P139B Mazda Activehicle OBD Code

OBD/2 P139B error code description and symptoms.

Vehicle Speed Sensor (VSS) Intermittent Indicates the powertrain control module (PCM) detected an error in the vehicle speed information. Vehicle speed data is received from either the vehicle speed sensor (VSS), transfer case speed sensor (TCSS), anti-lock brake system (ABS) control module, generic electronic module (GEM), or central timer module (CTM). This DTC is set the same way as P139B. However, it is intended to flash the transmission control indicator lamp (TCIL) for first time VSS circuit error/malfunctions. Refer to possible causes for P139B

Some systems require that the actuator has an adequate supply of brake fluid. Low brake fluid levels can mimic the symptoms of code P139B, so consult the manual to locate the brake fluid reservoir. Bear in mind that a low fluid level can set code P139B on some applications, so make sure that on fluid operated systems the fluid level is up to the mark before starting an electrical diagnosis.

P139B Mazda Activehicle Error Code Repair Process :

The rule of P139B 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 . Likewise, overriding the OBD P139B 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 Mazda Activehicle P139B OBD2 Code

A common cause of code P139B is the failure of , but there are several other possible causes as well, such as ;

EVAP system hose leaking
Faulty front heated oxygen sensor
Intake Valve Timing Control Solenoid Valve harness is open or shorted
Fuel filler cap remains open or fails to close

P139B 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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P139B Mazda Activehicle OBD Code

P139B Mazda Activehicle Error Code Repair Process :

Common Causes of Mazda Activehicle P139B OBD2 Code

P139B code for other Mazda cars