TECHNICAL DESCRIPTION — Part 2 Mitsubishi Lancer Evolution IX

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1. STEP 1. Check that the blower motor operates when the blower switch is moved to the "HI" position. Turn the ignition switch to the "ON" position. Turn the blower switch to the "HI" position. Q: Does the blower motor operate when the blower switch is moved to the "HI" position? YES: Go to STEP 4 . NO: Go to STEP 2.
2. STEP 2. Check blower switch connector C-125 and blower motor connector C-08 for loose, corroded or damaged terminals, or terminals pushed back in the connector. Q: Are blower switch connector C-125 and blower motor connector C-08 in good condition? YES: Go to Step 3. NO: Repair or replace the connector. Refer to «HARNESS CONNECTOR INSPECTION»(/mitsubishi/lancer-evolution/ix-2005-2007/remont/body-electrical/#general-electrical-lancer-evolution) .The blower motor should operate normally.
3. STEP 3. Check the wiring harness between blower switch connector C-125 (terminal 6) and blower motor connector C-08 (terminal 1). Q: Is the wiring harness between blower switch connector C-125 (terminal 6) and blower motor connector C-08 (terminal 1) in good condition? YES: The blower motor should operate normally. NO: Repair the wiring harness. The blower motor should operate normally.
4. STEP 4. Check the resistor resistance value. Use an ohmmeter to measure the resistance between the terminals as indicated below. Check that the measured value is at the standard value. Standard value: MEASUREMENT STANDARD VALUE CHART MEASUREMENT TERMINAL STANDARD VALUEohms Between terminals 2 and 4 (LO) 2.54 Between terminals 1 and 2 (ML) 1.24 Between terminals 3 and 2 (MH) 0.6 Q: Is the measured value at the standard value? YES: Go to Step 5. NO: Replace the resistor. The blower motor should operate normally.
5. STEP 5. Check the blower switch continuity. Follow the table below to check the blower switch for continuity. TESTER CONNECTION SPECIFIED CONDITION CHART SWITCH POSITION TESTER CONNECTION (CONNECTOR A) SPECIFIED CONDITION 0 (OFF) 1 - 2, 2 - 4, 2 - 5, 2 - 6 Open circuit 1 (LO) 1 - 2 Less than 2 ohms 2 (ML) 2 - 4 Less than 2 ohms 3 (MH) 2 - 5 Less than 2 ohms 4 (HI) 2 - 6 Less than 2 ohms Q: Is the blower switch continuity in good condition? YES: Go to Step 6. NO: Replace the blower switch. The blower motor should operate normally.
6. STEP 6. Check blower switch connector C-125 and resistor connector C-09 for loose, corroded or damaged terminals, or terminals pushed back in the connector. Q: Are blower switch connector C-125 and resistor connector C-09 in good condition? YES: Go to Step 7. NO: Repair or replace the connector. Refer to «HARNESS CONNECTOR INSPECTION»(/mitsubishi/lancer-evolution/ix-2005-2007/remont/body-electrical/#general-electrical-lancer-evolution) .The blower motor should operate normally.
7. STEP 7. Check the wiring harness between blower switch connector C-125 (terminals 1, 4 and 5) and resistor connector C-09 (terminals 4, 1 and 3). Q: Is the wiring harness between blower switch connector C-125 (terminals 1, 4 and 5) and resistor connector C-09 (terminals 4, 1 and 3) in good condition? YES: Go to Step 8. NO: Repair the wiring harness. The blower motor should operate normally.
8. STEP 8. Check resistor connector C-09 and blower motor connector C-08 for loose, corroded or damaged terminals, or terminals pushed back in the connector. Q: Are resistor connector C-09 and blower motor connector C-08 in good condition? YES: Go to Step 9. NO: Repair or replace the connector. Refer to «HARNESS CONNECTOR INSPECTION»(/mitsubishi/lancer-evolution/ix-2005-2007/remont/body-electrical/#general-electrical-lancer-evolution) . The blower motor should operate normally.
9. STEP 9. Check the wiring harness between blower motor connector C-08 (terminal 1) and resistor connector C-09 (terminal 2). Q: Is the wiring harness between blower motor connector C-08 (terminal 1) and resistor connector C-09 (terminal 2) in good condition? YES: It can be assumed that this malfunction is intermittent. Refer to «HOW TO COPE WITH INTERMITTENT MALFUNCTIONS»(/mitsubishi/lancer-evolution/ix-2005-2007/remont/hoistjack/#general-lancer-evolution__how-to-cope-with-intermittent-malfunctions) . NO: Repair the wiring harness. The blower motor should operate normally.

