I have several dodges but the 1999 caravan and 2000 dakota are in the service ages, will most OBD2 work on both?

Dodge Dakota OBD Codes

2000 dakota will some times not up shift w/o load or will down shift w/o load on flat at cruise speed, speed control sensor, crank sensor? thanks. Both, the 99 & 2000 are OBD2, so any OBD2 code reader will read the codes. How well they will do is a different story. There are code readers and scanners. If you plan on doing your own work, scanners are the best way to go. But, understand that most OBD2 scanners will not scan ABS or airbags. Some scanners and code readers will only do generic codes, which doesn't include a lot of transmission trouble codes. So be sure what you are getting if you purchase one. Ask questions of the manufacturers. Does it do enhanced parameters? What are those parameters? Things like that. Most quality scan tool manufacturers will list the parameters that their scanners will do. As for the shift problem, was the transmission fluid recently changed on the vehicle? If so, was the filter replaced?

On the 99, chances are the plastic solenoids that control the shifting are on their last legs. Had the same problem with my 97. Accoring to the dealer in NJ I bought my parts from, it is the biggest problem they have with those transmissions. It is made worse by the tremendous amount of heat generated in the engine compartment, and you should put an auxiallary transmission cooler in the vehicle. They only came as standard equipment on the ones with a towing package. Also, and I know there is a lot of debate about this, but he said the only fluid that should ever be put in the chrysler trannys is the chrysler ATF+4. It is backwards comapatable with the older fluids and trannys. SUPPOSEDLY, it is formulated differently then all other brands and the oters cause deterioration in the tranny. Like I said, I know there is a lot of debate about that. Also, I replace my tranny with a factory rebuilt as opposed to a dealer rebuilt, because they do a complete rebuild as opposed to the dealer rebuilts that just replace the obviously deffective/worn/broken parts.

