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Engine Cooling System - Lancer: Diagnosis Mitsubishi Lancer X рестайлинг

Cooling System (Mechanical) 4 illustrations ~3803 words

TROUBLESHOOTING STRATEGY

Use these steps to plan your diagnostic strategy. If you follow them carefully, you will be sure to find most of the engine cooling faults.

  1. Gather information from the customer.
  2. Verify that the condition described by the customer exists.
  3. Find and repair the malfunction by following the Symptom Chart.
  4. Verify that the malfunction is eliminated.

SYMPTOM CHART

SymptomInspection procedure
Coolant leakINSPECTION PROCEDURE 1: COOLANT LEAK
Engine overheatingINSPECTION PROCEDURE 2: ENGINE OVERHEATING
Radiator fan and condenser fan do not operate < 2.0L ENGINE Non-turbo, 2.4L Engine >INSPECTION PROCEDURE 3: RADIATOR FAN AND CONDENSER FAN DO NOT OPERATE < 2.0L ENGINE NON-TURBO, 2.4L ENGINE >
Radiator fan and condenser fan do not operate < 2.0L ENGINE Turbo >INSPECTION PROCEDURE 4: RADIATOR FAN AND CONDENSER FAN DO NOT OPERATE < 2.0L ENGINE TURBO >

COOLING SYSTEM SYMPTOM CHART

Scheme 3

Scheme 3: DIAGNOSIS
Scheme 3: DIAGNOSIS
  1. STEP 1. Check for coolant leaks. WARNING: When pressure testing the cooling system, slowly release cooling system pressure to avoid getting burned by hot coolant. CAUTION: Be sure to completely clean away any moisture from the places checked. When the tester is removed, be careful not to spill any coolant. When installing and removing the tester and when testing, be careful not to deform the filler neck of the radiator. Check that the coolant level is up to the filler neck. Install a radiator tester and apply 160 kPa (23 psi) pressure, and then check for leakage from the radiator hose or connections. Q: Is leakage present from the radiator hose or connections? YES: Repair or replace the appropriate part, then go to Step 2. NO: There is no action to be taken.
  2. STEP 2. Retest the system. Q: It there still coolant leakage? YES: Return to Step 1 . NO: The procedure is complete.

Scheme 4

Scheme 4: DIAGNOSIS
Scheme 4: DIAGNOSIS
  1. STEP 1. Remove the radiator cap and check for coolant contamination. Q: Is the coolant contaminated with rust and oil? YES: Replace it (Refer to «ENGINE COOLANT CHANGE < 2.0L ENGINE NON-TURBO, 2.4L ENGINE >»(ref-592635-S40347684532014011000000) ) < 2.0L ENGINE Non-turbo, 2.4L ENGINE > or (Refer to «ENGINE COOLANT CHANGE < 2.0L ENGINE TURBO >»(ref-592635-S21153788032014011000000) ) < 2.0L ENGINE Turbo >. NO: There is no action to be taken. Go to Step 2.
  2. STEP 2. Check the radiator cap valve opening pressure. NOTE: Be sure that the cap is clean before testing. Rust or other foreign material on the cap seal will cause an improper reading. Use a cap adapter to attach the cap to the tester. Increase the pressure until the gauge indicator stops moving. Minimum limit: 83 kPa (12 psi) Standard value: 93 - 123 kPa (14 - 18 psi) Q: Does the reading remain at or above the minimum limit? YES: Go to Step 3. NO: Replace the radiator cap. Then go to Step 5 .
  3. STEP 3. Check thermostat operation. Refer to «THERMOSTAT CHECK»(ref-592635-S29687074452014011000000) . Q: Does the thermostat operate correctly? YES: Go to Step 4. NO: Replace the thermostat, then go to Step 5 .
  4. STEP 4. Check the drive belt for slippage or damage. Refer to «DRIVE BELT TENSION CHECK»(ref-592637-S36566777372014011000000) . < 2.0L ENGINE Non-turbo > Refer to «DRIVE BELT TENSION CHECK»(ref-592641-S32852381392014011000000) . < 2.0L ENGINE Turbo > Refer to «DRIVE BELT TENSION CHECK»(ref-592642-S18996876222014011000000) . < 2.4L ENGINE > Q: Is the drive belt loose or damaged? YES: Adjust or replace the drive belt, then go to Step 5. NO: There is no action to be taken.
  5. STEP 5. Retest the system. Check the engine coolant temperature. Q: Is the engine coolant temperature abnormally high? YES: Return to Step 2 . NO: The procedure is complete.