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If the rear window defogger does not operate when the rear window defogger switch is turned on, the rear window defogger relay system may be defective.

1. Malfunction of the heater control
2. Malfunction of the rear window defogger relay
3. The wiring harness or connectors may have loose, corroded, or damaged terminals, or terminals pushed back in the connector.

Required Special Tools

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

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1. STEP 1. Check the A/C and outside/inside air selection damper control motor operation. Q: Do the A/C and outside/inside air selection damper control motor work normally? YES: Go to Step 2. NO: Refer to «INSPECTION PROCEDURE 9 "MALFUNCTION OF THE HEATER CONTROL POWER SUPPLY SYSTEM"»(/mitsubishi/lancer-evolution/ix-2005-2007/remont/heater/#heater-air-conditioning-and-ventilation-lancer-evolution) .
2. STEP 2. Measure the voltage at rear window defogger connector F-16. Disconnect rear window defogger connector F-16, and measure the voltage at the junction block side. Turn the ignition switch to the "ON" position. Turn the rear window defogger switch to the "ON" position. Measure the voltage between terminal 1 and ground. The measured value should be approximately 12 volts (battery positive voltage). Q: Is the measured voltage approximately 12 volts? YES: Go to Step 14 . NO: Go to Step 3.
3. STEP 3. Check the rear window defogger relay continuity. Follow the table below to check the rear window defogger relay for continuity. TESTER CONNECTION SPECIFIED CONDITION CHART BATTERY VOLTAGE TESTER CONNECTION SPECIFIED CONDITION Not applied 4 - 5 Open circuit Connect terminal 1 to the positive battery terminal Connect terminal 3 to the negative battery terminal 4 - 5 Less than 2 ohms Q: Is the rear window defogger relay in good condition? YES: Go to Step 4. NO: Replace the rear window defogger relay. The rear window defogger system should work normally.
4. STEP 4. Measure the voltage at rear window defogger relay connector C-215. Disconnect rear window defogger relay connector C-215, and measure the voltage at the junction block side. Measure the voltage between terminal 5 and ground. The measured value should be approximately 12 volts (battery positive voltage). Q: Is the measured voltage approximately 12 volts? YES: Go to Step 7 . NO: Go to Step 5.
5. STEP 5. Check rear window defogger relay connector C-215 for loose, corroded or damaged terminals, or terminals pushed back in the connector. Q: Is rear window defogger relay connector C-215 in good condition? YES: Go to Step 6. NO: Repair or replace the connector. Refer to «HARNESS CONNECTOR INSPECTION»(/mitsubishi/lancer-evolution/ix-2005-2007/remont/body-electrical/#general-electrical-lancer-evolution) . The rear window defogger system should work normally.
6. STEP 6. Check the wiring harness between rear window defogger relay connector C-215 (terminal 5) and the battery. NOTE: Also check junction block connector C-212 and intermediate connector C-126 for loose, corroded, or damaged terminals, or terminals pushed back in the connector. If junction block connector C-212 and intermediate connector C-126 is damaged, repair or replace the connector as described in «HARNESS CONNECTOR INSPECTION»(/mitsubishi/lancer-evolution/ix-2005-2007/remont/body-electrical/#general-electrical-lancer-evolution) . Q: Is the wiring harness between rear window defogger relay connector C-215 (terminal 5) and the battery in good condition? YES: It can be assumed that this malfunction is intermittent. Refer to «HOW TO COPE WITH INTERMITTENT MALFUNCTIONS»(/mitsubishi/lancer-evolution/ix-2005-2007/remont/hoistjack/#general-lancer-evolution__how-to-cope-with-intermittent-malfunctions) . NO: Repair the wiring harness. Check that the rear window defogger system works normally.
