN)

BCS-33

< COMPONENT DIAGNOSIS >

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U1010 CONTROL UNIT (CAN)

DTC Logic

INFOID:0000000000924616

DTC DETECTION LOGIC

Diagnosis Procedure

INFOID:0000000000924617

1.

REPLACE BCM

When “DTC:U1010” is detected, replace BCM.

>> Replace BCM. Refer to 

BCS-64, "Exploded View"

.

Special Repair Requirement

INFOID:0000000000927249

1.

ADDITIONAL SERVICE WHEN REPLACING BCM

>> Refer to 

BCS-3, "ADDITIONAL SERVICE WHEN REPLACING CONTROL UNIT : Description"

.

DTC

CONSULT-III display de-

scription

DTC Detection Condition

Possible cause

U1010

CONTROL UNIT (CAN)

When detecting error during the initial diagnosis of CAN control-
ler of BCM.

BCM