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1995 buick lesabre ecm connector diagram

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1995-1999 Buick Riviera Steering Vibration/Shudder/Moan During Parking Maneuvers on Dry Pavement (Install Power Steering Pressure (Inlet) and/or Return (Outlet) Hose Assembly)

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1. Verify that the power steering pump reservoir is full. 2. Verify that the accessory drive belt is in good condition and that the pulleys are not bent or damaged. 3. Verify proper belt tension and operation of the belt tensioner. 4. Check for power steering hose ground out conditions. 5. Check for good engine idle and correct engine RPM. 6. Check to see that the rear transaxle mount does not have a plastic assembly aid installed which is used Subject: Steering Vibration/Shudder/Moan During Parking Maneuvers on Dry Pavement (Install Power Steering Pressure (Inlet) and/or Return (Outlet) Hose Assembly) Models: 1995-99 Buick Riviera 1997-2001 Buick Park Avenue, Ultra 2000-2001 Buick LeSabre 2000-2001 Pontiac Bonneville • 1995-98 Buick Riviera • 1997-98 Buick Park Avenue and Ultra • 1999 Buick Riviera • 1999-2001 Buick Park Avenue and Ultra • 2000-2001 Buick LeSabre • 2000-2001 Pontiac Bonneville • If fluid level is low, fill and check for leaks. • If power steering system has air in the system, perform the “Bleeding Air from Power Steering System” procedure as described in the Power Steering System sub-section of the Service Manual. Important: When performing the “Bleeding Air from Power Steering System” procedure, it is important that the front of the vehicle is supported by the lower control arms. If the vehicle is not supported by the lower control arms, the procedure may cause the strut bushing to dislocate and cause new concern. for assembly purposes. If the assembly aid is installed, remove the assembly aid and install the rear transaxle mount. 7. With the vehicle on dry pavement, maneuver the vehicle in parking positions. If the steering vibrates/shudders or moans in this test, replace the power steering pressure hose and/or the harmonic balancer. Important: A defective harmonic balancer on the 1995 Buick Riviera can influence steering vibrations after power steering hose installation. Important: When installing the pressure hose on the 1995 Buick Riviera, pull down on the pressure hose at the rear of the engine or bend the hose to allow clearance between the hose and the front of the dash. Power Steering Pressure (Inlet) Hose Replacement Procedure For 1995-1998 Vehicles: 1. Raise and suitably support the vehicle. Refer to Vehicle Lifting and Jacking in the General Information section of the Service Manual. 2. Drain the power steering fluid. Refer to Draining the Power Steering System in the Power Steering section of the Service Manual. 3. Remove the power steering gear assembly heat shield (1). 4. Disconnect the power steering pressure hose from the power steering pump assembly (4). 5. Remove the bolt/screws from the retaining clips (3). 6. Disconnect the power steering pressure hose from the power steering gear assembly (2). 7. Remove the power steering pressure hose assembly from the vehicle. 8. Install the power steering pressure hose assembly to the vehicle. 9. Connect the power steering pressure hose to the power steering pump assembly (4). 10. Connect the power steering pressure hose to the power steering gear assembly (2). Tighten Tighten the power steering pressure hose to the steering gear to 27 N·m (20 lb ft). 11. Install the bolt/screws to the retaining clips (3). Tighten Tighten the retaining clip bolt/screws to 6 N·m (53 lb in). 12. Install the power steering gear assembly heat shield (1). 13. Lower the vehicle. 14. Fill and bleed the power steering system using, J 43485. Refer to Corporate Bulletin Number 83-32-09, dated November, 1998. Power Steering Pressure (Inlet) and Return (Outlet) Hose Replacement Procedure For 1999-2001 Vehicles: 1. Raise and suitably support the vehicle. Refer to Vehicle Lifting and Jacking in the General Information section of the Service Manual. 2. Drain the power steering fluid. Refer to Draining the Power Steering System in the Power Steering section of the Service Manual. 3. Remove the LH front wheel/tire assembly. 4. Remove the LH lower splash shield. 5. Remove the lower radiator air deflector (engine splash shield, if installed.

