Cadillac XLR P0523: Meaning, Causes, + Likely Fixes

P0523 is a standard OBD2 trouble code that can occur in the Cadillac XLR. In layman’s terms, it indicates the signal from the oil pressure sensor is higher than its normal operating range (in terms of voltage). P0523 is generic (it has the same definition for all vehicles), repair steps will depend on your XLR’s … Read more

Cadillac XLR P0705: Meaning, Causes, & Diagnosis

P0705 is a very common transmission-related trouble code that can occur in the Cadillac XLR. In layman’s terms, it means that your XLR can’t tell what gear you’ve selected, which can have some real consequences on how it drives. It’s most likely caused by a bad Transmission Range Sensor (TRS), but there are other causes … Read more

Cadillac XLR P015D: Meaning, Causes, & Diagnosis

P015D is a generic trouble code, which means that it has the same definition for the Cadillac XLR as it would any other vehicle. The code indicates that the Oxygen (O2) sensor on bank 2 is not cycling from lean to rich as fast as it should be. P015D is usually caused by a bad … Read more

Cadillac XLR P015B: Meaning, Causes, & Diagnosis

P015B is a generic trouble code, which means it has the same meaning any vehicle. In the case of the Cadillac XLR, It indicates that the Oxygen (O2) sensor on bank 1 is not cycling from lean to rich as fast as it should be. P015B is usually caused by a bad oxygen sensor, but … Read more

Cadillac XLR: DRL Warning Light On – Causes + Fix

Daytime running lights (or DRL) are specialized lights that come on when your Cadillac XLR’s regular headlights are turned off. Their purpose is to make it easier for other drivers to see you, theoretically decreasing the odds of getting into an accident. If your XLR’s DRL warning light is on, the powertrain control module (commonly … Read more

Cadillac XLR P2271: Meaning, Causes, + Diagnosis

P2271 is a generic DTC trouble code that can affect the Cadillac XLR. It indicates that the oxygen sensor located on bank 1 in the second position is continuously sending voltage with a value that is too rich. There are oxygen sensors on both sides of the catalytic converter. The “upstream” one is used for … Read more

Cadillac XLR P2279 Code: Meaning, Causes, and Diagnosis

P2279 is a generic OBD-II code. It indicates there is a vacuum leak coming from your Cadillac XLR’s air intake system. While P2279 is a generic code (it has the same definition for the XLR as it would any other vehicle made after 1996), repair steps will vary based on model year and engine. The … Read more

Cadillac XLR P0605: Meaning, Causes, + Fix

P0605 is a relatively rare OBD-II trouble code that can occur in the Cadillac XLR. It indicates that PCM (powertrain control module) is not passing its ROM (read-only memory) self-test when you turn the ignition on. While P0605 is a generic code (it has the same meaning for any car or truck), it is most … Read more

Cadillac XLR P0116: Meaning, Causes, + Diagnosis

P0116 indicates that your Cadillac XLR’s engine coolant temperature sensor is sending a signal to the PCM (powertrain control module) that is outside of its normal operating range (in terms of voltage). While P0116 is a generic OBD2 code (it has the same definition for any car or truck), it has the same basic causes … Read more

Cadillac XLR P0117 Code: Meaning, Causes, and Diagnosis

P0117 is a generic OBD2 code.  It indicates that your Cadillac XLR’s PCM (powertrain control module) has detected the signal coming from the engine coolant temp (ECT) sensor has a voltage level below its normal operating range. With the ECT sensor, as the voltage level drops, it will appear that your XLR is overheating. While … Read more