Nissan Sentra B18 (2020-2025) Service Manual: B20e2-96 Led Headlamp Rh

Dtc Description

DTC Description

DTC DETECTION LOGIC

DTC No.	CONSULT screen items (Trouble diagnosis content)		DTC detection condition
B20E2–96	LED HEADLAMP RH (Light emitting diode headlamp right hand)	[CMPNENT INTERNAL MLFNCTN]	Diagnosis condition	When headlamp (LO) ON conditions are satisfied (Smart FET inside IPDM E/R is ON)
			Signal (terminal)	Headlamp warning RH signal circuit
			Threshold	2.2 V or more
			Diagnosis delay time	2 seconds or more

POSSIBLE CAUSE

• Harness or connector

• Front combination lamp RH

  • LED [headlamp (LO)]

  • LED headlamp control module

  • Harness

• IPDM E/R

FAIL-SAFE

Transmits the headlamp warning signal to the combination meter via CAN communication when the headlamp (LO) ON conditions are satisfied. When the ignition switch is placed ON, the headlamp warning is displayed on the information display of the combination meter.

Dtc Confirmation Procedure

DTC Confirmation Procedure

1. CHECK DTC PRIORITY

   1. If DTC B20E2–96 is displayed with DTC B20D1–11 or B20D1–15, first perform the confirmation procedure (trouble diagnosis) for DTC B20D1–11 or B20D1–15.

   Is applicable DTC detected?

   YES >>

   B20D1-11: Refer to DTC Confirmation Procedure.

   YES >>

   B20D1-15: Refer to DTC Confirmation Procedure.

   NO >>

   GO TO 2.

2. PERFORM DTC CONFIRMATION PROCEDURE

   1. CONSULT

      1. Ignition switch ON.

      2. Turn lighting switch 2ND and wait at least 2 seconds or more.

      3. Select “Self Diagnostic Result” mode of “IPDM E/R".

      4. Check DTC.

   Is DTC detected?

   YES>>

   Refer to DTC Diagnosis Procedure.

   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 HEADLAMP (LO) RH OPERATION

   1. CONSULT

      1. Ignition switch ON.

      2. Select “HEADLAMP (LO)” in “Active Test” mode of “IPDM E/R”.

      3. With operating the test item, check that the headlamp (LO) RH is turned ON.

         On	: Headlamp (LO) RH ON
         Off	: Headlamp (LO) RH OFF

   Is the inspection result normal?

   YES >>

   GO TO 2.

   NO >>

   Refer to Diagnosis Procedure.

2. CHECK HEADLAMP WARNING RH SIGNAL

   1. 1. Disconnect front combination lamp RH connector.

      2. Check voltage between front combination lamp RH harness connector and ground.

         +		-	Voltage (Approx.)
         Front combination lamp RH
         Connector	Terminal
         E38	7	Ground	Battery voltage

   Is the inspection result normal?

   YES >>

   Replace front combination lamp RH. Refer to Removal and Installation.

   NO >>

   GO TO 3.

3. CHECK HEADLAMP WARNING RH SIGNAL CIRCUIT

   1. 1. Ignition switch OFF.

      2. Disconnect IPDM E/R connector and front combination lamp RH connector.

      3. Check continuity between front combination lamp RH harness connector and IPDM E/R harness connector.

         Front combination lamp RH		IPDM E/R		Continuity
         Connector	Terminal	Connector	Terminal
         E38	7	E44	60	Yes

      4. Check continuity between front combination lamp RH harness connector and ground.

         Front combination lamp RH		—	Continuity
         Connector	Terminal
         E38	7	Ground	No

   Is the inspection result normal?

   YES>>

   Replace IPDM E/R. Refer to Removal and Installation.

   NO>>

   Repair or replace harness.