2004 Buick LeSabre Shake/Vibration in Steering Wheel, Floor, Seat at Highway Speeds on Smooth Roads (Diagnose/Balance Tires/Wheels) Service Manual

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Correction 1. Visually inspect the tires and the wheels. Inspect for evidence of the following conditions and correct as necessary: 2. Set the tire pressure to 30 psi (205 kPa) COLD. Subject: Shake/Vibration in Steering Wheel, Floor, Seat at Highway Speeds on Smooth Roads (Diagnose/Balance Tires/Wheels) Models: 1998-2005 Buick Park Avenue, Park Avenue Ultra 2000-2005 Buick LeSabre 1998-2004 Cadillac Seville (SLS, STS) 2000-2005 Cadillac DeVille (DTS only) 2001-2003 Oldsmobile Aurora 2000-2005 Pontiac Bonneville (17″ Tires only) • Missing balance weights • Bent rim flange • Irregular tire wear • Incomplete bead seating • Tire irregularities • Mud/ice build-up in wheel • Stones in the tire tread © 2009 General Motors Corporation. All rights reserved 3. Road test the vehicle with the Electronic Vibration Analyzer (EVA) essential tool for a sufficient distance on a known, smooth road surface to duplicate the condition. Record the Hertz (Hz) reading as displayed by the EVA onto the tire data worksheet found at the end of this bulletin. This should be done after a tire break-in period of at least 10 miles (16 km) at 45 mph (72 km/h) or greater, in order to eliminate any possible tire flat-spotting. 4. If the road test indicates a shake/vibration still exists, check the imbalance of each tire/wheel assembly on a known, calibrated, off-car dynamic balancer. If any assembly calls for more than ¼ ounce on either rim flange, remove all balance weights and rebalance to as close to zero as possible. Important: Some GM dealers may have a Hunter GSP9700 Road Force Balancer, or a Coats XR1850 Runout Balancer. Either will simplify Step 5 by not requiring dial indicators. If a Hunter GSP9700 machine is available, it may also be used to measure the radial force of the tire/wheel assembly. A guideline here is 18 lbs or less. 5. While on the balancer, measure wheel runout. If radial or lateral runout exceeds .020 in (0.50 mm) for aluminum wheels (.030 in (0.76 mm) for steel wheels), replace the wheel. 6. After confirming wheel balance and wheel runout, if any changes were made, road test the vehicle again. 7. If the smooth road shake/vibration still exists: Important: THE CONTROL ARMS SHOULD ONLY BE INSTALLED ON VEHICLES IF, AFTER THE TIRE AND WHEEL DIAGNOSIS AND REPAIRS HAVE BEEN PERFORMED, THE VIBRATION CONDITION STILL EXISTS. 8. Replace both lower control arms on vehicles built prior to the following VIN breakpoints. On Aurora, Bonneville, DeVille, Park Avenue, Park Avenue Ultra and Seville models, a newly developed hydro-bushing lower control arm with improved damping characteristics has been released. This control arm is not used on the LeSabre. The new lower control arms may provide an incremental improvement to the vehicle ride. Customers who have become “tuned in” to the shake condition may still feel some shake in the vehicle after the new lower control arms are installed. Refer to Lower Control Arm Replacement in SI (refer to the Parts Information table below for SI document ID numbers) . Important: The completed worksheet must be attached to the hard copy of the repair order. • If a Hunter GSP9700 Road Force/Balancing machine is used, record radial force variation (RFV) on the worksheet at the end of this bulletin. If one or more of the tire/wheel assemblies read more than 18 lbs, match mount the tire to the wheel to get below 18 lbs. Readings of 12 lbs or less are preferable for sensitive customers. • If a Coats XR1850 Runout/Balancing Machine is used, record radial runout of the tire/wheel assemblies on the worksheet at the end of this bulletin. If one or more of the tire/wheel assemblies are more than .040, match mount the tire to the wheel to get below .040. Readings of .030 inch or less are preferable for sensitive customers. • If the RFV or runout cannot be reduced to an acceptable level, replace the affected tire(s) under the guidelines of the GM Tire Warranty. • The screened tire program is only available for the General branded tires used on the Buick LeSabre. Complete the tire request form at the end of this bulletin and fax to Continental/General. • Road test the vehicle to ensure the shake/vibration has been eliminated

REV / SPEED METER Vehicle Specific Wiring Diagram Installation

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Installation Precautions ?Do not use electro taps in the installation of this product. Electro taps can become loose over time causing the unit to malfunction. This can also lead to vehicle and product damage. Be sure to use wire crimpers and the included splices for a secure connection. ?Be sure that the harness is not exposed to metal. Always wrap all connections with electrical tape. ?How to use the Fittings Strip 5mm from wire Insert sleeve over wire Bend back exposed wire Place male fitting over This ECU terminal arrangement diagram is viewed from the direction of the arrow. The direction of the ECU varies depending upon the vehicle. Perform the installation work after confirming the connector shape and the number of pins. ?If any abnormal noise or abnormal smell is sensed during the installation work of this product stop the work immediately and contact the distributor or your nearest A*PEX business office Continuing the installation under such conditions may cause an electric shock or fire causing damage to electric devices.

