Dome Light - Except Lancer Evolution Mitsubishi Lancer Evolution X

Scheme 1

1. A front dome light, installed to the front part of the roof, has been equipped with the lens-push type map and dome light which can be operated easily from the driver's and front passenger's seat, offering excellent operability for turning on and off the light. < ES, GTS and RALLIART >
2. The rear dome light, which illuminates the rear passenger's seat, is installed above the rear seat. < Vehicle without sunroof >
3. The luggage compartment light is installed to the upper part of the luggage compartment.

Scheme 2

1. A front dome light, installed to the front part of the roof, has been equipped with the lens-push type front dome light/reading light which can be operated easily from the driver's and front passenger's seat, offering excellent operability for turning on and off the light.
2. The rear dome light, which illuminates the rear passenger's seat, is installed above the rear seat. < Vehicle without sunroof >
3. The luggage compartment light that illuminates the luggage compartment has been installed to the quarter trim lower (RH).

SPECIAL TOOLS

SPECIAL TOOLS Tool Tool number and name Supersession Application MB991958 MB991824 MB991827 MB991910 MB991911 MB991914 MB991825 MB991826 M.U.T.-III sub-assembly Vehicle communication interface (V.C.I.) M.U.T.-III USB cable M.U.T.-III main harness A (Vehicles with CAN communication system) M.U.T.-III main harness B (Vehicles without CAN communication system) M.U.T.-III main harness C (for Chrysler models only) M.U.T.-III measurement adapter M.U.T.-III trigger harness MB991824-KIT NOTE: G: MB991826 M.U.T.-III Trigger Harness is not necessary when pushing V.C.I. ENTER key. CAUTION: M.U.T.-III main harness A (MB991910) should be used. M.U.T.-III main harness B and C should not be used for this vehicle. DTC, data list and actuator test check. MB991223 MB991219 MB991220 MB991221 MB991222 Harness set Check harness LED harness LED harness adapter Probe General service tool (jumper) Continuity check and voltage measurement at harness wire or connector For checking connector pin contact pressure For checking power supply circuit For checking power supply circuit For connecting a locally sourced tester MB992006 Extra fine probe - Continuity check and voltage measurement at harness wire or connector

Scheme 3

Scheme 4

STANDARD FLOW OF DIAGNOSTIC TROUBLESHOOTING

Refer to TROUBLESHOOTING CONTENTS .

HOW TO CONNECT THE SCAN TOOL (M.U.T.-III)

Required Special Tools

MB991958: Scan Tool (M.U.T.-III Sub Assembly)

1. MB991824: Vehicle Communication Interface (V.C.I.)
2. MB991827: M.U.T.-III USB Cable
3. MB991910: M.U.T.-III Main Harness A (Vehicles with CAN communication system) CAUTION: To prevent damage to scan tool MB991958, always turn the ignition switch to the "LOCK" (OFF) position before connecting or disconnecting scan tool MB991958.

Scheme 5

1. Ensure that the ignition switch is at the "LOCK" (OFF) position.
2. Start up the personal computer.
3. Connect special tool MB991827 to special tool MB991824 and the personal computer.
4. Connect special tool MB991910 to special tool MB991824.
5. Connect special tool MB991910 to the data link connector.
6. Turn the power switch of special tool MB991824 to the "ON" position. NOTE: When special tool MB991824 is energized, special tool MB991824 indicator light will be illuminated in a green color.
7. Start the M.U.T.-III system on the personal computer. NOTE: Disconnecting scan tool MB991958 is the reverse of the connecting sequence, making sure that the ignition switch is at the "LOCK" (OFF) position.

HOW TO READ AND ERASE DIAGNOSTIC TROUBLE CODES

Required Special Tools

MB991958: Scan Tool (M.U.T.-III Sub Assembly)

1. MB991824: Vehicle Communication Interface (V.C.I.)
2. MB991827: M.U.T.-III USB Cable
3. MB991910: M.U.T.-III Main Harness A (Vehicles with CAN communication system) CAUTION: To prevent damage to scan tool MB991958, always turn the ignition switch to the "LOCK" (OFF) position before connecting or disconnecting scan tool MB991958. NOTE: If the battery voltage is low, diagnostic trouble codes will not be set. Check the battery if scan tool MB991958 does not display.

