McLaren failed to put in a single lap on the opening day of pre-season testing due to "electrical issues" with the new MP4-29.
The Woking team was schedule to run on Tuesday with Jenson Button entrusted with the driving duties.
The Brit, though, wasn't able to put in even a single lap of the Jerez circuit as his team worked furiously on the car.
"Today was a challenging start to the MP4-29's test and development programme," McLaren said in a statement. "Along with other teams, we faced difficulties readying our new car for the first winter test of 2014.
"Despite firing up successfully at the MTC last week, the car was predominantly affected by electrical issues during the day.
"The subsequent dismantling, inspection and re-installation of several major components ultimately meant we were unable to conduct any running today.
"We're re-installing key systems on the car overnight, with the expectation that Jenson will begin the car's installation programme tomorrow."
McLaren, though, weren't the only team running into trouble.
Red Bull and Williams only ventured out late in the day as did Caterham while Marussia didn't even make it to the track.