I put the factory rebuilt tranny, the additional fluid cooler in front of the radiator, and only use the Chrys atf+4 and have not had any of the reccuring problems that I keep reading about everywhere. Sorry I know nothing at all about the dakotas OBD 2 is for any vehicle built from 96 to present. The begining of this was called IM-240 ,due to mostly emissions standards. There are still manufacturer spaciffic diagnostics as well The dakota has a dedicated computer to operate the trans.Fault with this computer usualy is described in up shift and down shift concerns. Also remember simplest first,how does the fluid look --?---- full ? burnt? To check trans shift points with a diagnostic scanner,will take a up to date unit with data recovery and real time readings. Now From the List Below Choose the Section in which you notice car problem. Body: Door Lock Replacement  Window Motor w/Regulator Replacement Door Not Closing  Window Switch Test and Replacement Door Panel Removal Windshield Washer Pump w/Reservoir Replacement Hood Opening Instructions  Windshield Wiper Blade Replacement Brake System: ABS Computer Module Replacement Brake Pedal Goes to Floor Bleed and Flush Brake System Brake Shoe - Wheel Cylinder - Drum Replacement (part 1) Brake Shoe - Wheel Cylinder - Drum Replacement (part 2) Brake Light Bulb Replacement Brake System Warning Light On Brake Light Repair Bubbling Noises Brake Master Cylinder Replacement Light Inspection Brake Pad and Rotor Replacement - Front FWD Parking Brake Shoe Replacement Brake Pad and Rotor Replacement - Front RWD (PART 1) Brake Pad and Rotor Replacement - Front RWD (PART 2) Brake Pad and Rotor Replacement - Front RWD (PART 3) Steering Wheel Shakes Brake Pad and Rotor Replacement - Rear (Part 1) Brake Pad and Rotor Replacement - Rear (part 2) Car Noises: Bubbling Noises Engine Whistle Drivetrain Whirring Grinding Engine Noises Howling Engine Scraping Noise Suspension and Drivetrain Popping Noises Engine Vibration Car Squeaking Noise Climate Control: Air Conditioner Compressor Replacement Bubbling Noises Air Conditioner Recharge Cabin Air Filter Replacement Air Conditioner Repair Heater Core Replacement Air Vents Stay in Defrost Position Heater Hose Replacement Blend Door Motor Replacement Heater Not Working Blower Fan Motor High Speed Only  Vent Low or No Air Flow Not Working: Air Conditioner Not Working Air Conditioner Running But Very Weak Testing How To Test A Car Fuse How To Test A Car Relay How To Test Heater Blower Motor How To Use A TEST LIGHT CIRCUIT TESTER How To Use VOLTMETER TO TEST CAR CIRCUIT WARNING LIGHT Engine light flashing Cooling System Coolant Drain and Refill Radiator Fan Motor Replacement Coolant Leak Detection Radiator Hose Replacement Heater Core Replacement Radiator Replacement Overheating Engine Thermostat Replacement Drivetrain Automatic Transmission Problems Clutch Not Working Automatic Transmission Service Clutch Replacement Axle Seal Replacement (Part 1) Axle Seal Replacement (Part 2) CV Axle Replacement Axle Wheel Bearing Hub Replacement Differential Gear Oil Fluid Check Bleed and Flush Brake System Differential Service Bubbling Noises Drivetrain Whirring Clutch Master Cylinder Replace Clutch Slave Cylinder Replace Tires Working Electrical: Alternator Replacement Key Fob Reprogram Alternator Test  Light Inspection Battery Cable Cleaning - Electrical Goes Dead Mass Air Flow Sensor Replacement MAF Battery Goes Dead Overnight Mass Air Flow Sensor Service Battery Jump Start Neutral Safety Switch Test Battery Replacement Oxygen Sensor O2 Replacement Battery Test P1000 Code Repair Brake Light Bulb Replacement Radiator Fan Motor Replacement Brake Light Repair Range Rover Trouble Codes OBD1 Burned Fuse Connector Repair  Relay Test Crankshaft Angle Sensor CAS CKS Replacement Starter Motor Replacement Door Lock Replacement Starter Not Cranking DRL Light Bulb Replacement Tail Light Test and Repair Fuse Test Repair Test Light Instructions Headlight Bulb Replacement Turn Signal Repair Headlight Dim Turn Signals Blink Rapidly Idle Air Control Motor IAC Replacement Voltmeter - How to Ignition Coil Test Window Motor w/Regulator Replacement Ignition Switch Jammed Window Switch Test and Replacement Engine Mechanical: 12,000 - 15,000 Mile Service Guide Idle Air Control Motor IAC Replacement Air Filter Replacement Ignition Timing Adjust Air Intake Boot Replacement Intake Manifold Gasket Replacement Auto Maintenance and Service Procedure Instructions Low Oil Pressure Blue Smoke from Exhaust Pipe Mass Air Flow Sensor Replacement MAF Catalytic Converter Replacement Mass Air Flow Sensor Service Catalytic Converter Testing Oil Change and Filter Compression Test Oil in Coolant Coolant in Engine Oil Oil Leak Coolant Leak Detection Piston Ring Replacement Crankshaft Angle Sensor CAS CKS Replacement Power Steering Pump Replacement Crankshaft Seal Replacement - Front Safety Inspection Driver Tips Serpentine Belt Replacement Engine Noises Serpentine Belt Tensioner Replacement Engine Rattle Spark Plug Replacement Engine Scraping Noise Starter Not Cranking Excessive Smoke From Exhaust Pipe Throttle Bore Idle Air Control Service First Service Vacuum Leak Test Fluid Level Inspection Valve Cover Gasket Replacement Head Gasket Blown Test Vehicle Maintenance and Safety Inspection High Oil Pressure Engine Performance: Backfire Repair Low Power Black Smoke From Exhaust Pipe Misfire - Engine Miss Blue Smoke from Exhaust Pipe No Start Engine Code Scan Overheating Engine Cranks Excessively Before Starting P1000 Code Repair Engine Noises Smog Test Failed Engine Squeaking Stalls After Dead or New Battery Engine Vibration Stalls at Idle Excessive Smoke From Exhaust Pipe Stalls While Driving Exhaust Pipe Smoke - White Starter Not Cranking Hesitation  Surges Idling High or Low Tune up Lean Exhaust Code Repair P0171 P0174 Vacuum Leak Test Fuel System: Fuel Filter Replacement Fuel Pump Replacement Fuel Injector Replacement Fuel Pump Test Fuel Injector Test Suspension Bubbling Noises Steering Wheel Shakes Power Steering Fluid Flush and Fill Suspension and Drivetrain Popping Noises Power Steering Pulley Removal Tie Rod End Replacement Power Steering Pump Replacement Tires Power Steering Repair Upper Control Arm Replacement Shock Absorber Replacement