1. Connect scan tool MB991958 to the data link connector.
2. Turn the ignition switch to the "ON" position.
3. Select "System select" from the start-up screen.
4. Select "From 2006 MY" of "Model Year." When the "Vehicle Information" is displayed, check the contents.
5. Select "ETACS" from "System List", and press the "OK" button. NOTE: When the "Loading Option Setup" list is displayed, check the applicable item.
6. Select "Diagnostic Trouble Code." to read the DTC.
7. If a DTC is set, it is shown.
8. Choose "Erase DTCs" to erase the DTC.

TROUBLE SYMPTOM CHART

DOME LIGHT TROUBLE SYMPTOM CHART

Inspection Procedure 1: The front dome light does not illuminate normally

Scheme 6

TROUBLE JUDGMENT

The ETACS-ECU illuminates and extinguishes the front room light in accordance with the input signals below.

1. Ignition switch (IG1)
2. Key reminder switch
3. Door switches
4. Front door lock actuator

TECHNICAL DESCRIPTION (COMMENT)

If this does not work normally, the above switch input circuit(s), front dome light, or ETACS-ECU may have a problem.

TROUBLESHOOTING HINTS

1. Malfunction of the key reminder switch
2. Malfunction of door switch
3. Malfunction of the front door lock actuator switch
4. Malfunction of front dome light
5. Malfunction of the ETACS-ECU
6. The wiring harness or connectors may have loose, corroded, or damaged terminals, or terminals pushed back in the connector

DIAGNOSIS

Required Special Tools

1. MB991958: Scan Tool (M.U.T.-III Sub Assembly) MB991824: Vehicle Communication Interface (V.C.I.) MB991827: M.U.T.-III USB Cable MB991910: M.U.T.-III Main Harness A (Vehicles with CAN communication system)

