How do you reset the check engine light on a 1991 mercedes Benz 560 Sel
Have vehicle scanned to determine the problem
Disconnect the battery for about 1 min.
reset the brakelamp light on the dashboard - Honda prelude 1991
remove battery cable for 1 min
try disconecting the battery or pulling the ECM fuse
Disconnect the negative battery cable for 10 seconds.
Have vehicle scanned to determine the problem usually in the emission control system
Disconnect the negative battery cable from the battery, wait a few minutes then reconnect it. But, if the reason the light came on isn't fixed, the light will only come back on again.
The 1991 Volvo brake light relay switch is located beneath the drivers side dashboard. The brake light relay switch will be above the brake pedal.
for engine light, easy way is disconnect the battery cable for 5 minutes then reconnect.or have a shop do it for you. if your talking about a maintenance light to reset. turn key to run, engine off. pump the gas pedal 3-5 times slowly,the light turns off.
To reset the service CCR light on a 1991 Eldorado, disconnect the battery for 10 minutes. Reconnect it and start the car.