Nissan Sentra B18 (2020-2025) Service Manual / Brakes / Brake Control System :: Vdc/tcs/abs / Dtc/circuit Diagnosis / C1040-04 Cut Valve

Nissan Sentra B18 (2020-2025) Service Manual: C1040-04 Cut Valve

Dtc Description

DTC Description

DTC DETECTION LOGIC

DTC No.	CONSULT screen item (Trouble diagnosis content)		DTC detection condition
C1040-04	Cut valve 1 (Cut valve 1)	—	Diagnosis condition	When ignition switch is ON. When the power supply voltage is normal.
			Signal (terminal)	—
			Threshold	When a malfunction is detected in cut valve 1.
			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 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:

VDC function
TCS function
ABS function
EBD function
Brake assist function
Hill start assist function

Confirmation Procedure

Confirmation Procedure

PRECONDITIONING
1. If “Confirmation Procedure” has been previously conducted, always place the ignition switch in the OFF position and wait at least 10 seconds before conducting the next test.
>>
GO TO 2.
CHECK DTC DETECTION
1. CONSULT
  1. Ignition switch OFF.
    Note:
    Wait at least 10 seconds after placing ignition switch in the OFF position.
  2. Start the engine.
    Note:
    Wait at least 10 seconds after start the engine.
  3. Select "Self Diagnostic Result" mode of "ABS".
Is DTC “C1040-04” detected?
YES >>
“CRNT” is displayed: Refer to DTC Diagnosis Procedure.
YES >>
“PAST” is displayed: Inspection End. (Erase "Self Diagnostic Result" mode of "ABS".)
NO >>
To check malfunction symptom before repair: Refer to Intermittent Incident.
NO >>
Confirmation after repair: Inspection End.

Dtc Diagnosis Procedure

DTC Diagnosis Procedure

CHECK CONNECTOR
1. 1. Ignition switch OFF.
  2. Check the ABS actuator and electric unit (control unit) harness connector for disconnection or looseness.
Is the inspection result normal?
YES >>
GO TO 3.
NO >>
Repair / replace harness or connector, securely lock the connector, and GO TO 2.
PERFORM SELF DIAGNOSTIC RESULT
1. CONSULT
  1. Ignition switch OFF.
    Note:
    Wait at least 10 seconds after placing ignition switch in the OFF position.
  2. Start the engine.
    Note:
    Wait at least 10 seconds after start the engine.
  3. Select "Self Diagnostic Result" mode of "ABS".
Is DTC “C1040-04” detected?
YES >>
GO TO 3.
NO >>
Inspection End.
CHECK ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) POWER SUPPLY AND GROUND CIRCUIT
1. Check the ABS actuator and electric unit (control unit) power supply and ground circuit. Refer to Diagnosis Procedure.
Is the inspection result normal?
YES>>
GO TO 4.
NO>>
Repair / replace harness, connector, fuse, or fusible link.
CHECK TERMINAL
1. Check the ABS actuator and electric unit (control unit) pin terminals for damage or loose connection with harness.
Is the inspection result normal?
YES >>
Replace the ABS actuator and electric unit (control unit). Refer to Removal and Installation.
NO >>
Repair / replace harness, connector, or terminal.

 Dtc/circuit Diagnosis

 C1051-04 Pump Motor

Dtc Description DTC Description DTC DETECTION LOGIC DTC No. CONSULT screen item (Trouble diagnosis content) DTC detection condition C1051-04 Pump motor (Pump motor) — Diagnosi...

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