Lost all power to vehicle driving home. One battery cable is very corroded. Could it be the battery or is it the alternator?

SOURCE: 2004 1500 Dodge Ram Check engine light on

U0155 definition is lost communication with the ipc control mod , (instrument panel cluster) , reasons include faulty IPC , loose / bad connections at IPC , i read some forums and and some found connection issues at fuse box , when the problem exists you could try wiggling wires at behind fuse box or the back of the IPC try to locate source if indeed it is a connection issue .

good luck.

SOURCE: Lost Dash lights and taillights 1999 Durango

check for blown fuse they run off same fuse.

SOURCE: miss and dash lights go crazy

I have seen this before in my own Town & Country.  It was an electrical problem.  This can either be a bad battery or a problem with your alternator and voltage regulator.  I would lean toward the alternator if you have enough power to start the engine but then it runs poorly and gauges and lights go crazy.

SOURCE: 1996 Dodge caravan--dash guages flicker

In responding to rbenjami, I am not proposing the same solution for all who claim to have a similar problem because I don't believe that that is the case. When the gauges flicker periodically it may be a case of a bad body computer, which is a big deal and may be covered by warranty beyond the normal 3 yr./36k miles. For those with issues related to use of seat warmers, that is not uncommon and should lead to discontinued use.

SOURCE: head lights and dash lights flickering on and off while driving

just replaced headlight switch and took care of problem