7. STEP 7. Measure the voltage at rear window defogger relay connector C-215. Disconnect rear window defogger relay connector C-215, and measure the voltage at the junction block side. Turn the ignition switch to the "ON" position. Measure the voltage between terminal 1 and ground. The measured value should be approximately 12 volts (battery positive voltage). Q: Is the measured voltage approximately 12 volts? YES: Go to Step 10 . NO: Go to Step 8.
8. STEP 8. Check rear window defogger relay connector C-215 for loose, corroded or damaged terminals, or terminals pushed back in the connector. Q: Is rear window defogger relay connector C-215 in good condition? YES: Go to Step 9. NO: Repair or replace the connector. Refer to «HARNESS CONNECTOR INSPECTION»(/mitsubishi/lancer-evolution/ix-2005-2007/remont/body-electrical/#general-electrical-lancer-evolution) . Check that the rear window defogger system works normally.
9. STEP 9. Check the wiring harness between rear window defogger relay connector C-215 (terminal 1) and ignition switch (IG2). NOTE: Also check junction block connector C-211 for loose, corroded, or damaged terminals, or terminals pushed back in the connector. If junction block connector C-211 is damaged, repair or replace the connector as described in «HARNESS CONNECTOR INSPECTION»(/mitsubishi/lancer-evolution/ix-2005-2007/remont/body-electrical/#general-electrical-lancer-evolution) . Q: Is the wiring harness between rear window defogger relay connector C-215 (terminal 1) and ignition switch (IG2) in good condition? YES: It can be assumed that this malfunction is intermittent. Refer to «HOW TO COPE WITH INTERMITTENT MALFUNCTIONS»(/mitsubishi/lancer-evolution/ix-2005-2007/remont/hoistjack/#general-lancer-evolution__how-to-cope-with-intermittent-malfunctions) . NO: Repair the wiring harness. Check that the rear window defogger system works normally.
10. STEP 10. Check rear window defogger relay connector C-215 and rear window defogger connector F-16 for loose, corroded or damaged terminals, or terminals pushed back in the connector. Q: Are rear window defogger relay connector C-215 and rear window defogger connector F-16 in good condition? YES: Go to Step 11. NO: Repair or replace the connector. Refer to «HARNESS CONNECTOR INSPECTION»(/mitsubishi/lancer-evolution/ix-2005-2007/remont/body-electrical/#general-electrical-lancer-evolution) . Check that the rear window defogger system works normally.
11. STEP 11. Check the wiring harness between rear window defogger relay connector C-215 (terminal 4) and rear window defogger connector F-16 (terminal 1). NOTE: Also check junction block connector C-217 for loose, corroded, or damaged terminals, or terminals pushed back in the connector. If junction block connector C-217 is damaged, repair or replace the connector as described in «HARNESS CONNECTOR INSPECTION»(/mitsubishi/lancer-evolution/ix-2005-2007/remont/body-electrical/#general-electrical-lancer-evolution) . Q: Is the wiring harness between rear window defogger relay connector C-215 (terminal 4) and rear window defogger connector F-16 (terminal 1) in good condition? YES: Go to Step 12. NO: Repair or replace the wiring harness. Refer to «HARNESS CONNECTOR INSPECTION»(/mitsubishi/lancer-evolution/ix-2005-2007/remont/body-electrical/#general-electrical-lancer-evolution) . Check that the rear window defogger system works normally.
