Inspection Procedure 4: The Luggage Compartment Lamp does not Illuminate Normally. <Using SWS Monitor>


caution Whenever the ECU is replaced, ensure that the input and output signal circuits are normal.


























COMMENTS ON TROUBLE SYMPTOM
If the luggage compartment lamp does not turn on and off normally, wiring harness connector(s) or the bulb may be defective.

PROBABLE CAUSES

  • Malfunction of the luggage compartment lamp bulbs
  • Damaged harness wires and connectors

DIAGNOSIS PROCEDURE

STEP 1. SWS monitor data list
<Selected item> ETACS ECU
  • Driver’s door is open
Item No.
 Item name
 Normal condition
Item 32
 DR DOOR SW
 ON
OK: Normal condition is displayed.

Q. Is the check result normal?
Go to Step 2.
Refer to ETACS - Input Signal Chart .

STEP 2. ETACS switch data by using the SWS monitor
Check the ETACS-ECU signals related to the illumination of the luggage compartment lamp.

  • Ignition switch: OFF (key inserted)
Item No.
 Item name
 Normal condition
Item 03
 Key reminder switch
 OFF

  • Passenger’s door: Close → Open
Item No.
 Item name
 Normal condition
Item 05
 Passenger’s door switch
 from OFF to ON

  • Back door: Close → Open
Item No.
 Item name
 Normal condition
Item 07
 Rear and back gate door switch
 from OFF to ON

  • Rear door (RH): Close → Open
Item No.
 Item name
 Normal condition
Item 41
 Rear door (right side) switch
 from OFF to ON

  • Rear door (LH): Close → Open
Item No.
 Item name
 Normal condition
Item 42
 Rear door (left side) switch
 from OFF to ON

  • Driver’s door: Unlock → Lock
Item No.
 Item name
 Normal condition
Item 21
 Dr door lock actuator lock SW
 OFF
Item 22
 Dr door lock actuator unlock SW
 from ON to OFF

  • Room lamp on switch: ON
Item No.
 Item name
 Normal condition
Item 31
 Room lamp ALL ON switch
 ON

  • Room lamp off switch: ON
Item No.
 Item name
 Normal condition
Item 32
 Room lamp ALL OFF switch
 ON
OK: Normal conditions displayed for all the items.

Q. Is the check result normal?
YES (Normal conditions are displayed for all the items) : Go to Step 3.
NO (Normal condition is not displayed for item No.03) : Refer to ETACS - Input Signal Chart .
NO (Normal condition is not displayed for item No.05, 07, 41or 42) : Refer to ETACS - Input Signal Chart .
NO (Normal condition is not displayed for item No.21 and 32) : Refer to ETACS - Input Signal Chart .
NO (Normal condition is not displayed for item No.31or 42) : Refer to ETACS - Input Signal Chart .

STEP 3. Connector check: E-107 luggage compartment lamp connector

Q. Is the check result normal?
Go to Step 4.
Repair the defective connector.

STEP 4. Check the bulbs of the luggage compartment lamp.
Check that the luggage compartment lamp bulbs are not burned out.

Q. Is the check result normal?
Go to Step 5.
Replace the luggage compartment lamp bulb.

STEP 5. Check the luggage compartment lamp switch.
Check which position (ON or DOOR) of the luggage compartment lamp switch does not activate the relevant lamp.

Q. Which switch position does not activate the lamp?
YES (All of the lamps illuminate normally) : The procedure is complete.
NO (The lamp does not illuminates at neither the ON nor DOOR position) : Go to Step 6.
NO (The lamp does not illuminate at the DOOR position) : Go to Step 8.
NO (The lamp does not illuminate at the ON position) : Go to Step 10.

STEP 6. Connector check: D-419 ETACS-ECU connector

Q. Is the check result normal?
Go to Step 7.
Repair the defective connector.

STEP 7. Check the wiring harness from D-419 ETACS-ECU connector terminal No.6 to E-107 luggage compartment lamp connector terminal No.3.
note Prior to the wiring harness inspection, check intermediate connector D-130, E-128, joint connector D-34 and junction block connector D-410, and repair if necessary.

  • Check the earth wires for open circuit.

Q. Is the check result normal?
Replace the luggage compartment lamp.
Repair the wiring harness.

STEP 8. Connector check: D-419 ETACS-ECU connector

Q. Is the check result normal?
Go to Step 9.
Repair the defective connector.

STEP 9. Check the wiring harness from D-419 ETACS-ECU connector terminal No.5 to E-107 luggage compartment lamp connector terminal No.1.
note Prior to the wiring harness inspection, check intermediate connector D-130, E-128, joint connector D-34 and junction block connector D-410, and repair if necessary.

  • Check the earth wires for open circuit.

Q. Is the check result normal?
Replace the luggage compartment lamp.
Repair the wiring harness.

STEP 10. Check the wiring harness from E-107 luggage compartment lamp connector terminal No.2 to body earth.
note Prior to the wiring harness inspection, check intermediate connector E-128 and repair if necessary.

  • Check the earth wires for open circuit.

Q. Is the check result normal?
Replace the luggage compartment lamp.
Repair the wiring harness.