Diagnostic Procedures
- Perform POWERTRAIN ON-BOARD DIAGNOSTIC (OBD) SYSTEM CHECK , then go to next step.
- Disconnect fuel level sensor connector at fuel tank. Using scan tool, read fuel level sensor voltage. If voltage reading is 5 volts, go to next step. If voltage reading is not 5 volts, go to step 5).
- Connect a fused jumper wire between fuel level sensor connector signal and ground circuits at harness connector. Using scan tool monitor fuel level sensor. If scan tool voltage reads zero volts, go to next step. If scan tool voltage is not zero volts, go to step 6).
- Remove fuel level sensor (left tank). Check for loose or broken fuel tank baffle, stuck fuel level sensor or foreign material (ice) in fuel tank. Repair fuel tank as necessary. After repairs, go to step 10). If fuel tank is okay, go to step 7).
- Turn ignition off. Disconnect PCM connector. Check fuel level sensor signal circuit for open or short to ground. Repair as necessary. After repairs, go to step 10). If circuit is okay, go to step 8).
- Disconnect PCM connector. Check fuel level sensor signal and ground circuit for open. Repair as necessary. After repairs, go to step 10). If circuit is okay, go to step 8).
- Replace fuel level sensor. After replacing sensor, go to step 10).
- Check terminal connections at PCM. Repair terminals as necessary. After repairs, go to step 10). If terminals are okay, go to next step.
- Replace PCM. Program replacement PCM using required equipment. After replacing PCM, go to next step.
- Using scan tool, select DTC, CLEAR INFO function. Start and warm engine to normal operating temperature. Select DTC, SPECIFIC, then enter DTC P0461. Operate vehicle within conditions for setting this DTC. If scan tool indicates that this test ran and passed, go to next step. If scan tool does not indicate that this test ran and passed, repeat step 2).
- Using scan tool, select CAPTURE INFO, REVIEW INFO function. If any undiagnosed DTCs are displayed, go to applicable DTC test.