[54E] SMART WIRING SYSTEM (SWS) USING SWS MONITOR <Except for Hong Kong spec.> - - SYMPTOM PROCEDURES - ROOM LAMP - INSPECTION PROCEDURE O-3: Interior lamp automatic shutoff function does not work normally. <Vehicles with keyless entry system> | PRINT PAGE / INDEX / PRIOR / NEXT

INSPECTION PROCEDURE O-3: Interior lamp automatic shutoff function does not work 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 The ETACS-ECU operates the interior lamp automatic shutdown function in accordance with the input signals below. Ignition switch (ACC) Ignition switch (IG1) Driver's door switch All of the door switches Interior lamp loaded signal If this function does not work normally, these input signal circuit(s) or the ETACS-ECU may be defective. Note that this function can be disabled/enabled by the adjustment function (default setting; enabled).
| POSSIBLE CAUSES Malfunction of the door switches Malfunction of the room lamp Malfunction of the ETACS-ECU Damaged harness wires and connectors
| DIAGNOSIS PROCEDURE
| Step 1. Check the adjustment function. Check that the interior lamp automatic shutdown function has been enabled by using the adjustment function. Q: Is the check result normal? YES: Go to Step 2. NO: Enable the interior lamp automatic shutdown function by using the adjustment function (Refer to GROUP 54B - Adjustment function ).
| Step 2. ECU check by using the SWS monitor Check that the power supply and earth lines to the ETACS-ECU and the SWS communication lines are normal. Ignition switch: OFF ECUS TO BE CHECKED ETACS ECU OK: "OK" is displayed on the "ETACS ECU" menu. Q: Is the check result normal? YES: Go to Step 3. NO: Refer to Inspection Procedure A-3 "Communication with ETACS-ECU is not possible ."
| Step 3. SWS monitor data list Check the input signals below, which are related to the interior lamp automatic shutdown function. <Selected item> ETACS ECU Ignition switch: OFF Driver's door: open
Item No. | Item name | Normal condition
--- | --- | ---
Item 30 | IG SW(IG1) | OFF
Item 31 | IG SW(ACC) | OFF
Item 32 | DR DOOR SW*1 | ON
FRONT DOOR SW*2
NOTE: *1 : Except for Australia *2 : Vehicles for Australia OK: Normal condition is displayed. Q: Is the check result normal? Normal conditions are displayed for all the items.: Go to Step 4. Normal condition is not displayed for item No.30.: Refer to Inspection Procedure P-2 "The ignition switch (IG1) signal is not received ." Normal condition is not displayed for item No.31.: Refer to Inspection Procedure P-1 "The ignition switch (ACC) signal is not received ." Normal condition is not displayed for item No.32.: Refer to Inspection Procedure P-4 "The driver's door switch signal is not received <LH drive vehicles>." Refer to Inspection Procedure P-4 "The driver's door switch signal is not received <RH drive vehicles>."
| Step 4. Pulse check Check the input signals below, which are related to the interior lamp automatic shutdown function.
System switch | Check condition
--- | ---
All of the door switches | A door is opened when all the doors are closed
Interior lamp loaded signal | When a load is applied through multi-purpose fuse No.22
OK: The MUT-II/III sounds or the voltmeter needle fluctuates. Q: Is the check result normal? All the signals are received normally.: Go to Step 5. All the door switch signals are not received.: Refer to Inspection Procedure P-14 "All the door switch signals are not received <LH drive vehicles>." Refer to Inspection Procedure P-14 "All the door switch signals are not received <RH drive vehicles>." The interior lamp loaded signal is not received.: Refer to Inspection Procedure P-18 "The interior lamp loaded signal is not detected ."
| Step 5. Retest the system. Check that the interior lamp automatic shutdown function works normally. Q: Is the check result normal? YES: The trouble can be an intermittent malfunction (Refer to GROUP 00 - How to Cope with Intermittent Malfunction ). NO: Replace the ETACS-ECU.

[54E] SMART WIRING SYSTEM (SWS) USING SWS MONITOR <Except for Hong Kong spec.> - - SYMPTOM PROCEDURES - ROOM LAMP - INSPECTION PROCEDURE O-3: Interior lamp automatic shutoff function does not work normally. <Vehicles with keyless entry system> | PRINT PAGE / INDEX / PRIOR / NEXT

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