12. STEP 12. Check rear window defogger relay connector C-215 and heater control connector C-16 for loose, corroded or damaged terminals, or terminals pushed back in the connector. Q: Are rear window defogger relay connector C-215 and heater control connector C-16 in good condition? YES: Go to Step 13. NO: Repair or replace the connector. Refer to «HARNESS CONNECTOR INSPECTION»(/mitsubishi/lancer-evolution/ix-2005-2007/remont/body-electrical/#general-electrical-lancer-evolution) . Check that the rear window defogger system works normally.
13. STEP 13. Check the wiring harness between rear window defogger relay connector C-215 (terminal 3) and heater control connector C-16 (terminal 1). NOTE: Also check junction block connector C-214 for loose, corroded, or damaged terminals, or terminals pushed back in the connector. If junction block connector C-214 is damaged, repair or replace the connector as described in «HARNESS CONNECTOR INSPECTION»(/mitsubishi/lancer-evolution/ix-2005-2007/remont/body-electrical/#general-electrical-lancer-evolution) . Q: Is the wiring harness between rear window defogger relay connector C-215 (terminal 3) and heater control connector C-16 (terminal 1) in good condition? YES: Replace the heater control. The rear window defogger should operate normally. NO: Repair or replace the wiring harness. Refer to «HARNESS CONNECTOR INSPECTION»(/mitsubishi/lancer-evolution/ix-2005-2007/remont/body-electrical/#general-electrical-lancer-evolution) . Check that the rear window defogger system works normally.
14. STEP 14. Measure at rear window defogger connector F-06 in order to check the ground circuit to the rear window defogger connector. Disconnect rear window defogger connector F-06, and measure at the wiring harness side. Measure the resistance value between terminal 1 and ground. The measured value should be 2 ohms or less. Q: Does the measured resistance value correspond with this range? YES: Go to Step 17 . NO: Go to Step 15.
15. STEP 15. Check rear window defogger connector F-06 for loose, corroded or damaged terminals, or terminals pushed back in the connector. Q: Is rear window defogger connector F-06 in good condition? YES: Go to Step 16. NO: Repair or replace the connector. Refer to «HARNESS CONNECTOR INSPECTION»(/mitsubishi/lancer-evolution/ix-2005-2007/remont/body-electrical/#general-electrical-lancer-evolution) . Check that the rear window defogger system works normally.
16. STEP 16. Check the wiring harness between rear window defogger connector F-06 (terminal 1) and ground. Q: Is the wiring harness between rear window defogger connector F-06 (terminal 1) and ground in good condition? YES: It can be assumed that this malfunction is intermittent. Refer to «HOW TO COPE WITH INTERMITTENT MALFUNCTIONS»(/mitsubishi/lancer-evolution/ix-2005-2007/remont/hoistjack/#general-lancer-evolution__how-to-cope-with-intermittent-malfunctions) . NO: Repair or replace the wiring harness. Refer to «HARNESS CONNECTOR INSPECTION»(/mitsubishi/lancer-evolution/ix-2005-2007/remont/body-electrical/#general-electrical-lancer-evolution) . Check that the rear window defogger system works normally.
17. STEP 17. Check the rear window defogger. Let the engine run at 2,000 r/min, and check the printed heater with the battery fully charged. Turn on the rear window defogger switch, and use a voltmeter to measure the voltage in each printed heater at middle point A on the rear window glass. The value should be approximately 6 volts. Q: Does the rear window defogger work normally? YES: Check that the rear window defogger system works normally. NO: Repeat from Step 1 .

