U1493 Trouble Code

View U1493 obd/2 error code description and symptoms. U1493 engine photo

Brake Switch Circuit Input Malfunction Indicates PCM did not receive a brake pedal position (BPP) input. Open or short in BPP circuit Open or short in stoplamp circuits Damaged PCM Malfunction in module(s) connected to BPP circuit. (Rear Electronic Module [REM] Windstar and LS6/LS8 or Lighting Control Module (LCM) Continental and Town Car. Damaged brake switch Misadjusted brake switch Check for proper function of stoplamps.

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.

U1493 Error Code Repair Process :

If your seat belt switch circuit short to ground 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 U1493 and engine control unit are in charge of monitoring a bunch of different seat belt switch circuit short to ground, and if they get a reading that's a little out of whack, up pops the check engine light.

U1493 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.

Common Causes of U1493

A common cause of code U1493 is the failure of Seat Belt Switch Circuit Short To Ground, but there are several other possible causes as well, such as ;

Failures of clutch motion/travel sensors.
Faulty select solenoid
Faulty Air Flow Meter
Three way catalyst converter Bank 1

U1493 code for all cars

You can view according U1493 DTC for your car model. We selected several models to see obd2 solutions click and view it.

+U1493 Nissan 1600

+U1493 Mercedes A 180

+U1493 Bmw B10

+U1493 Citroen 11 L

+U1493 Toyota Dyna

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