P0601 is a somewhat rare OBD2 trouble code. It’s a generic code (it has the same meaning for the Mercury Mariner as it would any other vehicle). While it indicates that the PCM’s memory failed a memory check, P0601 is commonly seen when people use OBD2 port plugin accessories on their vehicle. These accessories are … Read more
P0846 is a relatively common trouble code. While your Mercury Mariner’s check engine light will come on, P0846 is a transmission-related trouble code, specifically the transmission fluid pressure sensor circuit. It’s a generic code, so P0846 has the same definition for any vehicle made for the 1996 model year and up. Before doing anything, check … Read more
P0841 is a relatively common trouble code. While your Mercury Mariner’s check engine light will come on, this particular code indicates that there’s something wrong with the transmission, specifically the transmission fluid pressure sensor circuit. It’s a generic code, so P0841 has the same definition for any vehicle made for the 1996 model year and … Read more
P0882 is a generic DTC trouble code, which means it has the same meaning for the Mercury Mariner as it would any other vehicle. While this code sets the check engine light, it is actually warning you of an issue with the TCM transmission control module, specifically that the power input signal is too low. … Read more
P0868 is a generic DTC code, which means it has the same definition for the Mercury Mariner as it would any other vehicle. This particular code indicates that the transmission fluid pressure is below the minimum operating specs. If your Mariner has P0868 the first thing you should do is check the transmission fluid. If … Read more
P0715 is a generic, and somewhat rare OBDII trouble code. If your Mercury Mariner has P0715, it indicates there is a communication error with the sensor that measures transmission input speed. Common Causes: A bad transmission speed sensor, shift solenoid, wiring issues, and even low/no transmission fluid can all cause P0715. P0715 Definition: Input/Turbine Speed … Read more
P0688 is a relatively rare OBD2 trouble code. It’s a generic code, meaning that it has the same definition for any vehicle made for the 1996 model year and up. This includes the Mercury Mariner. The most common causes of P0688 are a bad PCM power relay or a wiring issue between the PCM and … Read more
P0685 is a somewhat rare OBDII trouble code. It’s a general code, so it has the same meaning for the Mercury Mariner as any other vehicle. It indicates that the circuit that provides power to the PCM is not functioning properly. Most of the time, P0685 will cause your Mariner not to start, which leaves … Read more
P0661 is a relatively rare OBD2 trouble code. It indicates that the electrical reading coming from your Mercury Mariner’s intake manifold tuning valve control circuit (on the bank 1 side) is below its specified operating range. While P0661 is a generic code, so it has the same definition for all vehicles. P0661 Definition: Intake Manifold … Read more
P0660 is a somewhat common OBDII code. It’s generic, so it has the same meaning for the Mercury Mariner as it would any other vehicle made for the 1996 model year and up. This code indicates that there is an issue with the bank 1 side of the intake manifold valve tuning control circuit. Common … Read more