Rear Combination Light - Except Lancer Evolution Mitsubishi Lancer Evolution X

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1. The rear combination light assembly are integrated with the stop/taillight, rear turn-signal light and rear side-marker light.
2. The taillight assembly are integrated with the taillight and back-up light.

Scheme 2

1. The rear combination light assembly are integrated with the stop/taillight, rear turn-signal light and rear side-marker light.
2. The taillight assembly are integrated with the back-up light.

SPECIAL TOOLS

SPECIAL TOOLS Tool Tool number and name Supersession Application MB990784 Ornament remover General service tool Removal of trunk lid trim, rear combination light assembly, taillight assembly 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

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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)

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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)

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.

DIAGNOSTIC TROUBLE CODE CHART

DIAGNOSTIC TROUBLE CODE CHART

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TROUBLE JUDGMENT

When an open circuit is detected in the position light circuit, the taillight circuit or the rear side marker light circuit, the ETACS-ECU sets DTC B16A0. If a short circuit is detected, DTC B16A7 is set.

TECHNICAL DESCRIPTION (COMMENT)

The problem detection of the position light, the taillight or the rear side marker light is made based on the digital feed back signal (input signal to ETACS-ECU) which operates the position light, taillight or rear side marker light. When the ignition switch is "ON", the ETACS-ECU determines the position light circuit, the taillight circuit or the rear side marker light circuit state from the load placed on the line. After 100 ms has elapsed since the start of the check, the ETACS-ECU performs a sampling with each 10 ms. If an abnormality is detected, it increases the counter by 2, and when no abnormality is detected, it decreases the counter by 1. Once the counter reaches "10", the ETACS-ECU sets the DTC B16A0 if the load is detected on the line, and sets the DTC B16A7 if no load is detected.

