U1504 Diagnostic Trouble Code U1504 is a kind of OBDII Diagnostic UNetwork Diagnostic Trouble Code It is considered generic because it applies to all makes and models of vehicles, although specific repair steps may be different depending on your car modelThe check engine light/service engine soon (yellow light) comes only when the computer control unit (called the PCM) senses a fault in the electronic controls of the engine and/or the emission system u will seldom feel the car engine run any different, there are about 0 possible faults that turn the light on, to know what has developed a problem you must have the system tested, this isUsing scan tool MB, read the diagnostic trouble code (DTC) (1)Turn the ignition switch to the "ON" position (2)Read the DTC (3)Turn the ignition switch to the "LOCK" (OFF) position Q Is DTC P1590 set?
Code No U1504 Lighting Control Sensor Lin Timeout Vehicles With Auto Lamp
