Nissan Sentra Service Manual: Ecu diagnosis information
Abs actuator and electric unit (control unit)
Reference Value
VALUES ON THE DIAGNOSIS TOOL
CAUTION:
The display shows the control unit calculation data, so a normal value might be displayed even in the event the output circuit (harness) is open or short-circuited.
Note 1:
Confirm tire pressure is normal. Note 2
: On and off timing for warning lamps and indicator lamps.
-
Refer to BRC-22, "VDC/TCS/ABS : VDC Function".
-
Refer to BRC-24, "VDC/TCS/ABS : TCS Function".
-
Refer to BRC-26, "VDC/TCS/ABS : ABS Function".
-
Refer to BRC-27, "VDC/TCS/ABS : EBD Function".
Fail-safe
VDC AND TCS FUNCTIONS
VDC warning lamp in combination meter turns ON when a malfunction occurs in system [ABS actuator and electric unit (control unit)]. The control is suspended for VDC and TCS functions. However, ABS and EBD functions operate normally.
ABS FUNCTION
ABS warning lamp and SLIP indicator lamp in combination meter turn ON when a malfunction occurs in system [ABS actuator and electric unit (control unit)]. The control is suspended for VDC, TCS and ABS functions.
However, EBD functions operate normally.
EBD FUNCTION
ABS warning lamp, brake warning lamp and SLIP indicator lamp in combination meter turn ON when a malfunction occurs in system [ABS actuator and electric unit (control unit)]. The control is suspended for VDC, TCS, ABS and EBD functions.
DTC Inspection Priority Chart
When multiple DTCs are displayed simultaneously, check each one using the following priority list.
DTC Index
Diagnosis system [abs actuator and electric unit (control
unit)]
CONSULT Function (ABS)
FUNCTION
CONSULT can display each diagnostic item using the following
direct diagnostic modes.
Direct Diagnostic Mode
Description
ECU identification
T ...
Wiring diagram
Brake control system
Wiring Diagram
...
Other materials:
Dlc branch line circuit
Diagnosis procedure
1.Check connector
Turn the ignition switch off.
Disconnect the battery cable from the negative terminal.
Check the terminals and connectors of the data link connector for
damage, bend and loose connection
(connector side and harness side).
Is the inspection resul ...
BCM branch line circuit
Diagnosis procedure
1.Check connector
Turn the ignition switch off.
Disconnect the battery cable from the negative terminal.
Check the terminals and connectors of the bcm for damage, bend and loose
connection (unit side and
connector side).
Is the inspection result normal?
Yes > ...
Turn signal switch
Turn signal
Move the lever up or down to signal the
turning direction. When the turn is completed,
the turn signal cancels automatically.
Lane change signal
To signal a lane change, move the lever up or
down to the point where the indicator light
begins to flash, but the lever ...
