Buick Lucerne P0030: Meaning, Causes + Diagnosis

P0030 is a very common OBD2 trouble code. It’s generic, which means it has the same definition for the Buick Lucerne as any other vehicle. This code is almost always caused by a bad heated oxygen sensor or wiring issue. P0030 Definition: Heater Control – Circuit – B1S1 P0030 indicates no signal coming from your … Read more

Buick Lucerne P0730:  Meaning, Causes + Diagnosis

P0730 is a standard OBD2 trouble code. It indicates that your Buick Lucerne’s PCM has detected an incorrect gear ratio. While this code can appear if you changed your Lucerne’s transmission or rear end gearing without re-flashing the computer, it almost always has nothing to do with an incorrect gear ratio. An internal transmission problem … Read more

Buick Lucerne P0871: Transmission Fluid Pressure Sensor/Switch “C” Range/Performance

P0871 is a somewhat rare diagnostic trouble code.  While your Buick Lucerne’s check engine light will come on, this particular code indicates that there’s something wrong with the transmission, specifically the transmission fluid pressure sensor switch “C”. It’s a generic code, so P0871 has the same definition for any vehicle made for the 1996 model … Read more

Buick Lucerne P0480: Meaning, Causes & Diagnosis

P0480 is a relatively common OBDII trouble code.  It indicates that your Buick Lucerne’s “cooling fan 1 control circuit” is malfunctioning.  It’s a generic code, so it has the same meaning for any vehicle made for the 1996 model year and up.   P0480 Definition:  Cooling Fan 1 – Control Circuit Malfunction Here is the … Read more

Buick Lucerne P0320: Meaning, Causes, & Diagnosis

P0320 is a relatively common ignition-related trouble code. P0320 indicates that your Buick Lucerne’s ignition/distributor engine speed circuit is malfunctioning. P0320 is most likely caused by the engine speed sensor, or a wiring issue. P0320 Definition:  Ignition/Distributor Engine Speed – Input Circuit Nearly all modern vehicles, including the Buick Lucerne, use individual coil packs which … Read more

Buick Lucerne: P0717 Meaning, Causes, & Diagnosis

P0717 is a somewhat rare OBD2 trouble code that can occur in the Buick Lucerne.  While it illuminates the check engine light, the code warns of a transmission-related error, specifically that the input shaft/turbine speed sensor is not sending a signal. P0717 is a generic code (it has the same meaning for any vehicle made … Read more

Buick Lucerne P0846: Meaning, Causes, + Diagnosis

P0846 is a relatively common trouble code.  While your Buick Lucerne’s check engine light will come on, P0846 is a transmission-related trouble code, specifically the transmission fluid pressure sensor circuit. It’s a generic code, so P0846 has the same definition for any vehicle made for the 1996 model year and up.  Before doing anything, check … Read more

Buick Lucerne P0841: Meaning, Causes, + Diagnosis

P0841 is a relatively common trouble code.  While your Buick Lucerne’s check engine light will come on, this particular code indicates that there’s something wrong with the transmission, specifically the transmission fluid pressure sensor circuit. It’s a generic code, so P0841 has the same definition for any vehicle made for the 1996 model year and … Read more

Buick Lucerne P0894: Meaning, Causes, & Diagnosis

P0894 is a somewhat common DTC trouble code.  It indicates that your Buick Lucerne’s transmission may be slipping.  It does not specify what part of the transmission is the problem. While P0894 is a general diagnostic trouble code (same definition for the Lucerne as any other vehicle), it is far and away most common on … Read more

Buick Lucerne P0882:  Meaning, Causes + Diagnosis

P0882 is a generic DTC trouble code, which means it has the same meaning for the Buick Lucerne as it would any other vehicle.  While this code sets the check engine light, it is actually warning you of an issue with the TCM transmission control module, specifically that the power input signal is too low. … Read more