U0493 Nissan Teana OBD Code

OBD/2 U0493 error code description and symptoms.

The issue covered by the bulletin involves a power steering noise/whine or fluid leak from the power steering pump, gear or high pressure side power steering hose during extreme low outdoor temperature operation.

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.

U0493 Nissan Teana Error Code Repair Process :

If your vehicle speed sensor malfunction 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 U0493 and engine control unit are in charge of monitoring a bunch of different vehicle speed sensor malfunction, and if they get a reading that's a little out of whack, up pops the check engine light.

Common Causes of Nissan Teana U0493 OBD2 Code

A common cause of code U0493 is the failure of Vehicle Speed Sensor Malfunction, but there are several other possible causes as well, such as ;

Exhaust gas leaks
Camshaft advance mechanism binding (VCT unit)
Ignition misfiring
Air fuel ratio (A/F) Sensor 1 Bank 1 circuit poor electrical connection

U0493 is a kind of Network Trouble Code

U-code indicates that engine communication errors and shows lost communication with engine parts.U-Codes are fairly straight forward, given all of the articles and technical publications that have been written regarding these problematic codes. In most cases, it just comes down to identifying the module that isn't communicating with the other modules on the CAN bus line for whatever reason.

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

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U0493 Nissan Teana OBD Code

U0493 Nissan Teana Error Code Repair Process :

Common Causes of Nissan Teana U0493 OBD2 Code

U0493 code for other Nissan cars