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2004 – 2006 Toyota Sienna Vehicles Equipped w/ Power Back Door (Power Rear Liftgate) Repair Manual

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Certain 2004 – 2006 Model Year Sienna vehicles equipped w/Power Back Door (Rear Liftgate) Q1: What is the condition? A1: Toyota has determined that the gas struts used to help lift and support the Power Rear Liftgate in certain 2004 through 2006 model year Sienna vehicles could be wearing out sooner than expected. As the gas struts deteriorate, the performance of the Power Rear Liftgate will begin to degrade, and the Power Rear Liftgate will operate more slowly than when the gas struts were new. Only Sienna vehicles equipped with the Power Rear Liftgate are involved. Q2: Are there any warnings that this condition exists? A2: Owners may notice that the Power Rear Liftgate will not remain in the open position. If not repaired, the gas struts may not be able to support the weight of the liftgate when it is open, and eventually, the gas struts could deteriorate to the point that the liftgate will fall about ten inches after it reaches the fully open position, at which point the power motor will engage and power the liftgate to the fully closed position. This condition may cause injury to a person who is struck by the liftgate when it falls or when it is closing. Q3: When were these vehicles produced, and how many vehicles are involved? A3: Only certain 2004 through 2006 model year Sienna vehicles equipped with the Power Rear Liftgate, produced between January 2003 and December, 2006 are involved. Approximately 196,000 vehicles are involved nationwide.

2004 Chevrolet TrailBlazer Noise Coming From Instrument Panel Cluster (Replace Instrument Panel Cluster (IPC)) Repair Manual

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This bulletin is being revised to add model years and provide important repair information. Please discard Corporate Bulletin Number 04-08-49-015 (Section 08 — Body and Accessories). Condition Some customers may comment on a noise coming from the instrument panel cluster (IPC) while driving or on initial start-up. Instrument clusters may contain stepper motor gages that can make noise during the following conditions: Subject: Noise Coming From Instrument Panel Cluster (Replace Instrument Panel Cluster (IPC)) Models: 2003-2005 Buick LeSabre 2003-2007 Buick Rendezvous 2004-2005 Buick Rainier 2003-2006 Cadillac Escalade, Escalade ESV, Escalade EXT 2003-2005 Chevrolet Cavalier, Impala, Monte Carlo 2003-2006 Chevrolet Avalanche, Suburban, Tahoe, TrailBlazer EXT 2003-2007 Chevrolet Silverado Classic, TrailBlazer 2003-2007 Chevrolet Kodiak Models 2004-2006 Chevrolet SSR 2003-2006 GMC Envoy XL, Yukon, Yukon XL 2004-2005 GMC Envoy XUV 2004-2007 GMC Envoy 2003-2007 GMC Sierra Classic 2003-2004 Oldsmobile Bravada 2003-2005 Pontiac Aztek, Bonneville, Sunfire 2003-2005 HUMMER H2 Attention: Appropriate repair is based on vehicle build date. Use GMVIS to determine the vehicle build date. • Initial startup (gages zero/reset)

2004-2006 Chevrolet Malibu, Malibu Maxx Loss of Power Steering Assist, Power Steering Warning Message Displayed in DIC, IPC/Radio Displays Erratic, DTC C0900, B1325 Set (Replace Ignition Coil/Module Assembly and Add Ground Strap)

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Correction Replace the ignition coil/module assembly and add ground strap following the procedure below. 1. Disconnect the ignition coil electrical connector. 2. Disconnect the left side spark plug wires from the ignition coil. 3. Disconnect the right side spark plug wires from the ignition coil. 4. Remove the four bolts attaching the ignition coil to its mounting bracket and remove the ignition coil. 5. Remove the ignition coil from the mounting bracket. 6. Loosen the two lower ignition coil mounting bracket nuts. 7. Remove the two upper ignition coil mounting bracket bolts and discard. Subject: Loss of Power Steering Assist, Power Steering Warning Message Displayed in DIC, IPC/Radio Displays Erratic, DTC C0900, B1325 Set (Replace Ignition Coil/Module Assembly and Add Ground Strap) Models: 2004-2006 Chevrolet Malibu, Malibu Maxx with 3.5L Engine (VINs 8, N — RPOs LX9, LZ4) 8. Install the ground strap (1), P/N 12581176, to the upper left side of the bracket as shown between the coil bracket and intake. Install the new bracket bolt, P/N 11570082, (do not tighten at this time). Prior to installing the ground strap, remove the captured nut and washers. They are not needed (simply pound them out with a hammer on a vise). 9. Install the washer (2), P/N 02436162, to the upper right side of the bracket between the coil bracket and intake. Install the new bracket bolt, P/N 11570082, (do not tighten at this time). Tighten Tighten all the ignition coil bracket bolts and nuts to 25 N·m (15 lb ft). 10. Install the new ignition coil to the mounting bracket. 11. Install the other end of the ground strap to the coil as shown and secure using a new bolt, P/N 11588715. 12. Install the other three ignition coil bolts. Tighten Tighten the bolts to 10 N·m (89 lb in). 13. Connect the right side spark plug wires to the ignition coil. 14. Connect the left side spark plug wires to the ignition coil. 15. Connect the ignition coil electrical connector