Turn ON the rear window defogger switch. If the rear window defogger does not shut off after roughly 11 minutes, then the rear window defogger timer is malfunctioning.

1. Malfunction of the heater control

Replace the A/C-ECU.

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The heater control power system may be defective if the A/C, rear window defogger, and outside/inside air selection damper motor all do not operate normally.

1. Malfunction of the heater control
2. The wiring harness or connectors may have loose, corroded, or damaged terminals, or terminals pushed back in the connector

Required Special Tools

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

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1. STEP 1. Measure the voltage at heater control connector C-16. Disconnect heater control connector C-16 and measure the voltage at the harness side. Turn the ignition switch to the "ON" position. Measure the voltage between terminal 10 and ground. The measured value should be approximately 12 volts (battery positive voltage). Q: Is the measured voltage approximately 12 volts? YES: Go to Step 4 . NO: Go to Step 2.
2. STEP 2. Check heater control connector C-16 for loose, corroded or damaged terminals, or terminals pushed back in the connector. Q: Is heater control connector C-16 in good condition? YES: Go to Step 3. NO: Repair or replace the connector. Refer to «HARNESS CONNECTOR INSPECTION»(/mitsubishi/lancer-evolution/ix-2005-2007/remont/body-electrical/#general-electrical-lancer-evolution) . Check that the A/C works normally.
3. STEP 3. Check the wiring harness between heater control connector C-16 (terminal 10) and the ignition switch (IG2). NOTE: Also check junction block connectors C-214 and C-211 for loose, corroded, or damaged terminals, or terminals pushed back in the connector. If junction block connectors C-214 and C-211 is damaged, repair or replace the connector as described in «HARNESS CONNECTOR INSPECTION»(/mitsubishi/lancer-evolution/ix-2005-2007/remont/body-electrical/#general-electrical-lancer-evolution) . Q: Is the wiring harness between heater control connector C-16 (terminal 10) and the ignition switch (IG2) in good condition? YES: It can be assumed that this malfunction is intermittent. Refer to «HOW TO COPE WITH INTERMITTENT MALFUNCTIONS»(/mitsubishi/lancer-evolution/ix-2005-2007/remont/hoistjack/#general-lancer-evolution__how-to-cope-with-intermittent-malfunctions) . NO: Repair the wiring harness. Check that the A/C works normally.
4. STEP 4. Measure the resistance at heater control connector C-16. Disconnect heater control connector C-16, and measure at the wiring harness side. Measure the resistance between terminal 12 and ground. The measured value should be 2 ohms or less. Q: Does the measured resistance value correspond with this range? YES: Replace the heater control, and check that the A/C works normally. NO: Go to Step 5.
5. STEP 5. Check heater control connector C-16 for loose, corroded or damaged terminals, or terminals pushed back in the connector. Q: Is heater control connector in good condition? YES: Go to Step 6. NO: Repair or replace the connector. Refer to «HARNESS CONNECTOR INSPECTION»(/mitsubishi/lancer-evolution/ix-2005-2007/remont/body-electrical/#general-electrical-lancer-evolution) . Check that the A/C works normally.
6. STEP 6. Check the wiring harness between heater control connector C-16 (terminal 12) and the ground. NOTE: Also check joint connector (3) connectors C-06 for loose, corroded, or damaged terminals, or terminals pushed back in the connector. If joint connector (3) connectors C-06 is damaged, repair or replace the connector as described in «HARNESS CONNECTOR INSPECTION»(/mitsubishi/lancer-evolution/ix-2005-2007/remont/body-electrical/#general-electrical-lancer-evolution) . Q: Is the wiring harness between heater control connector C-16 (terminal 12) and the ground in good condition? YES: It can be assumed that this malfunction is intermittent. Refer to «HOW TO COPE WITH INTERMITTENT MALFUNCTIONS»(/mitsubishi/lancer-evolution/ix-2005-2007/remont/hoistjack/#general-lancer-evolution__how-to-cope-with-intermittent-malfunctions) . NO: Repair the wiring harness. Check that the A/C works normally.

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If the condenser fan does not operate, the condenser fan relay circuit system or the condenser fan motor may be defective.

1. Malfunction of the heater control
2. The wiring harness or connectors may have loose, corroded, or damaged terminals, or terminals pushed back in the connector

