Exterior - Lancer Evolution: Diagnosis Mitsubishi Lancer X

STANDARD FLOW OF DIAGNOSTIC TROUBLESHOOTING

Refer to CONTENTS OF TROUBLESHOOTING .

TROUBLE SYMPTOM CHART

TROUBLE SYMPTOM CHART

Note. Even when the ETACS-ECU has failed, the windshield wipers can work at low speed as fail-safe mode.

Scheme 2

TROUBLESHOOTING HINTS

1. Trouble in input signal system
2. The wiring harness or connectors may have loose, corroded, or damaged terminals, or terminals pushed back in the connector
3. The wiper motor may be defective
4. The column switch may be defective
5. The ETACS-ECU may be defective

DIAGNOSIS

Required Special Tools

1. MB991223: Harness Set
2. MB992006: Extra Fine Probe
3. MB991958: Scan Tool (M.U.T.-III Sub Assembly) MB991824: V.C.I. MB991827: M.U.T.-III USB Cable MB991910: M.U.T.-III Main Harness A

Scheme 3

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Scheme 5

Scheme 6

Scheme 7

Scheme 8

1. STEP 1. Use the scan tool MB991958 to check if an ETACS-related diagnostic trouble code is set. Connect the scan tool. Refer to " «HOW TO CONNECT THE SCAN TOOL (M.U.T.-III)»(ref-289392-S04956108712008063000000) ". Q: Is the diagnostic trouble code set? YES : Diagnose the ETACS-ECU. Refer to " «DIAGNOSTIC TROUBLE CODE CHART»(ref-289392-S29242288832008063000000) ". NO : Go to Step 2.
2. STEP 2. Using scan tool MB991958, check data list. Check the input signal related to the windshield wiper. operation. Ignition switch: ACC Operate the windshield wiper switch at each switch position. WINDSHIELD WIPER SWITCH REFERENCE Item No. Item name Windshield wiper switch position Normal condition Item 235 Front wiper ACT LO ON HI INT ON and OFF MIST ON Item 288 ACC switch ON OK: Normal condition is displayed. Q: Is the check result normal? YES < Normal conditions are displayed for all items > : Go to Step 3. NO < Normal condition is not displayed for item No. 235 > : Troubleshoot the ETACS-ECU. Refer to «INSPECTION PROCEDURE 12 "ETACS-ECU DOES NOT RECEIVE ANY SIGNAL FROM THE COLUMN SWITCH SIGNAL."»(ref-289392-S38881337172008063000000) . NO < Normal condition is not displayed for item No. 288 > : Refer to «INSPECTION PROCEDURE 1 "THE IGNITION SWITCH (ACC) SIGNAL IS NOT RECEIVED"»(ref-289392-S22753813242008063000000) .
3. STEP 3. Check windshield wiper motor connector A-06 for loose, corroded or damaged terminals, or terminals pushed back in the connector. Q: Is windshield wiper motor connector A-06 in good condition? YES : Go to Step 4. NO : Repair or replace the damaged component(s). Refer to «HARNESS CONNECTOR INSPECTION»(ref-289377-S30386868932008063000000) . Verify that the windshield wiper works normally.
4. STEP 4. Check the windshield wiper motor. Disconnect windshield wiper motor connector A-06. Connect a battery to the windshield wiper motor as shown. Then check that the windshield wiper motor operates normally at high and low speeds. Q: Does the windshield wiper motor operate normally? YES : Go to Step 5. NO : Replace the windshield wiper motor. Verify that the windshield wiper works normally.
5. STEP 5. Check the ground circuit to the windshield wiper motor. Measure the resistance at the windshield wiper motor connector A-06. Disconnect windshield wiper motor connector A-06 and measure the resistance available at the wiring harness side of the connector. Measure the resistance value between terminal 2 and ground. The resistance should be 2 ohms or less. Q: Is the measured resistance 2 ohms or less? YES : Go to Step 7 . NO : Go to Step 6.
6. STEP 6. Check the wiring harness between windshield wiper motor connector A-06 (terminal 2) and ground. Q: Is the wiring harness between windshield wiper motor connector A-06 (terminal 2) and ground in good condition? YES : No action is necessary and testing is complete. 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. Verify the windshield wiper works normally.
7. STEP 7. Check ETACS-ECU connector C-309 for loose, corroded or damaged terminals, or terminals pushed back in the connector. Q: Is ETACS-ECU connector C-309 in good condition? YES : Go to Step 8. NO : Repair or replace the damaged component(s). Refer to «HARNESS CONNECTOR INSPECTION»(ref-289377-S30386868932008063000000) . Verify that the windshield wiper works normally.
8. STEP 8. Measure the voltage at ETACS-ECU connector C-309. Disconnect ETACS-ECU connector C-309 and measure the resistance available at the wiring harness side of the connector. Measure the voltage between terminal 1 and ground. The voltage should measure approximately 12 volts (battery positive voltage). Q: Is the measured voltage approximately 12 volts (battery positive voltage)? YES : Go to Step 10 . NO : Go to Step 9.
9. STEP 9. Check the wiring harness between ETACS-ECU connector C-309 (terminal 1) and the fusible link (34). Check the power supply line for open circuits. Q: Is the wiring harness between ETACS-ECU connector C-309 (terminal 1) and the fusible link (34) in good condition? YES : Intermittent malfunction. Refer to «HOW TO COPE WITH INTERMITTENT MALFUNCTION»(ref-289379-S36733983872008063000000) . NO : Repair or replace the damaged component(s). Refer to «CABLES AND WIRE CHECK»(ref-289377-S25992573652008063000000) .
10. STEP 10. Check ETACS-ECU connector C-304 for loose, corroded or damaged terminals, or terminals pushed back in the connector. Q: Is ETACS-ECU connector C-304 in good condition? YES : Go to Step 11. NO : Repair the damaged connector.
11. STEP 11. Measure the voltage at ETACS-ECU connector C-304. Disconnect ETACS-ECU connector C-304 and measure the resistance available at the wiring harness side of the connector. Ignition switch: ACC windshield wiper switch: HI Measure the voltage between C-304 ETACS-ECU connector terminal No. 5 and body ground. OK: Battery voltage windshield wiper switch: LO Measure the voltage between C-304 ETACS-ECU connector terminal No. 6 and body ground. OK: Battery voltage Q: Is the measured voltage approximately 12 volts (battery positive voltage)? YES : Go to Step 13 . NO : Go to Step 12.
12. STEP 12. Check the wiring harness between ETACS-ECU connector C-304 (terminals 5, 6) and windshield wiper motor connector A-06 (terminals 4, 1). Check the input and output lines for open or short circuit. Q: Is the wiring harness between ETACS-ECU connector C-304 (terminals 5, 6) and windshield wiper motor connector A-06 (terminals 4, 1) in good condition? YES : Go to Step 13. NO : Repair or replace the damaged component(s). Refer to «CABLES AND WIRE CHECK»(ref-289377-S25992573652008063000000) .
13. STEP 13. Retest the system. Check that the windshield wipers work normally. Q: Is the check result normal? YES : Intermittent malfunction. Refer to «HOW TO COPE WITH INTERMITTENT MALFUNCTION»(ref-289379-S36733983872008063000000) . NO : Replace the ETACS-ECU.

