Nissan Rogue (T33) 2021-Present Service Manual: C1073-01 Vacuum Sensor

Nissan Rogue (T33) 2021-Present Service Manual / Brakes :: Brake Control System / With Vdc :: Dtc/circuit Diagnosis / C1073-01 Vacuum Sensor

DTC Description

DTC DETECTION LOGIC

DTC No.

CONSULT screen terms

(Trouble diagnosis content) 		DTC detection condition
C1073 01

Vacuum sensor

(Vacuum sensor) 		1 Diagnosis condition

  • When ignition switch is ON.

  • When the power supply voltage is normal.
Signal (terminal) Vacuum sensor signal
Threshold When an open circuit is detected in brake vacuum sensor circuit.
Diagnosis delay time 1 second or less
2 Diagnosis condition

  • When ignition switch is ON.

  • When the power supply voltage is normal.
Signal (terminal) Vacuum sensor signal
Threshold When a short circuit is detected in brake vacuum sensor circuit.
Diagnosis delay time 1 second or less
3 Diagnosis condition

  • When ignition switch is ON.

  • When the power supply voltage is normal.
Signal (terminal) Vacuum sensor signal
Threshold When a malfunction is detected in brake vacuum sensor noise.
Diagnosis delay time 1 second or less

POSSIBLE CAUSE

NOTE:

Confirm if DTC is PAST or CRNT. If DTC is CRNT, proceed with Diagnosis Procedure. If DTC is PAST, clear DTC. Do not replace the ABS actuator and electric unit (control unit) for a PAST DTC.

PAST DTC CRNT DTC

  • Harness or connector

  • ABS actuator and electric unit (control unit) power supply system

  • Fuse

  • Fusible link

  • 12V battery

  • Harness or connector

  • Brake vacuum sensor

  • ABS actuator and electric unit (control unit)

  • ABS actuator and electric unit (control unit) power supply system

  • Fuse

  • Fusible link

  • 12V battery

FAIL-SAFE

The following functions are suspended.

Brake assist function

DTC CONFIRMATION PROCEDURE

PRECONDITIONING

If “DTC CONFIRMATION PROCEDURE” has been previously conducted, always ignition switch OFF (Auto ACC function OFF) before conducting the next test.

>>

GO TO 2.

CHECK DTC DETECTION

CONSULT

  1. Ignition switch OFF (Auto ACC function OFF).

  2. Start the engine.

    NOTE:

    Wait at least 10 seconds after start the engine.

  3. Perform self-diagnosis for “ABS”.

Is DTC “C1073-01” detected?

YES-1>>

“CRNT” is displayed: Refer to Diagnosis Procedure.

YES-2>>

“PAST” is displayed: Inspection End (Erase the memory of self-diagnosis results.)

NO-1>>

To check malfunction symptom before repair: Refer to Intermittent Incident.

NO-2>>

Confirmation after repair: Inspection End

Diagnosis Procedure

CHECK CONNECTOR

  1. Disconnect 12V battery negative terminal.

  2. Check the brake vacuum sensor harness connector for disconnection or looseness.

  3. Check the ABS actuator and electric unit (control unit) harness connector for disconnection or looseness.

Is the inspection result normal?

YES>>

GO TO 2.

NO>>

Repair / replace harness or connector. GO TO 2.

CHECK TERMINAL

  1. Disconnect brake vacuum sensor harness connector.

  2. Check the brake vacuum sensor terminals for damage or loose connection with harness connector.

  3. Disconnect ABS actuator and electric unit (control unit) harness connector.

  4. Check the ABS actuator and electric unit (control unit) terminals for damage or loose connection with harness connector.

Is the inspection result normal?

YES>>

GO TO 3.

NO>>

Repair / replace harness, connector, or terminal.

CHECK BRAKE VACUUM SENSOR CIRCUIT

  1. Check the continuity between brake vacuum sensor harness connector and ABS actuator and electric unit (control unit) harness connector.

    Brake vacuum sensor ABS actuator and electric unit (control unit) Continuity
    Connector Terminal Connector Terminal
    E167 1 E125 45 Yes
    2 28
    3 17

  2. Check the continuity between brake vacuum sensor harness connector and ground.

    Brake vacuum sensor — Continuity
    Connector Terminal
    E167 1 Ground No
    2
    3

Is the inspection result normal?

YES>>

GO TO 4.

NO>>

Repair / replace harness or connector.

REPLACE BRAKE VACUUM SENSOR

CONSULT

  1. Connect ABS actuator and electric unit (control unit) harness connector.

  2. Replace the brake vacuum sensor.

    • KR15DDT engine models: Refer to Removal and Installation (KR15DDT).

  3. Connect 12V battery negative terminal.

  4. Erase self-diagnosis result for “ABS”.

  5. Ignition switch OFF (Auto ACC function OFF) → ON → OFF (Auto ACC function OFF).

  6. Start engine.

    NOTE:

    Wait at least 10 seconds after start the engine.

  7. Perform self-diagnosis for “ABS”.

Is DTC “C1073-01” detected?

YES>>

Replace the ABS actuator and electric unit (control unit). Refer to Removal and Installation

NO>>

Inspection End

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