LT-001.pdf part of Nissan Micra [ver. K12] K_lighting_system_©_.part01.rar, Service Manual Lighting System - [Tot. File 23.6Mb] Part 1/3

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INTERIOR ROOM LAMP INTERIOR ROOM LAMP Wiring Diagram -- INT/L --
To ESM

MKWA1450E

LT-1

INTERIOR ROOM LAMP

MKWA0832E

LT-2

INTERIOR ROOM LAMP

MKWA3085E

LT-3

INTERIOR ROOM LAMP Room Lamp Does Not Operate

1. CHECK SWITCH SIGNAL
Select BCM on CONSULT-II.Check following item in "DATA MONITOR" mode with CONSULT-II.
Monitor item IGN ON SW Condition Ignition switch is in ON position Ignition switch is in other position PUSH SW Ignition knob is pushed Ignition knob is released KEY IN SW Key is inserted Key is removed DOOR SW-DR Front RH door is opened Front RH door is closed DOOR SW-AS Front LH door is opened Front LH door is closed DOOR SW-RR Rear RH door is opened Rear RH door is closed DOOR SW-RL Rear LH door is opened Rear LH door is closed BACK DOOR SW Back door is opened Back door is closed CDL LOCK SW Lock/unlock switch lock position Lock/unlock switch unlock position CDL UNLOCK SW KEYLESS LOCK (*2) KEYLESS UNLOCK (*2) I-KEY LOCK (*1) Lock/unlock switch unlock position Lock/unlock switch lock position Keyless lock/unlock switch lock position Keyless lock/unlock switch unlock position Keyless lock/unlock switch unlock position Keyless lock/unlock switch lock position Intelligent Key lock/unlock switch lock position Intelligent Key lock/unlock switch unlock position I-KET UNLOCK (*1) Intelligent Key lock/unlock switch unlock position Intelligent Key lock/unlock switch lock position I-KEY ALL UNL (*1) Intelligent Key all door unlock switch unlock position Intelligent Key all door unlock switch lock position *1: Display for models with Intelligent Key system *2: Displayed for models without Intelligent Key system ON OFF ON OFF ON OFF ON OFF ON OFF ON OFF ON OFF ON OFF ON OFF ON OFF ON OFF ON OFF ON OFF ON OFF ON OFF

To ESM

MKIB0846E

OK or NG OK >> GO TO 2. NG >> q IGN ON SW: Refer to DI-110, "Ignition ON Signal Check" on ESM. q PUSH SW (with Intelligent Key system): Refer to DI-107, "Key Switch Signal Check/With Intelligent Key System" on ESM. q KEY IN SW (without Intelligent Key system): Refer to DI-105, "Key Switch Signal Check/Without Intelligent Key System" on ESM. q OOR SW-DR: Refer to BL-58, "DRIVER SIDE" on ESM. q DOOR SW-AS: Refer to BL-60, "PASSENGER SIDE" on ESM.

LT-4

INTERIOR ROOM LAMP
q q q q q q q

DOOR SW-RR: Refer to BL-64, "REAR RH SIDE" on ESM. DOOR SW-RL: Refer to BL-62, "REAR LH SIDE" on ESM. BACK DOOR SW: Refer to BL-66, "Check External Back Door Release Switch" on ESM. CDL LOCK/UNLOCK SW: Refer to BL-50, "Check Door Lock / Unlock Switch" on ESM. KEYLESS LOCK/UNLOCK: Refer to BL-144, "Remote controller Check" on ESM. I-KEY LOCK/UNLOCK: Refer to BL-194, "Check Door Request Switch" on ESM. I-KEY ALL UNL: Refer to BL-194, "Check Door Request Switch" on ESM.

2. CHECK BCM OUTPUT SIGNAL
1. 2. Interior room lamp switch is in DOOR position. Check voltage between BCM and ground.
Terminal (+) Connector Terminal (Wire color) (-) Condition Voltage (V)

Ignition switch OFF M50 73 (PU) Ground --

Key is inserted

Any door switch

ON (open) OFF (closed)

Approx. 0
MKIB0755E

Approx. 12

Close all doors.

Key is removed after being fully inserted. Turn ignition switch ON.

Approx. 0

Approx. 12

OK or NG OK >> GO TO 3. NG >> Replace BCM.

3. CHECK INTERIOR ROOM LAMP INPUT SIGNAL CIRCUIT
1. 2. 3. Turn ignition switch OFF. Disconnect BCM connector and room lamp connector. Check continuity between BCM harness connector M50 terminal 73(PU) and interior room lamp harness connector R2 terminal 4(PU). Continuity should exist. 4. Check continuity between BCM connector M50 terminal 73 (PU) and ground. Continuity should not exist. OK or NG OK >> GO TO 4. NG >> Repair or replace harness or connector.
MKIB1732E

LT-5

INTERIOR ROOM LAMP

4. CHECK INTERIOR ROOM LAMP GROUND CIRCUIT
1. Check continuity between BCM connector M48 terminal 21(Y) and interior room lamp connector R2 terminal 1 (Y). Continuity should exist. 2. Check continuity between BCM connector M48 terminal 21 (Y) and ground. Continuity should not exist. OK or NG OK >> GO TO 5. NG >> Repair or replace harness or connector.

MKIB1733E

5. CHECK BCM OUTPUT SIGNAL
1. 2. 3. Interior room lamp switch is in DOOR position. Connect BCM connector Check voltage between BCM connector terminal and ground.

MKIB1720E

Terminal No.

Wire color

Measuring condition Signal designation Ignition switch Operation or condition ON (Open) OFF (Close)

Reference value (V) Approx. 0 Approx. 12 Approx. 0 Approx. 12 Approx. 0 OFF ON Approx. 12 Approx. 0

Key is inserted Room lamp switch: DOOR position

Any door switch

21

Y

Logical lighting control

OFF

Close all doors

Key is removed from key cylinder Turn ignition switch ON

Key is removed Interior room lamp timer

OK or NG OK >> Check condition of the harness and connector. NG >> Replace BCM.

LT-6

INTERIOR ROOM LAMP Bulb Replacement
1. 2. Remove interior room lamp. Refer to LT-7,"REMOVAL" in this SMA file. Remove bulbs. Interior room lamp : 12V - 5W

To ESM

Removal and Installation
REMOVAL
1. 2. 3. Without damaging the headliner, insert a clip driver in the interior room lamp right side edge to disengage tab(2). Disengage tab(2) of left side, and then disconnect connector. Remove interior room lamp(1).

MKIB1734E

INSTALLATION
Install in the reverse order of removal.

LT-7

BULB SPECIFICATIONS BULB SPECIFICATIONS Interior Lamp/Illumination
Item Interior room lamp Luggage room lamp 5 10

To ESM
Wattage (W)

LT-8