Nissan Qashqai (2007-2010). Manual - part 1468

DEF-48

< ECU DIAGNOSIS >

BCM (BODY CONTROL MODULE)

Fail Safe

INFOID:0000000001114996

Fail-safe index

BCM performs fail-safe control when any DTC listed below is detected.

JCLWA0411GB

BCM (BODY CONTROL MODULE)

DEF-49

< ECU DIAGNOSIS >

C

D

E

F

G

H

I

J

K

M

A

B

DEF

N

O

P

REAR WIPER CONTROL

BCM detects a rear wiper stopping position according to a rear wiper auto stop signal.
When a rear wiper auto stop signal is in the condition listed below, BCM stops power supply to rear wiper after
rear wiper is activated for five seconds.

NOTE:
The above operation is repeated when operating the rear wiper switch one minute after the stop of the rear
wiper caused by Fail-safe.

TURN SIGNAL LAMP CONTROL

BCM detects the turn signal lamp circuit status from the terminal voltage.
BCM increases the turn signal lamp blinking speed if the bulb or harness open is detected with the turn signal
lamp operating.
NOTE:
The blinking speed is normal while activating the hazard warning lamp.

LIGHT & RAIN SENSOR MALFUNCTION DETECTION FUNCTION

BCM controls the following items when LIGHT & RAIN sensor has a malfunction.

Auto Light Control

Headlamp is turned ON.

Front Wiper Control

The condition just before the activation of Fail-safe is maintained until the front wiper switch is turned OFF.

DTC Inspection Priority Chart

INFOID:0000000001114997

Display contents of CONSULT

Fail-safe

Cancellation

B2190: NATS ANTENNA AMP

• Inhibits engine cranking
• Inhibits steering lock unlocking (Intelligent Key unit)
• Fuel  cut  (ECM)

Erase DTC

B2191: DIFFERENCE OF KEY

• Inhibits engine cranking
• Inhibits steering lock unlocking (Intelligent Key unit)
• Fuel  cut  (ECM)

Erase DTC

B2192: ID DISCORD BCM-ECM

Fuel cut (ECM)

Erase DTC

B2193: CHAIN OF BCM-ECM

Fuel cut (ECM)

Erase DTC

B2194: DISCORD BCM-I-KEY

• Inhibits engine cranking
• Inhibits steering lock unlocking (Intelligent Key unit)
• Fuel  cut  (ECM)

Erase DTC

B2195: ANTI SCANNING

• Inhibits engine cranking
• Inhibits steering lock unlocking (Intelligent Key unit)
• Fuel  cut  (ECM)

Erase DTC

B2196: DONGLE NG

• Inhibits engine cranking
• Inhibits steering lock unlocking (Intelligent Key unit)
• Fuel  cut  (ECM)

Erase DTC

Ignition switch 

Rear wiper switch

Auto stop signal

ON

OFF

Rear wiper stop position signal cannot be 
input 5 seconds.

ON

The signal does not change for 5 seconds.

DEF-50

< ECU DIAGNOSIS >

BCM (BODY CONTROL MODULE)

DTC Index

INFOID:0000000001114998

NOTE:

Details of time display

• CRNT: Displays when there is a malfunction now or after returning to the normal condition until turning igni-

tion switch OFF 

→

 ON again.

• PAST: Displays when there is a malfunction that is detected in the past and stored.
• 1 - 39: Displayed if any previous malfunction is present when current condition is normal. It increases like 1

→

 2 

→

 3...38 

→

 39 after returning to the normal condition whenever ignition switch OFF 

→

 ON. The counter

remains at 39 even if the number of cycles exceeds it. It is counted from 1 again when turning ignition switch
OFF 

→

 ON after returning to the normal condition if the malfunction is detected again.