Scheme 9

1. The wiring harness or connectors may have loose, corroded, or damaged terminals, or terminals pushed back in the connector
2. The column switch may be defective
3. The ETACS-ECU may be defective
4. The LIN bus line may be defective

Required Special Tools

1. MB991223: Harness Set
2. MB992006: Extra Fine Probe
3. MB991958: Scan Tool (M.U.T.-III Sub Assembly) MB991824: V.C.I. MB991827: M.U.T.-III USB Cable MB991910: M.U.T.-III Main Harness A

1. STEP 1. Use the scan tool MB991958 to check if an ETACS-related diagnostic trouble code is set. Connect the scan tool. Refer to " «HOW TO CONNECT THE SCAN TOOL (M.U.T.-III)»(ref-289392-S04956108712008063000000) ". Q: Is the diagnostic trouble code set? YES : Diagnose the ETACS-ECU. Refer to " «DIAGNOSTIC TROUBLE CODE CHART»(ref-289392-S29242288832008063000000) ". NO : Go to Step 2.
2. STEP 2. Using scan tool MB991958, check data list. Check the input signal related to the windshield wiper operation. Ignition switch: ACC Operate the windshield wiper switch at each switch position. WINDSHIELD WIPER SWITCH REFERENCE Item No. Item name Windshield wiper switch position Normal condition Item 235 Front wiper ACT LO ON HI INT ON and OFF MIST ON Item 236 Front wiper Lo/Hi LO OFF HI ON INT OFF MIST ON OK: Normal condition is displayed. Q: Is the check result normal? YES : Go to Step 3. NO : Troubleshoot the ETACS-ECU. Refer to «INSPECTION PROCEDURE 12 "ETACS-ECU DOES NOT RECEIVE ANY SIGNAL FROM THE COLUMN SWITCH SIGNAL."»(ref-289392-S38881337172008063000000) .
3. STEP 3. Retest the system. Check that the windshield wipers work normally. Q: Is the check result normal? YES : Intermittent malfunction. Refer to «HOW TO COPE WITH INTERMITTENT MALFUNCTION»(ref-289379-S36733983872008063000000) . NO : Replace the ETACS-ECU.

Scheme 10

1. The wiring harness or connectors may have loose, corroded, or damaged terminals, or terminals pushed back in the connector
2. The windshield wiper motor may be defective
3. The ETACS-ECU may be defective

