DTC Confirmation Procedure
- CHECK DTC PRIORITY
If DTC P0441 is displayed with other DTC such as P2122, P2123, P2127, P2128 or P2138, first perform the confirmation procedure (trouble diagnosis) for other DTC.
Is DTC P2122, P2123, P2127, P2128 or P2138 detected?
YES
Perform diagnosis of applicable.
- DTC P2122: Refer to DTC Description .
- DTC P2123: Refer to DTC Description .
- DTC P2127: Refer to DTC Description .
- DTC P2128: Refer to DTC Description .
- DTC P2138: Refer to DTC Description .
NO
GO TO 2.
- PERFORM COMPONENT FUNCTION CHECK NOTE: Use component function check to check the overall monitoring function of the EVAP control system purge flow monitoring. During this check, a 1st trip DTC might not be confirmed.
- Lift up drive wheels.
- Start engine (VDC switch OFF) and warm it up to normal operating temperature.
- Turn ignition switch OFF and wait at least 10 seconds.
- Turn ignition switch ON.
- Turn ignition switch OFF and wait at least 10 seconds.
- Start engine and wait at least 70 seconds.
- Set voltmeter probes to ECM harness connector terminals as per the following.
ECM
Connector
+
-
Terminal
E16
173
200
- Check EVAP control system pressure sensor value at idle speed and note it.
- Establish and maintain the following conditions for at least 1 minute.
Air conditioner switch
ON
Headlamp switch
ON
Rear window defogger switch
ON
Engine speed
Approx. 3, 000 RPM
Gear position
Any position other than P, N or R
- Verify that EVAP control system pressure sensor value stays 0.1 V less than the value at idle speed (measured at step 8) for at least 1 second.
Is the inspection result normal?
YES
To check malfunction symptom before repair: Refer to Intermittent Incident .
YES
Confirmation after repair: INSPECTION END
NO
Proceed to Diagnosis Procedure .