Nissan Sentra B18 (2020-2025) Service Manual: C1f41-62 Cvt

Dtc Description

DTC Description

DTC DETECTION LOGIC

DTC		CONSULT screen terms (Trouble diagnosis content)	DTC detection condition
C1F41	62	CVT CIRCUIT (Continuously variable transaxle/transmission circuit)	Diagnosis condition	When AEB system is ON When driving the Nissan Sentra vehicle at 10 km/h (6 MPH) or faster for approximately 15 minutes or more.
			Signal (terminal)	CAN communication signal
			Threshold	A mismatch between an current gear position signal transmitted from TCM via CAN communication and a gear position calculated by the ADAS control unit 2 continues
			Diagnosis delay time	Approximately 11 minutes or more

POSSIBLE CAUSE

• Input speed sensor

• Output speed sensor

• TCM

FAIL-SAFE

The following systems are canceled.

• Nissan Sentra Vehicle-to-vehicle distance control mode

• Conventional (fixed speed) cruise control mode

• AEB

• LDW

• TSR

• BSW

• RCTA

• RAB

Confirmation Procedure

Confirmation Procedure

1. CHECK DTC PRIORITY

   If DTC “C1F41–62” is displayed with Network-DTC or “C1F48–62”, or “C1F48–29” first diagnose the Network-DTC or “C1F48–62”, or “C1F48–29”

   Is applicable DTC detected?

   YES >>

   Perform diagnosis of applicable.

   • Network-DTC: DTC Index

   • C1F48–62: DTC Description

   • C1F48–29: DTC Description

   NO >>

   GO TO 2 .

2. CHECK TCM SELF-DIAGNOSIS RESULTS

   Check if any DTC is detected in "Self Diagnostic Result" of "TCM"

   Is any DTC detected?

   YES >>

   Perform diagnosis on the detected DTC and repair or replace the malfunctioning parts. DTC Index

   NO >>

   GO TO 3 .

3. PERFORM DTC CONFIRMATION PROCEDURE

   1. Start the engine.

   2. Turn the AEB system ON.

   3. Drive the Nissan Sentra vehicle at 10 km/h (6 MPH) or faster for approximately 15 minutes or more.

      Note:

      All 15 minutes should be driven by D range. If the driver changes to another shift position in-between, 15 minute will be reset.

      CAUTION:

      Always drive safely.

   4. Stop the Nissan Sentra vehicle.

   Is “C1F41–62” detected as the current malfunction?

   YES >>

   DTC Diagnosis Procedure

   NO-1 >>

   To check malfunction symptom before repair: Intermittent Incident

   NO-2 >>

   Confirmation after repair: INSPECTION END

Dtc Diagnosis Procedure

DTC Diagnosis Procedure

1. CHECK DTC PRIORITY

   If DTC “C1F41–62” is displayed with Network-DTC, “C1F48–62”, or “C1F48–29” first diagnose the Network-DTC, “C1F48–62”, or “C1F48–29”

   Is applicable DTC detected?

   YES >>

   Perform diagnosis of applicable.

   • Network-DTC: DTC Index

   • C1F48–62: DTC Description

   • C1F48–29: DTC Description

   NO >>

   GO TO 2 .

2. CHECK TCM SELF-DIAGNOSIS RESULTS

   1. Perform “All DTC Reading”.

   2. Check if any DTC is detected in “Self Diagnostic Result” of “TRANSMISSION”.

   Is any DTC detected?

   YES >>

   Perform diagnosis on the detected DTC and repair or replace the malfunctioning parts. DTC Index

   NO >>

   GO TO 3 .

3. CHECK ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) SELF-DIAGNOSIS RESULTS

   1. Perform “All DTC Reading”.

   2. Check if any DTC is detected in “Self Diagnostic Result” of “ABS”.

   Is any DTC detected?

   YES >>

   Perform diagnosis on the detected DTC and repair or replace the malfunctioning parts. DTC Index

   NO >>

   Replace the ADAS control unit 2. Removal and Installation