Few warning lights comes on while turning the key step by step for toyota corolla 2003 uk.but they go off when engine turns on.are these lights showing some problems or is it normal thing.i think these lights or diagrams are for.oil low warning light,abs,engine symbol,etc

That is not a valid OBD code.

sounds like the water is the culprit I think you should check your coil boots and spark plugs reset the computer by turning on the key to on position take off negative terminal on the battery leave it off for 2 minutes put it back on and the light should go out do you have a code reader it should tell you the code for your problem

follow this steps.God bless you
When you turn the ignition ON before starting the car, the "Check engine" light is supposed to come on indicating that the engine computer (also could be called ECM, PCM, or ECU) is powered on. If the "Check engine" light does not come with the ignition ON, it's possible that there is no power coming to the engine computer (e.g., due to a broken wire, faulty main relay, burnt fuse, etc.) or that there is a problem with the engine computer itself.

It means your car needs an oil change, based on mileage. If you take your car to get the oil changed, they can reset the light for you. If you want the light off now, try holding in the odometer reset button, with the key on but engine off, until little dashes appear then one by one dissapear. This procedure may need to be done either on the odometer total mileage or trip A mileage or trip B mileage.

Step 1: Have car off.

Step 2: Push and hold in trip reset button.

Step 3: While still holding button in, turn key to ON, but engine off. Wait for the little dashes to appear and disapear. If it doesn't work on the odometer setting. before turning key off, switch to Trip A setting. If the procedure doesn't work on the odometer setting or Trip A, try Trip B setting.

Step 4: Turn key off. Then start car. Maint. required light should be off.

Get in the car, make sure your dome light is set to door-operation.
Close all the doors, does the dome light go out?
If so, it's not the door ajar chime. If not, one of your door pin switches is defective.
Buckle your seatbelt, does the seatbelt warning light on the dash go out?
If so, it's not the seatbelt alarm. If not, it's the seatbelt buckle receiver.
The light warning works with the key off, so it is not that since turning the car off would not stop it.
Last thing it could be is the ignition key alarm.
I have seen a few malfunction over the years.

beeps are warning signs. check: switch lights, seat belts, doors, engine hood, trunk.

tire pressure.

you need a scanner to turn off light . take scanner to read code. you got a bad sensor thats why check engine light comes on. its not going to turn off until you fix it. the light is warning you.something is wrong.

Have you had your air filter changed or checked recently? If you've had it done somewhere other than the dealership that could be your issue. There is a sensor that connects to the enclosure around the air filter. If it is not correctly reattached after service it will cause the check engine light to come on.
Even if you do discover the issue and correct it, the check engine light will persist for server times you turn the engine on and off but usually by the 3-4th day it will turn off on its own. If you think it's mote serious, take it back in for service.
I can't tell you how many times I've taken my Highlander in for service at a non- Toyota dealer (bc I travel for work) and the check engine light comes on bc they check the air filter and neglect to reattach the sensor. Hope this helps.

Try the following:
1. Make sure the odometer is shown (not trip meters). Turn key to the Off position. 2. Press the odometer button AND turn the ignition key to the ON position for a few seconds. 3. You will hear a �ding� and the odometer will show four or five underscores to indicate the reset is done.