Volvo S60 2001 warning light, Engine System Service Required comes on. Just had a tune up at 78,000 but not @ Volvo. How do I turn off the light.

Hello, Phillip -

Apparently the lit lamda warning light means there is a problem with the emissions system, indicating that the engine management system is no longer able to control the fuel mixture. It means you need to take your Volvo in for service.

Source:
https://www.justanswer.com/volvo/1mf9k-volvo-s40-warning-light-keeps-coming-looks.html

Best wishes.

The code was stored in the history part of the ECM. Don't ignore this. Usually when you can turn the key off and the light goes away. It is a transmission problem. Could be a simple transmission service. Could be more..

check for alternator and starter motor functioning ok , does it turn over and not fire up or not turn over at all?

my volvo car dose want to start when i want to switch on the say( ANTI-SKID TEMPORARILY OFF) and all light right hand said coming red and left hand said coming yello.

How many miles on your vehicle, sounds like its time to go in for a graduated mileage check that is built into your computer, this feature helps you keep the proper maintenance up on your vehicle. Oil changes, belts, etc.

What really happens is your service check indicator light switches itself on due to completion of 10,000 or 5,000 Km (depending on the manufacturer's specs) from your previous oil change or service. The internal clock keeps track of your mileage travelled and let you know when the 10,000 or 5,000 km is up. All that is required is to RESET the service indicator light. On some cars, the resetting of the service light can be done by the car owner which normally involves pressing a button at the front Instrument Panel and so on and so forth. If you have the user manual for your car, I suggest you read it to see if there is anything on resetting the service light.
The bad news is not all vehicle manufacturers have a reset button at the front dashboard, and some requires the use of a Diagnostic Scanner to do this. Ask your mechanic if you are not sure.
The speed is cut down to 60 is due to the fact that if you continue to drive your car after the prescribed mileage without changing the engine oil, there will be 'accelerated' wear and tear to your engine and perhaps even an early engine overhaul. Driving with a long overdue engine oil change is bad but driving it at speed would be worst. I believe you get the drift.
As for your mot test, it is mandatory that no warning light whatsoever should appear at the instrument panel but yours showed up.

According to the manual, that warning light will illuminate if a fault is detected. Normally, the SRS warning lamp should light up when the ignition key is turned to positions I, II or III and should
go out after 7 seconds or when the engine is started.

· If the SRS (Supplemental Restraint System) warning light stays on after the engine has started or if it comes on while you are driving,
drive the car to the nearest authorized Volvo retailer for inspection as soon as possible.

Hope this helps.

WHAT HAPPENED IS WHEN YOU SHUT DOWN AND RESTARTED YOU (RESET THE ENGINE MANAGEMENT COMPUTER) AND THE SERVICE LIGHT SHOULD GO OUT AFTER 10 MINUTES OF DRIVING

There is a problem, it needs to go to a factory service center, it can be any one of multiple reasons that turns this light on.

you have a emission related code not a tune up /read the codes by volvo only then update your ?