Mechanics

DIAGNOSTIC CODES P0720, P0500, P0173, P0170 AND P0100. WHAT DO THESE MEAN?

2000 Mercedes Benz 430e • 180,000 miles

Had car diagnose and these were the codes it gave me.
Avatar
Cynthia barnety
October 29, 2011.



P0720=Electronic transmission control diagnostic trouble code memory
P0500=Vehicle speed sensor signal implausible.
P0173=Fuel trim malfunction.(Leaking intake, injectors, or pressure regulator diaphragm
P0170=Fuel trim malfunction. Same as above.
P0100=MAF circuit malfunction

Sounds like a defective computer or a loose connector.

Rivermikerat
Nov 20, 2011.