Contents: Removal ↓ Checking the parking brake sensor ↓ Checking the brake light switch ↓ Checking the pressure modulator ↓
Removal
Note: Remove the modulator as shown in the figure "Pressure Modulator". Install in the reverse order of removal. After installation, bleed the brake system and check for leaks.
Checking the parking brake sensor
1. Check the conductivity between terminal "1" and "ground" of the sensor connector.
- The parking brake lever (pedal) is pulled (pressed) - the circuit is closed
- released (released) - the circuit is open
If the circuit condition is not as specified, the parking brake switch is faulty.
Checking the brake light switch
1. Check the continuity between terminals "1" and "2" of the brake light switch connector. There should be continuity when the pedal is pressed, but there should be no continuity when the pedal is released. Otherwise, replace the brake light switch.
Pressure modulator.
1 - mudguard,
2 - pressure modulator,
3 - engine protection cover.
Pressure modulator (continuation).
1 - bracket,
2 - pressure modulator,
3 - pressure modulator bracket (models with petrol engine),
4 - pressure modulator bracket (models with diesel engine).
Checking the pressure modulator
1. Check the conductivity and resistance between the terminals of the pressure modulator connectors as shown in the table.
If the resistance between the specified terminals does not correspond to the values given in the table, then the pressure modulator is faulty.
Models before 1996.
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Models since 1996.
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