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Home >> Mitsubishi >> 2008 >> Eclipse L4-2.4L (4G69) >> Repair and Diagnosis >> Body and Frame >> Body Control Systems >> Testing and Inspection >> Symptom Related Diagnostic Procedures >> Symptom Diagnostic Procedures >> Inspection Procedure D-3

Inspection Procedure D-3

INSPECTION PROCEDURE D-3: Power Window: Only the door window (LH) does not work by operating the power window main switch.

Power Window (LH) Circuit (Part 1):




Power Window (LH) Circuit (Part 2):






CIRCUIT OPERATION
The power window motor (LH) receives a signal ("UP", "DOWN" or "AUTO DOWN") from the power window main switch and controls the power window (LH).

TECHNICAL DESCRIPTION (COMMENT)
The power window main switch or the power window motor (LH) may be defective.


TROUBLESHOOTING HINTS
- The power window main switch may be defective
- The power window motor (LH) may be defective
- The wiring harness or connectors may have loose, corroded, or damaged terminals, or terminals pushed back in the connector

DIAGNOSIS

Required Special Tools:
- MB991223: Harness Set
- MB992006: Extra Fine Probe

STEP 1. Check power window motor (LH) connector E-16 for loose, corroded or damaged terminals, or terminals pushed back in the connector.






Q: Is power window motor (LH) connector E-16 in good condition?

YES : Go to Step 2.

NO : Repair or replace the damaged component(s). Refer to General (Electrical), Harness Connector Inspection. When the power window main switch is operated, the front power window (LH) should lower or raise normally.

STEP 2. Check the battery power supply circuit to the power window motor (LH). Measure the voltage at power window motor (LH) connector E-16.




1. Disconnect power window motor (LH) connector E-16 and measure the voltage available at the harness side of the connector.




2. Measure the voltage between terminal 8 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 4.

NO : Go to Step 3.

STEP 3. Check the wiring harness between power window motor (LH) connector E-16 (terminal 8) and junction block (fuse 2).











NOTE: Also check intermediate connector C-25 for loose, corroded or damaged terminals, or terminals pushed back in the connectors. If intermediate connector C-25 is damaged, repair or replace the damaged component(s) as described in General (Electrical), Harness Connector Inspection.

Q: Is the wiring harness between power window motor (LH) connector E-16 (terminal 8) and junction block (fuse 2) 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. The power windows function should now work normally.

STEP 4. Check the ground circuit to the power window motor (LH). Measure the resistance at power window motor (LH) connector E-16.




1. Disconnect power window motor (LH) connector E-16 and measure the resistance available at the junction block side of the connector.




2. Measure the resistance value between terminal 4 and ground.
- The resistance should be 2 ohms or less.

Q: Is the measured resistance 2 ohms or less?

YES : Go to Step 6.

NO : Go to Step 5.

STEP 5. Check the wiring harness between power window motor (LH) connector E-16 (terminal 4) and ground.











NOTE: Also check intermediate connector C-25 for loose, corroded or damaged terminals, or terminals pushed back in the connectors. If intermediate connector C-25 is damaged, repair or replace the damaged component(s) as described in General (Electrical), Harness Connector Inspection.

Q: Is the wiring harness between power window motor (LH) connector E-16 (terminal 4) 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. The power windows function should now work normally.

STEP 6. Check power window main switch connector E-14 for loose, corroded or damaged terminals, or terminals pushed back in the connector.






Q: Is power window main switch connector E-14 in good condition?

YES : Go to Step 7.

NO : Repair or replace the damaged component(s). Refer to General (Electrical), Harness Connector Inspection. When the power window main switch is operated, the front power window (LH) should lower or raise normally.

STEP 7. Check the power window main switch.

1. Remove the power window main switch. Refer to Body, Door, Door Glass and Regulator.




2. Check continuity while power window main switch is moved to "UP" and "DOWN" position.






Q: Is the power window main switch normal?

YES : Go to Step 8.

NO : Replace the power window main switch. When the power window main switch is operated, the front power window (LH) should lower or raise normally.

STEP 8. Check the wiring harness between power window main switch connector E-14 (terminal 7) and power window motor (LH) connector E-16 (terminal 6).






Q: Is the wiring harness between power window main switch connector E-14 (terminal 7) and power window motor (LH) connector E-16 (terminal 6) 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. When the power window main switch is operated, the front power window (LH) should lower or raise normally.
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