Close
Car Questions
RepairPal is your advocate for car care advice and guidance

No lights on but code 1633 comes up so it won't pass inspection

(2003 Ford Taurus)
in Lodi, NY on March 09, 2015
Displaying 1 answer & 0 comments
Popular Answer
The definition to this code is - Keep alive power to the PCM (Powertrain Control Module) has been interrupted. First thing to do would be check all the fuses,(It is common for the fuse for A/C compressor to be bad because of a faulty compressor, this fuse is shared by the PCM.) if all are ok then you would have to check your powers and grounds to the PCM, if all that is ok most likely cause would be a internal faulty PCM. If replaced would need to be programmed
Sign in to reply
Get a repair estimate
RepairPal estimates are guaranteed at over 2,000 quality certified locations nationwide.
Or interested in getting a repair? Find a Shop

Similar Questions

View answers to similar questions from RepairPal's community of auto experts and enthusiasts.
What type of rear braking system do i have dic or drum
The car starts fine no problems nor indications of issues until it reaches normal operating temp then it jus dies out...
Didn't find what you were looking for?