Engine Controls - System & Component Testing: Maintenance Mazda MX-5 NB рестайлинг

Canister Drain Cut Valve (CDCV)

1. Airflow Inspection Disconnect CDCV 2-pin harness connector and remove CDCV, located next to charcoal canister under vehicle at spare tire well. see scheme 98 Blow air into CDCV port "A". (Scheme 90) Air should flow from port "B". Using fused jumper wires, apply battery voltage to CDCV terminals. Blow air into port "A". Air should not flow from port "B". If CDCV is operating as specified, check for open or short circuit. Go to next step. If CDCV does not operate as specified, replace CDCV.
2. Open Circuit Inspection Remove PCM. Disconnect PCM 104-pin harness connector. Connect 104-Pin Breakout Box (49-UN01-130) to PCM harness connector only. see scheme 19 Check for continuity between following terminals: CDCV harness connector terminal "A" and main relay 4-pin harness connector terminal "D" (White/Red wire). CDCV harness connector terminal "B" (Blue/Orange wire) and breakout box terminal No. 18 (Yellow wire) through common connector.
3. Short Circuit Inspection Check for continuity between following: CDCV harness connector terminal "A" and main relay 4-pin harness connector terminal "D" (White/Red wire) to ground. CDCV harness connector terminal "B" (Blue/Orange wire) and breakout box terminal No. 18 (Yellow wire) through common connector to ground. If continuity is present, repair short circuit in suspect wire or replace wire harness.

Scheme 90