Required Special Tools

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

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1. STEP 1. Measure the voltage at condenser fan motor connector A-34. Disconnect condenser fan motor connector A-34 and measure the voltage at the harness side. Disconnect engine-ECU connector C-121, and earth terminal 30. Turn the ignition switch to the "ON" position. Measure the voltage between terminal 1 and ground. The measured value should be approximately 12 volts (battery positive voltage). Q: Is the measured voltage approximately 12 volts? YES: Go to Step 12 . NO: Go to Step 2.
2. STEP 2. Measure the voltage at condenser fan control relay (high) connector A-07X. Disconnect condenser fan control relay (high) connector A-07X, and measure the voltage at the junction block side. Turn the ignition switch to the "ON" position. Measure the voltage between terminal 2 and ground. The measured value should be approximately 12 volts (battery positive voltage). Q: Is the measured voltage approximately 12 volts? YES: Go to Step 5 . NO: Go to Step 3.
3. STEP 3. Check condenser fan control relay (high) connector A-07X for loose, corroded or damaged terminals, or terminals pushed back in the connector. Q: Is condenser fan control relay (high) connector A-07X in good condition? YES: Go to Step 4. NO: Repair or replace the connector. Refer to «HARNESS CONNECTOR INSPECTION»(/mitsubishi/lancer-evolution/ix-2005-2007/remont/body-electrical/#general-electrical-lancer-evolution) .Check that the A/C works normally.
4. STEP 4. Check the wiring harness between condenser fan control relay (high) connector A-07X (terminal 2) and the ignition switch (IG2). NOTE: Also check junction block connectors C-211, C-210, intermediate connector C-129 and joint connector C-101 for loose, corroded, or damaged terminals, or terminals pushed back in the connector. If junction block connectors C-211, C-210, intermediate connector C-129 or joint connector C-101 is damaged, repair or replace the connector as described in «HARNESS CONNECTOR INSPECTION»(/mitsubishi/lancer-evolution/ix-2005-2007/remont/body-electrical/#general-electrical-lancer-evolution) . Q: Is the wiring harness between condenser fan control relay (high) connector A-07X (terminal 2) and the ignition switch (IG2) in good condition? YES: It can be assumed that this malfunction is intermittent. Refer to «HOW TO COPE WITH INTERMITTENT MALFUNCTIONS»(/mitsubishi/lancer-evolution/ix-2005-2007/remont/hoistjack/#general-lancer-evolution__how-to-cope-with-intermittent-malfunctions) . NO: Repair the wiring harness. Check that the A/C works normally.
5. STEP 5. Measure the voltage at condenser fan control relay (high) connector A-07X. Disconnect condenser fan control relay (high) connector A-07X, and measure the voltage at the junction block side. Measure the voltage between terminal 4 and ground. The measured value should be approximately 12 volts (battery positive voltage). Q: Is the measured voltage approximately 12 volts? YES: Go to Step 8 . NO: Go to Step 6.
6. STEP 6. Check condenser fan control relay (high) connector A-07X for loose, corroded or damaged terminals, or terminals pushed back in the connector. Q: Is condenser fan control relay (high) connector A-07X in good condition? YES: Go to Step 7. NO: Repair or replace the connector. Refer to «HARNESS CONNECTOR INSPECTION»(/mitsubishi/lancer-evolution/ix-2005-2007/remont/body-electrical/#general-electrical-lancer-evolution) .Check that the A/C works normally.
7. STEP 7. Check the wiring harness between condenser fan control relay (high) connector A-07X (terminal 4) and the battery. Q: Is the wiring harness between condenser fan control relay (high) connector A-07X (terminal 4) and the battery in good condition? YES: It can be assumed that this malfunction is intermittent. Refer to «HOW TO COPE WITH INTERMITTENT MALFUNCTIONS»(/mitsubishi/lancer-evolution/ix-2005-2007/remont/hoistjack/#general-lancer-evolution__how-to-cope-with-intermittent-malfunctions) . NO: Repair the wiring harness. Check that the A/C works normally.
8. STEP 8. Check condenser fan control relay (high) connector A-07X and condenser fan motor connector A-34 for loose, corroded or damaged terminals, or terminals pushed back in the connector. Q: Is condenser fan control relay (high) connector A-07X and condenser fan motor connector A-34 in good condition? YES: Go to Step 9. NO: Repair or replace the connector. Refer to «HARNESS CONNECTOR INSPECTION»(/mitsubishi/lancer-evolution/ix-2005-2007/remont/body-electrical/#general-electrical-lancer-evolution) .Check that the A/C works normally.
9. STEP 9. Check the wiring harness between condenser fan control relay (high) connector A-07X (terminal 1) and condenser fan motor connector A-34 (terminal 1). Q: Is the wiring harness between condenser fan control relay (high) connector A-07X (terminal 1) and condenser fan motor A-34 connector (terminal 1) in good condition? YES: Go to Step 10. NO: Repair the wiring harness. Check that the A/C works normally.
