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Home >> Honda >> 2000 >> CR-V SE, Standard >> Repair and Diagnosis >> Engine Performance >> Testing & Diagnosis >> Engine Controls Self-Diagnostics >> Diagnostic Tests >> DTC P1457: EVAP System Leak Detected (Canister System) >> EVAP Control Canister Vent Shut Valve Test

EVAP Control Canister Vent Shut Valve Test

  1. Disconnect vacuum hose from EVAP control canister filter as illustrated. See Figure . Using backprobe set, connect a fused jumper wire between ground and PCM 32-pin connector "A" terminal No. 4 (Light Green/White wire). Turn ignition on and apply vacuum to hose. If EVAP control canister vent shut valve does not hold a vacuum, go to next step. If EVAP control canister vent shut valve holds a vacuum, EVAP control canister vent shut valve is okay at this time. Perform canister system leak test. See CANISTER SYSTEM LEAK TEST  .
  2. Turn ignition off. Disconnect EVAP control canister vent shut valve connector. Check for continuity between ground and EVAP control canister vent shut valve harness connector terminal No. 1 (Light Green/White wire). If continuity exists, go to next step. If continuity does not exist, repair open in Light Green/White wire between EVAP control canister vent shut valve and PCM 32-pin connector "A" terminal No. 4. See appropriate wiring diagram in WIRING DIAGRAMS article.
  3. Turn ignition on. Measure voltage between ground and EVAP control canister vent shut valve harness connector terminal No. 2 (Black/White wire). If battery voltage exists, replace EVAP control canister vent shut valve and "O" ring. If battery voltage does not exist, open in Black/White wire between EVAP control canister vent shut valve and No. 15 ALTERNATOR SP SENSOR (7.5-amp) fuse, located in drivers side under dash fuse/relay box. See appropriate wiring diagram in WIRING DIAGRAMS article.
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