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Home >> Suzuki >> 2002 >> XL-7 Plus >> Repair and Diagnosis >> External Pages >> Different car >> Section 17 (Engine Controls - Self-Diagnostics - 1.8L) >> Diagnostic Tests >> DTC P0448: EVAP System Vent Control - Vent Control Circuit Shorted >> Diagnosis & Repair Procedure
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Diagnosis & Repair Procedure

WARNING: This page is about a different car, the 2002 Suzuki Esteem. However, it is still accessible from the selected car via links, so may be relevant.
  1. If engine system check has been performed, go to next step. If engine system check has not been performed, go to A4: ENGINE SYSTEM CHECK  under SYSTEM TESTS.
  2. Turn ignition off. Disconnect EVAP-CVV 2-pin harness connector. EVAP-CVV is located under vehicle near EVAP canister. Turn ignition on. Measure voltage between ground and EVAP-CVV harness connector terminal No. 1 (Yellow/Black wire). If voltage is 10-14 volts, repair short to voltage in Yellow/Black wire between EVAP-CVV and ECM. See WIRING DIAGRAMS article. After repair, repeat DTC CONFIRMATION TEST  .
  3. Check EVAP-CVV operation. See appropriate procedure under EMISSION SYSTEMS & SUB-SYSTEMS in SYSTEM & COMPONENT TESTING article. If problem is found, replace EVAP-CVV. If no problem is found, substitute a known good ECM, and repeat DTC CONFIRMATION TEST  . If DTC does not reset, testing is complete.
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