Test 1 Speed and Reference Mark Sensors

Test 1 SPEED AND REFERENCE MARK SENSORS











- Check wires for tight fit and damage
- Check conditions and arrangement of plug connections.
- Reference mark sensor (B) is marked with a ring.
- Turn engine with the starter.
- Check resistance (M 06) and oscillograph (M 22/23) on disconnected pulse sensor plug with BMW service test unit.
- Check wire leading to DME control unit:
- Take off trim panel
- Pull off ping on control unit and connect on universal adapter with (35-pin) test lead. Check power flow (M 06) in wires, on specified pins.