Lighting System (Diagnostics & Circuit Tests): Overview Toyota Corolla X рестайлинг

SYSTEM DESCRIPTION

1. ILLUMINATED ENTRY SYSTEM The illuminated entry system provides convenience when getting in or out of the vehicle at night. This function is controlled by the main body ECU. The operation and condition of this control are described below. Operation Condition Fade in When any of the following conditions is met, the personal light*1, room light and engine switch illumination*2 fade in. A key enters any actuation area around the doors when the ignition switch is off and all doors are closed*2. Any door is opened. Any door is unlocked when the ignition switch is off and all doors are closed*4. Ignition switch is turned from ACC to off when all doors are closed. Fade out immediately When either of the following conditions is met, the personal light*1, room light and engine switch illumination*2 fade out. Ignition switch is turned from off to ACC or ON when all doors are closed. All doors are locked when the ignition switch is off*4. Illuminate for approximately 15 seconds, and then fade out All doors are closed when the ignition switch is off. Fade out (Battery saving control) When all of the following conditions are met, the main body ECU turns off the lights. A key is not inserted in the ignition key cylinder*3. A key is not in the actuation area*2. There is no change in the condition of the doors for 20 minutes. When any of the following conditions is met, the count of the battery save times will be cleared. A key is inserted in the ignition key cylinder*3. A key is in the actuation area*2. Any of the doors is opened. HINT: *1: w/ Sliding Roof *2: w/ Smart Key System *3: w/o Smart Key System *4: w/ Power Door Lock Control System

OPERATION CHECK

1. INSPECT ILLUMINATED ENTRY SYSTEM OPERATION NOTE: Perform this inspection with the customize parameter at the initial setting. HINT: The illuminated entry system illuminates the lights below. Personal light*1 Room light Engine switch illumination*2 The operation and condition of this control are described below. Operation Condition Fade in When any of the following conditions is met, the personal light*1, room light and engine switch illumination*2 fade in. A key enters any actuation area around the doors when the ignition switch is off and all doors are closed*2. Any door is opened. Any door is unlocked when the ignition switch is off and all doors are closed*4. Ignition switch is turned from ACC to off when all doors are closed. Fade out immediately When either of the following conditions is met, the personal light*1, room light and engine switch illumination*2 fade out. Ignition switch is turned from off to ACC or ON when all doors are closed. All doors are locked when the ignition switch is off*4. Illuminate for approximately 15 seconds, and then fade out All doors are closed when the ignition switch is off. Fade out (Battery saving control) When all of the following conditions are met, the main body ECU turns off the lights. A key is not inserted in the ignition key cylinder*3. A key is not in the actuation area*2. There is no change in the condition of the doors for 20 minutes. When any of the following conditions is met, the count of the battery save times will be cleared. A key is inserted in the ignition key cylinder*3. A key is in the actuation area*2. Any of the doors is opened. HINT: *1: w/ Sliding Roof *2: w/ Smart Key System *3: w/o Smart Key System *4: w/ Power Door Lock Control System

DESCRIPTION

The main body ECU receives the IG signal to control the illuminated entry system.

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1. READ VALUE USING TECHSTREAM Connect the Techstream to the DLC3. Turn the ignition switch to ON. Turn the Techstream on. Enter the following menus: Body Electrical / Main Body / Data List. Read the display on the Techstream. MAIN BODY (MAIN BODY ECU) Tester Display Measurement Item/Range Normal Condition Diagnostic Note IG SW Ignition switch IG signal/ON or OFF ON: Ignition switch ON OFF: Ignition switch off - OK Normal conditions listed above are displayed. NG --> See step 2 OK --> See step 4
2. INSPECT FUSE (ECU-IG NO. 1) Remove the ECU-IG No. 1 fuse from the instrument panel junction block. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition ECU-IG No. 1 fuse Always Below 1 ohms NG --> REPLACE FUSE OK: Go to next step
3. CHECK HARNESS AND CONNECTOR (IG POWER SOURCE CIRCUIT) Measure the voltage between the loading slot of the fuse and body ground. Standard Voltage Tester Connection Switch Condition Specified Condition ECU-IG No. 1 fuse terminal - Body ground Ignition switch off Below 1 V Ignition switch ON 11 to 14 V NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK --> REPLACE MAIN BODY ECU (INSTRUMENT PANEL JUNCTION BLOCK)
4. PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE. Refer to «PROBLEM SYMPTOMS TABLE»(ref-426121-S11081977322011101200000)

The main body ECU receives the ACC signal to control the illuminated entry system.

