Nissan Sentra B18 (2020-2025) Service Manual: C106b-64 Stop Lamp Switch

Dtc Description

DTC DETECTION LOGIC

POSSIBLE CAUSE

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.

FAIL-SAFE

The following functions are suspended:

• VDC function

• TCS function

• Brake assist function

• Hill start assist function

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, and wait 10 seconds or more.

      2. Start the engine.

         Note:

         Stop the Nissan Sentra vehicle.

      3. Wait 1 minute or more.

         Note:

         Never depress brake pedal.

      4. Depress brake pedal by 3.94 in (100 mm) or more, and maintain at that position for a minimum of 1 minute or more.

      5. Release brake pedal, and wait 1 minute or more.

      6. Ignition switch OFF.

         Note:

         Wait at least 10 seconds after placing ignition switch in the OFF position.

      7. Start the engine.

         Note:

         Wait at least 10 seconds after start the engine.

      8. Select "Self Diagnostic Result" mode of "ABS".

   Is DTC “C106B-64” 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

1. CHECK BCM SYSTEM

   1. CONSULT

      Select "Self Diagnostic Result" mode of "BCM". Refer to Diagnosis Description.

   Is DTC detected?

   YES >>

   Check the DTC. Refer to DTC Index.

   NO >>

   GO TO 2.

2. CHECK CONNECTOR AND TERMINAL

   1. 1. Ignition switch OFF.

      2. Disconnect BCM harness connector.

      3. Disconnect ABS actuator and electric unit (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 / replace harness, connector, or terminal, securely lock the connector, and GO TO 3.

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

   1. CONSULT

      1. Connect BCM harness connector.

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

      3. Erase "Self Diagnostic Result" mode of “ABS””.

      4. Ignition switch OFF.

         Note:

         Wait at least 10 seconds after placing ignition switch in the OFF position.

      5. Start the engine.

         Note:

         Wait at least 10 seconds after Start the engine.

      6. Select "Self Diagnostic Result" mode of "ABS".

   Is DTC “C106B-64” detected?

   YES >>

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

   NO >>

   Inspection End.

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