Contents: Removal and inspection ↓ Installation ↓
Warning! Before performing work, read the precautions for repairing the engine management system (see "Precautions when repairing the engine management system").
To complete the work you will need a multimeter (in voltmeter mode).
Removal and inspection
1. Prepare the car for work (see "Preparing the car for maintenance and repair").
2. Pressing the spring clips, disconnect the wiring harness connector from the vehicle speed sensor.
3. Connect the "negative" probe of the voltmeter to the "mass" (to the engine).
4. Turn on the ignition and use a voltmeter to measure the supply voltage at the "+" terminal of the wiring harness connector (the terminal designation is made on the sensor).
Note: The voltage at the terminal must be at least 12 V. If the voltage does not reach the connector or is less than 12 V, the battery is discharged, the power supply circuit is faulty, or the ECU is faulty.
5. With an open-end wrench by 22 mm (or by hand) we unscrew the sensor and remove the sensor from the drive.
Advice: You can verify that the speed sensor is faulty by replacing it with a known good one.
Installation
We install the sensor in the reverse order.