Nissan Qashqai (2007-2010). Manual — part 997
DIAGNOSIS SYSTEM (INTELLIGENT KEY UNIT)
DLK-67
< FUNCTION DIAGNOSIS >
[WITH I-KEY, WITHOUT SUPER LOCK]
C
D
E
F
G
H
I
J
L
M
A
B
DLK
N
O
P
*1
: The item is only for MT model.
INDICATOR
This test is able to check warning lamp operation.
• BLUE ON: Key warning lamp (green) illuminates.
• RED ON: Key warning lamp (red) illuminates.
• KNOB ON: Lock warning lamp illuminates.
• BLUE IND: Key warning lamp (green) flashes.
• RED IND: Key warning lamp (red) flashes.
• KNOB IND: Lock warning lamp flashes.
• OFF
KEY LOCK SOLENOID
*1
This test is able to check key interlock operation.
• LOCK: Key interlock is active.
• UNLOCK: Key interlock is inactive.
Test item
Description
DLK-68
< COMPONENT DIAGNOSIS >
[WITH I-KEY, WITHOUT SUPER LOCK]
U1000 CAN COMM CIRCUIT
COMPONENT DIAGNOSIS
U1000 CAN COMM CIRCUIT
Description
INFOID:0000000001078091
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:0000000000939071
DTC DETECTION LOGIC
Diagnosis Procedure
INFOID:0000000000939072
1.
PERFORM SELF DIAGNOSTIC
1.
Turn ignition switch ON and wait for 2 seconds or more.
2.
Check “Self Diagnostic Result”.
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 Intelligent Key unit cannot communi-
cate CAN communication signal continuous-
ly for 2 seconds or more.
In CAN communication system, any item (or items)
of the following listed below is malfunctioning.
• Transmission
• Receiving (BCM)
• Receiving (IPDM E/R)
• Receiving (ECM)
• Receiving (METER/M&A)
• Receiving (MULTI AV)
U1010 CONTROL UNIT (CAN)
DLK-69
< COMPONENT DIAGNOSIS >
[WITH I-KEY, WITHOUT SUPER LOCK]
C
D
E
F
G
H
I
J
L
M
A
B
DLK
N
O
P
U1010 CONTROL UNIT (CAN)
Description
INFOID:0000000001078092
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:0000000000939073
DTC DETECTION LOGIC
Diagnosis Procedure
INFOID:0000000000939074
1.
REPLACE INTELLIGENT KEY UNIT
When DTC [U1010] is detected, replace Intelligent Key unit.
>> Replace Intelligent Key unit.
Special Repair Requirement
INFOID:0000000000939075
1.
REQUIRED WORK WHEN REPLACING INTELLIGENT KEY UNIT
Initialize control unit. Refer to CONSULT-III operation manual NATS-IVIS/NVIS.
>> Work end.
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 Intelligent Key unit.
Intelligent Key unit
DLK-70
< COMPONENT DIAGNOSIS >
[WITH I-KEY, WITHOUT SUPER LOCK]
B2552 INTELLIGENT KEY
B2552 INTELLIGENT KEY
Description
INFOID:0000000001115364
Intelligent key unit performs engine start operation and steering lock control by crosschecking ID with the Intel-
ligent key.
DTC Logic
INFOID:0000000001115365
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.
PERFORM DTC CONFIRMATION PROCEDURE
1.
Turn ignition switch ON.
2.
Check “Self diagnostic result” with CONSULT-III.
Is DTC detected?
YES
>> Refer to
.
NO
>> INSPECTION END.
Diagnosis Procedure
INFOID:0000000001115366
1.
REPLACE INTELLIGENT KEY UNIT
1.
Replace Intelligent Key unit.
2.
Perform initialization with CONSULT-III. Re-register all mechanical keys. Refer to “CONSULT-III Opera-
tion Manual NATS”.
3.
Start the engine.
Does the engine start?
YES
>> INSPECTION END
NO
>> Perform “DTC confirmation procedure”. Refer to
.
Special Repair Requirement
INFOID:0000000001115367
1.
REQUIRED WORK WHEN REPLACING INTELLIGENT KEY UNIT
Initialize control unit. Refer to CONSULT-III operation manual NATS-IVIS/NVIS.
>> Work end.
DTC No.
Trouble diagnosis
name
DTC detecting condition
Possible cause
B2552
INTELLIGENT KEY
UNIT
Malfunction is detected inside Intelligent
key unit.
• Intelligent Key unit
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