Symptom Related Diagnostic Procedures
DOOR DIAGNOSISINTRODUCTION TO GLASS AND DOOR DIAGNOSIS
Glass and door faults include water leaks and improper opening and closing. Causes for these faults can include faults in the glass, weatherstrip, drain hole or door installation.
GLASS AND DOOR DIAGNOSTIC TROUBLESHOOTING STRATEGY
Use these steps to plan your diagnostic strategy. If you follow them carefully, you will be sure that you have exhausted most of the possible ways to find a glass and door fault.
1. Gather information from the customer.
2. Verify that the condition described by the customer exists.
3. Find the malfunction by following the Symptom Chart.
4. Verify malfunction is eliminated.
SYMPTOM CHART
Symptom Chart:
SYMPTOM PROCEDURES
INSPECTION PROCEDURE 1: Water Leak Through Door Window Glass
DIAGNOSIS
STEP 1. Check the window glass runchannel.
Q: Is the window glass runchannel in good condition?
YES : Go to Step 2.
NO : Replace the runchannel, then go to Step 4.
STEP 2. Check the door window glass installation.
Q: Is the door window glass installed correctly?
YES : Go to Step 3.
NO : Reinstall the door window glass. Then go to Step 4.
STEP 3. Check the clearance at the top of the door window glass.
Q: Is the clearance at the top of the door window glass correct?
YES : Go to Step 4.
NO : Adjust the door window glass. Then go to Step 4.
STEP 4. Retest the system.
Q: Is any water leaking?
YES : Return to Step 1.
NO : The procedure is complete.
INSPECTION PROCEDURE 2: Door Window Glass Malfunction
DIAGNOSIS
STEP 1. Check the door window glass installation condition.
Q: Is the door window installed correctly?
YES : Go to Step 2.
NO : Reinstall the door window glass. Then go to Step 4.
STEP 2. Check the delta window glass.
Q: Is the delta window glass in good condition?
YES : Go to Step 3.
NO : Repair or replace delta window glass, then go to Step 4.
STEP 3. Inspect the window regulator assembly.
Q: Is the window regulator assembly in good condition?
YES : Go to Step 4.
NO : Repair or replace the window regulator assembly, then go to Step 4.
STEP 4. Retest the system.
Q: Does the door window operate correctly?
YES : The procedure is complete.
NO : Return to Step 1.
INSPECTION PROCEDURE 3: Water Leak Through Door Edge
DIAGNOSIS
STEP 1. Check the weatherstrip.
Q: Is the weatherstrip in good condition?
YES : Go to Step 2.
NO : Replace the weatherstrip, then go to Step 3.
STEP 2. Check the door fit (alignment).
Q: Is the door fit (alignment) correct?
YES : Go to Step 3.
NO : Adjust the door fit. Then go to Step 3.
STEP 3. Retest the system.
Q: Is any water leaking?
YES : Return to Step 1.
NO : The procedure is complete.
INSPECTION PROCEDURE 4: Water Leak from Door Center
DIAGNOSIS
STEP 1. Check the drain hole.
Q: Is the drain hole clogged?
YES : Clean the drain hole, then go to Step 3.
NO : Go to Step 2.
STEP 2. Check the weatherstrip.
Q: Is the weatherstrip in good condition?
YES : Go to Step 3.
NO : Repair or replace the weatherstrip, then go to Step 3.
STEP 3. Retest the system.
Q: Is any water leaking?
YES : Return to Step 1.
NO : The procedure is complete.
INSPECTION PROCEDURE 5: Door Hard to Open
DIAGNOSIS
STEP 1. Adjust the latch and striker engagement.
Q: Is the latch and striker engagement adjusted?
YES : Go to Step 2.
NO : Adjust the latch and striker. Then go to Step 4.
STEP 2. Check for lock cable and lock rod damage.
Q: Are the lock cable and the lock rod damaged?
YES : Repair or replace the lock cable and the lock rod, then go to Step 4.
NO : Go to Step 3.
STEP 3. Check the door handle flexibility (amount of movement of handle required to open door).
Q: Is the door handle flexibility good?
YES : Go to Step 4.
NO : Check the door outside handle and inside handle. Then go to Step 4.
STEP 4. Retest the system.
Q: Does the door open easily?
YES : The procedure is complete.
NO : Return to Step 1.
INSPECTION PROCEDURE 6: Door does not Open or Close Completely
DIAGNOSIS
STEP 1. Check the door hinge position.
Q: Is the door hinge correct?
YES : Go to Step 2.
NO : Adjust the door hinge. Then go to Step 4.
STEP 2. Check the door for damage.
Q: Is the door in good condition?
YES : Go to Step 3.
NO : Repair or replace the door, then go to Step 4.
STEP 3. Check lubrication.
Q: Are the door check and door hinge sufficiently lubricated?
YES : Go to Step 4.
NO : Apply grease, then go to Step 4.
STEP 4. Retest the system.
Q: Does the door open and close completely?
YES : The procedure is complete.
NO : Return to Step 1.
INSPECTION PROCEDURE 7: Uneven Gap Between Body
DIAGNOSIS
Adjust the door fit. Then check that the gap has been improved.
INSPECTION PROCEDURE 8: Wind Noise Around Door
DIAGNOSIS
STEP 1. Check the weatherstrip for holding condition.
Q: Is the weatherstrip holding firmly?
YES : Go to Step 2.
NO : Adjust fit of weatherstrip. Then go to Step 5.
STEP 2. Check the weatherstrip for installation condition.
Q: Is the weatherstrip installed properly?
YES : Go to Step 3.
NO : Repair or replace the weatherstrip. Then go to Step 5.
STEP 3. Check the clearance.
Q: Are the door glass and door weatherstrip holder installed properly?
YES : Go to Step 4.
NO : Adjust the door glass and the weatherstrip holder. Then go to Step 5.
STEP 4. Check the door for deformation.
Q: Is the door deformed?
YES : Replace the door. Then go to Step 5.
NO : Go to Step 5.
STEP 5. Retest the system.
Q: Has the wind noise been improved?
YES : Return to Step 1.
NO : This diagnosis complete.