1. STEP 1. Rear dome light operation check. Check that the rear dome light illuminates and extinguishes normally. Q: Does rear dome light work normally? YES: Go to Step 2. NO: Replace the ETACS-ECU.
2. STEP 2. Using scan tool MB991958, read the diagnostic trouble code. CAUTION: To prevent damage to scan tool MB991958, always turn the ignition switch to the "LOCK" (OFF) position before connecting or disconnecting scan tool MB991958. Connect scan tool MB991958. Refer to " «HOW TO CONNECT SCAN TOO (M.U.T.-III)»(/mitsubishi/lancer-evolution/x-2007-2016/remont/interiorillumination-lights/#dome-light-except-lancer-evolution__how-to-connect-the-scan-tool) ." Turn the ignition switch to the "ON" position. Check whether the ETACS-ECU related DTC is set. Turn the ignition switch to the "LOCK" (OFF) position. Q: Is the DTC set? YES: Diagnose the ETACS-ECU. Refer to «DIAGNOSIS»(/mitsubishi/lancer-evolution/x-2007-2016/remont/communication-devices/#electronic-time-and-alarm-control-system-etacs-except-lancer-evolution__diagnostic-trouble-code-chart) . NO: Go to Step 3.
3. STEP 3. Using scan tool MB991958, check data list. Use the ETACS-ECU data list to check the signals related to the front dome light. Turn the ignition switch to the "LOCK" (OFF) position. Remove the ignition key from the ignition key cylinder. Open each door. FRONT DOME LIGHT SCAN TOOL DATA LIST Item No. Item name Normal condition Item 228 Dr door unlock ON Item 254 IG voltage 1 V or less Item 256 Dr door ajar switch Open Item 257 As door ajar switch Open Item 258 RR door ajar switch Open Item 259 RL door ajar switch Open Item 264 Handle lock switch Key in --> Key out Q: Does scan tool MB991958 display the items "Dr door unlock", "IG voltage", "Dr door ajar switch", "As door ajar switch", "RR door ajar switch", "RL door ajar switch" and "Handle lock switch" as normal condition? YES: (Normal conditions are displayed for all items.) Go to Step 4. NO: (Normal condition is not displayed.) Troubleshoot the ETACS-ECU. Refer to «TROUBLE SYMPTOM CHART FOR INPUT SIGNAL»(/mitsubishi/lancer-evolution/x-2007-2016/remont/communication-devices/#electronic-time-and-alarm-control-system-etacs-except-lancer-evolution__trouble-symptom-chart-for-input-signal) .
4. STEP 4. Check front dome light connector D-02 for loose, corroded or damaged terminals, or terminals pushed back in the connector. Q: Is front dome light connector D-02 in good condition? YES: Go to Step 5. NO: Repair or replace the damaged component(s). Refer to «HARNESS CONNECTOR INSPECTION»(/mitsubishi/lancer-evolution/x-2007-2016/remont/body-electrical/#general-electrical-except-lancer-evolution) .
5. STEP 5. Front dome light bulb check Check that the front dome light bulb is normal. Q: Is front dome light bulb normal? YES: Go to Step 6. NO: Replace the front dome light bulb.
6. STEP 6. Check ETACS-ECU connector C-316 for loose, corroded or damaged terminals, or terminals pushed back in the connector. Q: Is ETACS-ECU connectors C-316 in good condition? YES: Go to Step 7. NO: Repair or replace the damaged component(s). Refer to «HARNESS CONNECTOR INSPECTION»(/mitsubishi/lancer-evolution/x-2007-2016/remont/body-electrical/#general-electrical-except-lancer-evolution) .
7. STEP 7. Check the wiring harness between front dome light connector D-02 (terminal 2, 3) and ETACS-ECU connector C-316 (terminal 6, 5) Check the signal line for open circuit and short circuit. Q: Are wiring harness between front dome light connector D-02 (terminal 2, 3) and ETACS-ECU connector C-316 (terminal 6, 5) in good condition? YES: Go to Step 8. 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.
8. STEP 8. Check the wiring harness between front dome light connector D-02 (terminal 1) and body ground. Check the ground wires for open circuit. Q: Is wiring harness between front dome light connector D-02 (terminal 1) and body ground in good condition? YES: Replace the front dome light, and then go to Step 9. 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.
9. STEP 9. Retest the system Check that the front dome light illuminates and extinguishes normally. Q: Do the front dome light work normal? YES: The trouble can be an intermittent malfunction (Refer to «HOW TO COPE WITH INTERMITTENT MALFUNCTION»(/mitsubishi/lancer-evolution/x-2007-2016/remont/hoistjack/#general-information-except-lancer-evolution__how-to-cope-with-intermittent-malfunctions) ). NO: Replace the ETACS-ECU.

Inspection Procedure 2: The rear dome light does not illuminate normally

Scheme 7

The ETACS-ECU illuminates and extinguishes the rear dome light in accordance with the input signals below.

1. Ignition switch (IG1)
2. Key reminder switch
3. Door switches
4. Front door lock actuator

If this does not work normally, the above switch input circuit(s), rear dome light, or ETACS-ECU may have a problem.

PROBABLE CAUSES

1. Malfunction of the key reminder switch
2. Malfunction of door switch
3. Malfunction of the front door lock actuator (LH)
4. Malfunction of rear dome light
5. Malfunction of the ETACS-ECU
6. The wiring harness or connectors may have loose, corroded, or damaged terminals, or terminals pushed back in the connector

Required Special Tools

1. MB991958: Scan Tool (M.U.T.-III Sub Assembly) MB991824: Vehicle Communication Interface (V.C.I.) MB991827: M.U.T.-III USB Cable MB991910: M.U.T.-III Main Harness A (Vehicles with CAN communication system)

