P0135 is a very common OBDII code that occurs in the Ford C-Max. It is caused by a failure in one of the oxygen sensors heated elements, specifically bank 1 sensor 1. It technically stands for: P0135: Heated Oxygen Sensor → Sensor Heater Circuit Malfunction → Bank 1, Sensor 1 The purpose of the heated … Read more
P0121 is a somewhat common trouble code with the Ford C-Max. It’s an OBDII code and has to do with the Throttle Pedal Position Sensor. It is relatively serious problem since it leaves your vehicle in failsafe mode. P0121: Throttle Pedal Position Sensor → Switch (TPS) A Circuit Range → Performance Problem OBDII code P0121 … Read more
P0401 is a very common OBDII trouble code that’ll pop up in the Ford C-Max. It has to do with the emissions system and stands for Exhaust Gas Recirculation (EGR)→ Insufficient Flow. The EGR system in your van is responsible for recirculating exhaust gasses in order to lower the vehicle’s emissions output. There are three … Read more
One of the most common trouble codes with the Ford C-Max is the P0496 code. This code number references a number that is given to you when you plug your C-Max into an OBDII scanner. Below, you’ll find the most common symptoms and ways to diagnose the P0496 in your Ford C-Max. Good Luck! Ford … Read more
The P0440 code is a common trouble code that many Ford C-Max owners may encounter. It indicates that there is an issue with the van’s Evaporative Emission Control (EVAP) system. Specifically, the EVAP system is malfunctioning. A variety of causes can trigger the P0440 code, with the most common one being a loose or damaged … Read more
A somewhat common issue with the Ford C-Max is the P0449 code. This code references a number that is given to you when you plug your C-Max into a OBD2 scanner. P0449 deals with the evaporative emissions control (EVAP) system. It often appears with, or is related other codes, such as P0420, P0446, and very … Read more
One of the most common issues that happens with the Ford C-Max is the P0442 trouble code. This code appears when connecting the vehicle to an OBDII scanner and pertains to the emissions system. While it’s unlikely to cause a breakdown, it can be bothersome and may result in a failed emissions test for your … Read more
If your Ford C-Max has the P0304 trouble code, you should know that it’s about as common of a code as there is. It’s a generic OBD IIcode (same meaning for all vehicles) that indicates that your van’s fourth cylinder is misfiring. P0304 is a drivability concern and should be dealt with right away. If … Read more
P0455 in the Ford C-Max is a trouble code that indicates your truck has a LARGE evaporative emissions leak. With this code, you shouldn’t notice any symptoms besides perhaps a noticeable fuel smell. P0455 usually is not an immediate threat to the driveability of your C-Max. But, whenever the check engine light is on, it’s … Read more
This page is meant to help you troubleshoot the Ford C-Max P0430 trouble code. It covers the P0430 code’s meaning, symptoms, causes, and possible solutions. P0430 is an emissions-related trouble code and is virtually never a breakdown risk. P0430 is usually caused by a catalytic converter issue or a bad O2 sensor. Table of Contents … Read more