Nissan Maxima Service and Repair Manual: C1111 pump motor

Description

PUMP

The pump returns the brake fluid stored in the reservoir to the master cylinder by reducing the pressure.

MOTOR

The motor drives the pump according to the signals transmitted by the ABS actuator and electric unit (control unit).

DTC Logic

DTC DETECTION LOGIC

Nissan Maxima. DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.CHECK SELF-DIAGNOSIS RESULTS

Check the self-diagnosis results.

Nissan Maxima. CHECK SELF-DIAGNOSIS RESULTS

Diagnosis Procedure

Regarding Wiring Diagram information

1.CONNECTOR INSPECTION

  1. Turn ignition switch OFF.
  2. Disconnect ABS actuator and electric unit (control unit) connector.
  3. Check terminals for deformation, disconnection, looseness, and so on. If any malfunction is found, repair or replace terminals.
  4. Reconnect connector and perform self-diagnosis.

2. CHECK ABS MOTOR AND MOTOR RELAY POWER SUPPLY CIRCUIT

Nissan Maxima. CHECK ABS MOTOR AND MOTOR RELAY POWER SUPPLY CIRCUIT

  1. Turn ignition switch OFF.
  2. Disconnect ABS actuator and electric unit (control unit) connector.
  3. Check voltage between ABS actuator and electric unit (control unit) connector E26 terminal 2 and ground.

Nissan Maxima. CHECK ABS MOTOR AND MOTOR RELAY POWER SUPPLY CIRCUIT

3. CHECK ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) GROUND CIRCUIT

Nissan Maxima. CHECK ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) GROUND CIRCUIT

Check continuity between ABS actuator and electric unit (control unit) connector E26 terminals 1, 4 and ground.

Nissan Maxima. CHECK ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) GROUND CIRCUIT

Component Inspection

1.CHECK ACTIVE TEST

  1. On "ACTIVE TEST", select "ABS MOTOR".
  2. Touch "On" and "Off" on screen. Make sure motor relay, actuator relay, V/R output and M/R output operate as shown in table below.

Nissan Maxima. CHECK ACTIVE TEST

Special Repair Requirement

1.ADJUSTMENT OF STEERING ANGLE SENSOR NEUTRAL POSITION

Always perform the neutral position adjustment for the steering angle sensor, when replacing the ABS actuator and electric unit (control unit).

    C1110, C1153, C1170 ABS actuator and electric unit (control unit)
    DTC Logic DTC DETECTION LOGIC DTC CONFIRMATION PROCEDURE 1.CHECK SELF-DIAGNOSIS RESULTS Check the self-diagnosis results. Diagnosis Procedure 1.REPLACE ABS ACTUATOR AND ELECTRIC UNIT (CO ...

    C1114 main relay
    Description Activates or deactivates each solenoid valve according to the signals transmitted by the ABS actuator and electric unit (control unit). DTC Logic DTC DETECTION LOGIC DTC CONFIR ...

    Other materials:

    Door switch
    Description Detects door open/close condition. Component Function Check 1.CHECK FUNCTION With CONSULT Check door switches DOOR SW-DR, DOOR SW-AS in Data Monitor mode with CONSULT. Diagnosis Procedure 1.CHECK DOOR SWITCH INPUT SIGNAL Turn ignition switch OFF. Check signal between B ...

    Combination meter
    Reference Value VALUES ON THE DIAGNOSIS TOOL NOTE: * The monitor will indicate "OFF" even though the brake warning lamp is on if either of the following conditions exist: The parking brake is engaged The brake fluid level is low TERMINAL LAYOUT PHYSICAL VALUES Fail Safe ...

    Shift position indicator circuit
    Description  TCM sends position indicator signals to combination meter via CAN communication line.  The selector lever position is indicated on the shift position indicator. Component Function Check 1.CHECK SHIFT POSITION INDICATOR CAUTION: Always drive vehic ...

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    Nissan Maxima Service and Repair Manual

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