LEMON Manuals: Even more car manuals for everyone
Home >> Suzuki >> 2007 >> Aerio Base, AWD >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine General Information And Diagnosis >> Diagnostic Information and Procedures >> DTC P0462/P0463: Fuel Level Sensor Circuit Low/High >> DTC Troubleshooting

DTC Troubleshooting

DIAGNOSIS PROCEDURE

Step Action YES NO
1  Was "Engine and Emission Control System Check" performed?  Go to Step 2. Go to ENGINE AND EMISSION CONTROL SYSTEM CHECK .
2  Fuel level sensor performance check 
  1. Check fuel level sensor for performance referring to FUEL LEVEL SENSOR INSPECTION .

Is it in good condition? 		 Go to Step 3. Replace main and/or sub fuel level sensor.
3  Wire harness check 
  1. Disconnect connector from ECM with ignition switch turned OFF.
  2. Check for proper terminal connection to fuel level sensor and ECM connectors.
  3. If connections are OK, check that fuel level sensor circuit is as follows.

  • Wiring harness resistance of fuel level sensor circuit is less than 3ohm
  • Insulation resistance of fuel level sensor circuit is infinity between fuel level sensor connector and vehicle body ground
  • Circuit voltage of fuel level sensor circuit is 0 - 1 V with ignition switch turned ON

Are they in good condition? 		 Substitute a known good ECM and recheck. Fuel level sensor signal circuit is open, short or high resistance.
scientia non olet · About LEMON Manuals