Contents Section: Interior/illumination Lights All sections

Dome Light - Lancer Evolution: Diagnosis Mitsubishi Lancer X рестайлинг

Interior/illumination Lights 9 illustrations ~2701 words

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)
CAUTIONTo prevent damage to scan tool MB991958, always turn the ignition switch to the "LOCK" (OFF) position before connecting or disconnecting scan tool MB991958.

Scheme 19

Scheme 19
  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)
CAUTIONTo 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

Trouble symptomInspection Procedure
The front dome light does not illuminate normally.Refer to INSPECTION PROCEDURE 1: THE FRONT DOME LIGHT DOES NOT ILLUMINATE NORMALLY.
The rear dome light does not illuminate normally.Refer to INSPECTION PROCEDURE 2: THE REAR DOME LIGHT DOES NOT ILLUMINATE NORMALLY.
The luggage compartment light does not illuminate normally.Refer to INSPECTION PROCEDURE 3: THE LUGGAGE COMPARTMENT LIGHT DOES NOT ILLUMINATE NORMALLY.
The interior light auto-cut function does not operate correctly.Refer to INSPECTION PROCEDURE 4: THE INTERIOR LIGHT AUTO-CUT FUNCTION DOES NOT OPERATE CORRECTLY.

SYMPTOM CHART

Inspection Procedure 1: The Front Dome Light Does Not Illuminate Normally

CAUTIONWhenever the ECU is replaced, ensure that the power supply circuit, the ground circuit and the communication circuit are normal.

Scheme 20

Scheme 20

Scheme 21

Scheme 21

TROUBLE JUDGMENT

The ETACS-ECU illuminates and extinguishes the front 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

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 TOOL (M.U.T.-III)»(ref-592668-S19554611082014011000000) ." 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»(ref-592588-S03824957682014011000000) . 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. CONDITION CHART 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 «INPUT SIGNAL CHART»(ref-592588-S01762279742014011000000) .
  4. STEP 4. Check front dome light connector D-03 for loose, corroded or damaged terminals, or terminals pushed back in the connector. Q: Is front dome light connector D-03 in good condition? YES: Go to Step 5. NO: Repair or replace the damaged component(s). Refer to «HARNESS CONNECTOR INSPECTION»(ref-592584-S02750277482014011000000) .
  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»(ref-592584-S02750277482014011000000) .
  7. STEP 7. Check the wiring harness between front dome light connector D-03 (terminal 2, 3) and ETACS-ECU connector C-316 (terminal 6, 5) Check the line for open circuit. Q: Are wiring harness between front dome light connector D-03 (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-03 (terminal 1) and body ground. Check the ground wires for open circuit. Q: Is wiring harness between front dome light connector D-03 (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: Does the front dome light work normal? YES: The trouble can be an intermittent malfunction (Refer to «HOW TO COPE WITH INTERMITTENT MALFUNCTION»(ref-592586-S21436341472014011000000) ). NO: Replace the ETACS-ECU.

Inspection Procedure 2: The Rear Dome Light Does Not Illuminate Normally

CAUTIONWhenever the ECU is replaced, ensure that the power supply circuit, the ground circuit and the communication circuit are normal.

Scheme 22

Scheme 22

Scheme 23

Scheme 23

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

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 TOOL (M.U.T.-III)»(ref-592668-S19554611082014011000000) ." 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»(ref-592588-S03824957682014011000000) . 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. CONDITION CHART 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 «INPUT SIGNAL CHART»(ref-592588-S01762279742014011000000) .
  4. STEP 4. Check rear dome light connector D-07 for loose, corroded or damaged terminals, or terminals pushed back in the connector. Q: Is rear dome light connector D-07 in good condition? YES: Go to Step 5. NO: Repair or replace the damaged component(s). Refer to «HARNESS CONNECTOR INSPECTION»(ref-592584-S02750277482014011000000) .
  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-316 in good condition? YES: Go to Step 7. NO: Repair or replace the damaged component(s). Refer to «HARNESS CONNECTOR INSPECTION»(ref-592584-S02750277482014011000000) .
  7. STEP 7. Check the wiring harness between rear dome light D-07 connector (terminal 1, 2) and ETACS-ECU connector C-316 (terminal 6, 5) Check the line for open circuit. Q: Is wiring harness between rear dome light D-07 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»(ref-592586-S21436341472014011000000) ). NO: Replace the ETACS-ECU.

Inspection Procedure 3: The Luggage Compartment Light Does Not Illuminate Normally

CAUTIONWhenever the ECU is replaced, ensure that the power supply circuit, the ground circuit and the communication circuit are normal.

Scheme 24

Scheme 24

Scheme 25

Scheme 25

Scheme 26

Scheme 26

Scheme 27

Scheme 27

The ETACS-ECU illuminates and extinguishes the luggage compartment light in accordance with the input signals from trunk lid latch switch.

  1. Malfunction of trunk lid latch assembly
  2. Malfunction of luggage compartment 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, 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 TOOL (M.U.T.-III)»(ref-592668-S19554611082014011000000) ." 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»(ref-592588-S03824957682014011000000) . NO: Go to Step 2.
  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. CONDITION CHART 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 «INPUT SIGNAL CHART»(ref-592588-S01762279742014011000000) .
  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»(ref-592584-S02750277482014011000000) .
  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»(ref-592584-S02750277482014011000000) .
  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 line for open circuit. NOTE: Also check intermediate connector D-16 for loose, corroded, or damaged terminals, or terminals pushed back in the connector. If intermediate connector D-16 is damaged, repair or replace the connector as described in «HARNESS CONNECTOR INSPECTION»(ref-592584-S02750277482014011000000) . 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: Does the trunk room light work normal? YES: The trouble can be an intermittent malfunction (Refer to «HOW TO COPE WITH INTERMITTENT MALFUNCTION»(ref-592586-S21436341472014011000000) ). NO: Replace the ETACS-ECU.
  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)»(ref-592668-S19554611082014011000000) ." 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 «CUSTOMIZATION FUNCTION»(ref-592668-S11970484362014011000000) ).
  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 «DIAGNOSIS»(ref-592588-S03824957682014011000000) . 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. CONDITION CHART 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 «INPUT SIGNAL CHART»(ref-592588-S01762279742014011000000) .
  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»(ref-592586-S21436341472014011000000) ). NO: Replace the ETACS-ECU.