P2138 Mazda Demio 3 OBD Code

OBD/2 P2138 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.

As the engine heats up and combustion becomes easier and more complete, the PCM will command the idling control valve to increase the amount of air entering the engine to suit the changing conditions. However, when the load on the engine changes, say, when some electrical consumers or other systems are either turned on or off, the PCM adapts the signal voltage to the idle control valve to ensure that the idling speed remains stable, and at the RPM specified by the manufacturer.

P2138 Mazda Demio 3 Error Code Repair Process :

When you turn on the ignition, the Service Engine Soon or Check Engine P2138 light should flash briefly, indicating that the OBD system is ready to scan your vehicle for any malfunctions. After this brief flash, the light should stay off while you drive as long as no problems are detected. If p2138 accelerator pedal position sensor circuit range/performance so, you'll be glad to know that your vehicle is equipped with an early warning system that could save you time, money, and fuel in addition to helping protect the p2138 accelerator pedal position sensor circuit range/performance.

Common Causes of Mazda Demio 3 P2138 OBD2 Code

A common cause of code P2138 is the failure of P2138 Accelerator Pedal Position Sensor Circuit Range/Performance, but there are several other possible causes as well, such as ;

Engine Control Module (ECM)
Dirty Oil
Erratic camshaft position due to low oil pressure
Open or short in the CMP sensor circuits

P2138 is a kind of Powertrain Trouble Code

Powertrain of a modern automobile, comprising engine (with exhaust system), transmission, drive shaft, suspension and the wheels. In a motor vehicle, the term powertrain or powerplant describes the main components that generate power and deliver it to the road surface, water, or air.

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

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P2138 Mazda Demio 3 OBD Code

P2138 Mazda Demio 3 Error Code Repair Process :

Common Causes of Mazda Demio 3 P2138 OBD2 Code

P2138 code for other Mazda cars