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DTC Troubleshooting

DIAGNOSTIC PROCEDURES CHART

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  DTC check 
  1. Check DTC.

Is there any CAN-DTC? 		 Go to CAN DTC (LOST COMMUNICATION AND COMMUNICATION BUS OFF) TABLE . Go to Step 3.
3  Fuel level sensor circuit check 
  1. Check "A1", "A2" and "A3" circuits according to Step 3 through 5 of DTC P0461  .

Is it in good condition? 		 Go to Step 4. Repair or replace defective wire harness.
4  Fuel level sensor check 
  1. Check fuel level sensor, see FUEL LEVEL SENSOR INSPECTION .

Is it in good condition? 		 Go to Step 5. Repair or replace defective parts.
5  DTC recheck 
  1. Replace combination meter, see COMBINATION METER REMOVAL AND INSTALLATION .
  2. Perform DTC confirmation procedure and check DTC.

Are DTC P0462 and P0463 still detected? 		 Replace ECM and recheck DTC, see ECM REMOVAL AND INSTALLATION . End.
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