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1. READ VALUE USING TECHSTREAM Connect the Techstream to the DLC3. Turn the ignition switch to ON. Turn the Techstream on. Enter the following menus: Body Electrical / Main Body / Data List. Read the display on the Techstream. MAIN BODY (MAIN BODY ECU) Tester Display Measurement Item/Range Normal Condition Diagnostic Note ACC SW Ignition switch ACC signal/ON or OFF ON: Ignition switch ACC OFF: Ignition switch off - OK Normal conditions listed above are displayed. NG --> See step 2 OK --> See step 4
2. INSPECT FUSE (ACC) Remove the ACC fuse from the instrument panel junction block. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition ACC fuse Always Below 1 ohms NG --> REPLACE FUSE OK: Go to next step
3. CHECK HARNESS AND CONNECTOR (ACC POWER SOURCE CIRCUIT) Measure the voltage between the loading slot of the fuse and body ground. Standard Voltage Tester Connection Switch Condition Specified Condition ACC fuse terminal - Body ground Ignition switch off Below 1 V Ignition switch ACC 11 to 14 V NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK --> REPLACE MAIN BODY ECU (INSTRUMENT PANEL JUNCTION BLOCK)
4. PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE. Refer to «PROBLEM SYMPTOMS TABLE»(ref-426121-S11081977322011101200000)

The main body ECU detects the condition of the door courtesy switches.

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1. READ VALUE USING TECHSTREAM Connect the Techstream to the DLC3. Turn the ignition switch to ON. Turn the Techstream on. Enter the following menus: Body Electrical / Main Body / Data List. Read the display on the Techstream. MAIN BODY (MAIN BODY ECU) Tester Display Measurement Item/Range Normal Condition Diagnostic Note D Door Courtesy SW Driver side door courtesy switch signal/ON or OFF ON: Driver side door is open OFF: Driver side door is closed - P Door Courtesy SW Front passenger side door courtesy switch signal/ON or OFF ON: Front passenger side door is open OFF: Front passenger side door is closed - RR Door Courtesy SW Rear door courtesy switch RH signal/ON or OFF ON: Rear door RH is open OFF: Rear door RH is closed - RL Door Courtesy SW Rear door courtesy switch LH signal/ON or OFF ON: Rear door LH is open OFF: Rear door LH is closed - Luggage Courtesy SW Luggage compartment door courtesy switch signal/ON or OFF ON: Luggage compartment door is open OFF: Luggage compartment door is closed - OK Normal conditions listed above are displayed. NG --> See step 2 OK --> See step 4
2. INSPECT DOOR COURTESY SWITCH Inspect the front door courtesy switch. Refer to «INSPECTION»(/toyota/corolla/x-2010-2013/remont/interiorillumination-lights/#lighting-system-interior-service-information) , rear door courtesy switch. Refer to «INSPECTION»(/toyota/corolla/x-2010-2013/remont/interiorillumination-lights/#lighting-system-interior-service-information) , or luggage compartment door courtesy switch. Refer to «INSPECTION»(/toyota/corolla/x-2010-2013/remont/interiorillumination-lights/#lighting-system-interior-service-information) . OK Door courtesy switches are normal. NG --> REPLACE DOOR COURTESY SWITCH OK: Go to next step
3. CHECK HARNESS AND CONNECTOR (INSTRUMENT PANEL JUNCTION BLOCK - SWITCH) Disconnect the E50*1 or E61*2 main body ECU connector. Disconnect the 2A and 2E instrument panel junction block connectors. Disconnect the L18 door lock assembly connector. Disconnect each door courtesy switch connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Front LH Front RH Rear LH Rear RH Luggage Compartment Door Tester Connection Condition Specified Condition 2A-21 (DCTY) - L3-1 Always Below 1 ohms L3-1 - Body ground Always 10 kohms or higher Tester Connection Condition Specified Condition 2E-20 (PCTY) - M1-1 Always Below 1 ohms M1-1 - Body ground Always 10 kohms or higher Tester Connection Condition Specified Condition E50-8 (LCTY)*1 - L5-1 E61-13 (LCTY)*2 - L5-1 Always Below 1 ohms L5-1 - Body ground Always 10 kohms or higher Tester Connection Condition Specified Condition 2E-19 (RCTY) - M3-1 Always Below 1 ohms M3-1 - Body ground Always 10 kohms or higher Tester Connection Condition Specified Condition 2A-7 (LGCY) - L18-3 Always Below 1 ohms L18-3 - Body ground Always 10 kohms or higher L18-2 - Body ground Always Below 1 ohms HINT: *1: w/ Smart Key System *2: w/o Smart Key System NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK --> REPLACE MAIN BODY ECU (INSTRUMENT PANEL JUNCTION BLOCK)
4. PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE. Refer to «PROBLEM SYMPTOMS TABLE»(ref-426121-S11081977322011101200000)

