If simulation function of M-MDS is used:
- Start the engine.
- Disconnect the vacuum hose between the purge solenoid valve and the charcoal canister.
- Put a finger to the purge solenoid valve and verify that there is no vacuum applied when the engine is cold.
- If there is a vacuum, inspect the following:
- Wiring harness and connectors (Purge solenoid valve - PCM terminal 2AB)
- Purge solenoid valve (stuck open)
- Connect the M-MDS to the DLC-2 and verify that the DTC P0403 is displayed. Perform the DTC inspection. (See
DTC TABLE
.)
- Select the EVAPCP PID.
- Increase the duty value of the purge solenoid valve to 50% and inspect if the operation sound of the valve is heard.
- If the operation sound is heard, inspect for loose or damaged vacuum hoses. (Intake manifold - purge solenoid valve - charcoal canister)
- If the operation sound is not heard, perform the purge solenoid valve inspection.
- Warm up the engine to normal operating temperature.
- Monitor the EVAPCP PID using the M-MDS, and drive the vehicle approx. 2000 rpm
for 30 s
or more.
- If the EVAPCP PID is 0%
, inspect the following.
- MAF, APP1, APP2, TP_REL and LOAD PIDs.