Scheme 5

Scheme 5: Inspection Procedure 3: Radiator Fan And Condenser Fan Do Not Operate - 2.0L ENGINE Non-Turbo, 2.4L
Scheme 5: Inspection Procedure 3: Radiator Fan And Condenser Fan Do Not Operate - 2.0L ENGINE Non-Turbo, 2.4L

TROUBLESHOOTING HINTS

  1. Malfunction of CAN bus system.
  2. Damaged wiring harness or connector.
  3. Malfunction of the MFI system.
  4. Malfunction of CVT system < CVT. >
  5. Malfunction of the A/C system.
  6. Malfunction of ETACS system.
  7. Malfunction of fusible link number 28.
  8. Malfunction of fusible link number 29.
  9. Malfunction of radiator fan relay.
  10. Malfunction of condenser fan relay.
  11. Malfunction of fan control relay.
  12. Malfunction of radiator fan motor.
  13. Malfunction of condenser fan motor.
  14. Malfunction of ETACS-ECU.
  15. Malfunction of ECM.

DIAGNOSIS PROCEDURE

Required Special Tools

  1. 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
  2. MB991223: Harness Set
  3. MB992006: Extra Fine Probe
CAUTIONIf there is any problem in the CAN bus lines, an incorrect diagnostic trouble code (DTC) may be set. Prior to this diagnosis, diagnose the CAN bus lines (Refer to DIAGNOSTIC TROUBLE CODE DIAGNOSIS ).
  1. STEP 1. Using scan tool MB991958, diagnose the CAN bus line. Use scan tool to diagnose the CAN bus line (Refer to «CAN BUS DIAGNOSTICS»(ref-592553-S29310113992014011000000) ). Q: Is the check result satisfactory? YES: Go to Step 2. NO: Repair the CAN bus lines (Refer to «CAN BUS DIAGNOSTICS TABLE»(ref-592553-S01090254822014011000000) ). Then go to Step 23 .
  2. STEP 2. Using scan tool MB991958, check the MFI system actuator test. Using scan tool to check the MFI system actuator test (Refer to «DIAGNOSTIC FUNCTION»(ref-592554-S08381383192014011000000) ) < 2.0L ENGINE Non-turbo > or (Refer to «DIAGNOSTIC FUNCTION»(ref-592556-S33445160532014011000000) ) < 2.4L ENGINE >. Item 14: Cooling fan (Refer to «ACTUATOR TEST REFERENCE TABLE»(ref-592554-S11976651952014011000000) ) < 2.0L ENGINE Non-turbo > or (Refer to «ACTUATOR TEST REFERENCE TABLE»(ref-592554-S11976651952014011000000) ) < 2.4L ENGINE >. Q: Is the check result normal? YES: Go to Step 22 . NO: Go to Step 3.
  3. STEP 3. Using scan tool MB991958, read the MFI system DTC. Using scan tool to read the MFI system DTC (Refer to «DIAGNOSTIC FUNCTION»(ref-592554-S08381383192014011000000) ) < 2.0L ENGINE Non-turbo > or (Refer to «DIAGNOSTIC FUNCTION»(ref-592556-S33445160532014011000000) ) < 2.4L ENGINE >. Q: Is any DTC set? YES: Repair the MFI system (Refer to «DIAGNOSTIC TROUBLE CODE CHART»(ref-592554-S34172480472014011000000) ) < 2.0L ENGINE Non-turbo > or (Refer to «DIAGNOSTIC TROUBLE CODE CHART»(ref-592556-S26682004632014011000000) ) < 2.4L ENGINE >. Then go to Step 23 . NO: Go to Step 5 < M/T. > NO: Go to Step 4 < CVT. >
  4. STEP 4. Using scan tool MB991958, read the CVT system DTC < CVT. > Using scan tool to read the CVT system DTC (Refer to «DIAGNOSTIC FUNCTION»(ref-592573-S28165786302014011000000) ). Q: Is any DTC set? YES: Repair the CVT system (Refer to «DIAGNOSTIC TROUBLE CODE CHART»(ref-592573-S35158955222014011000000) ). Then go to Step 23 . NO: Go to Step 5.
  5. STEP 5. Using scan tool MB991958, read the A/C system DTC. Using scan tool to read the A/C system DTC (Refer to «DIAGNOSTIC FUNCTION»(ref-592562-S03118881232014011000000) ) < 2.0L ENGINE Non-turbo > or (Refer to «DIAGNOSTIC FUNCTION»(ref-592563-S17028081472014011000000) ) < 2.4L ENGINE >. Q: Is any DTC set? YES: Repair the A/C system (Refer to «DIAGNOSTIC TROUBLE CODE CHART»(ref-592562-S20723457832014011000000) ) < 2.0L ENGINE Non-turbo > or (Refer to «DIAGNOSTIC TROUBLE CODE CHART»(ref-592563-S12432691712014011000000) ) < 2.4L ENGINE >. Then go to Step 23 . NO: Go to Step 6.