Required Special Tools

1. MB991223: Harness Set
2. MB992006: Extra Fine Probe

Scheme 11

Scheme 12

1. STEP 1. Check windshield wiper motor connector A-06 for loose, corroded or damaged terminals, or terminals pushed back in the connector. Q: Is windshield wiper motor connector A-06 in good condition? YES : Go to Step 2. NO : Repair or replace the damaged component(s). Refer to «HARNESS CONNECTOR INSPECTION»(ref-289377-S30386868932008063000000) . Verify that the windshield wiper works normally.
2. STEP 2. Check the windshield wiper motor. Disconnect windshield wiper motor connector A-06. Connect the vehicle battery to the windshield wiper motor connector as shown, and operate the windshield wiper at low speed. While the windshield wiper is working, disconnect the battery at positions other than the specified park position to stop the windshield wiper motor. When the battery is connected as shown, the motor should run at low speed, and then stop at the specified park position. Q: Does the windshield wiper motor operate normally? YES : Go to Step 3. NO : Replace the windshield wiper motor. The windshield wiper should now stop at the specified park position.
3. STEP 3. Check the ground circuit to the windshield wiper motor. Measure the resistance at the windshield wiper motor connector A-06. Disconnect windshield wiper motor connector A-06 and measure the voltage available at the wiring harness side of the connector. Turn the ignition switch to the "ACC" position. Measure the voltage between terminal 3 and ground. The voltage should measure approximately 12 volts (battery positive voltage). Q: Is the measured voltage approximately 12 volts (battery positive voltage)? YES : Go to Step 6 . NO : Go to Step 4.
4. STEP 4. Check ETACS-ECU connector C-304 for loose, corroded or damaged terminals, or terminals pushed back in the connector. Q: Is ETACS-ECU connector C-304 in good condition? YES : Go to Step 5. NO : Repair or replace the damaged component(s). Refer to «HARNESS CONNECTOR INSPECTION»(ref-289377-S30386868932008063000000) .
5. STEP 5. Check the wiring harness between ETACS-ECU connector C-304 (terminals 8, 12) and windshield wiper motor connector A-06 (terminals 3, 5). Check the output lines for open or short circuits. Q: Is the wiring harness between ETACS-ECU connector C-304 (terminals 8, 12) and windshield wiper motor connector A-06 (terminals 3, 5) in good condition? YES : Go to Step 6. NO : Repair or replace the damaged component(s). Refer to «CABLES AND WIRE CHECK»(ref-289377-S25992573652008063000000) .
6. STEP 6. Retest the system. Check that the windshield wipers stops at the specified park position. Q: Is the check result normal? YES : Intermittent malfunction. Refer to «HOW TO COPE WITH INTERMITTENT MALFUNCTION»(ref-289379-S36733983872008063000000) . NO : Replace the ETACS-ECU.

Scheme 13

1. Trouble in input signal system
2. The wiring harness or connectors may have loose, corroded, or damaged terminals, or terminals pushed back in the connector
3. The wiper motor may be defective
4. The column switch may be defective
5. The ETACS-ECU may be defective

Required Special Tools

1. MB991223: Harness Set
2. MB992006: Extra Fine Probe
3. MB991958: Scan Tool (M.U.T.-III Sub Assembly) MB991824: V.C.I. MB991827: M.U.T.-III USB Cable MB991910: M.U.T.-III Main Harness A