1998 – 2003 Toyota Sienna SLIDING DOOR DIAGNOSTIC TIPS/ REPAIR MANUAL

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CONDITION POSSIBLE CAUSE COMMON REPAIR Top RollerComes Rail bent or widened condition Replace the upper slide door rail. Top Roller Comes Out of Rail Guide The stopper at the end of the rail is loose or missing. Replace the stopper as needed. Door Does Not Lock in Full Open Position Full open stop latch assembly is damaged. Replace the full open stop latch assembly. Left Door Opens Half Way Fuel door half stopper cable damaged. Adjust the cable. Replace the cable, if damaged. Difficltto Open Dirty weatherstrip. Clean all soda spills or other sticky substances that may have accumulated on weatherstrip and door. Difficult to Open Manually Inside handle release button damaged. Replace inside handle release button assembly according to TSB No. BO027-00, “Sliding Door Handle Push Button Operation”. Door out of adjustment. Adjust levelness of the door, according to Repair Manual. Dragging Open/Close Mll Running board rubs against the bottom of the sliding door. Adjust running board to proper position and assure clearance from the door. Manually Roller rails have bent or warp condition. Dirt or debris in the rails and rollers. Clean rails and rollers. Replace damaged parts. CONDITION POSSIBLE CAUSE COMMON REPAIR Creak Noise Junction block, damaged components, and other issues Refer to TSB No. BO003-99, “Sliding Door Creak Noise Reduction.” Refer to the “Common Sources of Creak Noise” section of this bulletin for additional information for sources of creak noise. Rattle or Clicking (NOT Creak Noise) Door moving when driving over bumps Rollers loose or damaged Adjust lower roller base mounting to bring door closer to body (Refer to TIS, applicable model year Sienna Repair Manual, Vehicle Exterior – Door/Hatch – “Slide Door: Adjustment”). Adjust strikers to bring door closer to the body. Inspect the latch assembly and replace, if damaged. Replace damaged rollers. Noise During Open/Close Rollers or rails are damaged and/or dirty. Inspect, clean, and/or replace as needed

2004 Toyota Sienna POWER SLIDING DOOR INOPERATIVE Repair Manual

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Remove Slide Door Window Garnish. A. Fully open the slide door window. B. Remove the glass run. C. Using a screwdriver, disengage the clip and remove the garnish. HINT: Tape the screwdriver tip before use. D. Using the taped screwdriver, disengage the 2 claws and remove the inner weatherstrip from the garnish. Parts Information Repair Procedure Clip POWER SLIDING DOOR INOPERATIVE – EL004-04 April 19, 2004 Page 3 of 7 2. Remove Side Trim Board Cover Rear. A. Remove the 2 screws. B. Using the taped screwdriver, disengage the 8 claws and remove the cover together with the window control switch. C. Remove the 2 screws and window control switch. 3. Remove Rear Door Trim Board Sub-assembly. A. Remove the screw. B. Using the taped screwdriver, disengage the 9 clips and remove the trim board. HINT: In order to prevent the door panel from being damaged, cover the areas with protective tape as indicated by the arrows in the illustration. 4. Remove Rail End Molding. A. Open the quarter glass. B. Using the taped screwdriver, disengage the clip and 2 claws, and remove the rail end molding. Repair Procedure (Continued) : Claw 1 2 3 4 5 5 4 3 2 1 Protective Tape Protective Tape : Clip : Clip : Claw POWER SLIDING DOOR INOPERATIVE – EL004-04 April 19, 2004 Page 4 of 7 5. Remove Center Bracket No. 2. A. Remove the 2 bolts and Center Bracket No. 2 together with the tensioner (color: white). B. Remove the tensioner from Center Bracket No. 2. 6. Remove Center Bracket No. 1. A. Remove the 2 bolts and Center Bracket No. 1 together with the tensioner (color: black). B. Remove the tensioner from Center Bracket No. 1. 7. Remove Slide Door Window Assembly LH. A. With Sunshade: Remove the sun shade hook. B. Remove the bolt and window frame. C. Remove the bolt. D. Loosen the nut. E. Push the rear lower window frame in the direction indicated by the arrow in the illustration