P0223 CADILLAC code

P0223 is a diagnostic trouble code (DTC) for “Throttle/pedal position switch/sensor B circuit high output“. This can happen for multiple reasons and a mechanic needs to diagnose the specific cause for this code to be triggered in your situation. What causes P0223? Fault Code Definition Code P0223 is triggered when the voltage output from the […]

P0096 CADILLAC code

P0096 is the OBD-II generic code indicating that the engine control module (ECM) has determined that the intake air temperature sensor 2 (IAT2) is not operating in the normal sensor range and the ECM cannot use the sensor output to determine intake air temperature. What is intake temperature sensor? The Intake Air Temperature (IAT) Sensor […]

P0453 CADILLAC code

A P0453 code means that a reading from the engine’s evaporative pressure sensor is higher than normal, indicating changes in pressure that are out of factory specification. How do I fix code P0453? Zitat von Youtube: Spray clean the gas tank with a wd-40 cleaner first check to see if the gas cap also gets […]

P0030 CADILLAC code

How do I fix code P0030? Zitat von Youtube: Visually check the oxygen sensors electrical connections wire harness and metal tabs for any damages. If the damages are found then replace the oxygen. Sensor. What can cause a P0030 code? What are the Possible Causes of the P0030 Code? Faulty oxygen sensor. An issue with […]


P018C is an OBD II fault code that stands for “Fuel pressure sensor “B” Circuit Low”. There are a few things that can cause this code like a bad sensor, or high or low fuel pressure. It pops up when the Power Control Module (PCM) receives an erratic signal voltage from the fuel pressure sensor. […]

P3442 CADILLAC code

If the engine’s control module (PCM) determines that the Intake Valve for cylinder number six is not Turning on or off the way it is being commanded, the PCM will set code P3442. A vehicle with this code should be taken in to a repair shop for diagnosis. What is a cylinder deactivation solenoid? When […]

P0843 CADILLAC code

P0843 is a diagnostic trouble code (DTC) for “Transmission Fluid Pressure Sensor A Circuit High“. Where is the transmission fluid pressure sensor? The pump pressure switch is located on the transmission housing next to the pump. The switch lets the computer know what the pressure is coming from the pump when the engine is running. […]

P3400 CADILLAC code

P3400 trouble code definition The P3400 diagnostic trouble code indicates that there is a performance issue with the Cylinder Deactivation System in Bank 1. What causes cylinder deactivation? Zitat von Youtube: On opposite strokes so for example say we have a four cylinder. And they want to incorporate cylinder deactivation well then one's going to […]


What Does the P015B Code Mean? Diagnostic trouble code (DTC) P015B stands for “O2 sensor Delayed Response – Lean to Rich (Bank 1, Sensor 1). It means that your vehicle’s powertrain control module (PCM) has detected a delayed response time from the upstream oxygen sensor on Bank 1. How do I fix code p015b? Zitat […]

P2123 CADILLAC code

The P2123 trouble code indicates that the Engine Control Module (ECM), which is in charge of receiving a signal from the throttle position sensor, has detected a malfunction within one of the circuits of the throttle position sensor. What causes code P2138? Diagnostic trouble code (DTC) P2138 stands for “Throttle/Pedal Position Sensor/Switch D/E Voltage Correlation.” […]