When you start your Chevy Trailblazer, the OBD-II system runs a self diagnostic check on all major systems. If any of these checks fail, you will see a diagnostic warning light on the dash for the corresponding system. When the SRS system fails this check, you’ll see the SRS light. SRS stands for supplemental … Read more
P1682 is a diagnostic trouble code that indicates that your Chevy Trailblazer’s ignition switch is having a voltage problem. It is typically caused by a faulty ignition switch, although there can be other causes as well. There are two “circuits” to the ignition switch. The first one goes to the ECM through the throttle … Read more
A radiator leak in a Chevy Trailblazer can lead to costly engine damage if not addressed quickly. Overheating caused by a leaking radiator can cause serious, long-term damage, such as a damaged head gasket or a cracked head. It is important to address a radiator leak in a Chevy Trailblazer as soon as possible to … Read more
One of the most common problems that can happen to a vehicle is a heater core leak. If your Chevy Trailblazer has a leaking heater core, it is not a breakdown risk. Although, it is necessary to make sure that the lost coolant is replaced. It can cause damage to the vehicle in other ways, … Read more
One of the most common problems that can occur in the life of a vehicle is a bad starter, that includes the Chevy Trailblazer. It is important to determine whether or not it’s a bad starter that is keeping the vehicle from turning over. If your Trailblazer is not starting, don’t assume right away … Read more
P0720 is a generic OBD II trouble code, which means that it has the same meaning for your Chevy Trailblazer as it would any other vehicle. It indicates that your Trailblazer’s OSS (Output Shaft Speed Sensor) is reporting a malfunction. It’s typically caused by a bad OSS, or a wiring problem. The OSS works by … Read more
P0520 is a common OBD2 trouble code. It’s generic, which means that it has the same meaning for the Chevy Trailblazer as it would any other vehicle. P0520 indicates that the oil pressure sensor is operating outside of its normal “range”. It is typically caused by a bad oil pressure sensor switch or a … Read more
P0108 is a generic OBD-II trouble code. It indicates your Chevy Trailblazer’s MAP (manifold absolute pressure) sensor’s voltage reading is outside of the normal operating range. The voltage is too high. It’s most commonly caused by a bad MAP sensor, wiring issue, or vacuum leak. The MAP sensor measures the air pressure coming into … Read more
P0443 is a very common OBD2 code. It’s generic, meaning it has the same definition for the Chevy Trailblazer as any other vehicle. If your Trailblazer has this code, it indicates the EVAP purge control valve circuit is malfunctioning. This is typically caused by a short in the wiring to or from the purge … Read more
P0521 is an OBD2 diagnostic code that is triggered when your Chevy Trailblazer detects that the value being sent from the oil pressure sensor is out of its normal operating range. It is typically caused by a bad oil pressure sensor or an issue with the oil system, and should be diagnosed and fixed right … Read more