Nissan Maxima. Instruction — part 335
U1010 CONTROL UNIT (CAN)
DLK-59
< DTC/CIRCUIT DIAGNOSIS >
C
D
E
F
G
H
I
J
L
M
A
B
DLK
N
O
P
U1010 CONTROL UNIT (CAN)
DTC Logic
INFOID:0000000009471625
DTC DETECTION LOGIC
Diagnosis Procedure
INFOID:0000000009471626
1.
REPLACE BCM
When DTC [U1010] is detected, replace BCM.
>> Replace BCM. Refer to
BCS-79, "Removal and Installation"
Special Repair Requirement
INFOID:0000000009471627
1.
REQUIRED WORK WHEN REPLACING BCM
Initialize NVIS by CONSULT. For the details of initialization refer to CONSULT Immobilizer mode and follow
the on-screen instructions.
>> Work end.
DTC
CONSULT display de-
scription
DTC Detection Condition
Possible cause
U1010
CONTROL UNIT (CAN)
BCM detected internal CAN communication circuit malfunction.
BCM
DLK-60
< DTC/CIRCUIT DIAGNOSIS >
B2622 INSIDE KEY ANTENNA 2
B2622 INSIDE KEY ANTENNA 2
Description
INFOID:0000000009471628
Detects whether Intelligent Key is inside the vehicle.
Installed under the center console.
DTC Logic
INFOID:0000000009471629
NOTE:
The Signal Tech II Tool (J-50190) can be used to perform the following functions. Refer to the Signal Tech II
User Guide for additional information.
• Check Intelligent Key relative signal strength
• Confirm vehicle Intelligent Key antenna signal strength
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.
PERFORM DTC CONFIRMATION PROCEDURE
With CONSULT
1. Perform front console antenna INSIDE ANT DIAGNOSIS on “Work Support” of “INTELLIGENT KEY”.
2. Perform “INTELLIGENT KEY” Self Diagnostic Result.
Is front console antenna DTC detected?
YES
>> Refer to
.
NO
>> Front console antenna is OK.
Diagnosis Procedure
INFOID:0000000009471630
NOTE:
The Signal Tech II Tool (J-50190) can be used to perform the following functions. Refer to the Signal Tech II
User Guide for additional information.
• Check Intelligent Key relative signal strength
• Confirm vehicle Intelligent Key antenna signal strength
Regarding Wiring Diagram information, refer to
.
1.
CHECK FRONT CONSOLE ANTENNA INPUT SIGNAL 1
1. Turn ignition switch OFF.
2. Check signal between BCM connector and ground with oscillo-
scope.
DTC No.
Trouble diagnosis
name
DTC detecting condition
Possible cause
B2622
INSIDE ANTENNA 2
CIRCUIT
An excessive high or low voltage from inside anten-
na is sent to BCM.
• Front console antenna
• Between BCM and front console
antenna.
ALKIA0327ZZ
B2622 INSIDE KEY ANTENNA 2
DLK-61
< DTC/CIRCUIT DIAGNOSIS >
C
D
E
F
G
H
I
J
L
M
A
B
DLK
N
O
P
Is the inspection result normal?
YES
>> Check the condition of harness and connector.
NO
>> GO TO 2
2.
CHECK FRONT CONSOLE ANTENNA CIRCUIT
1. Disconnect BCM and front console antenna connector.
2. Check continuity between BCM connector and front console antenna connector.
3. Check continuity between BCM connector and ground.
Is the inspection result normal?
YES
>> GO TO 3
NO
>> Repair or replace harness between BCM and front console antenna.
3.
CHECK FRONT CONSOLE ANTENNA INPUT SIGNAL 2
1. Replace front console antenna (new antenna or other antenna).
2. Connect BCM and front console antenna connector.
Terminals
Condition
Signal
(Reference value.)
(+)
(–)
BCM connector
Terminal
M19
Front console
antenna
61
Ground
Place Intelligent Key inside the ve-
hicle.
Place Intelligent Key outside the
vehicle.
JMKIA0062GB
JMKIA0063GB
BCM connector
Terminal
Front console antenna
connector
Terminal
Continuity
M19
60
M41
Console
2
Yes
61
1
BCM connector
Terminal
Ground
Continuity
M19
Console
60
No
61
DLK-62
< DTC/CIRCUIT DIAGNOSIS >
B2622 INSIDE KEY ANTENNA 2
3. Check signal between BCM connector and ground with oscillo-
scope.
Is the inspection result normal?
YES
>> Replace front console antenna. Refer to
IP-21, "Disassembly and Assembly"
NO
>> Replace BCM. Refer to
BCS-79, "Removal and Installation"
ALKIA0327ZZ
Terminals
Condition
Signal
(Reference value.)
(+)
(–)
BCM connector
Terminal
M19
Front console
antenna
61
Ground
Place Intelligent Key inside the ve-
hicle.
Place Intelligent Key outside the
vehicle.
JMKIA0062GB
JMKIA0063GB
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