Have Toyota Questions? Ask a Mechanic for Answers ASAP
Do you have a wiring diagram and/or a voltmeter or test light with a reasonable knowledge of how to use it? What is the current status of the vehicle right now did you charge the battery up and will it start and run and is the warning lights still on?
Did the yellow check engine light come on and if so do you have a code reader to see if there any code set in the computer? How many miles are on the vehicle? Is this a four-cylinder or V-6 engine?