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1999 Bmw 120 U1109 Fault Code Check

When you check 1999 Bmw 120 car engine light came on code U1109 the reason should be Engine Light ON (or Service Engine Soon Warning Light). However Bmw manufacturer may have a different definition for the U1109 OBD-II Diagnostic Network (U) Trouble Code. So you should chech it on our car models.

U1109 1999 1999 Bmw 120 Code Clear

To solve U1109 1999 1999 Bmw 120 problem, you'll have to remove the muffler, crankcase and other components blocking the valve chamber. Then, remove the cylinder head bolts (label for easy re-installation) Adjust the jaws of the valve spring compressor until they touch the top and bottom of the valve chamber Push the tool in to compress the spring and tighten the jaws Remove the retainers and lift out the valves , compressors and springs

1999 Bmw 120 U1109 OBD-II Diagnostic Network (U) Trouble Code Description

U1109 SCP (J1850) Invalid or Missing Data for Electric Traction Drive (Inverter) so you have to check ODB-II Fault Code Check list.

Reason For 1999 Bmw 120 U1109 Code

The reason of 1999 Bmw 120 U1109 OBD-II Fault Code Check is U1109 SCP (J1850) Invalid or Missing Data for Electric Traction Drive (Inverter).
U1109 Code Reason

1999 Bmw 120 U1109 Possibble Fix Ways :

The most likely cause of this is that there is no refrigerant left in your system. This could be caused by a leak in your system somewhere, which will have to be fixed before refilling the refrigerant. If you're car-savvy and you own a set of air conditioning gauges, refilling the refrigerant is usually easy to do yourself. However, if you're not so confident, enlist the help of a knowledgeable friend or take a quick trip to the mechanic.

There are currently two main types of cylinder deactivation used today, depending on the type of engine. U1109 1999 1999 Bmw 120 code for the pushrod design which uses solenoids to alter the oil pressure delivered to the lifters. In their collapsed state, the lifters are unable to elevate their companion pushrods under the valve rocker arms, resulting in valves that cannot be actuated and remain closed.

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