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Home >> Suzuki >> 2002 >> Esteem GL, 4D Sedan, Standard >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Self-Diagnostics - 1.8L >> Diagnostic Tests >> DTC P0445: EVAP System Purge Control Valve - Short Circuit >> Diagnosis & Repair Procedure
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Diagnosis & Repair Procedure

  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-CPV 2-pin harness connector. EVAP-CPV is located on end of intake manifold. Measure voltage between ground and EVAP-CPV harness connector terminal No. 2 (Red/Black wire). Voltage should be 10-14 volts. If voltage is as specified, leave harness connector disconnected and go to next step. If voltage is not as specified, check for and repair open or short to ground in Red/Black wire between EVAP-CPV, main relay and ECM. See WIRING DIAGRAMS article. If problem is found, repair as necessary. After repair, repeat DTC CONFIRMATION TEST  .
  3. Check EVAP-CPV circuit operation. See EVAP CANISTER PURGE VALVE under FUEL EVAPORATION in SYSTEM & COMPONENT TESTING article. If problem is found, replace EVAP-CPV. 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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