Contents: Examination ↓ Checking the input voltage ↓ Checking the output voltage ↓ Removal ↓ Installation ↓
Checking the stabilizer
1. Voltage stabilizer; 2. Fastening screw; 3. Radiator
The stabilizer maintains a constant voltage on the devices. The stabilizer must be checked if the coolant temperature and fuel gauges give incorrect values.
Examination
1. Remove the visor and instrument panel cover.
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2. Remove the left instrument.
Caution! Do not disconnect the battery.
Note! For instrument clusters with an analog clock or tachometer, the voltage stabilizer is located in a frame on the printed circuit board behind the right instrument.
3. Turn on the ignition.
Checking the input voltage
4. Connect the voltmeter to the positive input (terminal 15) (a) and ground (b). The required value is approximately the battery voltage (12 V). Otherwise, find the break in the wiring diagram.
Checking the output voltage
5. Connect the voltmeter to the output pole (c) and ground (b). The required value is 9.5–10.5 V, otherwise, there is a break in the conductive foil or the voltage stabilizer is faulty. Replace the faulty part.
Attention! The conductive foil cannot be replaced separately. The entire instrument panel must be replaced.
Removal
1. Turn off the ignition.
2. Unscrew the fastening screw (2) and remove the voltage stabilizer downwards from the contacts (a, b, c).
Installation
1. Three connections must be installed correctly in the contacts (a, b, c).
2. Screw the voltage stabilizer securely to the radiator. The radiator (3) serves to remove heat generated during operation. Therefore, do not install the stabilizer without a radiator.
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