Nissan Versa (N17): C1121, C1123, C1125, C1127 ABS Out valve system

Nissan Versa 2nd generation (N17) Service Manual / Brakes / Brake control system (BRC) / C1121, C1123, C1125, C1127 ABS Out valve system

DTC Logic

DTC DETECTION LOGIC   

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 "Diagnosis Procedure".

NO >> Inspection End.

Diagnosis Procedure

Regarding Wiring Diagram information, refer to BRC "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?

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?

YES >> Replace ABS actuator and electric unit (control unit). Refer to BRC "Removal and Installation".

NO >> Repair or replace malfunctioning components.

Other materials:

P0734 4GR Incorrect ratio
Description This malfunction is detected when the A/T does not shift into 4GR position as instructed by TCM. This is not only caused by electrical malfunction (circuits open or shorted) but by mechanical malfunction such as control valve sticking, improper solenoid valve operation, etc. DTC ...

Oil
Description MAINTENANCE OF OIL LEVEL The compressor oil is circulating in the system together with the refrigerant. It is necessary to fill compressor with oil when replacing A/C system parts or when a large amount of refrigerant leakage is detected. It is important to always maintain oil l ...

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