P0464 - Santa Fe Hyundai Cars & Trucks

Did you check the fuse that supply's battery voltage to pin # 16 at the DLC - diagnostic link connector ? That's where you plug your code reader in . The lighter fuse - 15 amp located in the under hood fuse box supply's battery voltage to pin #16 . The fuel gauge not working could be any one of a number of thing's , without testing an checking for DTC'S - diagnostic trouble code's I would only be guessing . Checking code's in the instrument cluster an PCM should be done by a qualified repair shop. The fuel level sending unit in the fuel tank is a direct input to the PCM/ECM - engine computer , the PCM / ECM sends this info too

The instrument panel cluster (IPC) displays the fuel level as determined by the powertrain control module (PCM)/engine control module (ECM). The IPC receives a GMLAN message from the body control module (BCM) indicating the fuel level volume. The fuel gage defaults to empty (E) if:
• The PCM/ECM detects a malfunction in the fuel level sensor circuit.
• The IPC detects a loss of GMLAN communications with the BCM.
When the fuel level is less than a certain low percentage, LOW FUEL message displays in the driver information center (DIC).

Odometer
The vehicle odometer is calculated and stored electronically in the body control module (BCM) and is sent via GMLAN to the instrument panel cluster (IPC) for display. The BCM calculates and stores the mileage based on the vehicle speed GMLAN message from the powertrain control module (PCM)/engine control module (ECM). The IPC displays the season odometer information from the BCM in the driver information center (DIC). The odometer will display error if the IPC detects an invalid odometer data from the BCM. After an invalid odometer data is received from the BCM, the IPC will display the last known odometer reading for 1.5 seconds before error is displayed in the DIC.

These can set a few different DTC'S

DTC B0158
DTC B2961
DTC P0461 (2.0L and 2.2L)
DTC P0461 (2.4L)
DTC P0462 (2.0L and 2.2L)
DTC P0462 (2.4L)
DTC P0463 (2.0L and 2.2L)
DTC P0463 (2.4L)
DTC P0464
DTC P0520


So , i suggest you take your vehicle to a qualified repair shop.

Yes the fuel tank has to come out to change the fuel pump. But are you sure that is the problem ? Your vehicle has a Fuel Pump Flow Control Module (electronic's ) Or is it just your fuel level sensor you want to replace ? And to your question of if the fuel level sensor is bad will the car shut down if the gage says it is emty but it is not? No ,this will not shut down the vehicle. You probably have no idea of the complexity of the electronic's involved an the thing's that can cause the gauge not to work .
Fuel Gage
The instrument panel cluster (IPC) displays the fuel level as determined by the ECM. The IPC receives a serial data message from the ECM indicating the fuel level percent. The fuel gage defaults to empty if:
• The ECM detects a malfunction in the fuel level sensor circuit.
• The IPC detects a loss of serial data communications with the BCM
• The BCM detects a loss of serial data communications with the ECM
When the fuel level is less than a pre-determined value, the low fuel indicator illuminates in the IPC.
Unless you have a factory or professional type scan tool your better off taking your vehicle to a qualified repair shop.

Fuel Gage Inaccurate or Inoperative
Circuit/System Description
The fuel level sender changes resistance based on the fuel level. The engine control module (ECM) monitors the signal circuit of the fuel level sender to determine fuel level. When the fuel tank is full, the sender resistance is low and the ECM senses a low signal voltage. When the fuel tank is empty, the sender resistance is high and the ECM senses a high signal voltage. The ECM uses the signal circuit of the fuel level sender in order to calculate the remaining fuel level percent in the tank. The ECM sends the fuel level message via the serial data circuit to the body control module (BCM). The BCM sends the fuel level percent to the instrument panel cluster (IPC) via the serial data circuit for display on the fuel gage.

Circuit
Short to Ground
High Resistance
Open
Short to Voltage
Signal Performance
Fuel Level Sensor Signal
P0462
1
P0463, P0464
P0463
P0461
Fuel Level Sensor Low Reference
--
1
P0463, P0464
P0463
P0461
1. Fuel Gage Inaccurate or Inoperative

Do you know what a DTC is ? diagnostic trouble code !

P0463 Hyundai - Fuel Level Sensor 'A' Circuit High Input
P0464 Hyundai - Fuel Level Sensor 'A' Circuit Intermittent
P0463 Hyundai - Fuel Level Sensor 'B' Circuit High Input
Possible causes
- Faulty fuel level sensor
- Fuel level sensor harness is open or shorted
- Fuel level sensor circuit poor electrical connection
The fuel level sensor of Hyundai Santa Fe is mounted in the fuel level sensor unit. The sensor detects a fuel level in the fuel tank and transmits a signal to the Engine Control Module (ECM). The fuel level sensor consists of two parts, one is mechanical float and the other side is variable resistor. The fuel level sensor output voltage changes depending on the movement of the fuel mechanical float.