TROUBLESHOOTING HINTS

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

DIAGNOSIS

Required Special Tools

1. MB992006: Extra fine probe
2. MB991223: Harness set
3. 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)

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1. STEP 1. Bulb check. Check the bulb(s) of the light that does not illuminate. Q: Is the check result normal? YES < LANCER >: Go to Step 2. YES < LANCER SPORTBACK >: Go to Step 7 . NO: Replace the bulb(s) of the light that does not illuminate.
2. STEP 2. Check headlight assembly (position light: RH) connector A-47, rear combination light (taillight/side marker light: RH) connector F-06 and taillight (RH) connector F-07 for loose, corroded or damaged terminals, or terminals pushed back in the connector. Q: Is headlight assembly (position light: RH) connector A-47, rear combination light (taillight/side marker light: RH) connector F-06 and taillight (RH) connector F-07 in good condition? YES: Go to Step 3. 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) .
3. STEP 3. Resistance measurement at headlight assembly (position light: RH) connector A-47, rear combination light (taillight/side marker light: RH) connector F-06 and taillight (RH) connector F-07. Disconnect the connector, and measure at the wiring harness side. Measure the resistance between the connector of light which does not illuminate and the body ground. Measure the resistance between headlight assembly (position light: RH) connector A-47 (terminal 6) and the body ground. Measure the resistance between rear combination light (taillight/side marker light: RH) connector F-06 (terminal 1) and the body ground. Measure the resistance between taillight (RH) connector F-07 (terminal 1) and the body ground. OK: The measured value should be continuity exists (2 ohms or less). Q: Does the measured resistance value correspond with this range? YES: Go to Step 5 . NO: Go to Step 4.
4. STEP 4. Check the wiring harness between headlight assembly connector, rear combination light connector or taillight connector and the body ground. Check the ground line for open circuit. Check the wiring harness between headlight assembly (position light: RH) connector A-47 (terminal 6) and the body ground. Check the wiring harness between rear combination light (taillight/side marker light: RH) connector F-06 (terminal 1) and the body ground. Check the wiring harness between taillight (RH) connector F-07 (terminal 1) and the body ground. NOTE: Also check intermediate connector F-23 for loose, corroded, or damaged terminals, or terminals pushed back in the connector. If intermediate connector F-23 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 the wiring harness between headlight assembly connector, rear combination light connector or tail light connector and the body ground in good condition? YES: Go to Step 12 . 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.
5. STEP 5. Check ETACS-ECU connectors C-304 and C-311 for loose, corroded or damaged terminals, or terminals pushed back in the connector. Q: Is ETACS-ECU connector C-304 or 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 wiring harness between headlight assembly connector, rear combination light connector, taillight connector and ETACS-ECU connector. Check the power supply line for open circuit or short circuit. Check the wiring harness between headlight assembly (position light: RH) connector A-47 (terminal 4) and ETACS-ECU connector C-304 (terminal 7). Check the wiring harness between rear combination light (taillight/side marker light: RH) connector F-06 (terminal 3) and ETACS-ECU connector C-311 (terminal 13). 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) . Check the wiring harness between taillight (RH) connector F-07 (terminal 2) and ETACS-ECU connector C-311 (terminal 13). NOTE: Also check intermediate connectors D-14 and F-23 for loose, corroded, or damaged terminals, or terminals pushed back in the connector. If intermediate connector D-14 or F-23 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 the wiring harness between headlight assembly connector, rear combination light connector, taillight connector and ETACS-ECU connector in good condition? YES: Go to Step 12 . 