Service Procedure
Service ProcedurePreliminary Accessory Switch Operation Check
Check the following operations of the accessory switch:
- Lock and unlock switch operation
- Up and down operation for each window
- Automation function of AUTO switch
- Window lock switch operation
- Illumination of "AUTO" on automatic switch (headlights must be on to confirm)
If any of the above operations do not perform correctly, diagnose and repair as outlined in SI.
Note
If an issue is found in a component other than the accessory switch, the repair of the component WILL NOT be covered under this campaign.
Accessory Switch Inspection
Important
Replace the accessory switch assembly ONLY if:
- Damage (hole or deformation) is visible on the outside of the switch housing.
- Damage is confirmed on the inside of the housing preventing smooth operation of the switch levers.
- Damage is confirmed on the base to which the circuit board mounts.
If none of these conditions are found during the inspection, DO NOT replace the switch assembly. The accessory switch assembly DOES NOT need to be replaced if the visible damage is isolated to the circuit board. A very small number of vehicles will require switch assembly replacement.
1. Remove the accessory switch assembly.
1. Using a taped flat bladed tool, gently disengage the clip and the seven retainers of the side door accessory switch mounting plate, and slide rearward from the front side door trim.
2. Disconnect the electrical connector.
3. Remove the three screws and the accessory switch from the mounting plate.
2. Check all switches (1) that do not have AUTO function (2) for the catching condition.
Note
- All switches that ARE NOT AUTO MUST be inspected.
- The switches MUST be operated slowly otherwise the catching cannot be noticed.
- The switches MUST be operated with two fingers otherwise the catching cannot be noticed.
- The switches may feel unsmooth this DOES NOT mean the switch is no good.
Note
OK = Good / NG = No Good
3. Operate each switch in the up direction, and then slowly return the switch using two fingers.
4. Operate each switch in the down direction, and then slowly return the switch using two fingers.
- If none of the switches are catching, proceed to the Check Resistance of the Switches procedure in the bulletin.
- If one or more of the switches are catching, replace the accessory switch circuit board. For removal, refer to steps 1-4 of the Check Resistance of the Switches procedure in this bulletin. For installation, refer to the Switch Reassembly procedure in this bulletin. DO NOT reuse the screws that have been removed, new one-way screws MUST be used.
Check Resistance of the Switches
Important
- Removing the lock button while it is turned ON may damage the switch.
- To prevent damage, Do Not use tools.
Note
OK = Good / NG = No Good
1. Turn the window lock switch to the OFF position.
2. Pull the button up to remove it from the switch assembly.
Important
DO NOT reuse the screws that have been removed, new one-way screws MUST be used.
3. Remove the switch circuit board screws. Discard the screws.
4. Lift the switch board straight up to remove it.
5. Align each switch pin with the "V" mark on all switches that do not have AUTO function.
6. Align the switch pin with the center line on all AUTO function switches.
Important
- If the AUTO switches are not aligned correctly, the readings may be inaccurate
- The switches MUST be in this position when checking the resistance. This is the OFF position. If the switch is in any other position, the readings will be incorrect.
- ALL switches that ARE NOT AUTO MUST be checked.
7. Push the window lock button so that it is in the down position.
Important
If the window lock button is not in the down position, the readings may be inaccurate.
8. Perform the ZERO calibration function on the DVOM.
Note
OK = Good / NG = No Good
9. Measure the resistance between points A-B and points B-C.
Important
- If the ZERO calibration function is not performed, the readings may be inaccurate.
- Set the DVOM to the maximum resistance range.
- DO NOT touch any metal other than the points A, B, C on the circuit board when checking resistance.
- The points being checked are small, confirm the probes are contacting the correct points.
- ALL switches that ARE NOT AUTO MUST be checked.
10. Record the resistance readings.
- If the resistance value for ALL switches is infinite, fill the switches with grease. Refer to the Grease Application procedure in this bulletin.
- If one or more resistance value IS NOT infinite, replace the accessory switch circuit board. Refer to the Switch Reassembly procedure in this bulletin.
Important
Replace the accessory switch assembly ONLY if:
- Damage (hole or deformation) is visible on the outside of the switch housing.
- Damage is confirmed on the inside of the housing preventing smooth operation of the switch levers.
- Damage is confirmed on the base to which the circuit board mounts.
If none of these conditions are found during the inspection, DO NOT replace the switch assembly. The accessory switch assembly DOES NOT need to be replaced if the visible damage is isolated to the circuit board. A very small number of vehicles will require switch assembly replacement.
Grease Application
Note
- Approximately 0.5 to 0.9 ml of grease will be needed for each circuit board assembly.
- One tube contains 15 ml of grease and will remedy approximately 15 vehicles.
1. With the cap on, shake the tube of grease to confirm the grease is at the mouth of the tube.
2. Attach the adapter to the tube of grease.
3. Screw the syringe onto the adapter.
4. Gently squeeze the tube while pulling up on the plunger to fill the syringe.
5. Remove the syringe from the adapter and screw on the nozzle.
Important
ALL switches that ARE NOT AUTO MUST be greased.
6. Position the switches. Slide the switch pins all the way to the front.
Note
The grease may overflow through the back side of the switch, this is acceptable.
7. Insert the nozzle in hole 1 as far as it will go and fill the hole with grease. Fill the switch until the grease begins to slightly overflow.
8. Insert the nozzle in hole 2 as far as it will go and fill the hole with grease. Fill the switch until the grease begins to slightly overflow.
9. Wipe up any excess grease from the switches.
10. Reposition the switches. Slide the switch pins all the way to the rear.
Note
The grease may overflow through the back side of the switch, this is acceptable.
11. Insert the nozzle in hole 3 as far as it will go and fill the hole with grease. Fill the switch until the grease begins to slightly overflow.
12. Insert the nozzle in hole 4 as far as it will go and fill the hole with grease. Fill the switch until the grease begins to slightly overflow.
13. Wipe up any excess grease from the switches.
14. Store the syringe set to be used on future vehicles. Store in a location free from dust and debris.
Switch Reassembly
1. Place the window lock button in the up position.
Important
If the switch pins are not aligned, the switches will not operate correctly after reassembly.
2. Position the switches. Align all switch pins with the marks as shown in the illustration below.
3. Carefully position the circuit board into the switch case avoiding misaligning the switch pins.
Important
DO NOT install the screws to secure the circuit board until completing the operation checks described below.
Important
OK = Good / NG = No Good
4. While holding the circuit board in the switch case, check the operation of the switches. The movement up/down and lock/unlock position should be equal in both directions.
- If movement is equal in ALL switches, the circuit board is positioned correctly. Proceed to step 5.
- If movement in one or more switch IS NOT equal, one or more switch pin is misaligned. Repeat steps 2-4.
5. Install the one-way screws.
6. Install the window lock button. Press the lock button firmly until a snap is heard.
7. Install the accessory switch assembly to the mounting plate.
8. Install the three screws.
9. Connect the electrical connector.
10. Slide the side door accessory switch mounting plate forward to engage the clip and the seven retainers to the front side door trim.
11. Confirm the following operations of the accessory switch:
- Lock and unlock switch operation
- Up and down operation for each window
- Automation function of AUTO switch
- Window lock switch operation
- Illumination of "AUTO" on automatic switch (headlights must be on to confirm)