asieps_tobira_IM_US.book 164 ページ 2012年1月17日 火曜日 午後3時48分
Diagnostic Trouble Code (DTC) Detecting Criteria
GENERAL DESCRIPTION
BW:DTC P0464 FUEL LEVEL SENSOR CIRCUIT INTERMITTENT
1. OUTLINE OF DIAGNOSIS
Detect the unstable output faults from the fuel level sensor caused by noise. Judge as NG when the Max. val-
ue and cumulative value of output voltage variation of the fuel level sensor is larger than the threshold value.
2. ENABLE CONDITION
Malfunction Criteria
Engine speed
After engine starting
Ignition switch
Battery voltage
Idle switch
Fuel level
Vehicle speed = 0 km/h (0 MPH)
3. GENERAL DRIVING CYCLE
• Always perform the diagnosis continuously at idle speed.
• Pay attention to the fuel level.
Threshold Value
≥ 500 rpm
1 second or more
ON
> 10.9 V
ON
9 ←→ 51 2 (2.4 ←→
13.4 US gal, 1.98 ←→
11.2 Imp gal)
10 seconds or more
GD(STI)-164