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. Check headlight assembly (position light: RH) connector A-47, rear combination light (taillight: RH) connector F-06 and rear side marker light (RH) connector F-35 for loose, corroded or damaged terminals, or terminals pushed back in the connector. Q: Is headlight assembly (position light: RH) connector A-47, rear combination light (taillight: RH) connector F-06 and rear side marker light (RH) connector F-35 in good condition? YES: Go to Step 8. 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) .
8. STEP 8. Resistance measurement at headlight assembly (position light: RH) connector A-47, rear combination light (taillight: RH) connector F-06 and rear side marker light (RH) connector F-35. Disconnect the connector, and measure at the wiring harness side. Measure the resistance between the connector of light which does not illuminate and the body ground. Measure the resistance between headlight assembly (position light: RH) connector A-47 (terminal 6) and the body ground. Measure the resistance between rear combination light (taillight: RH) connector F-06 (terminal 3) and the body ground. Measure the resistance between rear side marker light (RH) connector F-35 (terminal 1) and the body ground. OK: The measured value should be continuity exists (2 ohms or less). Q: Does the measured resistance value correspond with this range? YES: Go to Step 10 . NO: Go to Step 9.
9. STEP 9. Check the wiring harness between headlight assembly connector, rear combination light connector or rear side marker light connector and the body ground. Check the ground line for open circuit. Check the wiring harness between headlight assembly (position light: RH) connector A-47 (terminal 6) and the body ground. Check the wiring harness between rear combination light (taillight: RH) connector F-06 (terminal 3) and the body ground. Check the wiring harness between rear side marker light (RH) connector F-35 (terminal 1) and the body ground. Q: Is the wiring harness between headlight assembly connector, rear combination light connector or rear side marker light connector and the body ground in good condition? YES: Go to Step 12 . 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.
10. STEP 10. Check ETACS-ECU connectors C-304 and C-311 for loose, corroded or damaged terminals, or terminals pushed back in the connector. Q: Is ETACS-ECU connector C-304 or 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 wiring harness between headlight assembly connector, rear combination light connector, rear side marker light connector and ETACS-ECU connector. Check the power supply line for open circuit or short circuit. Check the wiring harness between headlight assembly (position light: RH) connector A-47 (terminal 4) and ETACS-ECU connector C-304 (terminal 7). Check the wiring harness between rear combination light (taillight: RH) connector F-06 (terminal 2) and ETACS-ECU connector C-311 (terminal 13). 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) . Check the wiring harness between rear side marker light (RH) connector F-35 (terminal 2) and ETACS-ECU connector C-311 (terminal 13). 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 the wiring harness between headlight assembly connector, rear combination light connector, rear side marker light connector and ETACS-ECU connector in good condition? YES: Go to Step 12. 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. Using scan tool MB991958, Check whether the diagnostic trouble code is reset. 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/exterior-lights/#rear-combination-light-except-lancer-evolution__how-to-connect-the-scan-tool) ." Turn the ignition switch to the "ON" position. Erase the DTC. Turn the ignition switch from "LOCK" (OFF) position to "ON" position. Check if DTC is set. Q: Is the DTC set? YES: Replace the ETACS-ECU. NO: The procedure is complete.

