Operation CHARM: Car repair manuals for everyone.
Home >> Cadillac >> 1998 >> Eldorado V8-4.6L VIN Y >> Repair and Diagnosis >> Powertrain Management >> Relays and Modules - Powertrain Management >> Relays and Modules - Computers and Control Systems >> Body Control Module >> Description and Operation >> Fuel Level Sensing
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

Or, hide this message: temporarily or permanently

Fuel Level Sensing

The Body Control Module (PZM) calculates the fuel level than sends a serial data message to the instrument cluster and the Powertrain Control Module (PCM). The PZM sends the fuel level information to the instrument cluster each time there is a change of at least 0.5 liters (0.13 gallons). The PZM send the fuel level information to the PCM each time a change of 1.0 liter (0.26 gallons).
pro multis · About Operation CHARM