P0460

Tests 1 - 2:

Tests 3 - 7:

Test 8:

SYMPTOM
P0460-FUEL LEVEL UNIT NO CHANGE OVER MILES

WHEN MONITORED
TEST # 1: With the ignition ON, the fuel level is compared to the previous key down after a 20 second delay.

TEST # 2: The PCM monitor the fuel level at ignition ON.

SET CONDITION
TEST # 1: If the PCM does not see a difference in fuel level of greater than 0.1 volt the test will fail.




TEST # 2: If the PCM does not see a change in the fuel level of .1765 over a set amount of miles the test will fail. See Fuel Level Voltage Change Over Miles Chart for an example.

POSSIBLE CAUSES
- Intermittent condition
- Visually inspect fuel tank
- Fuel level sensor signal circuit shorted to ground
- Fuel level sensor signal circuit open
- Ground circuit open
- Internal inspection of the fuel tank
- Fuel level sensor