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EC-1078
[YD (WITH EURO-OBD)]
DTC P0401 EGR FUNCTION
4. CHECK EGR VOLUME CONTROL VALVE
Refer to EC-1078, "
Component Inspection" .
OK or NG
OK >> GO TO 5.
NG >> Replace EGR volume control valve.
5. CHECK EGR PASSAGE
Check the following for clogging and cracks.
● EGR tube
● EGR hose
● EGR cooler
OK or NG
OK >> GO TO 6.
NG >> Repair or replace EGR passage.
6. CHECK INTERMITTENT INCIDENT
Refer to EC-936, "
TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT" .
>> INSPECTION END
Component Inspection EBS011V3
EGR VOLUME CONTROL VALVE
With CONSULT-II
1. Disconnect EGR volume control valve harness connector.
2. Check resistance between the following terminals.
● terminal 2 and terminals 1, 3
● terminal 5 and terminals 4, 6
If NG, replace EGR volume control valve.
If OK, go to next step.
3. Remove EGR volume control valve from cylinder head.
4. Reconnect EGR volume control valve harness connector.
5. Turn ignition switch ON.
Temperature °C (°F) Resistance Ω
20 (68) 13 - 17
PBIB2014E
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