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DTC P0461: Fuel
Level Sensor Circuit Range/Performance
TECHNICAL DESCRIPTION
- The fuel level sensor converts the rest of the fuel to a voltage and seconds
it to the combination meter.
- The combination meter sends the data regarding the rest of the fuel to the ECM.
- The ECM checks whether this data is within a specified range.
DESCRIPTIONS OF MONITOR METHODS
Detect malfunction if change of fuel level sensor
output voltage is small when sum of fuel injection is large.
MONITOR EXECUTION
MONITOR EXECUTION CONDITIONS (Other monitor and Sensor)
Other Monitor (There is no temporary DTC stored in memory
for the item monitored below)
Sensor (The sensor below is determined to be normal)
DTC SET CONDITIONS
Logic Flow Chart
Check Condition, Judgement Criterion
- When the fuel consumption calculated from the operation time of the injector amounts
to 20 liters (5.2 gal), the diversity of the amount of fuel in tank calculated from the fuel level
sensor is 2 liters (0.5 gal) or less.
OBD-II DRIVE CYCLE PATTERN
TROUBLESHOOTING HINTS (The most likely causes for this code to be set are:)
- Combination meters assembly failed.
- Fuel level sensor failed.
- ECM failed.
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Required Special Tools:
- MB991958: Scan Tool (M.U.T.-III Sub Assembly)
- MB991824: V.C.I.
- MB991827: USB Cable
- MB991910: Main Harness A
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STEP 1. Using scan tool MB991958, read the combination
meter diagnostic trouble code (DTC).
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| caution |
To prevent damage to scan tool MB991958, always turn the
ignition switch to the "LOCK" (OFF) position before connecting or disconnecting scan tool MB991958.
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(1)Connect scan tool MB991958 to the data link connector.
(2)Turn the ignition switch to the "ON" position.
(3)Read the combination meter DTC.
(4)Turn the ignition switch to the "LOCK" (OFF) position.
Q.
Is the combination meter-DTC set?
 Refer to GROUP 54A, Chassis Electrical -
Combination Meter -
Diagnosis
Trouble Code Chart 
 Go to Step 2.
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STEP 2. Using scan tool MB991958, read the diagnostic trouble code
(DTC)
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(1)Turn the ignition switch to the "ON" position.
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(2)After the DTC has been deleted, read the DTC again.
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(3)Turn the ignition switch to the "LOCK" (OFF) position.
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Replace the ECM. When the ECM is replaced, register the ID code. Refer to GROUP
42B, Diagnosis -
ID Code Registration Judgment Table <Vehicles with KOS> or
GROUP 42C, Diagnosis -
ID Codes Registration Judgment Table <Vehicles with WCM> .
Then go to Step 3.
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It can be assumed that this malfunction is intermittent. Refer to GROUP 00, How
to Use Troubleshooting/Inspection Service Points -
How to Cope with Intermittent Malfunctions .
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STEP 3. Using scan tool MB991958, read the diagnostic trouble code
(DTC)
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(1)Turn the ignition switch to the "ON" position.
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(2)After the DTC has been deleted, read the DTC again.
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(3)Turn the ignition switch to the "LOCK" (OFF) position.
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Retry the troubleshooting.
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The inspection is complete.
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