LEMON Manuals: Even more car manuals for everyone
Home >> Mazda >> 2002 >> Tribute LX, 4WD >> Repair and Diagnosis >> Engine Performance >> Testing & Diagnosis >> Engine Controls - Self-Diagnostics >> Diagnostic Tests >> DTC P0457: EVAP System - Malfunction >> Diagnostic Procedures

Diagnostic Procedures

  1. If QUICK TEST was not performed, go to QUICK TEST  under SELF-DIAGNOSTIC SYSTEM. If QUICK TEST was performed, go to next step.

  2. Check For Missing Or Leaking Fuel Filler Cap

    Check for missing or loose fuel filler cap. Check for possible cross-threaded fuel filler cap. If a concern is present, repair or replace as necessary. After repair, go to next step. If a concern is not present, go to step  4.

  3. EVAP System Leak Test

    Perform EVAP system leak test. Refer to EVAPORATIVE EMISSIONS SYSTEM LEAK TEST under SYSTEM TESTS (EVAPORATIVE EMISSION) in SYSTEM & COMPONENT TESTING - B2300, B3000, B4000 & TRIBUTE article. If test result is okay, go to next step. If test result is not okay, go to DTC P0455 OR P1443  trouble shooting.

  4. Drive Cycle

    Reconnect all disconnected connectors. Clear DTCs from PCM memory using scan tool generic OBD-II function. Perform EVAP System Monitor Drive Cycle. Refer to EVAP RUNNING LOSS SYSTEM REPAIR VERIFICATION DRIVE CYCLE  under MONITOR REPAIR VERIFICATION DRIVE CYCLES. Retrieve pending code. If DTC P0455 and P0457 are not present, go to next step. If DTC P0455 and P0457 are still present, go to DTC P0455 OR P1443  trouble shooting.

  5. Verify Trouble Shooting Of DTCs Completed

    Perform PCM Quick Test. If any DTC is present, go to applicable procedure for other DTCs. See DIAGNOSTIC TROUBLE CODE DEFINITIONS . If no DTCs are set, trouble shooting is complete. Advise customer that it is important and necessary to tighten fuel filler cap after refueling.
scientia non olet · About LEMON Manuals