DTC P0462: Fuel Level Sensor Circuit Low Input

CIRCUIT OPERATION
• The fuel level sensor output voltage is input in ECM (terminal No. 74) <M/T> or PCM (terminal No. 60) <A/T>.
TECHNICAL DESCRIPTION
• Branch the output voltage from the fuel level sensor circuit, and input it into ECM <M/T> or PCM<A/T>.
• The ECM <M/T> or PCM <A/T> checks whether this voltage is within a specified range.
DESCRIPTIONS OF MONITOR METHODS
• A short circuit is detected while monitoring the fuel level sensor output.
MONITOR EXECUTION
Continuous
MONITOR EXECUTION CONDITIONS (Other monitor and Sensor)

Other Monitor (There is no temporary DTC stored in memory for the item monitored below)
• Not applicable

Sensor (The sensor below is determined to be normal)
• Not applicable
DTC SET CONDITIONS Logic Flow Chart


Check Conditions
Battery positive voltage is between 11 and 16.5 volts.
2 seconds or more have passed since the engine starting sequence was completed.

Judgement Criterion
• Fuel level sensor output voltage has continued to be lower than 0.2 volt for 2 seconds.
OBD-II DRIVE CYCLE PATTERN
Refer to Diagnostic Function - OBD-II Drive Cycle - Pattern 19 .
TROUBLESHOOTING HINTS (The most likely causes for this code to be set are:
• Fuel level sensor failed.
• Open or shorted fuel level sensor circuit or connector damage.
• ECM failed. <M/T>
• PCM failed. <A/T>