Chevy Uplander P0523: Meaning, Causes, + Likely Fixes

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

Chevy Uplander P0705: Meaning, Causes, & Diagnosis

P0705 is a very common transmission-related trouble code that can occur in the Chevy Uplander. In layman’s terms, it means that your Uplander 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 Uplander: DRL Warning Light On – Causes + Fix

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

Chevy Uplander P2271: Meaning, Causes, + Diagnosis

P2271 is a generic DTC trouble code that can affect the Chevy Uplander. 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

Chevy Uplander P2279 Code: Meaning, Causes, and Diagnosis

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

Chevy Uplander P0605: Meaning, Causes, + Fix

P0605 is a relatively rare OBD-II trouble code that can occur in the Chevy Uplander. 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

Chevy Uplander P0116: Meaning, Causes, + Diagnosis

P0116 indicates that your Chevy Uplander’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

Chevy Uplander P0117 Code: Meaning, Causes, and Diagnosis

P0117 is a generic OBD2 code.  It indicates that your Chevy Uplander’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 Uplander is overheating. While … Read more

Chevy Uplander P0743: Meaning, Causes, + Diagnosis

P0743 is a generic OBD2 code that can occur in the Chevy Uplander. It indicates that your ECU/TCM has found an issue with the torque converter clutch solenoid. It is a generic code (meaning it has the same definition for all cars and trucks). Repair steps are going to vary depending on your Uplander’s model … Read more

Chevy Uplander P0776: Meaning, Causes, + Diagnosis

P0776 is a generic OBD2 code that can occur in Chevy Uplander’s equipped with an automatic transmission. This code indicates that the pressure control solenoid “B” inside your Uplander’s transmission is having a performance issue, or is stuck in the off position. P0776 Definition: Pressure Control Solenoid “B” – Performance/Stuck Here’s the definition of P0776, … Read more