User Manual

Chapter 11
BOSCH HDI EDC 15C2 INJECTION SYSTEM AND PARTICLE FILTER
90
VI - FUEL FILLER CAP PRESENCE SENSOR (4320)
A - ROLE
The fuel filler cap presence sensor informs the additive ECU whether the fuel filler
cap is open or closed.
Role of the additive ECU depending on the information received: to detect
whether fuel may have been added.
B - DESCRIPTION
SDI034C
11
10
10 - Permanent magnet
11 - Contact
The filler cap is fitted with a magnet. When the cap is closed, the magnet is
opposite the contact.
C - ELECTRICAL FEATURES
Supply: fuel additive ECU.
Allocation of connector channels:
• channel 1: 5 volt supply,
• channel 2: signal,
• presence of the magnet opposite the contact: resistance = 150 000 ohms,
• absence of the magnet opposite the contact: resistance = 15 ohms.
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