1. STEP 1. Front dome light operation check Check that the front dome light illuminates and extinguishes normally. Q: Does rear dome light work normally? YES: Go to Step 2. NO: Replace the ETACS-ECU.
2. STEP 2. Using scan tool MB991958, read the diagnostic trouble code. CAUTION: To prevent damage to scan tool MB991958, always turn the ignition switch to the "LOCK" (OFF) position before connecting or disconnecting scan tool MB991958. Connect scan tool MB991958. Refer to " «HOW TO CONNECT SCAN TOO (M.U.T.-III)»(/mitsubishi/lancer-evolution/x-2007-2016/remont/interiorillumination-lights/#dome-light-except-lancer-evolution__how-to-connect-the-scan-tool) ." Turn the ignition switch to the "ON" position. Check whether the ETACS-ECU related DTC is set. Turn the ignition switch to the "LOCK" (OFF) position. Q: Is the DTC set? YES: Diagnose the ETACS-ECU. Refer to «DIAGNOSTIC TROUBLE CODE CHART»(/mitsubishi/lancer-evolution/x-2007-2016/remont/communication-devices/#electronic-time-and-alarm-control-system-etacs-except-lancer-evolution__diagnostic-trouble-code-chart) . NO: Go to Step 3.
3. STEP 3. Using scan tool MB991958, check data list. Use the ETACS-ECU data list to check the signals related to the rear dome light. Turn the ignition switch to the "LOCK" (OFF) position. Remove the ignition key from the ignition key cylinder. Open each door. REAR DOME LIGHT SCAN TOOL DATA LIST Item No. Item name Normal condition Item 228 Dr door unlock ON Item 254 IG voltage 1 V or less Item 256 Dr door ajar switch Open Item 257 As door ajar switch Open Item 258 RR door ajar switch Open Item 259 RL door ajar switch Open Item 264 Handle lock switch Key in --> Key out Q: Does scan tool MB991958 display the items "Dr door unlock", "IG voltage", "Dr door ajar switch", "As door ajar switch", "RR door ajar switch", "RL door ajar switch" and "Handle lock switch" as normal condition? YES: (Normal conditions are displayed for all items.) Go to Step 4. NO: (Normal condition is not displayed.) Troubleshoot the ETACS-ECU. Refer to «TROUBLE SYMPTOM CHART FOR INPUT SIGNAL»(/mitsubishi/lancer-evolution/x-2007-2016/remont/communication-devices/#electronic-time-and-alarm-control-system-etacs-except-lancer-evolution__trouble-symptom-chart-for-input-signal) .
4. STEP 4. Check rear dome light connector D-06 for loose, corroded or damaged terminals, or terminals pushed back in the connector. Q: Is rear dome light connector D-06 in good condition? YES: Go to Step 5. NO: Repair or replace the damaged component(s). Refer to «HARNESS CONNECTOR INSPECTION»(/mitsubishi/lancer-evolution/x-2007-2016/remont/body-electrical/#general-electrical-except-lancer-evolution) .
5. STEP 5. Rear dome light bulb check Check that the rear dome light bulb is normal. Q: Is rear dome light bulb normal? YES: Go to Step 6. NO: Replace the rear dome light bulb.
6. STEP 6. Check ETACS-ECU connector C-316 for loose, corroded or damaged terminals, or terminals pushed back in the connector. Q: Is ETACS-ECU connectors C-311 in good condition? YES: Go to Step 7. NO: Repair or replace the damaged component(s). Refer to «HARNESS CONNECTOR INSPECTION»(/mitsubishi/lancer-evolution/x-2007-2016/remont/body-electrical/#general-electrical-except-lancer-evolution) .
7. STEP 7. Check the wiring harness between rear dome light D-06 connector (terminal 1, 2) and ETACS-ECU connector C-316 (terminal 6, 5) Check the signal line for open circuit and short circuit. Q: Is wiring harness between rear dome light D-06 connector (terminal 1, 2) and ETACS-ECU connector C-316 (terminal 6, 5) in good condition? YES: Go to Step 8. 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.
8. STEP 8. Retest the system Check that the rear dome light illuminates and extinguishes normally. Q: Does rear dome light work normal? YES: The trouble can be an intermittent malfunction (Refer to «HOW TO COPE WITH INTERMITTENT MALFUNCTION»(/mitsubishi/lancer-evolution/x-2007-2016/remont/hoistjack/#general-information-except-lancer-evolution__how-to-cope-with-intermittent-malfunctions) ). NO: Replace the ETACS-ECU.

Inspection Procedure 3: The luggage compartment light does not illuminate normally

Scheme 8

Scheme 9

The ETACS-ECU illuminates and extinguishes the luggage compartment light in accordance with the input signals from trunk lid latch switch < LANCER > or liftgate switch < LANCER SPORTBACK >.

