Nissan Tiida C11. Manual - part 1174

SEC-68

< ECU DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

BCM (BODY CONTROL MODULE)

Fail Safe

INFOID:0000000001404125

Fail-safe index

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

ALKIA1260GB

BCM (BODY CONTROL MODULE)

SEC-69

< ECU DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

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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:0000000001404126

DTC Index

INFOID:0000000001404127

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.

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

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.

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

SEC-70

< ECU DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

BCM (BODY CONTROL MODULE)

• 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.

CONSULT display

TIME

Fail-safe

Refer to

No DTC is detected.
further testing
may be required.

—

—

—

—

U1000: CAN COMM CIRCUIT

0

1 - 39

—

XX-XX, "*****"

U1010: CONTROL UNIT (CAN)

0

1 - 39

—

XX-XX, "*****"

B2190: NATS ANTENNA AMP

CRNT

PAST

×

 

SEC-26

B2191: DIFFERENCE OF KEY

CRNT

PAST

×

SEC-29

B2192: ID DISCORD BCM-ECM

CRNT

PAST

×

SEC-30

B2193: CHAIN OF BCM-ECM

CRNT

PAST

×

SEC-32

B2194: DISCORD BCM-I-KEY

CRNT

PAST

×

SEC-33

INTELLIGENT KEY UNIT

SEC-71

< ECU DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

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INTELLIGENT KEY UNIT

Reference Value

INFOID:0000000001404128

For LHD vehicles, refer to 

DLK-381, "Reference Value"

.

For RHD vehicles, refer to 

DLK-151, "Reference Value"

.

Fail Safe

INFOID:0000000001404132

DTC Inspection Priority Chart

INFOID:0000000001404133

If some DTCs are displayed at the same time, perform inspections one by one based on the following priority
chart.

DTC Index

INFOID:0000000001404134

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.

• 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.

Display contents of CONSULT-III

Fail-safe

Cancellation

B2013: STRG COMM 1

• Inhibits steering look unlocking

Erase DTC

B2552: INTELLIGENT KEY

• Inhibits steering look unlocking
• Inhibits  engine cranking

(BCM)

• Fuel  cut

(ECM)

Erase DTC

B2590: NATS MALFUNCTION

• Inhibits steering look unlocking
• Inhibits  engine cranking

(BCM)

• Fuel  cut

(ECM)

Erase DTC

Priority

DTC

1

• U1000: CAN COMM CIRCUIT
• U1010: CONTROL UNIT (CAN)
• B2552: INTELIGENT KEY

2

• B2013: STRG COMM 1
• B2590: NATS MALFUNCTION

CONSULT display

Detection condition

Fail-safe

Diagnosis

No DTC is detected.
further testing
may be required.

—

—

—

U1000: CAN COMM CIRCUIT

Intelligent Key unit cannot receive CAN communi-
cation signal continuously for 2 seconds or more.

—

Check CAN communi-
cation system.
Refer to 

SEC-21

U1010: CONTROL UNIT (CAN)

Intelligent Key unit detects internal CAN communi-
cation circuit malfunction.

—

Replace Intelligent Key 
unit.

B2013: STRG COMM 1

The ID verification result between Intelligent key 
unit and steering lock unit are NG. Or Intelligent Key 
unit cannot communicate with steering lock unit.

×

Perform steering lock 
unit ID registration with 
CONSULT-III