Infiniti QX56 (JA60). Manual — part 256
![](/vehicles/zatt/vend/genn/imand.png)
INTELLIGENT KEY UNIT
DLK-195
< ECU DIAGNOSIS >
[WITH INTELLIGENT KEY SYSTEM]
C
D
E
F
G
H
I
J
L
M
A
B
DLK
N
O
P
Fail Safe
INFOID:0000000005380595
Fail-safe operation
The Intelligent Key system operation will be interrupted if the Intelligent Key unit loses power or communica-
tion with the BCM.
ABKIA1363GB
![](/vehicles/zatt/vend/genn/msoun.png)
DLK-196
< ECU DIAGNOSIS >
[WITH INTELLIGENT KEY SYSTEM]
INTELLIGENT KEY UNIT
DTC Inspection Priority Chart
INFOID:0000000005380596
If some DTCs are displayed at the same time, perform inspections one by one based on the following priority
chart.
DTC Index
INFOID:0000000005380597
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 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: DIFFERENCE OF KEY
• B2192: ID DISCORD BCM-ECM
• B2193: CHAIN OF BCM-ECM
• B2194: ID DISCORD IMMU-I-KEY
3
• B2013: ID DISCORD BCM-S/L
• B2552: INTELLIGENT KEY
• B2590: ID DISCORD BCM-I-KEY
• P1610: LOCK MODE
• P1611: ID DISCORD, IMMU-ECM
• P1612: CHAIN OF ECM-IMMU
• P1614: CHAIN OF IMMU-KEY
• P1615: DIFFERENCE OF KEY
CONSULT display
Fail-safe
Freeze Frame Data
•Vehicle Speed
•Odo/Trip Meter
•Vehicle Condition
Intelligent Key warn-
ing lamp ON
Reference page
No DTC is detected.
Further testing
may be required.
—
—
—
—
U1000: CAN COMM
—
—
—
U1010: CONTROL UNIT(CAN)
—
—
—
B2013: ID DISCORD BCM-S/L
×
×
—
B2190: NATS ANTENNA AMP
×
—
—
B2191: DIFFERENCE OF KEY
×
—
—
B2192: ID DISCORD BCM-ECM
×
—
—
B2193: CHAIN OF BCM-ECM
×
—
—
B2194: ID DISCORD IMMU-I-KEY
×
—
—
B2552: INTELLIGENT KEY
—
×
×
B2590: IID DISCORD BCM-I-KEY
—
×
×
P1610: LOCK MODE
—
×
×
P1611: ID DISCORD, IMMU-ECM
—
×
×
P1612: CHAIN OF ECM-IMMU
—
—
×
P1614: CHAIN OF IMMU-KEY
×
×
×
P1615: DIFFERENCE OF KEY
—
×
×
![](/vehicles/zatt/vend/genn/lriselambu.png)
BACK DOOR CONTROL UNIT
DLK-197
< ECU DIAGNOSIS >
[WITH INTELLIGENT KEY SYSTEM]
C
D
E
F
G
H
I
J
L
M
A
B
DLK
N
O
P
BACK DOOR CONTROL UNIT
Reference Value
INFOID:0000000005147029
TERMINAL LAYOUT
PHYSICAL VALUES
LIIA2444E
Terminal
Wire Col-
or
Item
Condition
Voltage (V)
(Approx.)
1
B
Ground
—
—
2
B
Ground
—
—
3
Y/R
Battery power supply
—
Battery voltage
4
G
Hazard lamp output
Request to flash hazards
Pulse must be >50ms
but less than 250ms
5
B/P
Pinch strip ground
—
—
6
R
Warning chime output
Back door motor active
Battery voltage
7
G/R
Ignition switch
Ignition switch ON
Battery voltage
Ignition switch OFF
0
8
GR/B
Back door close switch
Close position ON
0
Neutral position OFF
Battery voltage
9
L
Warning chime ground
—
—
10
L/B
Battery power
—
Battery voltage
11
Y
Cinch latch motor
CLOSE output
Back door close operation
Battery voltage
12
L
Closure motor
RETURN output
Back door release operation
Battery voltage
13
P/L
Back door close switch
Cancel position
0
Neutral position
5
14
P
Close switch signal
While fully opening back door
PIIA3278E
WIIA1047E
![](/vehicles/zatt/vend/genn/angr.png)
DLK-198
< ECU DIAGNOSIS >
[WITH INTELLIGENT KEY SYSTEM]
BACK DOOR CONTROL UNIT
15
O/L
Open switch signal
While fully closing back door
17
GR
Glass hatch ajar signal
Glass hatch OPEN
0
Glass hatch CLOSED
5
18
GR/R
Park switch
P or N position (Ignition is ON)
0
Other (Ignition is ON)
9
19
BR/B
Pinch strip RH
Detecting obstruction
0
Other
5
20
V/G
Pinch strip LH
Detecting obstruction
0
Other
5
21
W/V
Power window serial link
—
22
BR
Half switch signal
Back door half latch position
23
L/W
Power liftgate switch
ON
0
OFF
Battery voltage
26
V
Outside handle signal
Back door handle switch (at rest)
Battery voltage
Back door handle switch (open)
0
Terminal
Wire Col-
or
Item
Condition
Voltage (V)
(Approx.)
WIIA1047E
PIIA2344E
PIIA2169E
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