P0463

Test 1:

SYMPTOM
P0463 - FUEL LEVEL SENDING UNIT VOLTS TOO HIGH

TEST NOTE
This symptom is diagnosed using the test P0462 - FUEL LEVEL SENDING UNIT VOLTS TOO LOW.

WHEN MONITORED
Ignition on and battery voltage above 10.4 volts.

SET CONDITION
The fuel level sensor signal voltage goes below 0.4 volts for more than 90 seconds.

POSSIBLE CAUSES
- Vehicle speed sensor operation
- (F888) 8-Volt supply circuit open
- (N7) VSS signal circuit shorted to ground
- (N7) VSS signal circuit open
- PCM
- (K900) sensor ground circuit open
- Vehicle speed sensor