DTC P0460: Fuel Gauge Sender Unit: Condition

DTC indicates fuel level input circuit malfunction due to low or high fuel level input to PCM, or mechanically stuck fuel pump. Possible causes are:

Verify Fuel Tank Level

Turn ignition on. Note fuel gauge reading. Using scan tool, select FLI PID. If both fuel gauge and FLI PID readings are between 1/4 (25 percent for FLI PID) and 3/4 (75 percent for FLI PID), go to next step. If readings are not as specified, inspect fuel tank for leaks. Repair as necessary and retest. If fuel tank is okay, go to next step.

Check FLI Voltage Using Breakout Box

Turn ignition off. Disconnect PCM 104-pin connector. Inspect connector for loose, damaged or corroded terminals. Install Breakout Box (014-00950). Connect PCM to breakout box. Using scan tool, select FLI V PID. Note PID voltage reading. Measure voltage between test pins No. 63 and 91 at breakout box. If both voltage readings are 1.24-2.90 volts, go to next step. If voltage is not as specified, check fuel gauge for proper installation. Repair as necessary and repeat this step to verify repair. If fuel gauge installation is okay and one voltage reading is not as specified, replace PCM. If fuel gauge installation is okay and both voltage readings are not as specified, go to next step.

Check Fuel Pump Resistance

Disconnect fuel pump module connector. Measure resistance between CASE GND terminal and FLI terminal at fuel pump module pigtail connector. If resistance is 15-160 ohms, reconnect fuel pump module and repeat QUICK TEST. See TESTS W/CODES - INTRODUCTION article. If resistance is not 15-160 ohms, replace fuel pump module.