10. STEP 10. Check condenser fan control relay (high) connector A-07X and engine control module connector C-121 for loose, corroded or damaged terminals, or terminals pushed back in the connector. Q: Is condenser fan control relay (high) connector A-07X and engine control module connector C-121 in good condition? YES: Go to Step 11. NO: Repair or replace the connector. Refer to «HARNESS CONNECTOR INSPECTION»(/mitsubishi/lancer-evolution/ix-2005-2007/remont/body-electrical/#general-electrical-lancer-evolution) .Check that the A/C works normally.
11. STEP 11. Check the wiring harness between condenser fan control relay (high) connector A-07X (terminal 3) and engine control module connector C-121 (terminal 30). NOTE: Also check intermediate connector A-29 for loose, corroded, or damaged terminals, or terminals pushed back in the connector. If intermediate connector A-29 is damaged, repair or replace the connector as described in «HARNESS CONNECTOR INSPECTION»(/mitsubishi/lancer-evolution/ix-2005-2007/remont/body-electrical/#general-electrical-lancer-evolution) . Q: Is the wiring harness between condenser fan control relay (high) connector A-07X (terminal 3) and engine control module connector C-121 (terminal 30) in good condition? YES: It can be assumed that this malfunction is intermittent. Refer to «HOW TO COPE WITH INTERMITTENT MALFUNCTIONS»(/mitsubishi/lancer-evolution/ix-2005-2007/remont/hoistjack/#general-lancer-evolution__how-to-cope-with-intermittent-malfunctions) . NO: Repair the wiring harness. Check that the A/C works normally.
12. STEP 12. Measure the voltage at condenser fan motor connector A-34. Disconnect condenser fan motor connector A-34 and measure the voltage at the harness side. Disconnect engine-ECU connector C-121, and earth terminal 31. Turn the ignition switch to the "ON" position. Measure the voltage between terminal 2 and ground. The measured value should be approximately 12 volts (battery positive voltage). Q: Is the measured voltage approximately 12 volts? YES: Go to Step 23 . NO: Go to Step 13.
13. STEP 13. Measure the voltage at condenser fan control relay (low) connector A-06X. Disconnect condenser fan control relay (low) connector A-06X, and measure the voltage at the junction block side. Turn the ignition switch to the "ON" position. Measure the voltage between terminal 2 and ground. The measured value should be approximately 12 volts (battery positive voltage). Q: Is the measured voltage approximately 12 volts? YES: Go to Step 16 . NO: Go to Step 14.
14. STEP 14. Check condenser fan control relay (low) connector A-06X for loose, corroded or damaged terminals, or terminals pushed back in the connector. Q: Is condenser fan control relay (low) connector A-06X in good condition? YES: Go to Step 15. NO: Repair or replace the connector. Refer to «HARNESS CONNECTOR INSPECTION»(/mitsubishi/lancer-evolution/ix-2005-2007/remont/body-electrical/#general-electrical-lancer-evolution) .Check that the A/C works normally.
15. STEP 15. Check the wiring harness between condenser fan control relay (low) connector A-06X (terminal 2) and the ignition switch (IG2). NOTE: Also check junction block connectors C-211, C-210, intermediate connector C-129 and joint connector C-101 for loose, corroded, or damaged terminals, or terminals pushed back in the connector. If junction block connectors C-211, C-210, intermediate connector C-129 or joint connector C-101 is damaged, repair or replace the connector as described in «HARNESS CONNECTOR INSPECTION»(/mitsubishi/lancer-evolution/ix-2005-2007/remont/body-electrical/#general-electrical-lancer-evolution) . Q: Is the wiring harness between condenser fan control relay (low) connector A-06X (terminal 2) and the ignition switch (IG2) in good condition? YES: It can be assumed that this malfunction is intermittent. Refer to «HOW TO COPE WITH INTERMITTENT MALFUNCTIONS»(/mitsubishi/lancer-evolution/ix-2005-2007/remont/hoistjack/#general-lancer-evolution__how-to-cope-with-intermittent-malfunctions) . NO: Repair the wiring harness. Check that the A/C works normally.
16. STEP 16. Measure the voltage at condenser fan control relay (low) connector A-06X. Disconnect condenser fan control relay (low) connector A-06X, and measure the voltage at the junction block side. Measure the voltage between terminal 4 and ground. The measured value should be approximately 12 volts (battery positive voltage). Q: Is the measured voltage approximately 12 volts? YES: Go to Step 19 . NO: Go to Step 17.