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Scheme 16

When an open circuit is detected in the position light circuit, the taillight circuit, the rear side marker light circuit or the license plate light circuit, the ETACS-ECU sets DTC B16A1. If a short circuit is detected, DTC B16A8 is set.

The problem detection of the position light, the taillight, the rear side marker light or license plate light is made based on the digital feed back signal (input signal to ETACS-ECU) which operates the taillight. When the ignition switch is "ON", the ETACS-ECU determines the position light circuit, the taillight circuit, the rear side marker light circuit or the license plate light circuit state from the load placed on the line. After 100 ms has elapsed since the start of the check, the ETACS-ECU performs a sampling with each 10 ms. If an abnormality is detected, it increases the counter by 2, and when no abnormality is detected, it decreases the counter by 1. Once the counter reaches "10", the ETACS-ECU sets the DTC B16A1 if the load is detected on the line, and sets the DTC B16A8 if no load is detected.

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

Required Special Tools

1. MB992006: Extra fine probe
2. MB991223: Harness set
3. 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)

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1. STEP 1. Bulb check. Check the bulb(s) of the light that does not illuminate. Q: Is the check result normal? YES < LANCER >: Go to Step 2. YES < LANCER SPORTBACK >: Go to Step 7 . NO: Replace the bulb(s) of the light that does not illuminate.
2. STEP 2. Check headlight assembly (position light: LH) connector A-31, rear combination light (taillight/side marker light: LH) connector F-20, taillight (LH) connector F-18, license plate light (LH) connector F-13 and license plate light (RH) connector F-11 for loose, corroded or damaged terminals, or terminals pushed back in the connector. Q: Is headlight assembly (position light: LH) connector A-31, rear combination light (taillight/side marker light: LH) connector F-20, taillight (LH) connector F-18, license plate light (LH) connector F-13 and license plate light (RH) connector F-11 in good condition? YES: Go to Step 3. 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) .
3. STEP 3. Resistance measurement at headlight assembly (position light: LH) connector A-31, rear combination light(taillight/side marker light: LH) connector F-20, taillight (LH) connector F-18, license plate light (LH) connector F-13 and license plate light (RH) connector F-11. Disconnect the connector, and measure at the wiring harness side. Measure the resistance between the connector of light which does not illuminate and the body ground. Measure the resistance between headlight assembly (position light: LH) connector A-31 (terminal 6) and body ground. Measure the resistance between the rear combination light (LH) connector F-20 (terminal 1) and the body ground. Measure the resistance between taillight (LH) connector F-18 (terminal 1) and body ground. Measure the resistance between license plate light (LH) connector F-13 (terminal 1) and body ground. Measure the resistance between license plate light (RH) connector F-11 (terminal 1) and body ground. OK: The measured value should be continuity exists (2 ohms or less). Q: Does the measured resistance value correspond with this range? YES: Go to Step 5 . NO: Go to Step 4.
4. STEP 4. Check the wiring harness between headlight assembly connector, rear combination light connector, taillight connector or license plate light and the body ground. Check the ground line for open circuit. Check the wiring harness between headlight assembly (position light: LH) connector A-31 (terminal 6) and the body ground. Check the wiring harness between rear combination light (taillight/side marker light: LH) connector F-20 (terminal 1) and the body ground. Check the wiring harness between taillight (LH) connector F-18 (terminal 1) and the body ground. NOTE: Also check intermediate connector F-23 for loose, corroded, or damaged terminals, or terminals pushed back in the connector. If intermediate connector F-23 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) . Check the wiring harness between license plate light (LH) connector F-13 (terminal 1) and the body ground. NOTE: Also check intermediate connector F-15 for loose, corroded, or damaged terminals, or terminals pushed back in the connector. If intermediate connector F-15 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) . Check the wiring harness between license plate light (RH) connector F-11 (terminal 1) and the body ground. NOTE: Also check intermediate connector F-15 for loose, corroded, or damaged terminals, or terminals pushed back in the connector. If intermediate connector F-15 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 the wiring harness between headlight assembly connector, rear combination light connector, taillight connector or license plate light and ground in good condition? YES: Go to Step 12 . 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.
5. STEP 5. Check ETACS-ECU connectors C-304 and C-311 for loose, corroded or damaged terminals, or terminals pushed back in the connector. Q: Is ETACS-ECU connectors C-304 and 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 wiring harness between headlight assembly connector, rear combination light connector, taillight connector or license plate light and ETACS-ECU connector. Check the power supply line for open circuit or short circuit. Check the wiring harness between headlight assembly (position light: LH) connector A-31 (terminal 4) and ETACS-ECU connector C-304 (terminal 3). Check the wiring harness between rear combination light (taillight/side side marker light: LH) connector F-20 (terminal 3) and ETACS-ECU connector C-311 (terminal 10). NOTE: Also check intermediate connectors 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) . Check the wiring harness between taillight (LH) connector F-18 (terminal 2) and ETACS-ECU connector C-311 (terminal 10). NOTE: Also check intermediate connectors D-14 and F-23 for loose, corroded, or damaged terminals, or terminals pushed back in the connector. If intermediate connector D-14 or F-23 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) . Check the wiring harness between license plate light (LH) connector F-13 (terminal 2) and ETACS-ECU connector C-311 (terminal 10). NOTE: Also check intermediate connectors D-14 and F-15 for loose, corroded, or damaged terminals, or terminals pushed back in the connector. If intermediate connector D-14 or F-15 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) . Check the wiring harness between license plate light (RH) connector F-11 (terminal 2) and ETACS-ECU connector C-311 (terminal 10). NOTE: Also check intermediate connectors D-14 and F-15 for loose, corroded, or damaged terminals, or terminals pushed back in the connector. If intermediate connector D-14 or F-15 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 the wiring harness between headlight assembly connector, rear combination light connector, taillight connector or license plate light and ETACS-ECU connector in good condition? YES: Go to Step 12 . 