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Check U1140 Fault Code

When you check engine light came on code U1140 the reason should be Engine Light ON (or Service Engine Soon Warning Light). However your vehicle's manufacturer may have a different definition for the U1140 OBD-II Diagnostic Network (U) Trouble Code. So you should chech it on our car models.

U1140 Code Reason

Parts or components should not be replaced with reference to only a U1140 DTC. The vehicle service manual should be consulted for more information on possible causes of the fault, along with required testing.

U1140 Possible Fix :

Check your choke plate. Is it positioned correctly? Is it still working as it should? Does it open completely? If not, then you either replace it or repair it. If the damage is quite severe, I suggest you put down your repair tools and start looking around for a replacement choke plate to avoid a repeat of this nasty episode.

U1140 OBD-II Diagnostic Network (U) Trouble Code Description

U1140 SCP (J1850) Invalid or Missing Data for Gateway so you have to check ODB-II Fault Code Check list.

Reason For U1140 Code

The reason of U1140 OBD-II Fault Code Check is U1140 SCP (J1850) Invalid or Missing Data for Gateway.

U1140 Solution:

Disconnected, dirty or fouled spark plugs are common causes for engines that won't start. Spark plugs typically need to be replaced every season or 25 hours of use. You should also check that the spark plug gap is set properly. If your spark plugs look good, problems with your ignition system can also preventing a spark. These can range from a faulty spark plug lead, shorted kill switch or flywheel key damage.

What does fault code U1140 mean ?
What does a diagnostic reading U1140 mean ?
How to fix OBD2 Code U1140 ?
What do we know about U1140 code ?

How to Clear U1140 Trouble Code

An OBD 2 scanner is the best and safest way to erase a DTC from your car's system. This scanner communicates with the car's computer and instructs the computer to erase the code. It does not change or tweak the settings from inside the car or its systems.