Nissan Sentra manuals

Nissan Sentra Service Manual: System

EPS system

EPS SYSTEM : System Description

SYSTEM DIAGRAM

DESCRIPTION


DESCRIPTION

EPS Warning lamp indication


EPS Warning lamp indication

CAUTION:


CAUTION:

EPS warning lamp also turns ON due to data reception error, CAN communication error etc.

EPS SYSTEM : Fail-Safe

EPS SYSTEM : Protection Function

EPS control unit decreases the output signal to EPS motor while extremely using the power steering function (e.g., full steering) consecutively for protecting EPS motor and EPS control unit (Overload protection control).

While activating overload protection control, the assist torque gradually decreases, and the steering wheel turning force becomes heavy. The normal assist torque is recovered if the steering wheel is not turned for a while.

Warning/indicator/chime list

WARNING/INDICATOR/CHIME LIST : Warning Lamp/Indicator Lamp

Diagnosis system (EPS control unit)


Component parts
Component Parts Location EPS control unit (view with steering column removed from vehicle) EPS motor (view with steering column removed from vehicle) Torque sensor (view with ...

Diagnosis system (EPS control unit)
CONSULT Function FUNCTION CONSULT can display each diagnostic item using the diagnostic test modes shown following. Diagnostic test mode Function ECU identification The part ...

Other materials:

Removal and installation
BCM Removal and installation Note: Before replacing BCM, perform “READ CONFIGURATION” to save or print current vehicle specification. Refer to BCS-61, "CONFIGURATION (BCM) : Description". Removal Disconnect the negative battery terminal. Refer to pg-52, "removal a ...

P0128 Thermostat function
DTC Logic DTC DETECTION LOGIC NOTE: If DTC P0128 is displayed with DTC P0300, P0301, P0302, P0303 or P0304, first perform the trouble diagnosis for P0300, P0301, P0302, P0303 or P0304. Refer to EC-269, "DTC Logic". Engine coolant temperature has not risen enough to open the thermost ...

P1551, P1552 Battery current sensor
DTC Logic DTC DETECTION LOGIC DTC No. CONSULT screen terms (Trouble diagnosis content) DTC detecting condition Possible cause P1551 BAT CURRENT SENSOR (Battery current sensor) An excessively low voltage from the sensor is sent to ECM. Harness or ...

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