  6. STEP 6. Using scan tool MB991958, read the ETACS system DTC. Using scan tool to read the ETACS system DTC (Refer to «DIAGNOSTIC FUNCTION»(ref-592558-S24427710142014011000000) ). Q: Is any DTC set? YES: Repair the ETACS system (Refer to «DIAGNOSTIC TROUBLE CODE CHART»(ref-592558-S22710001632014011000000) ). Then go to Step 23 . NO: Go to Step 7.
  7. STEP 7. Measure the terminal voltage at ETACS-ECU connector C-312. Disconnect the ETACS-ECU connector C-312, and measure at front wiring harness connector side. Turn the ignition switch to the "ON" position. Measure the terminal voltage between ETACS-ECU connector C-312 terminal number 2 and body ground, between ETACS-ECU connector C-312 terminal number 8 and body ground. OK: Battery positive voltage Q: Is the check result normal? YES: Go to Step 13 . NO: Go to Step 8.
  8. STEP 8. Check the condenser fan relay connector A-23X, radiator fan relay connector A-26X, fan control relay connector A-28X, and ETACS-ECU connector C-312, for loose, corroded or damaged terminals, or terminals pushed back in the connector. Refer to «HARNESS CONNECTOR INSPECTION»(ref-592557-S11382637462014011000000) . Q: Is the connector and terminal in good condition? YES: Go to Step 9. NO: Repair or replace the damaged connector. Then go to Step 23 .
  9. STEP 9. Check the harness wire between fusible link number 28 and condenser fan relay connector A-23X terminal number 1, between fusible link number 28 and fan control relay connector A-28X terminal number 1, and between fusible link number 29 and radiator fan relay connector A-26X terminal number 3, for damage. Check harness wire for open/short circuit and damage. Q: Is the harness wires in good condition? YES: Go to Step 10. NO: Repair or replace the damaged harness wire. Then go to Step 23 .
  10. STEP 10. Check the harness wire between condenser fan relay connector A-23X terminal number 2 and ETACS-ECU connector C-312 terminal number 8, between radiator fan relay connector A-26X terminal number 1 and ETACS-ECU connector C-312 terminal number 2, and between fan control relay connector A-28X terminal number 3, for damage. Check harness wire for open/short circuit and damage. Q: Is the harness wires in good condition? YES: Go to Step 11. NO: Repair or replace the damaged harness wire. Then go to Step 23 .
  11. STEP 11. Check the radiator fan relay, condenser fan relay, and fan control relay. Refer to «RADIATOR FAN RELAY CHECK»(ref-592635-S28196782982014011000000) . Q: Is the relay in good condition? YES: Go to Step 12. NO: Replace the damaged relay. Then go to Step 23 .
  12. STEP 12. Check the fusible link number 28 and fusible link number 29. Q: Is the fusible link in good condition? YES: Go to Step 20 . NO: Replace the damaged fusible link. Then go to Step 23 .
  13. STEP 13. Check the condenser fan relay connector A-23X, radiator fan relay connector A-26X, fan control relay connector A-28X, radiator fan motor connector A-35, and condenser fan motor connector A-40, for loose, corroded or damaged terminals, or terminals pushed back in the connector. Refer to «HARNESS CONNECTOR INSPECTION»(ref-592557-S11382637462014011000000) . Q: Is the connector and terminal in good condition? YES: Go to Step 14. NO: Repair or replace the damaged connector. Then go to Step 23 .
  14. STEP 14. Check the harness wire between fusible link number 28 and condenser fan relay connector A-23X terminal number 4, and between fusible link number 29 and radiator fan relay connector A-26X terminal number 4, for damage. Check harness wire for open/short circuit and damage. Q: Is the harness wires in good condition? YES: Go to Step 15. NO: Repair or replace the damaged harness wire. Then go to Step 23 .
