Nissan Maxima. Manual — part 221
BCS
DIAGNOSIS SYSTEM (BCM)
BCS-31
< SYSTEM DESCRIPTION >
[BCM]
C
D
E
F
G
H
I
J
K
L
B
A
O
P
N
TOR)
INFOID:0000000009467056
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.
• Activate and display TPMS transmitter IDs
• Display tire pressure reported by the TPMS transmitter
• Read TPMS DTCs
• Register TPMS transmitter IDs
SELF DIAGNOSTIC RESULT
NOTE:
Before performing Self Diagnostic Result, be sure to register the ID, or else the actual malfunction may be dif-
ferent from that displayed on CONSULT.
DATA MONITOR
ACTIVE TEST
WORK SUPPORT
Monitor Item
Condition
Specification
AIR PRESS FL
• Drive vehicle for a few minutes.
or
• Ignition switch ON and activation tool is trans-
mitting activation signals.
Tire pressure (kPa, kg/cm
2
or Psi)
AIR PRESS FR
AIR PRESS RR
AIR PRESS RL
ID REGST FL1
Ignition switch ON
Registration ID: Green
No registration: Red
ID REGST FR1
ID REGST RR1
ID REGST RL1
WARNING LAMP
Ignition switch ON
Low tire pressure warning lamp on: ON
Low tire pressure warning lamp off: OFF
BUZZER
Ignition switch ON
Buzzer in combination meter on: ON
Buzzer in combination meter off: OFF
Test Item
Description
WARNING LAMP
This test is able to check tire pressure warning lamp operation [On/Off].
ID REGIST WARNING
This test is able to check ID regist warning chime operation [On/Off].
FLASHER
This test is able to check turn signal lamp operation [Off/LH/RH].
HORN
This test is able to check horn operation [On].
Support Item
Description
ID READ
The registered ID number is displayed.
ID REGIST
Refer to
WT-6, "ID Registration Procedure"
.
BCS-32
< DTC/CIRCUIT DIAGNOSIS >
[BCM]
U1000 CAN COMM CIRCUIT
DTC/CIRCUIT DIAGNOSIS
U1000 CAN COMM CIRCUIT
Description
INFOID:0000000009467057
.
DTC Logic
INFOID:0000000009467058
DTC DETECTION LOGIC
NOTE:
U1000 can be set if a module harness was disconnected and reconnected, perhaps during a repair. Confirm
that there are actual CAN diagnostic symptoms and a present DTC by performing the Self Diagnostic Result
procedure.
Diagnosis Procedure
INFOID:0000000009467059
1.
PERFORM SELF DIAGNOSTIC
1. Turn ignition switch ON and wait for 2 seconds or more.
2. Check “SELF- DIAG RESULTS”.
Is “CAN COMM CIRCUIT” displayed?
YES
>> Perform CAN Diagnosis as described in DIAGNOSIS section of CONSULT Operation Manual.
NO
>> Refer to
GI-41, "Intermittent Incident"
.
CONSULT Display
DTC Detection Condition
Possible cause
CAN COMM CIRCUIT
[U1000]
When any listed module cannot communicate with CAN
communication 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-33
< DTC/CIRCUIT DIAGNOSIS >
[BCM]
C
D
E
F
G
H
I
J
K
L
B
A
O
P
N
U1010 CONTROL UNIT (CAN)
DTC Logic
INFOID:0000000009467060
DTC DETECTION LOGIC
Diagnosis Procedure
INFOID:0000000009467061
1.
REPLACE BCM
When DTC U1010 is detected, replace BCM.
>> Replace BCM. Refer to
BCS-79, "Removal and Installation"
CONSULT display de-
scription
DTC Detection Condition
Possible cause
CAN COMM CIRCUIT
[U1010]
BCM detected internal CAN communication circuit malfunction.
BCM
BCS-34
< DTC/CIRCUIT DIAGNOSIS >
[BCM]
U0415 VEHICLE SPEED SIG
U0415 VEHICLE SPEED SIG
Description
INFOID:0000000009467062
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:0000000009467063
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 BCM with CONSULT, 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:0000000009467064
1.
ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) SELF DIAGNOSTIC RESULT
Perform Self Diagnostic Result of ABS actuator and electric unit (control unit) with CONSULT. Refer to
.
Is any DTC detected?
YES
>> Perform the trouble diagnosis related to the detected DTC. Refer to
.
NO
>> GO TO 2.
2.
CHECK ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) POWER SUPPLY AND GROUND
CIRCUIT
Check ABS actuator and electric unit (control unit) power and ground. Refer to
.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Repair or replace harness or connectors.
3.
COMBINATION METER SELF DIAGNOSTIC RESULT
Perform Self Diagnostic Result of METER M&A with CONSULT. Refer to
Is any DTC detected?
YES
>> Perform the trouble diagnosis related to the detected DTC. Refer to
.
NO
>> Refer to
GI-41, "Intermittent Incident"
.
DTC
Display contents of
CONSULT
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
• Combination meter
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