Inspection Procedure L-3

INSPECTION PROCEDURE L-3: Interior Light: The luggage compartment light does not illuminate or go out normally. [ECLIPSE]






















CIRCUIT OPERATION

The ETACS-ECU operates the luggage compartment light according to the following signals:

- Ignition switch (IG1): ON or OFF
- Liftgate latch switch: ON

TECHNICAL DESCRIPTION (COMMENT)

If the luggage compartment light does not flash normally, a burned-out dome light bulb, the input circuits from the switches described in "CIRCUIT OPERATION", the power supply line to the switches or the ETACS-ECU may be defective.

TROUBLESHOOTING HINTS

- The luggage compartment light bulb may be defective
- The liftgate latch switch may be defective
- The wiring harness or connectors may have loose, corroded, or damaged terminals, or terminals pushed back in the connector
- The ETACS-ECU may be defective

DIAGNOSIS

Required Special Tools:

- MB991223: Harness Set
- MB992006: Extra Fine Probe
- MB991958: Scan Tool (M.U.T.-III Sub Assembly)
- MB991824: V.C.I.
- MB991827: M.U.T.-III USB Cable
- MB991910: M.U.T.-III Main Harness A

STEP 1. Check the input signal (by using the pulse check mode of the monitor).





Check the input signals from the liftgate latch switch.

- Check whether scan tool MB991958 sounds or not when the liftgate is opened.
(1)Operate scan tool MB991958 according to the procedure below to display "Pulse check."

.....Select "Interactive Diagnosis."

.....Select "System Select."

.....Select "SWS."

.....Select "Pulse Checking."

Q. Does scan tool MB991958 sound when the liftgate is opened?

YES Go to Step 2.

NO Refer to Inspection Procedure N-5 "ETACS-ECU does not receive any signal from the liftgate latch switch Inspection Procedure N-5. [ECLIPSE]"

STEP 2. Check luggage compartment light connector D-09, ETACS-ECU connectors C-217 and C-218 and for loose, corroded or damaged terminals, or terminals pushed back in the connector.









Q. Is luggage compartment light connector D-09, ETACS-ECU connectors C-217 and C-218 in good condition?

YES Go to Step 3.

NO Repair or replace the damaged component(s). Harness Connector Inspection. Check that the luggage compartment light illuminates normally.

STEP 3. Check the luggage compartment light bulb.

Q. Is the luggage compartment light bulb in good condition?

YES Go to Step 4.
NO Replace the luggage compartment light bulb. Check that the luggage compartment light illuminates normally.
STEP 4. Check the wiring harness between luggage compartment light connector D-09 (terminals 1 and 2) and ETACS-ECU connector C-217 (terminal 6) or C-218 (terminal 52).

- Check the communication lines for open circuit and short circuit.

















NOTE:
Also check intermediate connector C-23 and junction block connector C-208 for loose, corroded, or damaged terminals, or terminals pushed back in the connector. If intermediate connector C-23 or junction block connector C-208 is damaged, repair or replace the damaged component(s) as described in Harness Connector Inspection Harness Connector Inspection.

Q. Is the wiring harness between luggage compartment light connector D-09 (terminals 1 and 2) and ETACS-ECU connector C-217 (terminal 6) or C-218 (terminal 52) in good condition?

YES Replace the front dome light. Check that the front dome light illuminates normally.

NO The wiring harness may be damaged or the connector(s) may have loose, corroded or damaged terminals, or terminals pushed back in the connector. Repair the wiring harness as necessary. Check that the front dome light illuminates normally.