P0447

: P0447. CANISTER CLOSE VALVE CIRCUIT OPEN CIRCUIT

G92425t11 : CHECK SUPPLY VOLTAGE TO CCV
1. Disconnect canister close valve electrical connector, FT5.
2. Turn the ignition switch to the ON position.
3. Measure the voltage at FT5, pin 1 (GU).

- Is the voltage greater than 10 volts?

-> Yes

-> No
REPAIR the circuit between FT5, pin 1 (GU) and the EMS control relay. CLEAR the DTC. Turn the ignition switch to the ON position. Leave switched on for minimum 30 seconds. RECHECK DTCs.

G92425t12 : CHECK THE CCV SIGNAL WIRE FOR CONTINUITY.
1. Disconnect the ECM electrical connector, EN16.
2. Measure the resistance between EN16, pin 67 (0) and FT5, pin 2 (0).

- Is the resistance less than 5 ohms?

-> Yes

-> No
REPAIR the circuit between EN16, pin 67 (0) and FT5, pin 2 (0). CLEAR the DTC. Turn the ignition switch to the ON position. Leave switched on for minimum 30 seconds. RECHECK DTCs.

G92425t24 : CHECK THE CCV SIGNAL WIRE FOR SHORT TO BATTERY
1. Turn the ignition switch to the ON position.
2. CHECK for a voltage at FT5, pin 2 (0).

- Is the voltage greater than 1 volt?

-> Yes
REPAIR the short to battery. CLEAR the DTC. Turn the ignition switch to the ON position. Leave switched on for minimum 30 seconds. RECHECK DTCs.

-> No

G92425t13 : CHECK THE CCV RESISTANCE
1. CHECK the resistance between pins 1 and 2 of the CCV.

- Is the resistance 25 to 30 Ohms at 20 degrees C (68 degrees F)?

-> Yes
INSTALL a new ECM. Before replacing a ECM, contact Dealer technical support.

-> No
INSTALL a new CCV. CLEAR the DTC. Turn the ignition switch to the ON position. Leave switched on for minimum 30 seconds. RECHECK DTCs.