Well, I don't think so. The pressure sensor will throw its own code (0450, 0451, 0452, 0453, or 0454). And likewise, the fuel level sender or sensor could also throw its own codes (P0460-P0464).

I'm not sure the level sensor and the pressure sensor are linked together. They are separate on a 2005 buick century, the pressure sensor being at the top of the tank located on the fuel pump module, but Cadillac: anything is possible.

Since you replaced the purge solenoid, there may be a problem in the circuit. The purge should have battery voltage to it with the key on. The ECM will ground the circuit internally when the purge is wanted. One symptom of a purge valve that isn't working or stuck closed can be a whooshing sound when the fuel tank cap is opened, indicating excessive pressure in the tank.
A shop's scan tool could be used to command the purge valve on to check it.

we, usa only have Grand vitara's in 05.???
our car if you scan it will show intermittant sender DTC errors.
P0464

the fsm BOOK cover these tests.
you unplug the connector, shown.
you attach and DMM , set to ohms.
about 2 to 150 ohms is range. low is full, 150 empty.
on mine, 32 ohms is 1/2 full. but as always, RTM
read the manual. the FSM.
or at alldata.com

the book shows what resistance for the sender equals 1/2 full
easy huh, a $10 meter and bam, the answer , no guessing
and draining a tank of fuel and wasted 5hrs labor +

pull the connector to sender
turn on key , guage must go to empty.
if not the wiring or gauge (rare) are bad.
if yes, the sender is hosed. (or jammed)


https://suzukipitstopplus.com/Products/1145-2004-vitara-service-manual.aspx

Hello,P0464 means Fuel Level Sensor "A" Circuit Intermittent .
Diagnostic Trouble Code Table hope can help you.

Well code 464 means the fuel sending unit is not sending a signal to the computer from time to time. It is not a constant problem.
My guess would be there is a problem with the wiring between the tank and the computer.

As far as I know ,for the last 65 years, the fuel level
gauge & now fuel sensor is in the fuel tank

Have to drop the tank to get at the fuel pump,
gauge level sensors or some evap solenoids
& switches

Hi there:

DTC P0455 - Evaporative Emission (EVAP) System Large Leak Detected

When you start your truck. The computer sends a signal to the fuel tank vent valve to close off the fuel tank vapor system... Now, when the vent solenoid is commanded closed, the computer believes that the vapor system is now completely sealed up. The computer now looks at the fuel tank pressure sensor and measures the pressure inside of the tank.

Once the reading is taken, the computer will command the "purge solenoid" to open and pull a vacuum on the fuel tank.

If the computer does not see the pressure sensor reading change, it then assumes that the fuel cap was left off because it sees a fuel vapor leak.

The system will then retest itself after a period of time and if the same results are found, the assumption is that the customer would have already checked/replaced the missing fuel cap and there must be a bigger problem.

CONDITIONS FOR RUNNING THE DTC

Before the powertrain control module (PCM) can report DTC P0455 failed, DTC P0496 must run and pass.


DTCs P0106, P0107, P0108, P0112, P0113, P0116, P0117, P0118, P0120, P0121, P0122, P0123, P0125, P0131, P0132, P0133, P0134, P0135, P0136, P0137, P0138, P0140, P0141, P0151, P0152, P0153, P0154, P0155, P0156, P0157, P0158, P0160, P0161, P0220, P0442, P0443, P0449, P0451, P0452, P0453, P0454, P0464, P0496, P0502, P0503, P1111, P1112, P1114, P1115, P1121, P1122, P1125, P2135 are not set.


The engine is running.
The ignition voltage is between 10-18 volts .
The barometric pressure (BARO) is more than 75 kPa .
The fuel level is between 15-85 percent .
The engine coolant temperature (ECT) is between 4-65 degrees C (39-149 degrees F) .
The intake air temperature (IAT) is between 4-75 degrees C (39-167 degrees F) .
The start-up ECT and IAT are within 9 degrees C (16 degrees F) of each other.
DTC P0455 runs once per cold start.


CONDITIONS FOR SETTING THE DTC
The EVAP system is not able to achieve or maintain vacuum during the diagnostic test.


DIAGNOSTIC AIDS
To help locate intermittent leaks, use the J 41413-200 Evaporative Emission System Tester (EEST) to introduce smoke into the EVAP system. Move all EVAP components while observing smoke with the J 41413-SPT High Intensity White Light. Introducing smoke in 15-second intervals will allow less pressure into the EVAP system. When the system is less pressurized, the smoke will sometimes escape in a more condensed manner.


A temporary blockage in the EVAP canister purge solenoid valve, purge pipe, or EVAP canister could cause an intermittent condition. Inspect and repair any restriction in the EVAP system.


To improve the visibility of the smoke exiting the EVAP system, observe the suspected leak area from different angles with the J 41413-SPT.


