Nissan Sentra B18 (2020-2025) Service Manual: C1083-86 Steering Angle Sensor System

Dtc Description

DTC Description

DTC DETECTION LOGIC

DTC No.	CONSULT screen item (Trouble diagnosis content)		DTC detection condition
C1083-86	Steering angle sensor (Steering angle sensor)	—	Diagnosis condition	When ignition switch is ON. When the power supply voltage is normal.
			Signal (terminal)	CAN communication signal
			Threshold	When a malfunction is detected in steering angle sensor system.
			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 CAN communication line ABS actuator and electric unit (control unit) power supply system Fuse Fusible link 12V battery	Harness or connector CAN communication line Steering angle 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:

• VDC function

• TCS function

• Brake assist function

• Hill start assist function

Confirmation Procedure

Confirmation Procedure

1. 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.

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 “C1083-86” 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

1. CHECK CONNECTOR

   1. 1. Ignition switch OFF.

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

      3. Check the steering angle sensor 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.

2. PERFORM SELF DIAGNOSTIC RESULT (1)

   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 “C1083-86” detected?

   YES>>

   “CRNT” is displayed: GO TO 3.

   NO>>

   Inspection End.

3. CHECK TERMINAL

   1. 1. Ignition switch OFF.

      2. Disconnect the steering angle sensor harness connector.

      3. Check the steering angle sensor pin terminals for damage or loose connection with harness connector.

   Is the inspection result normal?

   YES>>

   GO TO 4.

   NO>>

   Repair / replace harness, connector, or terminal.

4. CHECK CAN COMMUNICATION LINE

   1. 1. Connect steering angle sensor harness connector.

      2. Check the CAN communication line. Refer to Trouble Diagnosis Flow Chart.

   Is the inspection result normal?

   YES>>

   GO TO 5.

   NO>>

   Repair / replace harness or connector.

5. CHECK DATA MONITOR

   1. CONSULT

      1. “ABS”, “Data Monitor” and “STR ANGLE SIG” according to this order.

      2. Check that the indication changes with the steering angle when the steering wheel is turned left/right from the neutral position. Refer to Values On The Diagnosis Tool.

   Is the inspection result normal?

   YES>>

   GO TO 6.

   NO>>

   Replace the steering angle sensor. Refer to Removal and Installation.

6. PERFORM SELF DIAGNOSTIC RESULT (2)

   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 detected?

   YES>>

   Check the DTC. Refer to DTC Index.

   NO>>

   Inspection End.