Nissan Sentra B18 (2020-2025) Service Manual: C1f04-48 Brake Sw/stop Lamp Sw

Dtc Description

DTC Description

DTC DETECTION LOGIC

DTC		CONSULT screen terms (Trouble diagnosis content)	DTC detection condition
C1F04	48	BRAKE SW/STOP L SW (Brake switch/Stop lamp switch)	Diagnosis condition	When engine is running
			Signal (terminal)	—
			Threshold	AEB system operated 3 times within ignition switch ON.
			Diagnosis delay time	1 second or less

Note:

If “C1F04-48” detected, perform the AEB system action test and AEB system operates normally.

POSSIBLE CAUSE

AEB system operated 3 times within ignition switch ON.

FAIL-SAFE

The following systems are canceled.

• AEB

Confirmation Procedure

Confirmation Procedure

1. PERFORM DTC CONFIRMATION PROCEDURE

   1. Start the engine.

   2. Perform “All DTC Reading” with CONSULT.

   3. Check if the “C1F04-48” is detected as the current malfunction in “Self Diagnostic Result” of “ICC/ADAS 2”.

   Is “C1F04-48” 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 SELF-DIAGNOSIS RESULTS

   1. Turn ignition switch OFF.

   2. Turn ignition switch ON.

   3. Perform “All DTC Reading” with CONSULT.

   4. Check if any DTC other than “C1F04-48” is detected in “Self Diagnostic Result” of “ICC/ADAS 2”.

   Is any DTC detected?

   YES >>

   Replace the ADAS control unit 2. Removal and Installation

   NO >>

   Perform the distance sensor alignment. Work Procedure