P2271 is a generic DTC trouble code that can affect the Acura MDX. 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
P2279 is a generic OBD-II code. It indicates there is a vacuum leak coming from your Acura MDX’s air intake system. While P2279 is a generic code (it has the same definition for the MDX as it would any other vehicle made after 1996), repair steps will vary based on model year and engine. The … Read more
P0605 is a relatively rare OBD-II trouble code that can occur in the Acura MDX. 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
P0116 indicates that your Acura MDX’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
P0117 is a generic OBD2 code. It indicates that your Acura MDX’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 MDX is overheating. While … Read more
P3497 is a generic OBD2 trouble code. It indicates that your Acura MDX’s cylinder deactivation system has a performance issue on the bank 2 side (we cover what a bank is below if you don’t know). It is a very common code to see in Honda-made cars, vans, and trucks. P3497 by itself is not … Read more
P3400 is a generic OBD2 trouble code. It indicates that your Acura MDX’s cylinder deactivation system has a performance issue. It is a very common code to see in Honda-made cars, vans, and trucks. P3400 by itself is not a breakdown risk. Your MDX’s engine will run just fine on all of its cylinders. The … Read more
P0743 is a generic OBD2 code that can occur in the Acura MDX. 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 MDX’s model … Read more
P0776 is a generic OBD2 code that can occur in Acura MDX’s equipped with an automatic transmission. This code indicates that the pressure control solenoid “B” inside your MDX’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
P0400 is a standard code that indicates your Acura MDX’s EGR system is not working. The good news is that this code is not a breakdown risk and should not affect how your MDX runs (assuming it’s the ONLY code). P0400 is a generic code, which means it has the same definition for the MDX … Read more