  15. STEP 15. Check the harness wire between condenser fan relay connector A-23X terminal number 3 and condenser fan motor connector A-40 terminal number 1, and between radiator fan relay connector A-26X terminal number 2 and radiator fan motor connector A-35 terminal number 1, for damage. Check harness wire for open/short circuit and damage. Q: Is the harness wires in good condition? YES: Go to Step 16. NO: Repair or replace the damaged harness wire. Then go to Step 23 .
  16. STEP 16. Check the harness wire between radiator fan motor connector A-35 terminal number 2 and fan control relay connector A-28X terminal number 5, and between condenser fan motor connector A-40 terminal number 2 and body ground, for damage. Check harness wire for open/short circuit and damage. Q: Is the harness wires in good condition? YES: Go to Step 17. NO: Repair or replace the damaged harness wire. Then go to Step 23 .
  17. STEP 17. Check the harness wire between fan control relay connector A-28X terminal number 2 and condenser fan motor connector A-40 terminal number 1, and between fan control relay connector A-28X terminal number 4 and body ground, for damage. Check harness wire for open/short circuit and damage. Q: Is the harness wires in good condition? YES: Go to Step 18. NO: Repair or replace the damaged harness wire. Then go to Step 23 .
  18. STEP 18. Check the radiator fan relay, condenser fan relay, and fan control relay. Refer to «RADIATOR FAN RELAY CHECK»(ref-592635-S28196782982014011000000) . Q: Is the relay in good condition? YES: Go to Step 19. NO: Replace the damaged relay. Then go to Step 23 .
  19. STEP 19. Check the radiator fan motor and condenser fan motor. Refer to «COOLING FAN MOTOR CHECK < 2.0L ENGINE NON-TURBO, 2.4L ENGINE >»(ref-592635-S41908805672014011000000) . Q: Is the fan motor in good condition? YES: Go to Step 20. NO: Replace the damaged fan motor (Refer to «RADIATOR»(ref-592635-S40209669162014011000000) ). Then go to Step 23 .
  20. STEP 20. Using scan tool MB991958, read the ETACS system DTC. Using scan tool to read the ETACS system DTC (Refer to «DIAGNOSTIC FUNCTION»(ref-592558-S24427710142014011000000) ). Q: Is any DTC set? YES: Replace the ETACS-ECU (Refer to «ETACS-ECU»(ref-592558-S35490403722014011000000) ). Then go to Step 23 . NO: Go to Step 21.
  21. STEP 21. Using scan tool MB991958, check the MFI system actuator test. Using scan tool to check the MFI system actuator test (Refer to «DIAGNOSTIC FUNCTION»(ref-592554-S08381383192014011000000) ) < 2.0L ENGINE Non-turbo > or (Refer to «DIAGNOSTIC FUNCTION»(ref-592556-S33445160532014011000000) ) < 2.4L ENGINE. > Item 14: Cooling fan (Refer to «ACTUATOR TEST REFERENCE TABLE»(ref-592554-S11976651952014011000000) ) < 2.0L ENGINE Non-turbo > or (Refer to «ACTUATOR TEST REFERENCE TABLE»(ref-592554-S11976651952014011000000) ) < 2.4L ENGINE. > Q: Is the check result normal? YES: Go to Step 22. NO: Replace the ECM [Refer to «ENGINE CONTROL MODULE (ECM)»(ref-592554-S27535155342014011000000) ] < 2.0L ENGINE Non-turbo > or [Refer to «ENGINE CONTROL MODULE (ECM)»(ref-592556-S17992049392014011000000) ] < 2.4L ENGINE >. When the ECM is replaced, register the encrypted code (Refer to ID registration procedure manual - ID codes registration judgement table). Then go to Step 23 .
  22. STEP 22. Check the symptoms. Q: Does the radiator fan and condenser fan operate normal? YES: An intermittent malfunction is suspected (Refer to «HOW TO COPE WITH INTERMITTENT MALFUNCTIONS»(ref-592551-S36408212772014011000000) ). NO: Replace the ECM [Refer to «ENGINE CONTROL MODULE (ECM)»(ref-592554-S27535155342014011000000) ] < 2.0L ENGINE Non-turbo > or [Refer to «ENGINE CONTROL MODULE (ECM)»(ref-592556-S17992049392014011000000) ] < 2.4L ENGINE >. When the ECM is replaced, register the encrypted code (Refer to ID registration procedure manual - ID codes registration judgement table). Then go to Step 23.
  23. STEP 23. Check the symptoms. Q: Does the radiator fan and condenser fan operate normal? YES: The procedure is complete. NO: Return to Step 1 .