The main body ECU receives door lock position switch signals to control the illuminated entry system.

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The main body ECU controls the personal light*1 and room light according to the door courtesy switch, door lock position switch, and ignition switch conditions.

HINT

*1: w/ Sliding Roof

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1. PERFORM ACTIVE TEST USING TECHSTREAM Connect the Techstream to the DLC3. Turn the ignition switch to ON. Turn the Techstream on. Enter the following menus: Body Electrical / Main Body / Active Test. Check the operation. MAIN BODY (MAIN BODY ECU) Tester Display Test Part Control Range Diagnostic Note Illuminated Entry System Personal light*1 and room light (Personal switch OFF, Interior light switch is in DOOR position and all doors are closed) ON/OFF - HINT: *1: w/ Sliding Roof OK Each light fades in. NG --> See step 2 OK --> See step 4
2. INSPECT FUSE (DOME) Remove the DOME fuse from the engine room relay block. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Display Condition Specified Condition DOME fuse Always Below 1 ohms NG --> REPLACE FUSE OK: Go to next step
3. CHECK HARNESS AND CONNECTOR (BATTERY - INSTRUMENT PANEL JUNCTION BLOCK) Disconnect the 2K instrument panel junction block assembly connector. Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Condition Specified Condition 2K-2 (ILE) - Body ground Always 11 to 14 V NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK --> REPLACE MAIN BODY ECU (INSTRUMENT PANEL JUNCTION BLOCK)
4. PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE. Refer to «PROBLEM SYMPTOMS TABLE»(ref-426121-S11081977322011101200000)

When either of the following conditions is met, the engine switch illumination comes on.

1. Light control switch is in TAIL position.

1. Interior light is turned on by the illuminated entry system.

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1. PERFORM ACTIVE TEST USING TECHSTREAM Connect the Techstream to the DLC3. Turn the ignition switch to ON. Turn the Techstream on. Enter the following menus: Body Electrical / Main Body / Active Test. Check the operation. MAIN BODY (MAIN BODY ECU) Tester Display Test Part Control Range Diagnostic Note Indicator for Lighting Engine switch illumination (All doors are closed) ON/OFF - OK Engine switch illumination comes on. NG --> See step 2 OK --> See step 4
2. INSPECT ENGINE SWITCH Remove the engine switch. Connect a (+) lead from the battery to terminal 11 and a (-) lead to terminal 4 or 5. Check that the illumination comes on. OK Engine switch illumination comes on. NG --> REPLACE ENGINE SWITCH OK: Go to next step
3. CHECK HARNESS OR CONNECTOR (ENGINE SWITCH - MAIN BODY ECU AND BODY GROUND) Disconnect the E51 main body ECU connector. Disconnect the E38 engine switch connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition E38-11 (SWIL) - E51-8 (SWIL) Always Below 1 ohms E38-4 (COM) or E38-5 (GND) - Body ground Always Below 1 ohms E51-8 (SWIL) - Body ground Always 10 kohms or higher NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK --> REPLACE MAIN BODY ECU (INSTRUMENT PANEL JUNCTION BLOCK)
4. PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE. Refer to «PROBLEM SYMPTOMS TABLE»(ref-426121-S11081977322011101200000)

See also:
• INSPECTION