Chevy Silverado P0725 Code: Meaning, Causes, + Diagnosis

P0725 is a common OBD2 code that can occur in the Chevy Silverado. It indicates an issue with the engine speed sensor input circuit (which measures the engine speed at the input shaft and helps the PCM determine when and how hard to shift the transmission). It’s a generic code, which means it has the … Read more

Chevy Silverado P0193: Symptoms, Causes, & Likely Fixes

P0193 is a generic OBD-II code that can occur in the Chevy Silverado. It indicates that your Silverado’s fuel rail pressure sensor is sending a signal to the PCM that is above its normal operating range (in terms of voltage value). While P0193 is a generic code (it has the same meaning for any vehicle … Read more

Chevy Silverado C0040: Meaning, Causes, + Likely Fix

C0040 is a chassis trouble code that occurs in the Chevy Silverado. GM designated C0040 to indicate an issue with the right front wheel speed sensor. Replacing your Silverado’s right front wheel speed sensor is the most common repair for C0040, but it’s not the only one. Wiring harness issues are common with this code. … Read more

Chevy Silverado C0035: Causes, Diagnosis, + Likely Fix

C0035 is a manufacturer-specific chassis trouble code that can occur in the Chevy Silverado. GM designated C0035 to indicate an issue with the left front wheel speed sensor. Replacing your Silverado’s left front wheel speed sensor is the most common fix for C0035, but it’s not the only one. C0035 Definition C0035: Left Front Wheel … Read more

Chevy Silverado P0523: Meaning, Causes, + Likely Fixes

P0523 is a standard OBD2 trouble code that can occur in the Chevy Silverado. 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 Silverado’s … Read more

Chevy Silverado: Engine Power Reduced

Many late model GM-made vehicles, such as the Chevy Silverado use an “Engine Power Reduced” mode when they detect a potentially catastrophic problem. Reduced engine power has been known to come on at very inopportune times (such as while driving on the highway). Many components can cause the engine power to be reduced. The most … Read more

Chevy Silverado P0705: Meaning, Causes, & Diagnosis

P0705 is a very common transmission-related trouble code that can occur in the Chevy Silverado. In layman’s terms, it means that your Silverado 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

Chevy Silverado: DRL Warning Light On – Causes + Fix

Daytime running lights (or DRL) are specialized lights that come on when your Chevy Silverado’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 Silverado’s DRL warning light is on, the powertrain control module (commonly … Read more