Parking Brake System

Component specification

Switch parking brake 3/272

General





Type
2 position pressure switch, spring loaded.

Terminal










Check
Conditions (unless otherwise specified):
- Parking brake switch disconnected.





Check 1
Set the parking brake switch to neutral mode.
Measure the resistance between terminal #C1:3 and #C1:5. The value should be: approximately 0 ohm.
Measure the resistance between terminal #C1:8 and #C1:4. The value should be: approximately 0 ohm.
Measure the resistance between terminal #C1:7 and #C1:6. The value should be: approximately 0 ohm.

Check 2
Activate the parking brake switch by pulling the button.
Measure the resistance between terminal #C1:3 and #C1:4. The value should be: approximately 0 ohm.
Measure the resistance between terminal #C1:8 and #C1:6. The value should be: approximately 0 ohm.
Measure the resistance between terminal #C1:7 and #C1:5. The value should be: approximately 0 ohm.

Check 3
Activate the parking brake switch by pressing the button.
Measure the resistance between terminal #C1:3 and #C1:6. The value should be: approximately 0 ohm.
Measure the resistance between terminal #C1:8 and #C1:5. The value should be: approximately 0 ohm.
Measure the resistance between terminal #C1:7 and #C1:4. The value should be: approximately 0 ohm.