Nissan Altima L32. Instruction — part 126
BCS-38
< COMPONENT DIAGNOSIS >
[BCM]
U1000 CAN COMM CIRCUIT
COMPONENT DIAGNOSIS
U1000 CAN COMM CIRCUIT
Description
INFOID:0000000004202258
.
DTC Logic
INFOID:0000000004202259
DTC DETECTION LOGIC
Diagnosis Procedure
INFOID:0000000004202260
1.
PERFORM SELF DIAGNOSTIC
1. Turn ignition switch ON and wait for 2 second or more.
2. Check “SELF- DIAG RESULTS”.
Is “CAN COMM CIRCUIT” displayed?
YES
>> Refer to
LAN-8, "CAN Communication Control Circuit"
.
NO
>> Refer to
GI-42, "Intermittent Incident"
.
CONSULT-III dis-
play description
DTC Detection Condition
Possible cause
CAN COMM CIR-
CUIT
[U1000]
When any listed module cannot communicate CAN com-
munication signal continuously for 2 seconds or more with
ignition switch ON
In CAN communication system, any item (or items)
of the following listed below is malfunctioning.
• Transmission
• Receiving (ECM)
• Receiving (VDC/TCS/ABS)
• Receiving (METER/M&A)
• Receiving (TCM)
• Receiving (IPDM E/R)
BCS
U1010 CONTROL UNIT (CAN)
BCS-39
< COMPONENT DIAGNOSIS >
[BCM]
C
D
E
F
G
H
I
J
K
L
B
A
O
P
N
U1010 CONTROL UNIT (CAN)
DTC Logic
INFOID:0000000004202261
DTC DETECTION LOGIC
Diagnosis Procedure
INFOID:0000000004202262
1.
REPLACE BCM
When DTC U1010 is detected, replace BCM.
>> Replace BCM. Refer to
BCS-96, "Removal and Installation"
CONSULT-III display
description
DTC Detection Condition
Possible cause
CAN COMM CIRCUIT
[U1010]
BCM detected internal CAN communication circuit malfunction.
BCM
BCS-40
< COMPONENT DIAGNOSIS >
[BCM]
U0415 VEHICLE SPEED SIG
U0415 VEHICLE SPEED SIG
Description
INFOID:0000000004202263
U0415 is displayed if any unusual condition is present in the reception status of the vehicle speed signal from
the ABS actuator and electric unit (control unit).
DTC Logic
INFOID:0000000004202264
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.
DTC CONFIRMATION
1. Erase the DTC.
2. Turn ignition switch OFF.
3. Perform the "SELF-DIAG RESULTS" of CONSULT-III, after the ignition switch has been turned ON for 2
seconds or more.
Is any DTC detected?
YES
>> Refer to
NO
>> Inspection End.
Diagnosis Procedure
INFOID:0000000004202265
1.
ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) SELF-DIAG RESULTS
Perform "SELF-DIAG RESULTS" of ABS actuator and electric unit (control unit) with CONSULT-III. Refer to
BRC-12, "CONSULT-III Function (ABS)"
.
Is any DTC detected?
YES
>> Repair or replace the malfunctioning part.
NO
>> Replace BCM. Refer to
BCS-96, "Removal and Installation"
DTC
Display contents of
CONSULT-III
Diagnostic item is detected when ...
Probable malfunction location
U0415
VEHICLE SPEED SIG
[U0415]
When the vehicle speed signal received from
the ABS actuator and electric unit (control
unit) remains abnormal for 2 seconds or more.
• ABS actuator and electric unit (control unit)
• BCM
BCS
B2562 LOW VOLTAGE
BCS-41
< COMPONENT DIAGNOSIS >
[BCM]
C
D
E
F
G
H
I
J
K
L
B
A
O
P
N
B2562 LOW VOLTAGE
DTC Logic
INFOID:0000000004202266
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.
DTC CONFIRMATION
1. Erase DTC.
2. Turn ignition switch OFF.
3. Perform the "SELF-DIAG RESULTS" of CONSULT-III, after the ignition switch has been turned ON for 1.5
seconds or more.
Is any DTC detected?
YES
>> Refer to
NO
>> Inspection End.
Diagnosis Procedure
INFOID:0000000004202267
1.
CHECK BATTERY VOLTAGE
Check battery voltage.
Is battery voltage less than 8.8V?
Yes
>> Charge battery and retest. Refer to
.
No
>> GO TO 2
2.
CHECK POWER SUPPLY CIRCUIT
Check BCM power supply circuit. Refer to
Is the circuit OK?
Yes
>> Replace BCM. Refer to
BCS-96, "Removal and Installation"
No
>> Repair or replace the malfunctioning part.
Special Repair Requirement
INFOID:0000000004202268
1.
REQUIRED WORK WHEN REPLACING BCM
Initialize control unit. Refer to
BCS-6, "CONFIGURATION (BCM) : Special Repair Requirement"
>> Work End.
DTC
Display contents of
CONSULT-III
Diagnostic item is detected when ...
Possible cause
B2562
LOW VOLTAGE
When the power supply voltage to BCM remains less
than 8.8 V for 1.5 seconds or more
Harness or connector (power supply
circuit)
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