Nissan Sentra B18 (2020-2025) Service Manual: C1f02-16 Power Supply Circuit

Dtc Description

DTC Description

DTC DETECTION LOGIC

DTC		CONSULT screen terms (Trouble diagnosis content)	DTC detection condition
C1F02	16	POWER SUPPLY CIR (Power supply circuit)	Diagnosis condition	When engine is running When AEB system is ON
			Signal (terminal)	Battery power supply
			Threshold	The battery voltage sent to ADAS control unit 2 remains less than 7.9 V
			Diagnosis delay time	5 seconds or more

POSSIBLE CAUSE

• Connector, harness, fuse

• ADAS control unit 2

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

• I-DA

• RCTA

• I-FCW

• RAB

Confirmation Procedure

Confirmation Procedure

1. PERFORM DTC CONFIRMATION PROCEDURE

   1. Start the engine.

   2. Turn the AEB system ON.

   3. Perform “All DTC Reading” with CONSULT.

   4. Check if the “C1F02-16” is detected as the current malfunction in “Self Diagnostic Result” of “ICC/ADAS 2”.

   Is “C1F02-16” 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 ADAS CONTROL UNIT 2 POWER SUPPLY AND GROUND CIRCUIT

   Check power supply and ground circuit of ADAS control unit 2. Refer to Diagnosis Procedure.

   Is the inspection result normal?

   YES >>

   Replace the ADAS control unit 2. Removal and Installation.

   NO >>

   Repair or replace the malfunctioning parts.