Scheme 14

1. STEP 1. Use the scan tool MB991958 to check if an ETACS-related diagnostic trouble code is set. Connect the scan tool. Refer to " «HOW TO CONNECT THE SCAN TOOL (M.U.T.-III)»(ref-289416-S40476637342008063000000) ". Q: Is the diagnostic trouble code set? YES : Diagnose the ETACS-ECU. Refer to «DIAGNOSTIC TROUBLE CODE CHART»(ref-289392-S29242288832008063000000) ". NO : Go to Step 2.
2. STEP 2. Using scan tool MB991958, check data list. Check the input signal related to the windshield wiper operation. Ignition switch: ACC Operate the windshield wiper switch at each switch position. WINDSHIELD WIPER SWITCH REFERENCE Item No. Item name Windshield wiper switch position Normal condition Item 235 Front wiper ACT LO ON HI INT ON and OFF MIST ON Item 236 Front wiper Lo/Hi LO OFF HI ON INT OFF MIST ON OK: Normal condition is displayed. Q: Is the check result normal? YES : Go to Step 3. NO : Troubleshoot the ETACS-ECU. Refer to «INSPECTION PROCEDURE 12 "ETACS-ECU DOES NOT RECEIVE ANY SIGNAL FROM THE COLUMN SWITCH SIGNAL."»(ref-289392-S38881337172008063000000) .
3. STEP 3. Check that the windshield wipers work. Check that the windshield wipers work at high speed and the mist mode. Q: Is the check result normal? YES : Go to Step 4. NO : Go to Step 10 .
4. STEP 4. Check windshield wiper motor connector A-06 for loose, corroded or damaged terminals, or terminals pushed back in the connector. Q: Is windshield wiper motor connector A-06 in good condition? YES : Go to Step 5. NO : Repair or replace the damaged component(s). Refer to «HARNESS CONNECTOR INSPECTION»(ref-289377-S30386868932008063000000) . Verify that the windshield wiper operates normally when the windshield wiper switch is moved to each position.
5. STEP 5. Check the windshield wiper motor. Disconnect windshield wiper motor connector A-06. Connect a battery to the windshield wiper motor as shown. Then check if the windshield wiper motor operates normally at high and low speeds. Q: Does the windshield wiper motor operate normally? YES : Go to Step 6. NO : Replace the windshield wiper motor. Verify that the windshield wiper operates normally when the windshield wiper switch is moved to each position.
6. STEP 6. Measure the voltage at windshield wiper motor connector A-06 Disconnect the connector, and measure the voltage at the wiring harness side. Ignition switch: ACC windshield wiper switch: LO Measure the voltage between A-06 windshield wiper motor connector terminal No. 3 and body ground. OK: Battery voltage Q: Is the measured voltage approximately 12 volts (battery positive voltage)? YES : Intermittent malfunction (Refer to «HOW TO COPE WITH INTERMITTENT MALFUNCTION»(ref-289379-S36733983872008063000000) ). NO : Go to Step 7.
7. STEP 7. Check ETACS-ECU connector C-304 for loose, corroded or damaged terminals, or terminals pushed back in the connector. Q: Is ETACS-ECU connector C-304 in good condition? YES : Go to Step 8. NO : Repair or replace the damaged component(s). Refer to «HARNESS CONNECTOR INSPECTION»(ref-289377-S30386868932008063000000) . Verify that the windshield wiper operates normally when the windshield wiper switch is moved to each position.
8. STEP 8. Check the wiring harness between windshield wiper motor connector A-06 (terminals 1) and ETACS-ECU connector C-304 (terminals 6). Q: Is the wiring harness between windshield wiper motor connector A-06 (terminals 1) and ETACS-ECU connector C-304 (terminals 6) in good condition? YES : 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. Verify that the windshield wiper operates normally when the windshield wiper switch is moved to each position.
9. STEP 9. Retest the system. Check that the windshield wipers work normally by moving the switch to each position. Q: Is the check result normal? YES : Intermittent malfunction (Refer to «HOW TO COPE WITH INTERMITTENT MALFUNCTION»(ref-289379-S36733983872008063000000) ). NO : Replace the ETACS-ECU.
10. STEP 10. Check the A-06 windshield wiper motor connector Q: Is the check result normal? YES : Go to Step 11. NO : Repair the connector concerned.
11. STEP 11. Check the windshield wiper motor. Disconnect windshield wiper motor connector A-06. Connect a battery to the windshield wiper motor as shown. Then check if the windshield wiper motor operates normally at high and low speeds. Q: Does the windshield wiper motor operate normally? YES : Go to Step 12. NO : Replace the windshield wiper motor. Verify that the windshield wiper operates normally when the windshield wiper switch is moved to each position.
12. STEP 12. Measure the voltage at the A-06 windshield wiper motor connector. Disconnect the connector, and measure the voltage at the wiring harness side. Ignition switch: ACC Windshield wiper switch: HI,MIST Measure the voltage between A-06 windshield wiper motor connector terminal No.4 and body ground. OK: Battery voltage Q: Is the check result normal? YES : Intermittent malfunction (Refer to «HOW TO COPE WITH INTERMITTENT MALFUNCTION»(ref-289379-S36733983872008063000000) ). NO : Go to Step 13.
13. STEP 13. Check ETACS-ECU connector C-304 for loose, corroded or damaged terminals, or terminals pushed back in the connector. Q: Is ETACS-ECU connector C-304 in good condition? YES : Go to Step 14. NO : Repair or replace the damaged component(s). Refer to «HARNESS CONNECTOR INSPECTION»(ref-289377-S30386868932008063000000) . Verify that the windshield wiper operates normally when the windshield wiper switch is moved to each position.
14. STEP 14. Check the wiring harness wires between C-304 ETACS-ECU connector terminal No. 5 and A-05 windshield wiper motor connector terminal No.4. Check the output lines for open or short circuit. Q: Is the check result normal? YES : Go to Step 15. NO : Repair the wiring harness.
15. STEP 15. Retest the system. Check that the windshield wipers work normally by moving the switch to each position. Q: Is the check result normal? YES : Intermittent malfunction (Refer to «HOW TO COPE WITH INTERMITTENT MALFUNCTION»(ref-289379-S36733983872008063000000) ). NO : Replace the ETACS-ECU.

Scheme 15

1. Trouble in input signal system
2. The wiring harness or connectors may have loose, corroded, or damaged terminals, or terminals pushed back in the connector
3. The column switch may be defective
4. The ETACS-ECU may be defective

Required Special Tools

1. MB991223: Harness Set
2. MB992006: Extra Fine Probe
3. MB991958: Scan Tool (M.U.T.-III Sub Assembly) MB991824: V.C.I. MB991827: M.U.T.-III USB Cable MB991910: M.U.T.-III Main Harness A

