Inspection Procedure 3: The Personal Lamp does not Illuminate Normally. <Vehicles with Keyless Entry System>


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


























COMMENTS ON TROUBLE SYMPTOM


If the personal lamps do not illuminate or extinguish normally, wiring harness connector(s) or the bulb may be defective.

PROBABLE CAUSES



DIAGNOSIS PROCEDURE


STEP 1. SWS monitor data list


<Selected item> ETACS ECU
Item No.
 Item name
 Normal condition
Item 32
 FRONT 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 signal related to the personal lamp illumination.

Item No.
 Item name
 Normal condition
Item 03
 Key reminder switch
 OFF

Item No.
 Item name
 Normal condition
Item 05
 Passenger’s door switch
 from OFF to ON

Item No.
 Item name
 Normal condition
Item 07
 Rear and back gate door switch
 from OFF to ON

Item No.
 Item name
 Normal condition
Item 41
 Rear door (right side) switch
 from OFF to ON

Item No.
 Item name
 Normal condition
Item 42
 Rear door (left side) switch
 from OFF to ON

Item No.
 Item name
 Normal condition
Item 22
 Dr door lock actuator unlock SW
 from ON to OFF

Item No.
 Item name
 Normal condition
Item 31
 Room lamp ALL ON 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, 41 or 42) : Refer to ETACS - Input Signal Chart .

NO (Normal condition is not displayed for item No.22) : Refer to ETACS - Input Signal Chart .

NO (Normal condition is not displayed for item No.31 or 32) : Refer to ETACS - Input Signal Chart .

STEP 3. Retest the system.


Check which lamp does not illuminate when the lamp switches are operated.

Q. Which lamp does not illuminate?

YES (All of the lamps illuminate normally) : The procedure is complete.

NO (No lamps illuminate normally) : Go to Step 4.

NO (One of the personal lamp (RH or LH) does not illuminate normally) : Go to Step 8.

STEP 4. Check the personal lamp switches.


Check which position (ON or DOOR) of the personal 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 5.

NO (The lamp does not illuminate at the DOOR position) : Go to Step 7.

NO (The lamp does not illuminate at the ON position) : Replace the personal lamp.

STEP 5. Connector check: D-419 ETACS-ECU connector and E-104 personal lamp (RH) connector


Q. Is the check result normal?

Go to Step 6.

Repair the defective connector.

STEP 6. Check the wiring harness from D-419 ETACS-ECU connector terminal No.6 to E-104 personal lamp (RH) connector terminal No.2.


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.

Q. Is the check result normal?

Replace the personal lamp.

Repair the wiring harness.

STEP 7. Check the wiring harness from D-419 ETACS-ECU connector terminal No.5 to E-104 personal lamp (RH) 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.

Q. Is the check result normal?

Replace the personal lamp.

Repair the wiring harness.

STEP 8. Connector check: E-104 personal lamp (RH) connector or E-109 personal lamp (LH) connector


Q. Is the check result normal?

Go to Step 9.

Repair the defective connector.

STEP 9. Check the bulbs of the personal lamp.


Check that the personal lamp bulbs are not burned out.

Q. Is the check result normal?

Go to Step 10

Replace the personal lamp bulb.

STEP 10. Check the personal lamp switches.


Check which switch position (ON or DOOR) does not activate the personal 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 11.

NO (The lamp does not illuminate at the ON position) : Go to Step 12.

NO (The lamp does not illuminate at the DOOR position) : Go to Step 14.

STEP 11. Check the wiring harness from D-419 ETACS-ECU connector terminal No.6 to E-104 personal lamp (RH) connector terminal No.2 or E-109 personal lamp (LH) connector terminal No.2.


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.

Q. Is the check result normal?

Replace the personal lamp.

Repair the wiring harness.

STEP 12. Connector check: E-102 room lamp connector


Q. Is the check result normal?

Go to Step 13.

Repair the defective connector.

STEP 13. Check the wiring harness from E-102 room lamp connector terminal No.9 to E-104 personal lamp (RH) connector terminal No.1 or E-109 personal lamp (LH) connector terminal No.1.


note Prior to the wiring harness inspection, check intermediate connector E-128 and repair if necessary.

Q. Is the check result normal?

Replace the personal lamp.

Repair the wiring harness.

STEP 14. Check the wiring harness from D-419 ETACS-ECU connector terminal No.5 to E-104 personal lamp (RH) connector terminal No.3 or E-109 personal lamp (LH) 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.

Q. Is the check result normal?

Replace the personal lamp.

Repair the wiring harness.