1995 Toyota 4Runner STARTING AND CHARGING SYSTEMS REPAIR MANUAL

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TROUBLE SHOOTING NOTE: See TROUBLE SHOOTING – BASIC PROCEDURES article in GENERAL INFORMATION. 1) If a no-start condition exists and battery is known to be good, connect test light or voltmeter between starter solenoid terminal No. 50 and ground. See Figs. 6 and 7. 2) Turn ignition switch to START position. If test light or voltmeter does not indicate voltage, check main fusible links and large ampere main fuses in engine compartment relay box. If fusible links and fuses are okay, see IGNITION SWITCH CONTINUITY TEST and/or STARTER RELAY TEST under ON-VEHICLE TESTING. ON-VEHICLE TESTING NOTE: Before testing, ensure battery is fully charged, battery cables and terminal ends are tight and clean, and engine grounds are secure. CLUTCH START SWITCH TEST 1) Switch is located above clutch pedal on bracket. Disconnect wiring harness connector from switch. 2) Connect ohmmeter probes to switch terminals. Depress clutch pedal. If continuity does not exist, adjust or replace clutch start switch. If continuity exists, check circuit to starter relay for open, and check starter relay. See STARTER RELAY TEST. CLUTCH START CANCEL SWITCH TEST 1) Locate switch in left dash panel. Remove right lower instrument panel to access switch connector. Disconnect wiring harness connector from switch pigtail connector. See Fig. 1. 2) Connect negative lead of ohmmeter to terminal No. 1. Ensure continuity does not exist between connector terminals No. 1 and 2, terminals No. 1 and 3, and terminals No. 2 and 3. Check operation of switch by connecting jumper wires from 12-volt battery. Connect positive lead to terminal No. 3 and negative battery lead to terminal No. 1. 3) Using ohmmeter, ensure continuity does not exist between connector terminals No. 1 and 2 until switch button is pushed. When switch button is pushed, switch light should come on and continuity should exist. Disconnect battery and ensure continuity does not exit between terminals No. 1 and 2. If switch does not test as specified, replace switch. Fig. 1: Identifying Clutch Start Cancel Switch Connector Terminals Courtesy of Toyota Motor Sales, U.S.A., Inc. IGNITION SWITCH CONTINUITY TEST WARNING: Deactivate air bag system before performing any service operation. For 1996 4Runner, see AIR BAG RESTRAINT SYSTEM article. 1995 1) Disconnect negative battery cable. Removedriver’s lower instrument panel cover. Remove upper and lower steering column covers if needed. Locate ignition switch wiring harness 8-pin connector. See Figs. 2-3. 2) With ignition switch in LOCK position, there should be no continuity between any terminals. With ignition switch in ACC position, there should be continuity between terminals No. 2 and 3. With ignition switch in ON position, there should be continuity between terminals No. 1, 2 and 3, and between terminals No. 7 and 8. 3) With ignition switch in START position, there should be continuity between terminals No. 1, 4 and 6, and between terminals No. 7 and 8. If continuity is not as specified, replace switch.

GM Accessories Headrest DVD System Display Monitor Inoperative (Install Cable Connector Clamps)

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GM Accessories Headrest DVD System Display Monitor Inoperative (Install Cable Connector Clamps) Models: 2004-2007 Buick Rainier 2008 Buick Enclave 2003-2008 Cadillac Escalade Models 2005-2008 Cadillac CTS, SRX, STS 2006-2008 Cadillac DTS 2003-2008 Chevrolet Avalanche, Silverado, Suburban, Tahoe, TrailBlazer Models 2006-2008 Chevrolet Colorado 2007-2008 Chevrolet Equinox, HHR 2003-2008 GMC Envoy Models, Sierra, Yukon Models 2006-2008 GMC Canyon 2007-2008 GMC Acadia 2007-2008 Pontiac Torrent 2005-2008 HUMMER H2 2006-2008 HUMMER H3 2007-2008 Saturn OUTLOOK 2005-2008 Saab 9-7X This bulletin is being revised to update the models affected list. Please discard Corporate Bulletin Number 07-08-44-016 (Section 08 — Body & Accessories). Condition Some customers may comment on an inoperative display monitor or monitors in the GM Accessories Headrest DVD System. Cause This condition may be caused by a loose connection at the display monitor cable connectors. These connectors are located at the lower rear part of both front seats. Two cables are routed to the display monitor in each seat. Correction Do This Don’t Do This Install display monitor cable connector clamps. Do Not replace the DVD system display monitor. Important: A number of headrest monitors have been replaced under warranty and in many cases, no trouble was found by the supplier when these units were analyzed. Therefore, technicians should be checking for loose connections and installing cable connector clamps to ensure a positive and robust connection. Technicians are to install a video cable connector clamp on each cable connector located under each front seat. A total of four cable connector clamps, P/N 19159659, are required for each vehicle. The illustration above shows a pair of display monitor cable connectors without the cable clamps installed.