Scheme 6

Scheme 6: Inspection Procedure 4: Radiator Fan And Condenser Fan Do Not Operate - 2.0L ENGINE Turbo
Scheme 6: Inspection Procedure 4: Radiator Fan And Condenser Fan Do Not Operate - 2.0L ENGINE Turbo
  1. Malfunction of CAN bus line.
  2. Damaged wiring harness or connector.
  3. Malfunction of MFI system.
  4. Malfunction of ASC system.
  5. Malfunction of the A/C system.
  6. Malfunction of ETACS system.
  7. Malfunction of fusible link number 28.
  8. Malfunction of fusible link number 29.
  9. Malfunction of radiator fan relay.
  10. Malfunction of condenser fan relay.
  11. Malfunction of fan control relay.
  12. Malfunction of radiator fan motor.
  13. Malfunction of condenser fan motor.
  14. Malfunction of ETACS-ECU.
  15. Malfunction of ECM.

DIAGNOSTIC PROCEDURE

Required Special Tools

  1. 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
  2. MB991223: Harness Set
  3. MB992006: Extra Fine Probe
CAUTIONIf there is any problem in the CAN bus lines, an incorrect diagnostic trouble code (DTC) may be set. Prior to this diagnosis, diagnose the CAN bus lines (Refer to DIAGNOSTIC TROUBLE CODE DIAGNOSIS ).
  1. STEP 1. Using scan tool MB991958, diagnose the CAN bus line. Use scan tool to diagnose the CAN bus line (Refer to «CAN BUS DIAGNOSTICS»(ref-592553-S29310113992014011000000) ). Q: Is the check result satisfactory? YES: Go to Step 2. NO: Repair the CAN bus line (Refer to «CAN BUS DIAGNOSTICS TABLE»(ref-592553-S01090254822014011000000) ). Then go to Step 23 .
  2. STEP 2. Using scan tool MB991958, check the MFI system actuator test. Using scan tool to check the MFI system actuator test (Refer to «DIAGNOSTIC FUNCTION»(ref-592555-S09507504502014011000000) ). Item 14: Cooling fan (Refer to «ACTUATOR TEST REFERENCE TABLE»(ref-592555-S40513663452014011000000) ) Q: Is the check result normal? YES: Go to Step 22 . NO: Go to Step 3.
  3. STEP 3. Using scan tool MB991958, read the MFI system DTC. Using scan tool to read the MFI system DTC (Refer to «DIAGNOSTIC FUNCTION»(ref-592555-S09507504502014011000000) ). Q: Is any DTC set? YES: Repair the MFI system (Refer to «DIAGNOSTIC TROUBLE CODE CHART»(ref-592555-S21340300262014011000000) ). Then go to Step 23 . NO: Go to Step 4.
  4. STEP 4. Using scan tool MB991958, read the ASC system DTC. Using scan tool to read the ASC system DTC (Refer to «DIAGNOSTIC FUNCTION»(ref-592559-S01494059852014011000000) ). Q: Is any DTC set? YES: Repair the ASC system (Refer to «DIAGNOSTIC TROUBLE CODE CHART»(ref-592559-S25956359272014011000000) ). Then go to Step 23 . NO: Go to Step 5.
  5. STEP 5. Using scan tool MB991958, read the A/C system DTC. Using scan tool to read the A/C system DTC (Refer to «DIAGNOSTIC FUNCTION»(ref-592563-S17028081472014011000000) ). Q: Is any DTC set? YES: Repair the A/C system (Refer to «DIAGNOSTIC TROUBLE CODE CHART»(ref-592563-S12432691712014011000000) ). Then go to Step 23 . NO: Go to Step 6.
  6. STEP 6. Using scan tool MB991958, read the ETACS system DTC. Using scan tool to read the ETACS system DTC (Refer to «DIAGNOSTIC FUNCTION»(ref-592558-S24427710142014011000000) ). Q: Is any DTC set? YES: Repair the ETACS system (Refer to «DIAGNOSTIC TROUBLE CODE CHART»(ref-592558-S22710001632014011000000) ). Then go to Step 23 . NO: Go to Step 7.
