The gas pedal position sensor cannot be repaired; in the event of a malfunction, the electronic gas pedal assembly is replaced. The need to perform work is determined during the check of the technical condition of the engine control system (see «Checking the technical condition of the engine management system»).
You will need a multimeter to do the job.
Removing
1. We prepare the car for work and disconnect the wire terminal from the negative terminal of the battery (see «Preparing the car for maintenance and repair»).
2. Press the clamps of the wiring harness block and disconnect the block from the gas pedal sensor.
3. Using a 10 mm socket wrench, unscrew the three nuts securing the gas pedal.
4. Remove the pedal from the studs.
Examination
With a multimeter in ohmmeter mode, you can check the condition of the moving contacts and conductive tracks of the gas pedal position sensors. For this:
1. We connect one multimeter probe to pin 4, and the other to pin 2.
Comment. For the convenience of checking the conclusions, you can put on segments of polyvinyl chloride tubes, and insert the multimeter probes into them.
2. Slowly moving the gas pedal, we control the electrical resistance on the device, which should gradually decrease.
3. Repeat the test by connecting the multimeter to pins 4 and 3.
4. Similarly, we check the conductive path of another sensor by connecting the multimeter in series to terminals 1-6 and 6-5.
If, when checking any of the tracks, the resistance changes abruptly, the sensor should be replaced.
Installation
Install the gas pedal in reverse order. In order not to accidentally bend the leads in the gas pedal sensor connector, we connect the wire block before installation. Then we put the gas pedal bracket on the studs. Tighten the pedal mounting nuts to a torque of 6-8 Nm.