Nissan Sentra manuals

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 1:

Confirm tire pressure is normal. Note 2

: On and off timing for warning lamps and indicator lamps.

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


DTC Inspection Priority Chart

When multiple DTCs are displayed simultaneously, check each one using the following priority list.

DTC Index


DTC Index


Wiring diagram


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:

Steering gear and linkage
Inspection INSPECTION AFTER DISASSEMBLY BOOT Check boot for cracks. Replace if any damage is found. STEERING GEAR ASSEMBLY HOUSING Check steering gear assembly housing for damage and scratches. Replace if there are any abnormal conditions. OUTER SOCKET AND INNER SOCKET B ...

P0139 HO2S2
DTC Logic DTC DETECTION LOGIC The heated oxygen sensor 2 has a much longer switching time between rich and lean than the air fuel ratio (A/F) sensor 1. The oxygen storage capacity of the three way catalyst 1 causes the longer switching time. To judge the malfunctions of heated oxygen sensor 2, ...

C1604 Torque sensor
DTC Logic DTC DETECTION LOGIC DTC Display item Malfunction detected condition Possible cause C1604 TORQUE SENSOR When torque sensor output signal is malfunctioning Harness or connector Torque sensor EPS control unit DTC CONFIRMATION ...

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