  7. STEP 7. Measure the terminal voltage at ETACS-ECU connector C-312. Disconnect the ETACS-ECU connector C-312, and measure at front wiring harness connector side. Turn the ignition switch to the "ON" position. Measure the terminal voltage between ETACS-ECU connector C-312 terminal number 2 and body ground, between ETACS-ECU connector C-312 terminal number 8 and body ground. OK: Battery positive voltage Q: Is the check result normal? YES: Go to Step 13 . NO: Go to Step 8.
  8. STEP 8. Check the radiator fan relay connector A-57X, condenser fan relay connector A-58X, fan control relay connector A-59X, and ETACS-ECU connector C-312, for loose, corroded or damaged terminals, or terminals pushed back in the connector. Refer to «HARNESS CONNECTOR INSPECTION»(ref-592557-S11382637462014011000000) . Q: Is the connectors and terminals in good condition? YES: Go to Step 9. NO: Repair or replace the damaged connector. Then go to Step 23 .
  9. STEP 9. Check the harness wire between fusible link number 28 and condenser fan relay connector A-58X terminal number 3, between fusible link number 28 and condenser fan relay connector A-58X terminal number 4, between condenser fan relay connector A-58X terminal number 4 and fan control relay connector A-59X terminal number 1, and between fusible link number 29 and radiator fan relay connector A-57X terminal number 3, for damage. Check harness wire for open/short circuit and damage. Q: Is the harness wires in good condition? YES: Go to Step 10. NO: Repair or replace the damaged harness wire. Then go to Step 23 .
  10. STEP 10. Check the harness wire between radiator fan relay connector A-57X terminal number 1 and ETACS-ECU connector C-312 terminal number 2, between condenser fan relay connector A-58X terminal number 1 and ETACS-ECU connector C-312 terminal number 8, and between fan control relay connector A-59X terminal number 3, for damage. Check harness wire for open/short circuit and damage. Q: Is the harness wires in good condition? YES: Go to Step 11. NO: Repair or replace the damaged harness wire. Then go to Step 23 .
  11. STEP 11. Check the radiator fan relay, condenser fan relay, and fan control relay. Refer to «RADIATOR FAN RELAY CHECK»(ref-592635-S04903151622014011000000) . Q: Is the relay in good condition? YES: Go to Step 12. NO: Replace the damaged relay. Then go to Step 23 .
  12. STEP 12. Check the fusible link number 28 and fusible link number 29. Q: Is the fusible link in good condition? YES: Go to Step 20 . NO: Replace the damaged fusible link. Then go to Step 23 .
  13. STEP 13. Check the radiator fan relay connector A-57X, condenser fan relay connector A-58X, fan control relay connector A-59X, radiator fan motor connector A-35, and condenser fan motor connector A-40, for loose, corroded or damaged terminals, or terminals pushed back in the connector. Refer to «HARNESS CONNECTOR INSPECTION»(ref-592557-S11382637462014011000000) . Q: Is the connectors and terminals in good condition? YES: Go to Step 14. NO: Repair or replace the damaged connector. Then go to Step 23 .
  14. STEP 14. Check the harness wire between fusible link number 28 and condenser fan relay connector A-58X terminal number 4, and between fusible link number 29 and radiator fan relay connector A-57X terminal number 4, for damage. Check harness wire for open/short circuit and damage. Q: Is the harness wires in good condition? YES: Go to Step 15. NO: Repair or replace the damaged harness wire. Then go to Step 23 .
  15. STEP 15. Check the harness wire between radiator fan relay connector A-57X terminal number 2 and radiator fan motor connector A-35 terminal number 1, and between condenser fan relay connector A-58X terminal number 2 and condenser fan motor connector A-40 terminal number 1, for damage. Check harness wire for open/short circuit and damage. Q: Is the harness wires in good condition? YES: Go to Step 16. NO: Repair or replace the damaged harness wire. Then go to Step 23 .
