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1998 Cadillac Catera Support Question

1998 Cadillac Catera Support Question

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Question posted by davidlaura on February 9th, 2013

How To Reset Ecu

engine missfires ,speedometer and odo do not work cruise control does not work transmission ruff shift accelerator does not respond all the time does sometimes engine starts sometimes not all the time . things i have done to fix these problems have not worked [ replaced speed sensor on transmission replaced spark plugs and wires ] the security light use to come on it went out still have same problems i found a bad fuse under dash 30 amp i replaced it the security light is back on didn't fix any of the problems i think the check engine light is not working it doesn't light up when key is turned to on however it does code on OBDII these are the codes [ PO501  PO300  PO304  PO302  PO303 ] these codes have been cleared i then replaced wires plugs and speed sensor the codes came back again after these repairs is this a ECU problem if so how do i reset the computer

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Related Manual Pages

Owner's Manual - Page 72

... Engine Coolant Heater (If Equipped) Automatic Transmission Operation Parking Brake Shifting Into PARK (P) Shifting Outof PARK (P) 2-29 2-29 2-30 2-3 1 2-32 2-33 2-33 2-39 2-45 2-46 2-48 2-5 1 2-55 2-60 2-63 Parking Over Things that tell you can learn about the many standard and optional features on your vehicle, information on starting, and shifting and braking. Section 2 Features and Controls...
Owner's Manual - Page 80

...optional theft-deterrent system. Battery Replacement Under normal use care not to touch any location. reset the transmitter, you pressthis symbol to lock the doors (including the fuel door), the ... buttons 10 or more times outof range will unlock the other doors. your dealerfor service See if your body transferred to these surfaces may cause the transmitter notto work. If a transmitter is...
Owner's Manual - Page 86

... this equipment. If the engine still won't start your vehicle again. If your vehic does start but it may You also... time, the shutdownwill start the vehicle. the starterwon't work with If the other an than authorized service facility could void authorization to start your...When the system senses that matches an immobilizer control unit in your vehicle. Immobilizer Your vehicle is...
Owner's Manual - Page 89

... accelerator pedal, turn your starter motor. 1. If it there you ever haveto have your vehicle towed, see f tells the part of the key.The idle speed will down as START for about three seconds at a time will cause your engine still won't start (or starts but then stops again, the same thing. NOTICE: Holding your key in START...
Owner's Manual - Page 92

... restart your vehicle is in the Index. NOTICE: Damage to the transmission caused shifting by your foot is dangerous. Ensure the shift lever is fully in this gear to back up. You have to fully apply the regular brakes before starting the engine. push the shift lever all the way PARK (P)as you 're already movingor...
Owner's Manual - Page 99

... see a yellow tab. At the bottom of the shift lever boot (covering) together (as you can . Pull the upper part the base out first and then slide of 7. Have the vehicle fixed as soon as shown). 5. Start the engine (if you can ) and then shift to unlock the shift lever. 4. out the lower part the base...
Owner's Manual - Page 107

... dangerous where you can't drive safely at (40 km/h). Cruise Control With cruise control, you can maintain a speed of about 25 mph at a steady speed.So, don't use your cruise control on slippery roads. If your foot m) on the accelerator.This can help on slippery roads. Cruise control does not work speeds below about 25 mph (40 k k or more without...
Owner's Manual - Page 108

... lose control. Accelerate to the speed you want to . Press the SET/ACCEL button at the end of the lever and releaseit. 3. Keep the cruise control switchoff until you want to useit. 1. Remove your cruise control switch on when I I d you're not using cruise, you might hit a button and go into cruise when you don't want . 2 . Setting Cruise Control /A\ CAUT1C...
Owner's Manual - Page 109

... Each time you do this , your speed while using cruise control: 0 Press the RESUMEDECEL button at the end of and then release the button and accelerator pedal...Cruise Control There are two ways to to a higher speed: go Use the accelerator pedalto go to reduce your vehicle will do go about 1 mph (1.6 km/h) faster.) The accelerate feature will only work after have set the you cruise control...
Owner's Manual - Page 110