If this does not work normally, the trunk lid latch switch input circuit < LANCER > or liftgate switch input circuit < LANCER SPORTBACK >, luggage compartment light, or ETACS-ECU may have a problem.

1. Malfunction of trunk lid latch assembly < LANCER >
2. Malfunction of liftgate switch assembly < LANCER SPORTBACK >
3. Malfunction of luggage compartment light
4. Malfunction of the ETACS-ECU
5. The wiring harness or connectors may have loose, corroded, or damaged terminals, or terminals pushed back in the connector

Required Special Tools

1. MB991958: Scan Tool (M.U.T.-III Sub Assembly) MB991824: Vehicle Communication Interface (V.C.I.) MB991827: M.U.T.-III USB Cable MB991910: M.U.T.-III Main Harness A (Vehicles with CAN communication system)

1. STEP 1. Using scan tool MB991958, read the diagnostic trouble code. CAUTION: To prevent damage to scan tool MB991958, always turn the ignition switch to the "LOCK" (OFF) position before connecting or disconnecting scan tool MB991958. Connect scan tool MB991958. Refer to " «HOW TO CONNECT SCAN TOO (M.U.T.-III)»(/mitsubishi/lancer-evolution/x-2007-2016/remont/interiorillumination-lights/#dome-light-except-lancer-evolution__how-to-connect-the-scan-tool) ." Turn the ignition switch to the "ON" position. Check whether the ETACS-ECU related DTC is set. Turn the ignition switch to the "LOCK" (OFF) position. Q: Is the DTC set? YES: Diagnose the ETACS-ECU. Refer to «DIAGNOSTIC TROUBLE CODE CHART»(/mitsubishi/lancer-evolution/x-2007-2016/remont/communication-devices/#electronic-time-and-alarm-control-system-etacs-except-lancer-evolution__diagnostic-trouble-code-chart) . NO < LANCER >: Go to Step 2. NO < LANCER SPORTBACK >: Go to Step 8 .
2. STEP 2. Using scan tool MB991958, check data list. Use the ETACS-ECU service data to check the signal related to the operation of luggage compartment light. Open the trunk lid. LUGGAGE COMPARTMENT LIGHT SCAN TOOL DATA LIST Item No. Item name Normal condition Item 260 Trunk/gate trunk ajar switch Open Q: Does scan tool MB991958 display the item "Trunk/gate trunk ajar switch" as normal condition? YES: (Normal condition is displayed.) Go to Step 3. NO: (Normal condition is not displayed.) Troubleshoot the ETACS-ECU. Refer to «TROUBLE SYMPTOM CHART FOR INPUT SIGNAL»(/mitsubishi/lancer-evolution/x-2007-2016/remont/communication-devices/#electronic-time-and-alarm-control-system-etacs-except-lancer-evolution__trouble-symptom-chart-for-input-signal) .
3. STEP 3. Check luggage compartment light connector F-01 for loose, corroded or damaged terminals, or terminals pushed back in the connector. Q: Is luggage compartment light connector F-01 in good condition? YES: Go to Step 4. NO: Repair or replace the damaged component(s). Refer to «HARNESS CONNECTOR INSPECTION»(/mitsubishi/lancer-evolution/x-2007-2016/remont/body-electrical/#general-electrical-except-lancer-evolution) .
4. STEP 4. Luggage compartment light bulb check Check that the luggage compartment light bulb is normal. Q: Is luggage compartment light bulb normal? YES: Go to Step 5. NO: Replace the luggage compartment light bulb.
5. STEP 5. Check ETACS-ECU connector C-311 for loose, corroded or damaged terminals, or terminals pushed back in the connector. Q: Is ETACS-ECU connectors C-311 in good condition? YES: Go to Step 6. NO: Repair or replace the damaged component(s). Refer to «HARNESS CONNECTOR INSPECTION»(/mitsubishi/lancer-evolution/x-2007-2016/remont/body-electrical/#general-electrical-except-lancer-evolution) .
