Cadillac STS P0332: Knock Sensor 2 → Low input (Bank 2)

P0332 is a powertrain related OBD-II trouble code. It has the same meaning for the Cadillac STS as it would any other vehicle. By definition, P0332 means that the vehicles ECM/PCM is getting a signal that is lower than the defined operational range from the knock sensor (Sensor 2 | Bank 2). Clearing this code … Read more

Cadillac STS P0327: Knock Sensor → Low input

  P0327 is a powertrain related OBD-II trouble code. It has the same meaning for the Cadillac STS as it would any other vehicle. By definition, P0327 means that the vehicles ECM/PCM is getting a signal that is lower than the defined operational range. Clearing this code typically requires a new knock sensor or correcting … Read more

Cadillac STS: Door Ajar Warning Stays On

  Your Cadillac STS’s door ajar message can help you get a door all the way closed when you otherwise wouldn’t notice when it was open.  Over the life of the vehicle, it is possible for the door ajar warning to stay on even when the doors are, in fact, not ajar.   The door … Read more

Cadillac STS Transmission Overheating: Causes and Diagnosis

Transmissions are an integral part of any vehicle, and overheating can lead to costly repairs or even permanent damage. Cadillac STS owners should be aware of the common symptoms and causes of transmission overheating to prevent potential issues and ensure their trucks remain strong and reliable. In this article, we will discuss the common causes … Read more

Cadillac STS: SRS On Diagnosis

  When you start your Cadillac STS, 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

Cadillac STS P1682: Ignition 1 Switch → Circuit 2

  P1682 is a diagnostic trouble code that indicates that your Cadillac STS’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

Cadillac STS Radiator Leak: Symptoms, Causes, Fix

The radiator in a Cadillac STS can leak for several reasons, and if not addressed quickly, it can cause severe and costly engine damage. An overheating engine can result from a leaking radiator, possibly leading to a damaged head gasket or cracked head. Identifying the symptoms of a radiator leak in your STS will help … Read more

Cadillac STS Leaking Heater Core Diagnosis

One of the most common problems that can happen to a vehicle is a heater core leak.  If your Cadillac STS 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

Cadillac STS Bad Starter → Symptoms & Diagnosis

  One of the most common problems that can occur in the life of a vehicle is a bad starter, that includes the Cadillac STS.  It is important to determine whether or not it’s a bad starter that is keeping the vehicle from turning over. If your STS is not starting, don’t assume right away … Read more

Cadillac STS: P0720 → OSS Circuit → Malfunction

P0720 is a generic OBD II trouble code, which means that it has the same meaning for your Cadillac STS as it would any other vehicle.  It indicates that your STS’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