... hills. Pull this to be too much trouble and don't use cruise control on the interior lamps and to When you turn the lamps off the pedal, your speed. Passing Another Vehicle While Using Cruise Control Use the accelerator pedalto increase your vehicle will work on the left side the instrument panel of operate the following...
Owner's Manual - Page 134

... (rnph) and kilometersper hour (km/h). Warning lights and gages can signal thatsomething is fuel shut off. Speedometer and Odometer The speedometer lets you see your speedin both miles per minute (rpm). Paying attention to the engine. The odometer shows how far your vehiclehas been driven, in either miles (used in the United States...
Owner's Manual - Page 135

... few pages, some warning lights come on briefly when start the you engine just to there's a problem withyour vehicle. The safety belt light will also come on andstay on . Often gages and warning lights work together let you know they're working. If the driver's belt is a problem may with this manual's advice. When one of...
Owner's Manual - Page 136

... Light Your vehicle's hydraulicbrake system is a brake problem system may not work and stop you. engine or comes on when you start the need service you start your brake system inspected right away. serviced right ... will come on then, have fixed so it ready to light doesn't come on briefly to To battery until you if thereis an electrical problem.The system check includes the air...
Owner's Manual - Page 143

...start-up .) is missing fuel cap will allow fuel to correct the emission system fuel "Fuel" in the Index). If you use.It will cause your engine may problems...should turn the light off . Have you low on acceleration. (These cap has been leftoff or improperly installed.... fix As your engine starts to run as efficiently as designed.You may be detected by considering the following: engine ...
Owner's Manual - Page 145

... while starting and stays on for about one minute or comes on whenever you must press the brake pedal to the proper level. "Engine Oil" in See the Index. Cruise Control Light This light comes on while driving, the engine oil level should checked. Check the oil level and bring it repaired. Brake To Shift Light...
Owner's Manual - Page 200

...'s ready go. service, have up . Fuel, Engine Oil, Other Fluids: Have you allow a reasonable...to recommended pressure? 0 a Tires: They are some things you actually are. don't planto make certain you ... Are the tires all working? If you to must start when you time to the proper lane ...your speedometer, not to to think you are going slower than you check before starting out...
Owner's Manual - Page 214

.... Backing Up Hold the bottom of engine and transmission overheating. 4-35 Driving On Grades Reduce speedand shift to a lower gear before you towa...on your signal when they wouldget hot and no longer work well. Avoid making very sharp turns while trailering. ...to passed vehicle before you start down along or steep downgrade.If you don't shift down and reduce your on instrument ...
Owner's Manual - Page 307

... Switch, Heater and A/C Control, Heated Outside Rearview Mirror andRear Window Defogger Relay Rear Suspension Leveling Air Compressor Relay,Instrument Cluster, Gage Cluster,Cruise Control Switch and Module, Headlamp ...Window Switch, Inside Rearview Mirror RH and LH Rear Cushion Seat Heater Relay Transmission Control Module Radio Speaker Amplifier RH and LH Rear Side Door Window Regulator Motor 13...
Owner's Manual - Page 332

... Heater. SurgeTank ...5-14 WhattoUse ...6-21 CoolingSystem ...5-14 Cornering Lamps ...2-43 CruiseControl ...2-36 Cruise Control Light ...2-74 Customer Assistance for Text Telephone 7-4 (TTY)Users ...Customer Assistance Information ...7-1 Customer Satisfaction Procedure ...7-2 .. 6-51 Damage. Automatic Transmission ...2-22 Driver Position ...1-19 Driver's Side Instrument Panel Fuse Block...6-57...
Owner's Manual - Page 335

... Transmission Warning ...2-76 2-76 Brake Pad Wear Indicator ...Brake System Warning ...2-65 BrakeToShift ...2-74 Charging System Indicator ...2-65 2-70 CheckEngine ...2-74 CheckOil ...Cruise Control ...2-74 Engine Coolant Temperature Warning ...2-69 2-76 Leveling Indicator ...Low Coolant Warning ...2-70 2-76 LowFuel ...Low Washer Fluid Warning ...2-75 ...Oil Mud. Hood 6-8 Checking Things...

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