Nissan Rogue (T33) 2021-Present Service Manual: B20a2-87 Headlamp (rh) Lin Communication
DTC Description
DTC DETECTION LOGIC
| DTC No. |
CONSULT screen items (Trouble diagnosis content) | DTC detection condition | ||
|---|---|---|---|---|
| B20A2–87 |
Headlamp (RH) LIN communication [Headlamp (right hand) local interconnect network communication] |
[MISSING MESSAGE] | Diagnosis condition | Ignition switch ON |
| Signal (terminal) | Headlamp RH LIN communication | |||
| Threshold | Detected headlamp RH LIN communication error | |||
| Diagnosis delay time | 1 second or less | |||
POSSIBLE CAUSE
-
Harness or connector
-
Front combination lamp RH
-
LED headlamp control module
-
Harness
-
-
IPDM E/R
FAIL-SAFE
-
Transmits the headlamp warning signal (CAN communication) to the combination meter (when the ignition switch is placed ON, the headlamp warning is displayed on the information display of the combination meter).
-
Transmits the request signal (via LIN communication) to the both side LED headlamp control module, and turns ON the headlamp (LO) and parking lamp.
DTC CONFIRMATION PROCEDURE
PERFORM DTC CONFIRMATION PROCEDURE
CONSULT
-
Ignition switch ON.
-
Select “Self diagnosis result” mode of “IPDM E/R”.
-
Check DTC.
Is DTC detected?
YES>>Refer to DTC Diagnosis Procedure.
NO-1>>To check malfunction symptom before repair: Refer to Intermittent Incident.
NO-2>>Confirmation after repair: Inspection End.
DTC Diagnosis Procedure
CHECK SELF-DIAG RESULT
CONSULT
-
Ignition switch ON
-
Select “Self diagnosis result” mode of “IPDM E/R”.
-
Check if DTC "B20A2–87" is displayed with DTC "B20A4–87".
Is applicable DTC detected?
YES>>GO TO 2.
NO>>GO TO 3.
CHECK HEADLAMP RH LIN COMMUNICATION CIRCUIT 1
-
Ignition switch OFF.
-
Disconnect following connectors:
-
Front combination lamp RH
-
Front combination lamp LH
-
IPDM E/R
-
-
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 E110 2 E120 38 Yes -
Check continuity between IPDM E/R harness connector and ground.
IPDM E/R — Continuity Connector Terminal M120 38 Ground No
Is the inspection result normal?
YES>>Replace IPDM E/R. Refer to Removal and Installation.
NO>>Repair or replace harness.
CHECK HEADLAMP RH FUSE
-
Ignition switch OFF.
-
Check that the following fuse is not blown (open):
Unit Location Fuse No. Capacity Battery power supply Fuse and fusible link box 1 K 15 A
Is the fuse blown (open)?
YES>>Replace the blown (open) fuse after repairing the affected circuit if a fuse is blown (open).
NO>>GO TO 4.
CHECK HEADLAMP RH POWER SUPPLY
-
Disconnect front combination lamp RH connector
-
Check voltage between front combination lamp RH harness connector and ground.
+ - Voltage
(Approx.)Front combination lamp RH Connector Terminal E110 1 Ground Battery voltage
Is the inspection result normal?
YES>>GO TO 5.
NO>>Repair or replace harness.
CHECK HEADLAMP RH GROUND CIRCUIT
Check continuity between front combination lamp RH harness connector and ground.
| Front combination lamp RH | — | Continuity | |
|---|---|---|---|
| Connector | Terminal | ||
| E110 | 6 | Ground | Yes |
Is the inspection result normal?
YES>>GO TO 6.
NO>>Repair or replace harness.
CHECK HEADLAMP RH CONTROL SIGNAL
-
Ignition switch ON.
-
Check voltage between front combination lamp RH harness connector and ground.
+ - Voltage
(Approx.)Front combination lamp RH Connector Terminal E110 5 Ground Battery voltage
Is the inspection result normal?
YES>>GO TO 8.
NO>>GO TO 7.
CHECK HEADLAMP RH CONTROL SIGNAL CIRCUIT
-
Ignition switch OFF.
-
Disconnect IPDM E/R connector.
-
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 E110 5 E218 62 Yes
Is the inspection result normal?
YES>>Replace IPDM E/R. Refer to Removal and Installation.
NO>>Repair or replace harness.
CHECK HEADLAMP RH LIN COMMUNICATION CIRCUIT 2
-
Ignition switch OFF.
-
Disconnect IPDM E/R connector.
-
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 E110 2 E120 38 Yes
Is the inspection result normal?
YES>>Replace front combination lamp RH. Refer to Removal and Installation.
NO>>Repair or replace harness.
Other materials:
Vdc Off Indicator Lamp
Component Function Check
CHECK VDC OFF INDICATOR LAMP FUNCTION (1)
Check that VDC OFF indicator lamp in combination meter turns ON for approximately 1 second after ignition switch is ON.
CAUTION:
Never start engine.
Is the inspection result normal?
YES>>
GO TO 2.
NO>>
Refer ...
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