1. STEP 1. Use the scan tool MB991958 to check if an ETACS-related diagnostic trouble code is set. Connect the scan tool. Refer to " «HOW TO CONNECT THE SCAN TOOL (M.U.T.-III)»(ref-289392-S04956108712008063000000) ". Q: Is the diagnostic trouble code set? YES : Diagnose the ETACS-ECU. Refer to " «DIAGNOSTIC TROUBLE CODE CHART»(ref-289392-S29242288832008063000000) ". NO : Go to Step 2.
2. STEP 2. Check the ETACS configuration function. Use the ETACS configuration function to check that "Front wiper operation" is set to "Variable INT" or "Speed sensitive". Q: Is the check result normal? YES : Go to Step 3. NO : Use the ETACS configuration function to set "Front wiper operation" to "variable INT" or "Speed sensitive". (Refer to «LIGHTING CONTROL SENSOR (RAIN SENSOR) INSPECTION»(ref-289387-S34434728282008063000000) .)
3. STEP 3. Using scan tool MB991958, check data list. Check the input signal related to the windshield wiper operation. Ignition switch: ACC Rotate the windshield wiper interval control from (+) to (-) side. ROTATE WINDSHIELD WIPER REFERENCE CHART Item No. Display on scan tool Check conditions Normal condition Item 359 Front wiper (interval volume) Rotate the windshield wiper interval control from (+) to (-) side. Value changes from (+) to 254 (-) OK: Normal condition is displayed. Q: Is the check result normal? NO : Go to Step 4. YES : Replace the column switch.
4. STEP 4. Retest the system. Check that the windshield wiper interval changes when the windshield wiper interval control is rotated. Q: Is the check result normal? YES : Intermittent malfunction. Refer to «HOW TO COPE WITH INTERMITTENT MALFUNCTION»(ref-289379-S36733983872008063000000) . NO : Replace the ETACS-ECU.

1. The wiring harness or connectors may have loose, corroded, or damaged terminals, or terminals pushed back in the connector
2. The combination meter may be defective
3. The ETACS-ECU may be defective

Required Special Tools

1. MB991223: Harness Set
2. MB992006: Extra Fine Probe
3. MB991958: Scan Tool (M.U.T.-III Sub Assembly) MB991824: V.C.I. MB991827: M.U.T.-III USB Cable MB991910: M.U.T.-III Main Harness A

1. STEP 1. Retest the system. Check that the windshield intermittent wiper interval can be adjusted by operating the windshield intermittent wiper interval control switch. Q: Is the check result normal? YES : Go to Step 2. NO : Refer to «INSPECTION PROCEDURE 5 "THE WINDSHIELD INTERMITTENT WIPER INTERVAL CANNOT BE ADJUSTED BY OPERATING THE WINDSHIELD INTERMITTENT WIPER INTERVAL CONTROL SWITCH."»(ref-289387-S02341577462008063000000) .
2. STEP 2. Check the ETACS configuration function. Use the ETACS configuration function to check that "Front wiper operation" is set to "Variable INT" or "Speed sensitive". Q: Is the check result normal? YES : Go to Step 3. NO : Use the ETACS configuration function to set "Front wiper operation" to "variable INT" or "Speed sensitive". (Refer to «LIGHTING CONTROL SENSOR (RAIN SENSOR) INSPECTION»(ref-289387-S34434728282008063000000) .)
3. STEP 3. Using scan tool MB991958, check data list. Check the input signal related to the combination meter. Drive the vehicle and change vehicle speed. DATA LIST Item No. Display on scan tool Check condition Normal condition Item 80 speedometer Speedometer and scan tool displays meet Q: Is the check result normal? YES : Go to Step 4. NO < Normal condition is not displayed for item No. 80. > : Troubleshoot the speedometer (Refer to «INSPECTION PROCEDURE 2: "THE SPEEDOMETER DOES NOT WORK (THE OTHER METERS WORK)."»(ref-289392-S17347138192008063000000) )
4. STEP 4. Retest the system. Check that the intermittent wiper interval depends on the vehicle speed. Q: Is the check result normal? YES : Intermittent malfunction. Refer to «HOW TO COPE WITH INTERMITTENT MALFUNCTION»(ref-289379-S36733983872008063000000) . NO : Replace the ETACS-ECU.

INSPECTION PROCEDURE 7: The rain sensitive AUTO wiper function does not work at all < Vehicles with lighting control sensor >

Scheme 16

1. Defective column switch (column-ECU)
2. Malfunction of the lighting control sensor
3. Defective windshield wiper motor
4. Malfunction of ETACS-ECU
5. Damaged wiring harness and connectors

Required Special Tools

1. MB991223: Harness Set
2. MB992006: Extra Fine Probe
3. MB991958: Scan Tool (M.U.T.-III Sub Assembly) MB991824: V.C.I. MB991827: M.U.T.-III USB Cable MB991910: M.U.T.-III Main Harness A

