Code p0463
Fuel level sending unit voltage is monitored when ignition is on and battery voltage is more than 10.4 volts. DTC will set when fuel level sensor signal voltage goes to more than 4.95 volts at the PCM for more than 90 seconds.
Possible Causes
Intermittent Condition
Fuel Level Sensor
Fuel Level Sensor Signal Circuit Open
Sensor Ground Circuit Open
Fuel Level Sensor Signal Circuit Shorted To Sensor Ground Circuit
PCM
p1756:
Circuit is monitored continuously while ignition is on and engine is running, not in Park or Neutral. DTC sets if governor pressure sensor output is not 15-30 psi (1.0-2.1 kg/cm2 ) when requested pressure is 20-25 psi (1.4-1.7 kg/cm2 ) for 2.2 seconds. Test must fail 5 times to set DTC.
Possible Cause
The following items may be area of concern:
Other transmission-related DTCs are set.
Solenoid pack connector 5-volt supply circuit open.
Sensor signal circuit has short to ground, short to voltage or open.
Governor pressure sensor defective.
Transmission fluid burnt or oil pan contains excessive debris.
Governor pressure out of range.
Transmission leaking internally.
Defective PCM.
Defective valve body.
Tuesday, July 14th, 2020 AT 11:52 AM
(Merged)