P0398 Trouble Code

View P0398 obd/2 error code description and symptoms. P0398 engine photo

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 P0398. However, it is intended to flash the transmission control indicator lamp (TCIL) for first time VSS circuit error/malfunctions. Refer to possible causes for P0398

A good starting point in your diagnosis is checking all system fuses and fusible links. This can be done using the DVOM on the voltage setting. You will want to test the fuses with circuits loaded. Some fuses will appear normal until a load is placed on their respective circuit; at which point they will fail. This has been the cause of many 'phantom malfunctions'. Consult your vehicle information source for fuse and fusible link locations. If all fuses are in working order, you may want to check TCM relay operation by swapping identical relays. Usually the horn relay, starter relay, fuel pump relay, air conditioning clutch relay, and controller relays are similar enough in design to swap for diagnostic purposes.

P0398 Error Code Repair Process :

If your throttle position sensor out of range 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 P0398 and engine control unit are in charge of monitoring a bunch of different throttle position sensor out of range, and if they get a reading that's a little out of whack, up pops the check engine light.

P0398 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.

Common Causes of P0398

A common cause of code P0398 is the failure of Throttle position sensor out of range, but there are several other possible causes as well, such as ;

EVAP system hose leaking
Faulty Mass Air Flow (MAF) sensor
1Camshaft Position Sensor circuit poor electrical connection
Oil flow restriction in the oil passages or the variable camshaft timing (VCT) valve body

P0398 code for all cars

You can view according P0398 DTC for your car model. We selected several models to see obd2 solutions click and view it.

+P0398 Opel Rekord

+P0398 Nissan 1-tonner

+P0398 Brutsch Zwerg

+P0398 Ford Escape

+P0398 Opel Agila

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