Chevrolet Repair Questions? Ask a Mechanic for Answers ASAP
Hello and welcome! My name is ***** ***** I can assist you with your question. Is the engine cranking over but not starting or does it not crank over at all? Are there any codes in the computer? Can I start by getting your VIN?
Ok, does the engine have spark? Does it run on starting fluid?
Have you tried to do the relearn procedure?
What about the relearn procedure?
So you did the relearn prcedure for 10 minutes? Did you try it for any longer than 10 minutes?
Ok, have you checked the wiring and voltages of the passlock sensor?
Three wires at the Passlock sensor to test. Test voltage from the Black wire to the White wire, back probing with the sensor connected. Should have 9.5v or higher at: IGN 0, IGN 1 and CRANK. Test voltage on the Yellow signal wire. Should have 4.7-5.0v at: IGN 0, and then a drop to a specific value should occur as the key is rotated to IGN 1 and/or CRANK and should remain the same each time the key is rotated. Test the Black wire, pin D at the ignition switch for 12v with key on, then close to 0 volts when in the crank position.
I do work all day tomorrow. You can always rate my answer now for assisting you and then reply back with the results. I get off of work at 7pm eastern time tomorrow.