Scheme 17

Scheme 18

Scheme 19

1. STEP 1. Lighting control sensor installation surface check Visually check the presence of scratches or air bubbles (diameter of 5 mm or more) on the windshield to which the lighting control sensor is installed. Q: Is the check result normal? YES : Go to Step 2. NO : Replace the windshield (Refer to «REMOVAL AND INSTALLATION»(ref-289409-S04185953382008063000000) ).
2. STEP 2. Windshield wiper operation check Check that the windshield wipers work normally. Q: Is the check result normal? YES : Go to Step 3. NO : Refer to «TROUBLE SYMPTOM CHART»(ref-289387-S11653593322008063000000) .
3. STEP 3. Use the scan tool MB991958 to check if an ETACS-related diagnostic trouble code is set. Connect the scan tool. Refer to " «HOW TO CONNECT THE SCAN TOOL (M.U.T.-III)»(ref-289392-S04956108712008063000000) ". Q: Is the diagnostic trouble code set? YES : Diagnose the ETACS-ECU. Refer to " «DIAGNOSTIC TROUBLE CODE CHART»(ref-289392-S29242288832008063000000) ". NO : Go to Step 4.
4. STEP 4. Using scan tool MB991958, read the lighting control sensor diagnostic trouble code. Check if a lighting control sensor diagnostic trouble code is set. Connect the scan tool. Refer to " «HOW TO CONNECT THE SCAN TOOL (M.U.T.-III)»(ref-289392-S04956108712008063000000) ". Q: Is the diagnostic trouble code set? YES : Diagnose the lighting control sensor. [Diagnostic Trouble Code: (Refer to «DIAGNOSIS CODE CHART»(ref-289392-S41956863062008063000000) ) or Service Data ( «DATA LIST REFERENCE TABLE»(ref-289387-S41686505942008063000000) ).] NO : Go to Step 5.
5. STEP 5. Connector check: D-02 Lighting control sensor connector Q: Is the check result normal? YES : Go to Step 6. NO : Repair the damaged connector.
6. STEP 6. Resistance measurement at the D-02 lighting control sensor connector Disconnect the connector, and measure the resistance at the wiring harness. Measure the resistance between D-02 lighting control sensor connector terminal No.2 and body ground. OK: Continuity exists (2 ohms or less) Q: Is the check result normal? YES : Go to Step 8 . NO : Go to Step 7.
7. STEP 7. Check the wiring harness between D-02 lighting control sensor connector terminal No.2 and body ground. Check the ground wires for open circuit. Q: Is the check result normal? YES : Intermittent malfunction (Refer to «HOW TO COPE WITH INTERMITTENT MALFUNCTION»(ref-289379-S36733983872008063000000) .) NO : Repair the wiring harness.
8. STEP 8. Voltage measurement at the D-02 lighting control sensor connector Disconnect the connector, and measure the voltage at the wiring harness side. Measure the voltage between D-02 lighting control sensor connector terminal No.1 and body ground. OK: Battery voltage Q: Is the check result normal? YES : Go to Step 10 . NO : Go to Step 9.
9. STEP 9. Check the wiring harness between D-02 lighting control sensor connector terminal No.1 and fusible link (36). NOTE: Prior to the wiring harness inspection, check intermediate connector C-133, ETACS-ECU connectors C-307 and C-317, and repair if necessary. Check the power supply line for open circuit. Q: Is the check result normal? YES : Intermittent malfunction (Refer to «HOW TO COPE WITH INTERMITTENT MALFUNCTION»(ref-289379-S36733983872008063000000) .) NO : Repair the wiring harness.
10. STEP 10. Connector check: C-316 ETACS-ECU connector Q: Is the check result normal? YES : Go to Step 11. NO : Repair the damaged connector.
11. STEP 11. Measure the voltage at the C-316 ETACS-ECU connector. Disconnect the connector, and measure the voltage at the wiring harness side. Measure the voltage between C-316 ETACS-ECU connector terminal No. 1 and body ground. OK: Battery voltage Q: Is the check result normal? YES : Replace the Lighting control sensor. NO : Go to Step 12.
12. STEP 12. Check the wiring harness between C-316 ETACS-ECU connector terminal No.1 and D-02 lighting control sensor connector terminal No.3. Check the input and output lines for open or short circuit. Q: Is the check result normal? YES : Intermittent malfunction (Refer to «HOW TO COPE WITH INTERMITTENT MALFUNCTION»(ref-289379-S36733983872008063000000) .) NO : Repair the wiring harness.

INSPECTION PROCEDURE 8: The rain sensitive AUTO wiper function works even though there is no rainfall < Vehicles with lighting control sensor >

Scheme 20

1. Malfunction of the lighting control sensor
2. Malfunction of ETACS-ECU
3. Damaged wiring harness and connectors

Required Special Tools

1. MB991223: Harness Set
2. MB992006: Extra Fine Probe
3. MB991958: Scan Tool (M.U.T.-III Sub Assembly) MB991824: V.C.I. MB991827: M.U.T.-III USB Cable MB991910: M.U.T.-III Main Harness A