6. STEP 6. Check the wiring harness between luggage compartment light connector F-01 (terminal 1, 2) and ETACS-ECU connector C-311 (terminal 17, 3). Check the signal line for open circuit and short circuit. NOTE: Also check intermediate connector D-14 for loose, corroded, or damaged terminals, or terminals pushed back in the connector. If intermediate connector D-14 is damaged, repair or replace the connector as described in «HARNESS CONNECTOR INSPECTION»(/mitsubishi/lancer-evolution/x-2007-2016/remont/body-electrical/#general-electrical-except-lancer-evolution) . Q: Is wiring harness between luggage compartment light connector F-01 (terminal 1, 2) and ETACS-ECU connector C-311 (terminal 17, 3) in good condition? YES: Go to Step 7. 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.
7. STEP 7. Retest the system Check that the luggage compartment light illuminates and extinguishes normally. Q: Do the trunk room work normal? YES: The trouble can be an intermittent malfunction (Refer to «HOW TO COPE WITH INTERMITTENT MALFUNCTION»(/mitsubishi/lancer-evolution/x-2007-2016/remont/hoistjack/#general-information-except-lancer-evolution__how-to-cope-with-intermittent-malfunctions) ). NO: Replace the ETACS-ECU.
8. STEP 8. Check whether the luggage compartment light illuminates. When the luggage compartment light switch is turned to the "DOOR" or "ON" position, check that the luggage compartment light illuminates. Q: Does the luggage compartment light illuminate? The light does not illuminate at the "DOOR" position.: Go to Step 9. The light does not illuminate at the "ON" position.: Go to Step 12 . The light illuminates at neither the "DOOR" nor "ON" position.: Got to Step 14 .
9. STEP 9. Using scan tool MB991958, check data list. Use the ETACS-ECU service data to check the signal related to the operation of luggage compartment light. Open the liftgate. TRUNK/GATE TRUNK AJAR SWITCH SCAN TOOL DATA LIST Item No. Item name Normal condition Item 260 Trunk/gate trunk ajar switch Open Q: Does scan tool MB991958 display the item "Trunk/gate trunk ajar switch" as normal condition? YES: (Normal condition is displayed.) Go to Step 10. NO: (Normal condition is not displayed.) Troubleshoot the ETACS-ECU. Refer to «TROUBLE SYMPTOM CHART FOR INPUT SIGNAL»(/mitsubishi/lancer-evolution/x-2007-2016/remont/communication-devices/#electronic-time-and-alarm-control-system-etacs-except-lancer-evolution__trouble-symptom-chart-for-input-signal) .
10. STEP 10. Check luggage compartment light connector F-01 and ETACS-ECU connector C-311 for loose, corroded or damaged terminals, or terminals pushed back in the connector. Q: Is luggage compartment light connector F-01 or ETACS-ECU connector C-311 in good condition? YES: Go to Step 11. NO: Repair or replace the damaged component(s). Refer to «HARNESS CONNECTOR INSPECTION»(/mitsubishi/lancer-evolution/x-2007-2016/remont/body-electrical/#general-electrical-except-lancer-evolution) .
11. STEP 11. Check the wiring harness between luggage compartment light connector F-01 (terminal 1) and ETACS-ECU connector C-311 (terminal 3). Check the output lines for open circuit and short circuit. NOTE: Also check intermediate connector D-11 for loose, corroded, or damaged terminals, or terminals pushed back in the connector. If intermediate connector D-11 is damaged, repair or replace the connector as described in «HARNESS CONNECTOR INSPECTION»(/mitsubishi/lancer-evolution/x-2007-2016/remont/body-electrical/#general-electrical-except-lancer-evolution) . Q: Is wiring harness between luggage compartment light connector F-01 (terminal 1) and ETACS-ECU connector C-311 (terminal 3) in good condition? YES: Go to Step 17 . 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.
