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.
Circuit High Input codes like B0171 are mostly caused by defective alternators that develop excessive voltages, although there may be other causes as well, such as short circuits that 'leak' current into a particular system from other, unrelated systems that work on higher voltages. Note that in the case of short circuits that leak power into a control circuit, there is likely to be other, seemingly unrelated trouble codes present along with the code(s) being investigated. Diagnosing a 'high input' code will always involve a thorough testing of the charging system as a first step, followed by measures to isolate the system from all other possible sources of power during resistance, continuity, and reference voltage tests.
Difficulty Level (Easy)
Repair Time (45 Min.)
|Cost Prediction : $ 80-120|
If your timing reference high resolution signal a too many pulses 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 B0171 and engine control unit are in charge of monitoring a bunch of different timing reference high resolution signal a too many pulses, and if they get a reading that's a little out of whack, up pops the check engine light.
B0171 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.
You can view according B0171 DTC for your car model. We selected several models to see obd2 solutions click and view it.
|+B0171 Toyota Avanza||+B0171 Mazda 1400||+B0171 Riley 9||+B0171 Ferrari 158||+B0171 Peugeot Proxima|