P0445

DTC P0445: Evaporative Emission Control System Purge Control Valve Circuit Shorted

Wiring Diagram










DTC Detecting Condition and Trouble Area






DTC Confirmation Procedure

WARNING:

- When performing a road test, select a place where there is no traffic or possibility of a traffic accident and be very careful during testing to avoid occurrence of an accident.
- Road test should be carried out with 2 persons, a driver and tester, on a level road.

1) With ignition switch turned OFF, connect scan tool to DLC.
2) Turn ON ignition switch and clear DTC using scan tool.
3) Start engine and warm it up to normal operating temperature.
4) Drive vehicle at 40 mph (60 km/h) with keeping throttle valve opening constant for 3 min.
5) Stop vehicle and check DTC and pending DTC.

DTC Troubleshooting

WARNING:

In order to reduce risk of fire and personal injury, this work must be performed in a well ventilated area and away from any open flames such as gas hot water.

1.
Was "Engine System Check" performed?
YES
Go to Step 2.
NO
Go to Engine System Check Engine System Check.

2. Check EVAP canister purge power supply circuit.

Disconnect connector from ECM with ignition switch turned OFF.
Disconnect connector from EVAP canister purge valve.
Turn ON ignition switch, measure voltage between vehicle body ground and "C46-6" terminal in ECM harness connector.

Is it voltage 0 V?
YES
Go to Step 3.
NO
"BLK/RED" wire shorted to power supply circuit and faulty ECM.

3. Check EVAP canister purge control valve.

Check EVAP canister purge control valve referring to EVAP Canister Purge Valve Inspection EVAP Canister Purge Valve Inspection.

Is it good condition?
YES
Go to Step 4.
NO
Faulty EVAP canister purge control valve and ECM.

4. Check EVAP canister purge control circuit.

With ignition switch turned OFF, measure resistance between "G04-8" (or "G04-23") terminal wire and "C46-6" terminal in ECM harness connector.

Is resistance above 30 ohms at 20 °C, 68 °F?
YES
Faulty ECM, substitute a known-good ECM and recheck.
NO
Shorted circuit between "BLK/RED" and "BLU/BLK" wire and faulty ECM.