12. STEP 12. Check luggage compartment light connector F-01 for loose, corroded or damaged terminals, or terminals pushed back in the connector. Q: Is luggage compartment light connector F-01 in good condition? YES: Go to Step 13. NO: Repair or replace the damaged component(s). Refer to «HARNESS CONNECTOR INSPECTION»(/mitsubishi/lancer-evolution/x-2007-2016/remont/body-electrical/#general-electrical-except-lancer-evolution) .
13. STEP 13. Check the wiring harness between luggage compartment light connector F-01 (terminal 2) and body ground. Check the ground lines for open circuit. Q: Is wiring harness between luggage compartment light connector F-01 (terminal 2) and body ground in good condition? YES: Go to Step 18 . 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.
14. STEP 14. Luggage compartment light bulb check Check that the luggage compartment light bulb is normal. Q: Is luggage compartment light bulb normal? YES: Go to Step 15. NO: Replace the luggage compartment light bulb.
15. STEP 15. Check luggage compartment light connector F-01 and ETACS-ECU connector C-311 for loose, corroded or damaged terminals, or terminals pushed back in the connector. Q: Is luggage compartment light connector F-01 or ETACS-ECU connector C-311 in good condition? YES: Go to Step 16. NO: Repair or replace the damaged component(s). Refer to «HARNESS CONNECTOR INSPECTION»(/mitsubishi/lancer-evolution/x-2007-2016/remont/body-electrical/#general-electrical-except-lancer-evolution) .
16. STEP 16. Check the wiring harness between luggage compartment light connector F-01 (terminal 3) and ETACS-ECU connector C-311 (terminal 17). Check the input lines for open circuit and short circuit. NOTE: Also check intermediate connector D-11 for loose, corroded, or damaged terminals, or terminals pushed back in the connector. If intermediate connector D-11 is damaged, repair or replace the connector as described in «HARNESS CONNECTOR INSPECTION»(/mitsubishi/lancer-evolution/x-2007-2016/remont/body-electrical/#general-electrical-except-lancer-evolution) . Q: Is wiring harness between luggage compartment light connector F-01 (terminal 3) and ETACS-ECU connector C-311 (terminal 17) in good condition? YES: Go to Step 18 . 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.
17. STEP 17. Retest the system Check that the luggage compartment light illuminates and extinguishes normally. Q: Does the luggage compartment light illuminate? YES: The trouble can be an intermittent malfunction (Refer to «HOW TO COPE WITH INTERMITTENT MALFUNCTION»(/mitsubishi/lancer-evolution/x-2007-2016/remont/hoistjack/#general-information-except-lancer-evolution__how-to-cope-with-intermittent-malfunctions) ). NO: Replace the ETACS-ECU.
18. STEP 18. Retest the system Check that the luggage compartment light illuminates and extinguishes normally. Q: Does the luggage compartment light illuminate? YES: The trouble can be an intermittent malfunction (Refer to «HOW TO COPE WITH INTERMITTENT MALFUNCTION»(/mitsubishi/lancer-evolution/x-2007-2016/remont/hoistjack/#general-information-except-lancer-evolution__how-to-cope-with-intermittent-malfunctions) ). NO: Replace the luggage compartment light.

