Nissan Sentra B18 (2020-2025) Service Manual / Steering / Steering Control System :: Dtc/circuit Diagnosis / C161a-86 Abs System

Nissan Sentra B18 (2020-2025) Service Manual: C161a-86 Abs System

Dtc Description

DTC Description

DTC DETECTION LOGIC

DTC No.	CONSULT screen terms (Trouble diagnosis content)	DTC detection condition
C161A-86	ABS system (Anti-lock braking system )	Diagnosis condition	When ignition switch is ON.
		Signal (terminal)	CAN communication signal
		Threshold	When a malfunction is detected in ABS actuator and electric unit (control unit).
		Diagnosis delay time	2 seconds or more

POSSIBLE CAUSE

CAN communication line
ABS actuator and electric unit (control unit)
EPS control unit

FAIL-SAFE

Constant steering assist level

Confirmation Procedure

PRECONDITIONING
1. If “Confirmation Procedure” has been previously conducted, always place the ignition switch OFF and wait at least 10 seconds before conducting the next test.
>>
GO TO 2.
DTC REPRODUCTION PROCEDURE
1. CONSULT
  1. Ignition switch ON.
  2. Select “Self Diagnostic Result” mode of “EPS/DAST 3”.
Is DTC “C161A-86” detected?
YES >>
Proceed to diagnosis procedure. Refer to DTC Diagnosis Procedure.
NO >>
To check malfunction symptom before repair: Refer to Intermittent Incident.
NO >>
Confirmation after repair: Inspection End.

Dtc Diagnosis Procedure

DTC Diagnosis Procedure

PERFORM SELF DIAGNOSTIC RESULT
1. CONSULT
  1. Ignition switch ON.
  2. Select “Self Diagnostic Result” mode of “ABS”.
Is any DTC detected?
YES >>
Check the DTC. Refer to DTC Index.
NO >>
GO TO 2.
CHECK CONNECTOR AND TERMINAL
1. 1. Ignition switch OFF.
  2. Disconnect ABS actuator and electric unit (control unit) harness connector.
  3. Disconnect EPS control unit harness connector.
  4. Check the connector for disconnection or looseness.
  5. Check the pin terminals for damage or loose connection with harness connector.
Is the inspection result normal?
YES >>
GO TO 3.
NO >>
Repair or replace harness, connector, or terminal, securely lock the connector.
PERFORM SELF DIAGNOSTIC RESULT
1. CONSULT
  1. Connect ABS actuator and electric unit (control unit) harness connector.
  2. Connect EPS control unit harness connector.
  3. Ignition switch ON.
  4. Erase "Self Diagnostic Result" mode of "EPS/DAST 3".
  5. Ignition switch OFF and wait for at least 10 seconds.
  6. Ignition switch ON.
  7. Select “Self Diagnostic Result” mode of “EPS/DAST 3”.
Is DTC “C161A-86” detected?
YES>>
EPS control unit is malfunctioning. Replace steering gear column assembly. Refer to Removal and Installation.
NO>>
Inspection End.

Other materials:

Service data and specifications (SDS)
Steering Wheel Steering Angle Steering Column STEERING COLUMN LENGTH TILT MECHANISM OPERATING RANGE Power Steering Gear STEERING OUTER SOCKET AND INNER SOCKET RACK STROKE ...

Avoiding collision and rollover
WARNING Failure to operate the Nissan Sentra in a safe, attentive, and prudent manner may result in loss of vehicle control, a serious accident, or a rollover. Always remain alert and practice defensive driving techniques whenever operating your Nissan Sentra. Strictly obey all traffic laws a ...

System
CVT CONTROL SYSTEM CVT CONTROL SYSTEM : System Diagram CVT CONTROL SYSTEM : System Description DESCRIPTION CVT detects the vehicle driving status from switches, sensors and signals, and controls the vehicle so that the optimum shift position and shift timing may always be achieved ...