Canister Vent Valve: Testing and Inspection
CANISTER DRAIN CUT VALVE (CDCV) INSPECTIONSimulation Test
1. Carry out the "Evaporative Emission Control System Inspection". (See Evaporative System Leak Inspection Using Vacuum Pump.) (See Evaporative System Leak Inspection Using Vacuum Pump.)
- If not as specified, perform the following inspection for the CDCV.
Airflow Inspection
NOTE: Perform the following test only when directed.
1. Disconnect the negative battery cable.
2. Remove the CDCV.
3. Inspect airflow between the ports under the following conditions.
- If not as specified, replace the CDCV.
- If as specified but the "Simulation Test" is failed, inspect evaporative hoses for improper routing, kinks or leakage, and carry out the "Circuit Open/Short Inspection" and repair or replace the parts if necessary.
Circuit Open/Short Inspection
1. Remove the PCM.
2. Connect the SST (104 Pin Breakout Box) to the PCM as shown.
3. Tighten the connector attaching screw.
Tightening torque
7.9 - 10.7 N.m {80 - 110 kgf.cm, 69.5 - 95.4 in.lbf}
4. Inspect for an open or short circuit in the following wiring harnesses by probing the applicable sensor and SST (104 Pin Breakout Box) terminals with ohmmeter leads.
Open circuit
- GND circuit (CDCV connector terminal B and PCM connector terminal 18 through common connector)
- Power circuit (CDCV connector terminal A and main relay connector terminal D)
Short circuit
- GND circuit (CDCV connector terminal B and PCM connector terminal 18 through common connector to GND)
- Power circuit (CDCV connector terminal A and main relay connector terminal D to GND)
5. Install the CDCV.
6. Connect the negative battery cable.