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Diagnostic Procedure 1. CHECK DTC • Turn ignition switch on, with the scan tool, view and erase stored DTCs in the IC. • Turn ignition switch off, and wait a few seconds, then turn ignition switch on. • With the scan tool, view DTCs in the IC. Is DTC U0303 present? Yes >> Go to the next step. No >> The conditions that caused this DTC to set are not present at this time (See Intermittent DTC Trouble- shooting in Section 15 Body & Accessories for more information). 2. CHECK FUEL LEVEL SENSOR ELECTRICAL CONNECTOR • Turn ignition switch off. • Disconnect the fuel level sensor and fuel pump assembly electrical connector (3). • Inspect the electrical connector for damage. Is the electrical connector OK? Yes >> Go to the next step. No >> Repair or replace the electrical connector as necessary. 3. CHECK FUEL LEVEL SENSOR REFERENCE VOLTAGE • Turn ignition switch on. • Check the fuel level sensor reference voltage between the fuel level sensor connector B-032, ter- • The voltage (less than 1 V) should exist. Is there voltage present? Yes >> Go to step 5. No >> Go to the next step. DIAGNOSIS & TESTING LTSM040002 LTSMD150001 15
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