B3402 Mazda Demio 3 OBD Code

OBD/2 B3402 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 B3402. However, it is intended to flash the transmission control indicator lamp (TCIL) for first time VSS circuit error/malfunctions. Refer to possible causes for B3402

One example of this would be when an automatic vehicle in placed in gear. To prevent the added drag from the torque converter and transmission from reducing the idling speed, the PCM will command the idle control valve to allow more air to enter the engine, while at the same time, adjusting the injector pulse width to inject more fuel to suit the increased amount of air. Note that the idle air control valve is closed by the PCM when the throttle plate is opened to prevent excess air from entering the engine.

B3402 Mazda Demio 3 Error Code Repair Process :

If your low a/c cycling period check engine light is illuminated, it's best to take it in for diagnostic testing, which can feel like a hassle. Because while the lights vary in appearance from vehicle to vehicle, all have the same basic meaning: There's a problem with the car's emissions system. The on-board diagnostics system B3402 and engine control unit are in charge of monitoring a bunch of different low a/c cycling period, and if they get a reading that's a little out of whack, up pops the check engine light.

Difficulty Level (Expert)
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Repair Time (35 Min.)
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Cost Prediction : $ 40-75

Common Causes of Mazda Demio 3 B3402 OBD2 Code

A common cause of code B3402 is the failure of Low A/C Cycling Period, but there are several other possible causes as well, such as ;
Wrench Tool B3402 is a kind of Body Trouble Code

Auto body problems aren't always easy to spot. Diagnosing auto body problems sometimes requires a little know-how. In this section you'll find articles dedicated to teaching you how to diagnose auto body problems.

B3402 code for other Mazda cars

You can view according B3402 DTC for your car model. We selected several models to see obd2 solutions click and view it.

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

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