Reviewing the Failure Records vehicle mileage since the diagnostic test last failed may help determine how often the condition that caused the DTC to be set occurs. This may assist in diagnosing the condition.


For intermittent conditions, refer to Testing for Intermittent Conditions and Poor Connections.


Hope this helps; also keep in mind that your feedback is important and I'll appreciate your time and consideration if you leave some testimonial comment about this answer.

Thank you for using Fixya, and have a nice day.

Hi there:DTC P0455 - Evaporative Emission (EVAP) System Large Leak Detected

The control module tests the evaporative emission (EVAP) system for a large leak. The control module monitors the fuel tank pressure (FTP) sensor signal to determine the EVAP system vacuum level. When the conditions for running are met, the control module commands the EVAP canister purge solenoid valve open and the EVAP canister vent solenoid valve closed. This allows engine vacuum to enter the EVAP system. At a calibrated time, or vacuum level, the control module commands the EVAP canister purge solenoid valve closed, sealing the system, and monitors the FTP sensor input in order to determine the EVAP system vacuum level. If the system is unable to achieve the calibrated vacuum level, or the vacuum level decreases too rapidly, this DTC sets.
The table illustrates the relationship between the ON and OFF states, and the Open or Closed states of the EVAP canister purge and vent solenoid valves.

This diagnostic procedure supports the following DTC:

CONDITIONS FOR RUNNING THE DTCBefore the powertrain control module (PCM) can report DTC P0455 failed, DTC P0496 must run and pass.DTCs P0106, P0107, P0108, P0112, P0113, P0116, P0117, P0118, P0120, P0121, P0122, P0123, P0125, P0131, P0132, P0133, P0134, P0135, P0136, P0137, P0138, P0140, P0141, P0151, P0152, P0153, P0154, P0155, P0156, P0157, P0158, P0160, P0161, P0220, P0442, P0443, P0449, P0451, P0452, P0453, P0454, P0464, P0496, P0502, P0503, P1111, P1112, P1114, P1115, P1121, P1122, P1125, P2135 are not set.The engine is running.The ignition voltage is between 10-18 volts .The barometric pressure (BARO) is more than 75 kPa .The fuel level is between 15-85 percent .The engine coolant temperature (ECT) is between 4-65 degrees C (39-149 degrees F) .The intake air temperature (IAT) is between 4-75 degrees C (39-167 degrees F) .The start-up ECT and IAT are within 9 degrees C (16 degrees F) of each other.DTC P0455 runs once per cold start.

CONDITIONS FOR SETTING THE DTC The EVAP system is not able to achieve or maintain vacuum during the diagnostic test.

ACTION TAKEN WHEN THE DTC SETSThe control module illuminates the malfunction indicator lamp (MIL) on the second consecutive ignition cycle that the diagnostic runs and fails.The control module records the operating conditions at the time the diagnostic fails. The first time the diagnostic fails, the control module stores this information in the Failure Records. If the diagnostic reports a failure on the second consecutive ignition cycle, the control module records the operating conditions at the time of the failure. The control module writes the operating conditions to the Freeze Frame and updates the Failure Records.

CONDITIONS FOR CLEARING THE MIL/DTCThe control module turns OFF the malfunction indicator lamp (MIL) after 3 consecutive ignition cycles that the diagnostic runs and does not fail.A current DTC, Last Test Failed, clears when the diagnostic runs and passes.
A history DTC clears after 40 consecutive warm-up cycles, if no failures are reported by this or any other emission related diagnostic.Clear the MIL and the DTC with a scan tool.

DIAGNOSTIC AIDSTo help locate intermittent leaks, use the J 41413-200 Evaporative Emission System Tester (EEST) to introduce smoke into the EVAP system. Move all EVAP components while observing smoke with the J 41413-SPT High Intensity White Light. Introducing smoke in 15-second intervals will allow less pressure into the EVAP system. When the system is less pressurized, the smoke will sometimes escape in a more condensed manner.
A temporary blockage in the EVAP canister purge solenoid valve, purge pipe, or EVAP canister could cause an intermittent condition. Inspect and repair any restriction in the EVAP system.
To improve the visibility of the smoke exiting the EVAP system, observe the suspected leak area from different angles with the J 41413-SPT.Reviewing the Failure Records vehicle mileage since the diagnostic test last failed may help determine how often the condition that caused the DTC to be set occurs. This may assist in diagnosing the condition.For intermittent conditions, refer to Testing for Intermittent Conditions and Poor Connections. See: Diagrams\Diagnostic Aids

TEST DESCRIPTIONNumbers below refer to the step numbers on the diagnostic table.
Introducing smoke in 15-second intervals may allow smaller leak areas to be more noticeable. When the system is less pressurized, the smoke will sometimes escape in a more condensed manner.This step verifies proper operation of the FTP sensor.A normal operating FTP sensor should increase above 5 inches of H2O and stop between 6-7 inches of H2O.
Fig: 01Fig. 02Fig. 03

Hope this helps.