Nissan Sentra manuals

Nissan Sentra Service Manual: C1140 Actuator relay system

DTC Logic

DTC DETECTION LOGIC

DTC

Display Item

Malfunction detected condition

Possible causes

C1140

ACTUATOR RLY

When a malfunction is detected in actuator relay.

  • Harness or connector

  • ABS actuator and electric unit (control unit)

  • Fusible link

  • Battery power supply system

DTC CONFIRMATION PROCEDURE

1.CHECK SELF DIAGNOSTIC RESULT

With CONSULT


  1. Turn ignition switch ON.
  2. Perform self diagnostic result.

Is DTC C1140 detected? YES >> Proceed to diagnosis procedure. Refer to BRC-77, "Diagnosis Procedure".

NO >> Inspection End.

Diagnosis Procedure

Regarding Wiring Diagram information, refer to BRC-44, "Wiring Diagram".

1.CONNECTOR INSPECTION

  1. Turn ignition switch OFF.

  2. Disconnect ABS actuator and electric unit (control unit) connector.

  3. Check connector and terminals for deformation, disconnection, looseness or damage.

Is the inspection result normal? YES >> GO TO 2.

NO >> Repair or replace as necessary.

2.Check ABS Actuator and electric unit (control unit) battery power supply

Check voltage between ABS actuator and electric unit (control unit) connector E33 terminal 25 and ground.

Is the inspection result normal?


Is the inspection result normal? YES >> GO TO 3.

NO >> Repair or replace malfunctioning components.

3.Check abs actuator and electric unit (control unit) ground circuit

Check continuity between ABS actuator and electric unit (control unit) connector E33 terminals 13, 38 and ground.

Is the inspection result normal?


Is the inspection result normal? YES >> Replace ABS actuator and electric unit (control unit). Refer to BRC-110, "Removal and Installation".

NO >> Repair or replace malfunctioning components.

C1130 Engine signal
DTC Logic DTC DETECTION LOGIC DTC Display Item Malfunction detected condition Possible causes C1130 ENGINE SIGNAL 1 When a malfunction is detected in ECM system. ...

C1142 Press sensor
DTC Logic DTC DETECTION LOGIC DTC Display Item Malfunction detected condition Possible causes C1142 PRESS SEN CIRCUIT When a malfunction is detected in master cylinde ...

Other materials:

Warning signals
To help prevent the vehicle from moving unexpectedly by erroneous operation of the Intelligent Key or to help prevent the vehicle from being stolen, a chime or buzzer sounds from inside and outside the vehicle and a warning light comes on in the instrument panel. When a chime or beep sounds ...

Precautions on cruise control
ACCEL/RES switch COAST/SET switch CANCEL switch ON·OFF switch If the cruise control system malfunctions, it cancels automatically. The CRUISE indicator light in the instrument panel then blinks to warn the driver, see “Warnings/Indicator Lights and Audible Reminders” ...

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 ...

© 2014-2025 Copyright www.nisentra.com