The Throttle Position sensor signals the Engine Control Module as to the current position of the engine throttle valve.
The current throttle valve opening is based on the driver's input from the gas pedal. The ECM uses the information from this sensor to help calculate fuel delivery and spark timing.
Some systems require that the actuator has an adequate supply of brake fluid. Low brake fluid levels can mimic the symptoms of code U0842, so consult the manual to locate the brake fluid reservoir. Bear in mind that a low fluid level can set code U0842 on some applications, so make sure that on fluid operated systems the fluid level is up to the mark before starting an electrical diagnosis.
Difficulty Level (Soso)
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Repair Time (50 Min.)
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| Cost Prediction : $ 40-75 |
If your ignition coil - cylinder 3 - early activation fault 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 U0842 and engine control unit are in charge of monitoring a bunch of different ignition coil - cylinder 3 - early activation fault, and if they get a reading that's a little out of whack, up pops the check engine light.
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U0842 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. |
You can view according U0842 DTC for your car model. We selected several models to see obd2 solutions click and view it.
| +U0842 Proton Wira | +U0842 Mercury Zephyr | +U0842 Emme Lotus | +U0842 Borgward Isabella | +U0842 Chevrolet California |
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