1. STEP 1. Lighting control sensor installation surface check Visually check the presence of scratches or air bubbles (diameter of 5 mm or more) on the windshield to which the lighting control sensor is installed. Q: Is the check result normal? YES : Go to Step 2. NO : Replace the windshield (Refer to «REMOVAL AND INSTALLATION»(ref-289409-S04185953382008063000000) ).
2. STEP 2. Windshield wiper operation check Check that the windshield wipers work normally. Q: Is the check result normal? YES : Go to Step 3. NO : Refer to «INSPECTION PROCEDURE 3»(ref-289387-S39594327082008063000000) .
3. STEP 3. Use the scan tool MB991958 to check if an ETACS-related diagnostic trouble code is set. Connect the scan tool. Refer to " «HOW TO CONNECT THE SCAN TOOL (M.U.T.-III)»(ref-289392-S04956108712008063000000) ". Q: Is the diagnostic trouble code set? YES : Diagnose the ETACS-ECU. Refer to " «DIAGNOSTIC TROUBLE CODE CHART»(ref-289392-S29242288832008063000000) ". NO : Go to Step 4.
4. STEP 4. Using scan tool MB991958, read the lighting control sensor diagnostic trouble code. Check if a lighting control sensor diagnostic trouble code is set. Connect the scan tool. Refer to " «HOW TO CONNECT THE SCAN TOOL (M.U.T.-III)»(ref-289392-S04956108712008063000000) ". Q: Is the diagnostic trouble code set? YES : Diagnose the lighting control sensor. [Diagnosis Code: (Refer to «DIAGNOSIS CODE CHART»(ref-289392-S41956863062008063000000) ) or service data ( «DATA LIST REFERENCE TABLE»(ref-289387-S41686505942008063000000) ).] NO : Go to Step 5.
5. STEP 5. Connector check: C-316 ETACS-ECU connector Q: Is the check result normal? YES : Go to Step 6. NO : Repair the damaged connector.
6. STEP 6. Measure the voltage at the C-316 ETACS-ECU connector. Disconnect the connector, and measure the voltage at the wiring harness side. Measure the voltage between C-316 ETACS-ECU connector terminal No. 1 and body ground. OK: Battery voltage Q: Is the check result normal? YES : Replace the Lighting control sensor. NO : Go to Step 7.
7. STEP 7. Check the wiring harness between C-316 ETACS-ECU connector terminal No.1 and D-02 lighting control sensor connector terminal No.3. Check the input and output lines for open or short circuit. Q: Is the check result normal? YES : Intermittent malfunction (Refer to «HOW TO COPE WITH INTERMITTENT MALFUNCTION»(ref-289379-S36733983872008063000000) .) NO : Repair the wiring harness.

INSPECTION PROCEDURE 9: Sometimes the rain sensitive AUTO wiper function works even though there is no rainfall < Vehicles with lighting control sensor >

1. Malfunction of the lighting control sensor
2. Lighting control sensor (rain sensor) adaptation failure

Required Special Tools

1. MB991223: Harness Set
2. MB992006: Extra Fine Probe
3. MB991958: Scan Tool (M.U.T.-III Sub Assembly) MB991824: V.C.I. MB991827: M.U.T.-III USB Cable MB991910: M.U.T.-III Main Harness A

1. STEP 1. Lighting control sensor (rain sensor) installation surface check Visually check the presence of scratches or air bubbles (diameter of 5 mm or more) on the windshield to which the lighting control sensor is installed. Q: Is the check result normal? YES : Go to Step 2. NO : Replace the windshield (Refer to «REMOVAL AND INSTALLATION»(ref-289409-S04185953382008063000000) ).
2. STEP 2. Windshield wiper operation check Check that the windshield wipers work normally. Q: Is the check result normal? YES : Go to Step 3. NO : Refer to «INSPECTION PROCEDURE 3»(ref-289387-S39594327082008063000000) .
3. STEP 3. Use the scan tool MB991958 to check if an ETACS-related diagnostic trouble code is set. Connect the scan tool. Refer to " «HOW TO CONNECT THE SCAN TOOL (M.U.T.-III)»(ref-289392-S04956108712008063000000) ". Q: Is the diagnostic trouble code set? YES : Diagnose the ETACS-ECU. Refer to " «DIAGNOSTIC TROUBLE CODE CHART»(ref-289392-S29242288832008063000000) ". NO : Go to Step 4.
4. STEP 4. Using scan tool MB991958, read the lighting control sensor diagnostic trouble code. Check if a lighting control sensor diagnostic trouble code is set. Connect the scan tool. Refer to " «HOW TO CONNECT THE SCAN TOOL (M.U.T.-III)»(ref-289392-S04956108712008063000000) ". Q: Is the diagnostic trouble code set? YES : Diagnose the lighting control sensor. [Diagnosis Code: (Refer to «DIAGNOSIS CODE CHART»(ref-289392-S41956863062008063000000) ) or service data ( «DATA LIST REFERENCE TABLE»(ref-289387-S41686505942008063000000) ).] NO : Go to Step 5.
5. STEP 5. Lighting control sensor (rain sensor) installation surface check Check that the lighting control sensor (rain sensor) is installed to the windshield glass firmly. Q: Is the check result normal? YES : Go to Step 6 after completion of the lighting control sensor (rain sensor) adaptation ( «LIGHTING CONTROL SENSOR»(ref-289387-S18449096672008063000000) ). NO : Install the lighting control sensor (rain sensor) to the windshield glass correctly (Refer to «LIGHTING CONTROL SENSOR REMOVAL AND INSTALLATION»(ref-289392-S41348962382008063000000) ).
6. STEP 6. Retest the system. Check the lighting control sensor (rain sensor) after completion of the lighting control sensor (rain sensor) adaptation Check that the windshield glass surface is dry. Pour the windshield glass surface where the lighting control sensor is installed. Q: Does the windshield wiper operate? Operate one or more : Intermittent malfunction (Refer to «HOW TO COPE WITH INTERMITTENT MALFUNCTION»(ref-289379-S36733983872008063000000) ). Does not operate : Troubleshoot the rain sensitive wiper function (Refer to «INSPECTION PROCEDURE 7»(ref-289387-S23503025812008063000000) ).

