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.

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