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Home >> Honda >> 2000 >> CR-V SE, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 2 (Engine Controls - Self-Diagnostics) >> Diagnostic Tests >> DTC P1456: EVAP System Leak Detected >> EVAP Control Canister Vent Shut Valve (VSV) Test

EVAP Control Canister Vent Shut Valve (VSV) Test

WARNING: This page is about a different car, the 2000 Honda Prelude. However, it is still accessible from the selected car via links, so may be relevant.
  1. Disconnect vacuum hose from EVAP control canister filter. See Fig 1 . Turn ignition on and apply vacuum to hose. If EVAP control canister VSV holds a vacuum, go to next step. If EVAP control canister VSV does not hold a vacuum, EVAP control canister VSV is okay at this time. Perform vacuum hoses and connections test. See VACUUM HOSES & CONNECTIONS TEST  .
  2. Turn ignition off. Disconnect EVAP control canister VSV connector. Check for continuity between ground and EVAP control canister VSV harness connector terminal No. 2 (Orange/Green wire). If continuity exists, go to next step. If continuity does not exist, replace EVAP control canister VSV and "O" rings.
  3. Disconnect PCM 32-pin connector "A". See Figure . Check for continuity between ground and EVAP control canister VSV harness connector terminal No. 2 (Orange/Green wire). If continuity exists, repair short in Orange/Green wire between EVAP control canister VSV and PCM 32-pin connector "A" terminal No. 29. If continuity does not exist, substitute a known-good PCM and recheck. See SUBSTITUTING PCM under SELF-DIAGNOSTIC SYSTEM in SELF-DIAGNOSTICS - INTRODUCTION article. If symptom or problem goes away, replace original PCM.
Fig 1: Locating EVAP Control Canister Filter Vacuum Hose
G99E08965Courtesy of AMERICAN HONDA MOTOR CO., INC.
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