Scheme 21

1. The wiring harness or connectors may have loose, corroded, or damaged terminals, or terminals pushed back in the connector
2. The washer motor may be defective
3. The column switch may be defective
4. The ETACS-ECU may be defective

Required Special Tools

1. MB991223: Harness Set
2. MB992006: Extra Fine Probe
3. MB991958: Scan Tool (M.U.T.-III Sub Assembly) MB991824: V.C.I. MB991827: M.U.T.-III USB Cable MB991910: M.U.T.-III Main Harness A

Scheme 22

Scheme 23

1. STEP 1. Verify the windshield wiper operation. Q: Does the windshield wiper operate normally? YES : Go to Step 2. NO : Refer to «INSPECTION PROCEDURE 1 "THE WINDSHIELD WIPERS DO NOT WORK AT ALL»(ref-289387-S14117240872008063000000) ".
2. STEP 2. Use the scan tool MB991958 to check if an ETACS-related diagnostic trouble code is set. Connect the scan tool. Refer to " «HOW TO CONNECT THE SCAN TOOL (M.U.T.-III)»(ref-289392-S04956108712008063000000) ". Q: Is the diagnostic trouble code set? YES : Diagnose the ETACS-ECU. Refer to " «DIAGNOSTIC TROUBLE CODE CHART»(ref-289392-S29242288832008063000000) ". NO : Go to Step 3.
3. STEP 3. Check the input signal related to the windshield washer operation. Ignition switch: ACC Windshield washer switch: ON WINDSHIELD WASHER SWITCH REFERENCE Item No. Display on scan tool Normal condition Item 237 Front washer ON OK: Normal condition is displayed. Q: Is the check result normal? NO : Go to Step 4. YES : Refer to «INPUT SIGNAL CHART»(ref-289392-S35247796472008063000000) .
4. STEP 4. Check windshield washer motor connector D-20 for loose, corroded or damaged terminals, or terminals pushed back in the connector. Q: Is windshield washer motor connector D-20 in good condition? YES : Go to Step 5. NO : Repair or replace the damaged component(s). Refer to «HARNESS CONNECTOR INSPECTION»(ref-289377-S30386868932008063000000) . Verify that the windshield wiper works normally.
5. STEP 5. Check the operation of windshield washer motor. Disconnect windshield washer motor connector D-20 and check at windshield washer motor connector side. Fill the windshield washer tank with washer fluid. When battery voltage is applied between terminals 1 and 2, washer fluid should spray out. Q: Does the washer motor operate normally? YES : Go to Step 6. NO : Replace the washer motor. Verify that the windshield washer works normally.
6. STEP 6. Check ETACS-ECU connector C-304 for loose, corroded or damaged terminals, or terminals pushed back in the connector. Q: Is ETACS-ECU connector C-304 in good condition? YES : Go to Step 7. NO : Repair or replace the damaged component(s). Refer to «HARNESS CONNECTOR INSPECTION»(ref-289377-S30386868932008063000000) . Verify that the windshield washer works normally.
7. STEP 7. Measure the voltage at ETACS-ECU connector C-304. Disconnect ETACS-ECU connector C-304 and measure the resistance available at the wiring harness side of the connector. Ignition switch: ACC windshield washer switch: ON Measure the voltage between C-304 ETACS-ECU connector terminal No. 13 and body ground. OK: Battery voltage Q: Is the measured voltage approximately 12 volts (battery positive voltage)? YES : Go to Step 10 . NO : Go to Step 8.
8. STEP 8. Check the wiring harness between windshield washer motor connector D-20 (terminal 2) and ETACS-ECU connector C-304 (terminal 13). Check the input lines for open or short circuit. Q: Is the wiring harness between windshield washer motor connector D-20 (terminal 2) and ETACS-ECU connector C-304 (terminal 13)in good condition? YES : Go to Step 9. NO : Repair or replace the damaged component(s). Refer to «CABLES AND WIRE CHECK»(ref-289377-S25992573652008063000000) .
9. STEP 9. Check the wiring harness between windshield washer motor connector D-20 (terminal 1) and ETACS-ECU connector C-304 (terminal 14). NOTE: Prior to the wiring harness inspection, check intermediate connector C-47 and repair if necessary. Check the input lines for open or short circuit. Q: Is the wiring harness between windshield washer motor connector D-20 (terminal 1) and ETACS-ECU connector C-304 (terminal 14)in good condition? YES : Go to Step 10. NO : Repair or replace the damaged component(s). Refer to «CABLES AND WIRE CHECK»(ref-289377-S25992573652008063000000) .
10. STEP 10. Retest the system. Check that the windshield washers work normally. Q: Is the check result normal? YES : Intermittent malfunction. Refer to «HOW TO COPE WITH INTERMITTENT MALFUNCTION»(ref-289379-S36733983872008063000000) . NO : Replace the ETACS-ECU.

LIGHTING CONTROL SENSOR (RAIN SENSOR) INSPECTION

Under clear weather (windshield glass is dry), turn the ignition switch to "ON" position and wiper switch to "AUTO" position. Check that the wiper works when applying water to the upper part of the windshield glass where the lighting control sensor is installed. If there is a malfunction, perform the troubleshooting (Refer to WINDSHIELD WIPER AND WASHER DIAGNOSIS ).