Malfunctions and replacement of the VAZ 2110 throttle position sensor The VAZ 2110 throttle position sensor (TPS) is an automobile potentiometer that transmits data to the regulator about how the throttle is positioned. The latter can change its location depending on the intensity of pressure on the gas pedal. There is a voltage regulator at the base of this device.
Its readings are recorded by the controller and, taking into account the available information, it supplies gasoline in portions. If it breaks down, the controller will receive distorted information. This can lead to suspension of its operation and excessive fuel consumption.
As a result of the signal pulse from the TPS, the controlling sensor evaluates the current throttle position, and the intensity of the signal change analyzes the degree of pressure on the accelerator pedal. This becomes a decisive circumstance for activating the necessary modes, as well as directing the air flow past the throttle through the idle shut-off and control mechanism. The TPS in a VAZ car is located in the engine compartment on the throttle fitting. It connects to the damper shaft.
What does P0122 mean?
This diagnostic trouble code (DTC) is a generic transmission code and applies to many OBD-II vehicles (1996 and newer). This may include, but is not limited to, Honda, Jeep, Toyota, VW, Chevy, Ford, etc. Although general, the exact repair steps may vary depending on the year, make, model, and transmission configuration.
Code P0122 means that the vehicle's computer has detected that the TPS (Throttle Position Sensor) "A" is reporting too low voltage. On some vehicles this lower limit is 0.17–0.20 volts (V). Simply put, the throttle position sensor is used to determine what position the throttle valve is at.
Did you configure it during installation? If the signal value is less than 17 V, the PCM sets this code. This could be an open or short to ground in the signal circuit. Or you could have lost the 5V reference voltage.
For more information on TPS, see What is a Throttle Position Sensor?
Example of a TPS throttle position sensor:
On which cars is this problem most common?
The problem with code P0122 can occur on different machines, but there are always statistics on which brands this error occurs more often. Here is a list of some of them:
- Chery
- Chevrolet (Chevrolet Aveo, Impala, Cruz, Lanos, Lacetti, Malibu, Silverado, Spark, Traverse)
- Chrysler
- Citroen (Citroen Berlingo)
- Daewoo (Daewoo Leganza, Matiz, Nexia)
- Dodge (Dodge Ram)
- Ford (Ford Galaxy, Mondeo, Transit, Focus)
- Geely
- Honda (Honda Accord, Jazz, Fit, Civic)
- Hover
- Hyundai (Hyundai Santa Fe, Solaris, Sonata)
- Jeep (Jeep Liberty)
- Kia (Kia Magentis, Rio, Sorento)
- Lifan (Lifan Solano)
- Mazda
- Mercedes
- Mitsubishi (Mitsubishi Colt, Lancer)
- Nissan
- Opel (Opel Astra)
- Peugeot (Peugeot 206, 307, 308, Partner)
- Skoda (Skoda Yeti, Fabia)
- Subaru
- Suzuki
- Toyota (Toyota Corolla)
- Volkswagen (Volkswagen Golf, Jetta, Crafter, Passat, Polo Sedan, Tiguan)
- VAZ 2107, 2109, 2110, 2112, 2114, 2115
- Gazelle Business, umz 4216
- Zaz Chance
- Lada Granta, Kalina, Niva, Priora
- UAZ Bukhanka, Patriot
With fault code P0122, you can sometimes encounter other errors. The most common ones are: P0102, P0108, P0113, P0118, P0222, P0223, P0300, P0335, P0341, P0343, P0452, P0463, P0719, P1122, P1381, P1403, P1961, P2135, C0242, U210 0.
Possible solutions
Refer to your specific vehicle's repair manual to determine the location of the TPS "A" circuit.