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. Check headlight assembly (position light: LH) connector A-31, rear combination light (taillight: LH) connector F-20, rear side marker light (LH) connector F-40, license plate light (LH) connector F-13 and license plate light (RH) connector F-11 for loose, corroded or damaged terminals, or terminals pushed back in the connector. Q: Is headlight assembly (position light: LH) connector A-31, rear combination light (taillight: LH) connector F-20, rear side marker light (LH) connector F-40, license plate light (LH) connector F-13 and license plate light (RH) connector F-11 in good condition? YES: Go to Step 8. 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) .
8. STEP 8. Resistance measurement at headlight assembly (position light: LH) connector A-31, rear combination light (taillight: LH) connector F-20, rear side marker light (LH) connector F-40, license plate light (LH) connector F-13 and license plate light (RH) connector F-11. Disconnect the connector, and measure at the wiring harness side. Measure the resistance between the connector of light which does not illuminate and the body ground. Measure the resistance between headlight assembly (position light: LH) connector A-31 (terminal 6) and body ground. Measure the resistance between the rear combination light (LH) connector F-20 (terminal 3) and the body ground. Measure the resistance between rear side marker light (LH) connector F-40 (terminal 1) and body ground. Measure the resistance between license plate light (LH) connector F-13 (terminal 1) and body ground. Measure the resistance between license plate light (RH) connector F-11 (terminal 1) and body ground. OK: The measured value should be continuity exists (2 ohms or less). Q: Does the measured resistance value correspond with this range? YES: Go to Step 10 . NO: Go to Step 9.
9. STEP 9. Check the wiring harness between headlight assembly connector, rear combination light connector, rear side marker light connector or license plate light and the body ground. Check the ground line for open circuit. Check the wiring harness between headlight assembly (position light: LH) connector A-31 (terminal 6) and the body ground. Check the wiring harness between rear combination light (taillight: LH) connector F-20 (terminal 3) and the body ground. Check the wiring harness between rear side marker light (LH) connector F-4 (terminal 1) and the body ground. Check the wiring harness between license plate light (LH) connector F-13 (terminal 1) and the body ground. NOTE: Also check intermediate connector F-31 for loose, corroded, or damaged terminals, or terminals pushed back in the connector. If intermediate connector F-31 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) . Check the wiring harness between license plate light (RH) connector F-11 (terminal 1) and the body ground. NOTE: Also check intermediate connector F-31 for loose, corroded, or damaged terminals, or terminals pushed back in the connector. If intermediate connector F-31 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 the wiring harness between headlight assembly connector, rear combination light connector, rear side marker light connector or license plate light and ground in good condition? YES: Go to Step 12 . 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.
10. STEP 10. Check ETACS-ECU connectors C-304 and C-311 for loose, corroded or damaged terminals, or terminals pushed back in the connector. Q: Is ETACS-ECU connectors C-304 and 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 wiring harness between headlight assembly connector, rear combination light connector, rear side marker light connector or license plate light and ETACS-ECU connector. Check the power supply line for open circuit or short circuit. Check the wiring harness between headlight assembly (position light: LH) connector A-31 (terminal 4) and ETACS-ECU connector C-304 (terminal 3). Check the wiring harness between rear combination light (taillight: LH) connector F-20 (terminal 2) and ETACS-ECU connector C-311 (terminal 10). NOTE: Also check intermediate connectors 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) . Check the wiring harness between rear side marker light (LH) connector F-40 (terminal 2) and ETACS-ECU connector C-311 (terminal 10). 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) . Check the wiring harness between license plate light (LH) connector F-13 (terminal 2) and ETACS-ECU connector C-311 (terminal 10). NOTE: Also check intermediate connectors D-14 and F-30 for loose, corroded, or damaged terminals, or terminals pushed back in the connector. If intermediate connector D-14 or F-30 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) . Check the wiring harness between license plate light (RH) connector F-11 (terminal 2) and ETACS-ECU connector C-311 (terminal 10). NOTE: Also check intermediate connectors D-14 and F-30 for loose, corroded, or damaged terminals, or terminals pushed back in the connector. If intermediate connector D-14 or F-30 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 the wiring harness between headlight assembly connector, rear combination light connector, rear side marker light connector or license plate light and ETACS-ECU connector in good condition? YES: Go to Step 12. 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. Using scan tool MB991958, Check whether the diagnostic trouble code is reset. 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/exterior-lights/#rear-combination-light-except-lancer-evolution__how-to-connect-the-scan-tool) ." Turn the ignition switch to the "ON" position. Erase the DTC. Turn the ignition switch from "LOCK" (OFF) position to "ON" position. Check if DTC is set. Q: Is the DTC set? YES: Replace the ETACS-ECU. NO: The procedure is complete.

