All lights flashing and scan failed - Epson STYLUS CX3900 All-In-One InkJet Printer

check engine light on means theres a problem and should be checked, flashing means a severe problem, stop driving and have checked. It will take a scan tool or code reader to find the problem areas. Since it happens at cruise its possible the cat is failing or an oxygen sensor failing.

the oD lamp doing that means scan me. on all cars..... use any scan tool of 1996 or newer. if not ,use the flash codes... ask.
no year stated! and FAILS
older post.

scan it yet.
when failed it will show what failed.

That is indicating that a part has failed and you need to scan it and retrieve code which will point you in right direction for repair. Most autoparts stores will scan for free now, and usually have part and instruction to do the job yourself.

CHANGE SPARK PLUGS AND WIRES .AND AIR FILTER.IF YOU SEE CHECK ENGINE LIGHT FLASHING ON.CODE SCAN SEE WHAT FAULT CODE YOU ARE GETTING.

if o/d light flashes it means you have a transmission code, get it scanned somewhere. autozone and advance are free. then repost your findings

Yes. the flashing light means you have a DTC fault code present. Youe need to have a dealer scan for the code and it will tell you what the issue is. Report back.
I would have the transmission fluid serviced, filter & flush. About $125 & about 1/2 hour to scan for the DTC code.

Many thing can cause this problem, the first step is to scan the computer to see why engine light is on, there will be codes stored, these codes will tell you what part of the system is failing, there are many autopart stores that will scan the engine light at no charge , if you get the codes i can help you further, hope this is helpful.

need to have car scanned occasional blinking trouble light usually indicate that something is failing [pending] ur cars computer stores the problem as a pending code some auto stores such as auto zone /advanced auto scan for free the code can give u a start point towards solving or preventing a bigger problem

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