17. STEP 17. Check condenser fan control relay (low) connector A-06X for loose, corroded or damaged terminals, or terminals pushed back in the connector. Q: Is condenser fan control relay (low) connector A-06X in good condition? YES: Go to Step 18. NO: Repair or replace the connector. Refer to «HARNESS CONNECTOR INSPECTION»(/mitsubishi/lancer-evolution/ix-2005-2007/remont/body-electrical/#general-electrical-lancer-evolution) .Check that the A/C works normally.
18. STEP 18. Check the wiring harness between condenser fan control relay (low) connector A-06X (terminal 4) and the battery. Q: Is the wiring harness between condenser fan control relay (low) connector A-06X (terminal 4) and the battery in good condition? YES: It can be assumed that this malfunction is intermittent. Refer to «HOW TO COPE WITH INTERMITTENT MALFUNCTIONS»(/mitsubishi/lancer-evolution/ix-2005-2007/remont/hoistjack/#general-lancer-evolution__how-to-cope-with-intermittent-malfunctions) . NO: Repair the wiring harness. Check that the A/C works normally.
19. STEP 19. Check condenser fan control relay (low) connector A-06X and condenser fan motor connector A-34 for loose, corroded or damaged terminals, or terminals pushed back in the connector. Q: Is condenser fan control relay (low) connector A-06X and condenser fan motor connector A-34 in good condition? YES: Go to Step 20. NO: Repair or replace the connector. Refer to «HARNESS CONNECTOR INSPECTION»(/mitsubishi/lancer-evolution/ix-2005-2007/remont/body-electrical/#general-electrical-lancer-evolution) .Check that the A/C works normally.
20. STEP 20. Check the wiring harness between condenser fan control relay (high) connector A-06X (terminal 1) and condenser fan motor connector A-34 (terminal 1). Q: Is the wiring harness between condenser fan control relay (high) connector A-06X (terminal 1) and condenser fan motor A-34 connector (terminal 1) in good condition? YES: Go to Step 21. NO: Repair the wiring harness. Check that the A/C works normally.
21. STEP 21. Check condenser fan control relay (low) connector A-06X and engine control module connector C-121 for loose, corroded or damaged terminals, or terminals pushed back in the connector. Q: Is condenser fan control relay (low) connector A-06X and engine control module connector C-121 in good condition? YES: Go to Step 22. NO: Repair or replace the connector. Refer to «HARNESS CONNECTOR INSPECTION»(/mitsubishi/lancer-evolution/ix-2005-2007/remont/body-electrical/#general-electrical-lancer-evolution) .Check that the A/C works normally.
22. STEP 22. Check the wiring harness between condenser fan control relay (low) connector A-06X (terminal 3) and engine control module connector C-121 (terminal 31). NOTE: Also check intermediate connector A-29 for loose, corroded, or damaged terminals, or terminals pushed back in the connector. If intermediate connector A-29 is damaged, repair or replace the connector as described in «HARNESS CONNECTOR INSPECTION»(/mitsubishi/lancer-evolution/ix-2005-2007/remont/body-electrical/#general-electrical-lancer-evolution) . Q: Is the wiring harness between condenser fan control relay (low) connector A-06X (terminal 3) and engine control module connector C-121 (terminal 31) in good condition? YES: It can be assumed that this malfunction is intermittent. Refer to «HOW TO COPE WITH INTERMITTENT MALFUNCTIONS»(/mitsubishi/lancer-evolution/ix-2005-2007/remont/hoistjack/#general-lancer-evolution__how-to-cope-with-intermittent-malfunctions) . NO: Repair the wiring harness. Check that the A/C works normally.
23. STEP 23. Measure the resistance at condenser fan motor connector A-35. Disconnect heater condenser fan motor connector A-35, and measure at the wiring harness side. Measure the resistance between terminal 2 and ground. The measured value should be 2 ohms or less. Q: Does the measured resistance value correspond with this range? YES: Replace the engine control module, and check that the A/C works normally. NO: Go to Step 24.
24. STEP 24. Check condenser fan motor connector A-35 for loose, corroded or damaged terminals, or terminals pushed back in the connector. Q: Is condenser fan motor connector A-35 connector in good condition? YES: Go to Step 25. NO: Repair or replace the connector. Refer to «HARNESS CONNECTOR INSPECTION»(/mitsubishi/lancer-evolution/ix-2005-2007/remont/body-electrical/#general-electrical-lancer-evolution) . Check that the A/C works normally.
25. STEP 25. Check the wiring condenser fan motor connector A-35 (terminal 2) and the ground. Q: Is the wiring harness between condenser fan motor connector A-35 (terminal 2) and the ground in good condition? YES: It can be assumed that this malfunction is intermittent. Refer to «HOW TO COPE WITH INTERMITTENT MALFUNCTIONS»(/mitsubishi/lancer-evolution/ix-2005-2007/remont/hoistjack/#general-lancer-evolution__how-to-cope-with-intermittent-malfunctions) . NO: Repair the wiring harness. Check that the A/C works normally.

Scheme 188

ECU TERMINAL REFERENCE CHART