Priority

DTC

1

• U1000: CAN COMM CIRCUIT
• U1010: CONTROL UNIT (CAN)

2

• B2190: NATS ANTENNA AMP
• B2191: DIFFERNCE OF KEY
• B2192: ID DISCORD BCM-ECM
• B2193: CHAIN OF BCM-ECM
• B2194: DISCORD BCM-I-KEY
• B2195: ANTI SCANNING
• B2196: DONGLE NG

CONSULT display

TIME

Fail-safe

Refer to

No DTC is detected.
further testing
may be required.

—

—

—

—

U1000: CAN COMM CIRCUIT

0

1 - 39

—

BCS-32

U1010: CONTROL UNIT (CAN)

0

1 - 39

—

BCS-33

B2190: NATS ANTENNA AMP

CRNT

PAST

×

• With Intelligent Key system 

SEC-33

• Without Intelligent Key system 

SEC-

174

B2191: DIFFERENCE OF KEY

CRNT

PAST

×

• With Intelligent Key system 

SEC-35

• Without Intelligent Key system 

SEC-

176

 

B2192: ID DISCORD BCM-ECM

CRNT

PAST

×

• With Intelligent Key system 

SEC-36

• Without Intelligent Key system 

SEC-

177

B2193: CHAIN OF BCM-ECM

CRNT

PAST

×

• With Intelligent Key system 

SEC-38

• Without Intelligent Key system 

SEC-

178

B2194: DISCORD BCM-I-KEY

CRNT

PAST

×

SEC-39

B2195: ANTI SCANNING

CRNT

PAST

×

• With Intelligent Key system 

SEC-179

• Without Intelligent Key system 

SEC-

179

B2196: DONGLE NG

CRNT

PAST

×

• With Intelligent Key system 

SEC-41

• Without Intelligent Key system 

SEC-

180

 

IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)

DEF-51

< ECU DIAGNOSIS >

C

D

E

F

G

H

I

J

K

M

A

B

DEF

N

O

P

IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE
ROOM)

Reference Value

INFOID:0000000001035893

VALUES ON THE DIAGNOSIS TOOL

Monitor Item

Condition

Value/Status

MOTOR FAN REQ

Engine idle speed

Changes depending on engine 
coolant temperature, air condition-
er operation status, vehicle speed, 
etc.

1 - 3

AC COMP REQ

Engine running

A/C switch OFF

Off

A/C switch ON
(Compressor is operating)

On

TAIL&CLR REQ

Lighting switch OFF

Off

Lighting switch 1ST, 2ND or AUTO (Light is illuminated)

On

HL LO REQ

Lighting switch OFF

Off

Lighting switch 2ND or AUTO (Light is illuminated)

On

HL HI REQ

Lighting switch OFF

Off

Lighting switch HI (Light is illuminated)

On

FR FOG REQ

Lighting switch 2ND or
AUTO (Light is illuminated)

Front fog lamp switch OFF

Off

Front fog lamp switch ON

On

HL WASHER REQ

Ignition switch ON, and low 
beam headlamp is ON

Front washer switch OFF

Off

Front washer switch ON
(When headlamp washer is operat-
ing)

On

FR WIP REQ

Ignition switch ON

Front wiper switch OFF

STOP

Front wiper switch INT

1LOW

Front wiper switch LO

Low

Front wiper switch HI

Hi

WIP AUTO STOP

Ignition switch ON

Front wiper stop position

STOP P

Any position other than front wiper 
stop position

ACT P

WIP PROT

Ignition switch ON

Front wiper operates normally

Off

Front wiper stops at fail-safe oper-
ation

BLOCK

ST RLY REQ
NOTE:
Vehicle without Intelligent Key system indi-
cates only “ON”, and it does not change.

When Intelligent Key is outside the vehicle, and the push switch 
is pushed

Off

When Intelligent Key is inside the vehicle, and the push switch is 
pushed

On

IGN RLY

Ignition switch OFF or ACC

Off

Ignition switch ON

On

RR DEF REQ

Ignition switch ON

Rear window defogger switch OFF

Off

Rear window defogger switch ON
(Rear window defogger is operat-
ing)

On

OIL P SW

Ignition switch OFF, ACC or engine running

Open

Ignition switch ON

Close