Nissan Sentra manuals

Nissan Sentra Service Manual: C1121, C1123, C1125, C1127 ABS OUT Valve system

Nissan Sentra Service Manual / Brakes / Brake control system / Dtc/circuit diagnosis / C1121, C1123, C1125, C1127 ABS OUT Valve system

DTC Logic

DTC DETECTION LOGIC

DTC DETECTION LOGIC

Display Item

Malfunction detected condition

Possible causes

C1121 FR LH OUT ABS SOL When a malfunction is detected in front LH ABS OUT valve.
  • Harness or connector
  • ABS actuator and electric unit (control unit)
  • Fusible link
  • Battery power supply system
C1123 FR RH OUT ABS SOL When a malfunction is detected in front RH ABS OUT valve.
C1125 RR LH OUT ABS SOL When a malfunction is detected in rear LH ABS OUT valve.
C1127 RR RH OUT ABS SOL When a malfunction is detected in rear RH ABS OUT valve.

DTC CONFIRMATION PROCEDURE

1.CHECK SELF DIAGNOSTIC RESULT

With CONSULT


  1. Turn ignition switch ON.

  2. Perform self diagnostic result.

Is DTC C1121, C1123, C1125 or C1127 detected? YES >> Proceed to diagnosis procedure. Refer to BRC-74, "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.

C1120, C1122, C1124, C1126 ABS In valve system
DTC Logic Dtc detection logic DTC Display Item Malfunction detected condition Possible causes C1120 FR LH IN ABS SOL When a malfunction is detected in front LH ABS IN ...

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. ...

Other materials:

Overdrive control switch
Component Function Check 1.CHECK SPORT INDICATOR LAMP FUNCTION Check OD OFF indicator lamp turns ON for approx. 2 seconds when ignition switch turns ON. Is the inspection result normal? YES >> GO TO 2. NO >> Go to TM-239, "Diagnosis Procedure". 2.CHECK SPORT MODE SW ...

Diagnosis and repair work flow
Work Flow 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 ...

Read first—then drive safely
FOREWORD Welcome to the growing family of new NISSAN owners. This vehicle is delivered to you with confidence. It was produced using the latest techniques and strict quality control. This manual was prepared to help you understand the operation and maintenance of your vehicle so that you ma ...

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