C257D Mitsubishi 380 OBD Code

OBD/2 C257D error code description and symptoms.

Engine Coolant Temperature (ECT) Circuit High Input Indicates the sensor signal is greater than Self-Test maximum. The ECT sensor maximum is 4.6 volts or -50 C (-58 F). Note on some vehicles that are not equipped with an ECT sensor, CHT can be used and can set this DTC. Open circuit in harness Sensor signal short to power Damaged PCM Improper harness connection Damaged sensor ECT V PID reading greater than 4.6 volts with key ON and engine OFF or during any engine operating mode indicates a hard fault.

Gear changes are accomplished by a command from the TCM to energize the clutch actuator to release the clutch; after which various actuators inside the transmission disengage the current gear, and depending on current operating conditions, engage the next higher or lower gear ratio. All of this happens much faster than a human driver could change gears, and in most applications, gear changes are as smooth and seamless as on any fully automatic transmission.

C257D Mitsubishi 380 Error Code Repair Process :

The rule of C257D code when it comes to emissions-related vehicle repair is that any modification that changes the vehicle from a certified configuration to a non-certified configuration is considered tampering: this applies to both vehicle owners and repair facilities and is, therefore, a Federal offense. Replacing a catalyst with a straight pipe is one traditional example of fuel temperature sensor #1 circuit open. Likewise, overriding the OBD C257D error in system through the use of high-tech defeat devices or non-certified computer chips, for example, would also be considered tampering. The OBD system may, however, be repaired back to its original certified configuration with certified performance chips or appropriate aftermarket parts.

Common Causes of Mitsubishi 380 C257D OBD2 Code

A common cause of code C257D is the failure of Fuel Temperature Sensor #1 Circuit Open, but there are several other possible causes as well, such as ;

Engine Control Module (ECM)
Engine Control Module (ECM)
Fuel injectors may be faulty
Faulty TCM or TCM programming

C257D is a kind of Chassis Trouble Code

Diagnosing chassis noises can be one of the most frustrating problems technicians face. Fortunately, manufacturers have engineered noise, vibration and harshness (NVH) diagnostic techniques and equipment to find the source of the noise.

Engine OBD 2 Codes website is a freeware resource center for engine trouble codes.

About Us | Contact | Privacy

C257D Mitsubishi 380 OBD Code

C257D Mitsubishi 380 Error Code Repair Process :

Common Causes of Mitsubishi 380 C257D OBD2 Code

C257D code for other Mitsubishi cars