Check U1149 Fault Code

When you check engine light came on code U1149 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 U1149 OBD-II Diagnostic Network (U) Trouble Code. So you should chech it on our car models.

U1149 Code Reason

U1149 DTC specifically refers to the camshaft (cam) timing. In this case, if the cam timing is over-retarded, the engine light will be illluminated and the code will be set.

U1149 Possible Fix :

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.

U1149 OBD-II Diagnostic Network (U) Trouble Code Description

U1149 SCP (J1850) Invalid or Missing Data for Audio Control so you have to check ODB-II Fault Code Check list.

Reason For U1149 Code

The reason of U1149 OBD-II Fault Code Check is U1149 SCP (J1850) Invalid or Missing Data for Audio Control.

U1149 Solution:

Excessive air inflow can be caused by a vacuum leak, a dirty sensor or, an exhaust gas recirculation valve not closing properly. If the problem is not enough fuel, the culprit may be dirty injectors or fuel filters, a weak fuel pump or a leaky fuel pressure regulator. The lean fuel mix error may be accompanied by rough idling, engine misfires, hesitation during acceleration and overall poor engine performance.

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