The ETACS-ECU operates the interior light auto-cut function in accordance with the input signals below.

1. Ignition switch (ACC)
2. Ignition switch (IG1)
3. Door switches If this function does not work normally, these input signal circuit(s) or the ETACS-ECU may have a problem. Also, "Interior light auto cut timer" may be set to "Disable" through customization.

1. Malfunction of door switch
2. Malfunction of the dome light
3. Malfunction of the ETACS-ECU
4. The wiring harness or connectors may have loose, corroded, or damaged terminals, or terminals pushed back in the connector

Required Special Tools

1. MB991958: Scan Tool (M.U.T.-III Sub Assembly) MB991824: Vehicle Communication Interface (V.C.I.) MB991827: M.U.T.-III USB Cable MB991910: M.U.T.-III Main Harness A (Vehicles with CAN communication system)

1. STEP 1. Using scan tool MB991958, Check the configuration function. CAUTION: To prevent damage to scan tool MB991958, always turn the ignition switch to the "LOCK" (OFF) position before connecting or disconnecting scan tool MB991958. Connect scan tool MB991958. Refer to " «HOW TO CONNECT SCAN TOOL (M.U.T.-III)»(/mitsubishi/lancer-evolution/x-2007-2016/remont/interiorillumination-lights/#dome-light-except-lancer-evolution__how-to-connect-the-scan-tool) ." Turn the ignition switch to the "ON" position. Use the ETACS-ECU customize function to check to see which of the followings other than "Disable" the "Interior light auto cut timer" is set. Turn the ignition switch to the "LOCK" (OFF) position. Q: Is the check result normal? YES: Go to Step 2. NO: Use the ETACS-ECU configuration function to set the "Interior light auto cut timer" to other than "Disable" (Refer to «ON-VEHICLE SERVICE»(/mitsubishi/lancer-evolution/x-2007-2016/remont/communication-devices/#electronic-time-and-alarm-control-system-etacs-except-lancer-evolution) ).
2. STEP 2. Using scan tool MB991958, read the ETACS-ECU diagnostic trouble code. Check if DTC is set to the ETACS-ECU. Turn the ignition switch to the "ON" position. Check whether the ETACS-ECU DTC is set. Turn the ignition switch to the "LOCK" (OFF) position. Q: Is the DTC set? YES: Diagnose the ETACS-ECU. Refer to «DIAGNOSTIC TROUBLE CODE CHART»(/mitsubishi/lancer-evolution/x-2007-2016/remont/communication-devices/#electronic-time-and-alarm-control-system-etacs-except-lancer-evolution__diagnostic-trouble-code-chart) . NO: Go to Step 3.
3. STEP 3. Using scan tool MB991958, check data list. Use the ETACS-ECU data list to check the signals related to the interior light auto-cut function. Turn the ignition switch to the "LOCK" (OFF) position. Open each door. INTERIOR LIGHT AUTO-CUT FUNCTION SCAN TOOL DATA LIST Item No. Item name Normal condition Item 254 IG voltage 1 V or less Item 288 ACC switch OFF Item 256 Dr door ajar switch Open Item 257 As door ajar switch Open Item 258 RR door ajar switch Open Item 259 RL door ajar switch Open Q: Does scan tool MB991958 display the items "IG voltage", "ACC switch", "Dr door ajar switch", "As door ajar switch", "RR door ajar switch", and "RL door ajar switch" as normal condition? YES: (Normal conditions are displayed for all items.) Go to Step 4. NO: (Normal condition is not displayed.) Troubleshoot the ETACS-ECU. Refer to «TROUBLE SYMPTOM CHART FOR INPUT SIGNAL»(/mitsubishi/lancer-evolution/x-2007-2016/remont/communication-devices/#electronic-time-and-alarm-control-system-etacs-except-lancer-evolution__trouble-symptom-chart-for-input-signal) .
4. STEP 4. Retest the system. Check that the interior light automatic shutdown function works normally. Q: Is the check result normal? YES: The trouble can be an intermittent malfunction (Refer to «HOW TO COPE WITH INTERMITTENT MALFUNCTION»(/mitsubishi/lancer-evolution/x-2007-2016/remont/hoistjack/#general-information-except-lancer-evolution__how-to-cope-with-intermittent-malfunctions) ). NO: Replace the ETACS-ECU.

CUSTOMIZATION FUNCTION

By operating the ETACS system or MMCS of scan tool MB991958, the following functions can be programmed. The programmed information is held even when the battery is disconnected.

CUSTOMIZATION FUNCTION

Scheme 10

<< A >> FRONT DOME LIGHT REMOVAL

While pressing the front dome light toward the rear of the vehicle, slide the front side of the front dome light downward, and remove the front dome light.

Scheme 11

Scheme 12

Scheme 13

See also:
• TROUBLESHOOTING CONTENTS
• DIAGNOSIS
• TROUBLE SYMPTOM CHART FOR INPUT SIGNAL
• HARNESS CONNECTOR INSPECTION
• HOW TO COPE WITH INTERMITTENT MALFUNCTION
• ON-VEHICLE SERVICE
• INSPECTION PROCEDURE 1: THE FRONT DOME LIGHT DOES NOT ILLUMINATE NORMALLY.
• INSPECTION PROCEDURE 2: THE REAR DOME LIGHT DOES NOT ILLUMINATE NORMALLY.
• INSPECTION PROCEDURE 3: THE LUGGAGE COMPARTMENT LIGHT DOES NOT ILLUMINATE NORMALLY.
• INSPECTION PROCEDURE 4: THE INTERIOR LIGHT AUTO-CUT FUNCTION DOES NOT OPERATE CORRECTLY.
• HOW TO CONNECT SCAN TOO (M.U.T.-III)