TROUBLE SYMPTOM CHART

TROUBLE SYMPTOM CHART

Inspection Procedure 1: None of taillights illuminates

If none of taillights illuminates, the taillight switch input circuit or ETACS-ECU may have a problem.

1. Malfunction of column switch
2. Malfunction of the ETACS-ECU
3. The wiring harness or connectors may have loose, corroded, or damaged terminals, or terminals pushed back in the connector REAR COMBINATION LIGHT

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. License plate light operation check Check that the license plate light illuminates normally. Q: Does license plate 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)»(/mitsubishi/lancer-evolution/x-2007-2016/remont/exterior-lights/#rear-combination-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 taillight illumination. Turn the taillight switch to the "ON" position. DATA LIST ITEM NO. 218 Item No. Item name Normal conditions Item 218 Taillight ON Q: Does scan tool MB991958 display the items "Taillight" as normal condition? YES: Go to Step 4. NO: 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 taillight illuminates normally. Q: Does the taillight work normally? 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.

Scheme 26

Scheme 27

If one of the taillights does not Illuminate, the wiring harness, connector(s), or rear combination light unit may have a problem, or the fuse may be burned out.

1. Malfunction of rear combination light unit
2. The wiring harness or connectors may have loose, corroded, or damaged terminals, or terminals pushed back in the connector

Required Special Tools

1. MB992006: Extra fine probe
2. MB991223: Harness set
3. 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)

Scheme 28

Scheme 29

1. STEP 1. Bulb check. Check the bulb(s) of the light that does not illuminate. Q: Is the check result normal? YES < LANCER >: Go to Step 2. YES < LANCER SPORTBACK >: Go to Step 8 . NO: Replace the bulb(s) of the light that does not illuminate.
2. STEP 2. Check rear combination light connector F-20 (taillight/side marker light: LH) or F-06 (taillight/side marker light: RH) for loose, corroded or damaged terminals, or terminals pushed back in the connector. Q: Is rear combination light connector F-20 (taillight/side marker light: RH) or F-06 (taillight/side marker light: LH) in good condition? YES: Go to Step 3. 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) .
3. STEP 3. Resistance measurement at rear combination light connector F-20 (taillight/side marker light: LH) or F-06 (taillight/side marker light: RH). Disconnect the connector, and measure at the wiring harness side. Measure the resistance between the connector of light which does not illuminate and body ground. Measure the resistance between rear combination light (taillight/side marker light: LH) connector F-20 (terminal 1) and body ground. Measure the resistance between rear combination light (taillight/side marker light: RH) connector F-06 (terminal 1) and body ground. OK: The measured value should be continuity exists (2 ohms or less). Q: Does the measured resistance value correspond with this range? YES: Go to Step 5 . NO: Go to Step 4.
4. STEP 4. Check the wiring harness between rear combination light connectors F-20 (taillight/side marker light: LH) (terminal 1) or F-06 (taillight/side marker light: RH) (terminal 1) and ground. Q: Is the wiring harness between rear combination light connectors F-20 (taillight/side marker light: LH) (terminal 1) or F-06 (taillight/side marker light: RH) (terminal 1) and ground 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.
5. STEP 5. Check ETACS-ECU connectors 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 rear combination light connector and ETACS-ECU connector. Check the power supply line for open circuit. Check the wiring harness between rear combination light (taillight/side marker light: LH) connector F-20 (terminal 3) and ETACS-ECU connector C-311 (terminal 10). < LH > 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) . Check the wiring harness between rear combination light (taillight/side marker light: RH) connector F-06 (terminal 3) and ETACS-ECU connector C-311 (terminal 13). < RH > NOTE: Also check joint connector C-38 and intermediate connector D-11 for loose, corroded, or damaged terminals, or terminals pushed back in the connector. If joint connector C-38 or 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 the wiring harness between rear combination light connector and ETACS-ECU connector 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 taillight illuminates normally. Q: Does the taillight work normally? 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 defective rear combination light unit.