  16. STEP 16. Check the harness wire between radiator fan motor connector A-35 terminal number 2 and fan control relay connector A-59X terminal number 2, and between condenser fan motor connector A-40 terminal number 2 and body ground, for damage. Check harness wire for open/short circuit and damage. Q: Is the harness wires in good condition? YES: Go to Step 17. NO: Repair or replace the damaged harness wire. Then go to Step 23 .
  17. STEP 17. Check the harness wire between fan control relay connector A-59X terminal number 4 and condenser fan motor connector A-40 terminal number 1, and between fan control relay connector A-59X terminal number 5 and body ground, for damage. Check harness wire for open/short circuit and damage. Q: Is the harness wires in good condition? YES: Go to Step 18. NO: Repair or replace the damaged harness wire. Then go to Step 23 .
  18. STEP 18. Check the radiator fan relay, condenser fan relay, and fan control relay. Refer to «RADIATOR FAN RELAY CHECK»(ref-592635-S04903151622014011000000) . Q: Is the relay in good condition? YES: Go to Step 19. NO: Replace the damaged relay. Then go to Step 23 .
  19. STEP 19. Check the radiator fan motor and condenser fan motor. Refer to «COOLING FAN MOTOR CHECK < 2.0L ENGINE TURBO >»(ref-592635-S19496757572014011000000) . Q: Is the fan motor in good condition? YES: Go to Step 20. NO: Replace the damaged fan motor (Refer to «<< B >> FAN, FAN MOTOR AND COOLING FAN SHROUD ASSEMBLY REMOVAL»(ref-592635-S33992760362014011000000) ). Then go to Step 23 .
  20. STEP 20. Using scan tool MB991958, read the ETACS system DTC. Using scan tool to read the ETACS system DTC (Refer to «DIAGNOSTIC FUNCTION»(ref-592558-S24427710142014011000000) ). Q: Is any DTC set? YES: Replace the ETACS-ECU (Refer to «ETACS-ECU»(ref-592558-S35490403722014011000000) ). Then go to Step 23 . NO: Go to Step 21.
  21. STEP 21. Using scan tool MB991958, check the MFI system actuator test. Using scan tool to check the MFI system actuator test (Refer to «DIAGNOSTIC FUNCTION»(ref-592555-S09507504502014011000000) ). Item 14: Cooling fan (Refer to «ACTUATOR TEST REFERENCE TABLE»(ref-592555-S40513663452014011000000) ) Q: Is the check result normal? YES: Go to Step 22. NO: Replace the ECM [Refer to «ENGINE CONTROL MODULE (ECM)»(ref-592555-S14464410812014011000000) ]. When the ECM is replaced, register the encrypted code (Refer to ID registration procedure manual - ID codes registration judgement table). Then go to Step 23 .
  22. STEP 22. Check the symptoms. Q: Does the radiator fan and condenser fan operate normal? YES: An intermittent malfunction is suspected (Refer to «HOW TO COPE WITH INTERMITTENT MALFUNCTIONS»(ref-592551-S36408212772014011000000) ). NO: Replace the ECM [Refer to «ENGINE CONTROL MODULE (ECM)»(ref-592555-S14464410812014011000000) ]. When the ECM is replaced, register the encrypted code (Refer to ID registration procedure manual - ID codes registration judgement table). Then go to Step 23.
  23. STEP 23. Check the symptoms. Q: Does the radiator fan and condenser fan operate normal? YES: The procedure is complete. NO: Return to Step 1 .

ENGINE COOLANT CONCENTRATION TEST

Refer to RECOMMENDED LUBRICANTS AND LUBRICANT CAPACITIES TABLE .

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