Diagnostic Aids

If DTC P0463 is also displayed, go to DTC P0463  first. Inspect harness connectors for backed-out terminal, improper mating, broken locks, improperly formed or damaged terminals, and poor terminal-to-wire connection.

Inspect the wiring harness for damage.

A faulty fuel level sensor may cause the DTC to set. If DTC P0464 cannot be duplicated, the information included in the Freeze Frame data can be useful in determining vehicle operating conditions when the DTC was first set.

Resistance checks for the fuel level sensor:

• Empty= 280 ohms or over.
• Half Full= about 90 ohms.
• Full= 38 ohms or less.