8. STEP 8. Check rear combination light connector F-20 (taillight: LH) or F-06 (taillight: RH), rear side marker light connector F-40 (LH) or F-35 (RH) for loose, corroded or damaged terminals, or terminals pushed back in the connector. Q: Is rear combination light connector F-20 (taillight: LH) or F-06 (taillight: RH), rear side marker light connector F-40 (LH) or F-35 (RH) in good condition? YES: Go to Step 9. 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) .
9. STEP 9. Resistance measurement at rear combination light connector F-20 (taillight: LH) or F-06 (taillight: RH), rear side marker light connector F-40 (LH) or F-35 (RH)). Disconnect the connector, and measure at the wiring harness side. Measure the resistance between the connector of light which does not illuminate and the body ground. Measure the resistance between rear combination light connector F-20 (taillight: LH) or F-06 (taillight: RH) (terminal 3) and body ground. Measure the resistance between rear side marker light connector F-40 (LH) or F-35 (RH) (terminal 1) and body ground. OK: The measured value should be continuity exists (2 ohms or less). Q: Does the measured resistance value correspond with this range? YES: Go to Step 11 . NO: Go to Step 10.
10. STEP 10. Check the wiring harness between rear combination light connector or rear side marker light connector and the body ground. Check the ground line for open circuit. Check the wiring harness between rear combination light connector F-20 (taillight: LH) (terminal 3) and the body ground. Check the wiring harness between rear combination light connector F-06 (taillight: RH) (terminal 3) and the body ground. Check the wiring harness between rear side marker light connector F-40 (LH) (terminal 1) and the body ground. Check the wiring harness between rear side marker light connector F-35 (RH) (terminal 1) and the body ground. Q: Is the wiring harness between rear combination light connector or rear side marker light connector and the body ground in good condition? YES: Go to Step 13 . NO: Repair the wiring harness.
11. STEP 11. Check ETACS-ECU connector C-311 for loose, corroded or damaged terminals, or terminals pushed back in the connector. Q: Is ETACS-ECU connector C-311 in good condition? YES: Go to Step 12. NO: Repair the damaged parts.
12. STEP 12. Check wiring harness between rear combination light connector or rear side marker light connector and ETACS-ECU connector. Check the power supply line for open circuit or short circuit. Check the wiring harness between rear combination light (taillight: LH) connector F-20 (terminal 2) and ETACS-ECU connector C-311 (terminal 10). NOTE: Also check intermediate connectors 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) . Check the wiring harness between rear combination light (taillight: RH) connector F-06 (terminal 2) and ETACS-ECU connector C-311 (terminal 13). NOTE: Also check joint connector C-38 and intermediate connector D-11 for loose, corroded, or damaged terminals, or terminals pushed back in the connector. If joint connector C-38 or 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) . Check the wiring harness between rear side marker light (LH) connector F-40 (terminal 2) and ETACS-ECU connector C-311 (terminal 10). 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) . Check the wiring harness between rear side marker light (RH) connector F-35 (terminal 2) and ETACS-ECU connector C-311 (terminal 13). NOTE: Also check intermediate connector D-11 and joint connector C-38 for loose, corroded, or damaged terminals, or terminals pushed back in the connector. If intermediate connector D-11 or joint connector C-38 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 the wiring harness between rear combination light connector or rear side marker light connector and ETACS-ECU connector in good condition? YES: Go to Step 13. NO: Repair the wiring harness.
13. STEP 13. Retest the system. Check that the taillight or rear side marker light illuminate normally. Q: Do the taillight or rear side marker light work normally? YES (The light illuminate normally): 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 < When the rear combination light (taillight) do not illuminate >: Replace the rear combination light socket. NO < When the rear side marker light do not illuminate >: Replace the rear side marker light socket.

Scheme 30

Scheme 31

<< A >> REAR COMBINATION LIGHT ASSEMBLY REMOVAL

Remove the rear combination light assembly by pulling it toward a diagonal rear direction.

Scheme 32

>> A << REAR COMBINATION LIGHT BRACKET INSTALLATION

1. Temporarily fix the rear combination light bracket.
2. Install the rear combination light assembly to the specified torque.
3. Install the rear combination light bracket to the specified torque.

Scheme 33

Scheme 34

See also:
• TROUBLESHOOTING CONTENTS
• HARNESS CONNECTOR INSPECTION
• DIAGNOSTIC TROUBLE CODE CHART
• TROUBLE SYMPTOM CHART FOR INPUT SIGNAL
• HOW TO COPE WITH INTERMITTENT MALFUNCTION
• B16A0
• HOW TO CONNECT SCAN TOOL (M.U.T.-III)
• INSPECTION PROCEDURE 1: NONE OF TAILLIGHTS ILLUMINATES.