Nissan Almera Tino V10. Manual — part 578
EC-1138
[YD (WITH EURO-OBD)]
DTC P0401 EGR FUNCTION
3.
CHECK EGR VOLUME CONTROL VALVE POWER SUPPLY CIRCUIT-III
1.
Turn ignition switch OFF.
2.
Disconnect ECM relay.
3.
Check voltage between ECM relay terminal 3 and ground with
CONSULT-II or tester.
OK or NG
OK
>> GO TO 5.
NG
>> GO TO 4.
4.
DETECT MALFUNCTIONING PART
Check the following.
●
Harness connectors E125, M82 (LHD models)
●
Harness connectors E145, M80 (RHD models)
●
10A fuse
●
Harness for open or short between ECM relay and battery
>> Repair open circuit or short to ground or short to power in harness or connectors.
5.
CHECK EGR VOLUME CONTROL VALVE POWER SUPPLY CIRCUIT-IV
1.
Check harness continuity between ECM relay terminal 5 and EGR volume control valve terminals 2, 5.
Refer to Wiring Diagram.
2.
Also check harness for short to ground and short to power.
OK or NG
OK
>> GO TO 7.
NG
>> GO TO 6.
6.
DETECT MALFUNCTIONING PART
Check the following.
●
Harness connectors F45, M71
●
Harness for open or short between ECM relay and EGR volume control valve
>> Repair open circuit or short to ground or short to power in harness or connectors.
MBIB0922E
Voltage: Battery voltage
PBIB0432E
Continuity should exist.
DTC P0401 EGR FUNCTION
EC-1139
[YD (WITH EURO-OBD)]
C
D
E
F
G
H
I
J
K
L
M
A
EC
7.
CHECK ECM RELAY
Refer to
EC-1174, "Component Inspection"
.
OK or NG
OK
>> GO TO 8.
NG
>> Replace ECM relay.
8.
CHECK EGR VOLUME CONTROL VALVE OUTPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1.
Turn ignition switch OFF.
2.
Disconnect ECM harness connector.
3.
Check harness continuity between ECM terminals and EGR volume control valve terminals as follows.
Refer to Wiring Diagram.
4.
Also check harness for short to ground and short to power.
OK or NG
OK
>> GO TO 9.
NG
>> Repair open circuit or short to ground or short to power in harness or connectors.
9.
CHECK EGR VOLUME CONTROL VALVE
Refer to
EC-1140, "Component Inspection"
.
OK or NG
OK
>> GO TO 10.
NG
>> Replace EGR volume control valve.
10.
CHECK EGR PASSAGE
Check the following for clogging and cracks.
●
EGR tube
●
EGR hose
OK or NG
OK
>> GO TO 11.
NG
>> Repair or replace EGR passage.
11.
CHECK INTERMITTENT INCIDENT
Refer to
EC-1002, "TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT"
.
>> INSPECTION END
ECM terminal
EGR volume control valve terminal
25
1
26
6
27
3
28
4
Continuity should exist.
EC-1140
[YD (WITH EURO-OBD)]
DTC P0401 EGR FUNCTION
Component Inspection
EBS013DO
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.
6.
Perform “EGR VOL CONT/V” in “ACTIVE TEST” mode with CONSULT-II. Check that EGR volume control
valve shaft moves smoothly forward and backward according to the valve opening.
If NG, replace the EGR volume control valve.
NOTE:
When installing the EGR volume control valve, make sure that the shaft is in the same position before
checking.
Temperature
°
C (
°
F)
Resistance
Ω
20 (68)
13 - 17
MBIB0007E
SEF819Y
DTC P0401 EGR FUNCTION
EC-1141
[YD (WITH EURO-OBD)]
C
D
E
F
G
H
I
J
K
L
M
A
EC
Without 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 and OFF.
6.
Check that EGR volume control valve shaft moves smoothly for-
ward and backward according to the ignition switch position.
If NG, replace EGR volume control valve.
NOTE:
When installing the EGR volume control valve, make sure that
the shaft is in the same position before checking.
Removal and Installation
EBS013DP
EGR VOLUME CONTROL VALVE
Refer to
.
Temperature
°
C (
°
F)
Resistance
Ω
20 (68)
13 - 17
MBIB0007E
SEF560W
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