DTC P0460: Fuel Level Unit No Change Over Miles: Testing

Turn ignition on. Using scan tool, read DTCs. If Good Trip counter is displayed for DTC P0460 and displayed count is "0", go to next step. If Good Trip counter is not displayed for DTC P0460 or displayed count is not "0", go to step 7.
NOTE: If DTC P0462 or P0463 is also present with DTC P0460, repair DTC P0462 and/or P0463 prior to continuing with this test.
Turn ignition off. Disconnect fuel pump module connector. Fuel pump module is located in top of fuel tank. Measure resistance between ground and Dark Blue/White wire at fuel pump module harness connector. If resistance is 100 ohms or more, go to next step. If resistance is less than 100 ohms, repair short to ground in Dark Blue/White wire between fuel pump module and Body Control Module (BCM). BCM is mounted near firewall under left side of instrument panel.
Ensure ignition is off. Disconnect BCM C3 connector. Connector C3 is a 34-pin White connector with a Black lock tab. Measure resistance of Dark Blue/White wire between fuel pump module harness connector and terminal No. 20 at BCM C3 harness connector. If resistance is less than 5 ohms, reconnect BCM C3 connector and go to next step. If resistance is 5 ohms or more, repair open in Dark Blue/White wire.
Measure resistance between ground and Black/Dark Blue wire at fuel pump module harness connector. If resistance is less than 5 ohms, go to next step. If resistance is 5 ohms or more, repair open in Black/Dark Blue wire.
Remove fuel tank. See FUEL TANK under FUEL SYSTEMS in appropriate REMOVAL, OVERHAUL & INSTALLATION article. Remove fuel pump module from fuel tank. Visually inspect inside of fuel tank for obstructions or deformities that may restrict the fuel level sending unit float from moving. Repair or replace fuel tank as necessary. If fuel tank is okay, go to next step.
At this time, fuel level sensor is assumed to be defective. Replace fuel level sensor. Fuel level sensor is located on fuel pump module and can be replaced separately. See FUEL LEVEL SENSOR under FUEL SYSTEMS in appropriate REMOVAL, OVERHAUL & INSTALLATION article.
At this time, conditions for DTC to set do not exist or fault is an intermittent problem. Start engine and allow it to idle. Ensure engine is at normal operating temperature. Using scan tool, monitor parameters related to DTC while wiggling connectors and wiring harness. If value changes while wiggling connectors and wiring harness, repair connectors and wiring harness where wiggling caused value to change. If value does not change, review Freeze Frame data using scan tool. Attempt to duplicate condition that caused DTC to set. Check for any related technical service bulletins that may apply. Visually inspect related connectors and wiring harness. Repair connectors and wiring harness as necessary. See WIRING DIAGRAMS article. If no problems are indicated, test is complete.