Nissan March K13. Instruction — part 186
P0400 EGR FUNCTION
EC-205
< DTC/CIRCUIT DIAGNOSIS >
[HR12DE (TYPE 1)]
C
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EC
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5.
CHECK EGR PASSAGE
Check EGR passage for clogging and cracks.
Is the inspection result normal?
YES
>> GO TO 6.
NO
>> Repair or replace EGR passage.
6.
CHECK EGR VOLUME CONTROL VALVE
Check EGR volume control valve. Refer to
EC-207, "Component Inspection"
Is the inspection result normal?
YES
>> GO TO 7.
NO
>> Replace EGR volume control valve. Refer to
.
7.
CHECK EGR TEMPERATURE SENSOR AND CIRCUIT
Perform DTC Confirmation Procedure for DTC P0405, P0406. Refer to
.
Is the inspection result normal?
YES
>> GO TO 8.
NO
>> Repair or replace malfunctioning part.
8.
CHECK INTERMITTENT INCIDENT
Check intermittent incident. Refer to
GI-33, "Intermittent Incident"
.
>> Repair or replace malfunctioning part.
EC-206
< DTC/CIRCUIT DIAGNOSIS >
[HR12DE (TYPE 1)]
P0403 EGR VOLUME CONTROL VALVE
P0403 EGR VOLUME CONTROL VALVE
DTC Logic
INFOID:0000000005995493
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.
PRECONDITIONING
If DTC Confirmation Procedure has been previously conducted, always turn ignition switch OFF and wait at
least 10 seconds before conducting the next test.
TESTING CONDITION:
Before performing the following procedure, confirm that battery voltage is more than 10 V at idle.
>> GO TO 2.
2.
PERFORM DTC CONFIRMATION PROCEDURE
1.
Start engine and warm it up to normal operating temperature.
2.
Rev engine from idle to 2,000 rpm.
3.
Repeat step 2 for 10 times.
4.
Check DTC.
Is DTC detected?
YES
>> Go to
NO
>> INSPECTION END
Diagnosis Procedure
INFOID:0000000005995495
1.
CHECK EGR VOLUME CONTROL VALVE POWER SUPPLY CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect EGR volume control valve harness connector.
3.
Turn ignition switch ON.
4.
Check the voltage between EGR volume control valve harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> GO TO 2.
2.
DETECT MALFUNCTIONING PART
Check harness for open or short between EGR volume control valve and IPDM E/R.
>> Repair or replace harness or connectors.
3.
CHECK EGR VOLUME CONTROL VALVE OUTPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1.
Turn ignition switch OFF.
2.
Disconnect ECM harness connector.
3.
Check the continuity between EGR volume control valve harness connector and ECM harness connector.
DTC No.
Trouble diagnosis name
DTC detecting condition
Possible cause
P0403
EGR volume control valve circuit
An improper voltage signal is sent to
ECM through the valve
• Harness or connectors
(The EGR volume control valve circuit is
open or shorted.)
• EGR volume control valve
EGR volume control valve
Ground
Voltage
Connector
Terminal
F88
2
Ground
Battery voltage
5
P0403 EGR VOLUME CONTROL VALVE
EC-207
< DTC/CIRCUIT DIAGNOSIS >
[HR12DE (TYPE 1)]
C
D
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F
G
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EC
N
P
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4.
Also check harness for short to ground and short to power.
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> Repair open circuit or short to ground or short to power in harness or connectors.
4.
CHECK EGR VOLUME CONTROL VALVE
Check egr volume control valve. Refer to
EC-207, "Component Inspection"
.
Is the inspection result normal?
YES
>> GO TO 5.
NO
>> Replace EGR volume control valve. Refer to
.
5.
CHECK INTERMITTENT INCIDENT
Check intermittent incident. Refer to
GI-33, "Intermittent Incident"
.
>> Repair or replace malfunctioning part.
Component Inspection
INFOID:0000000005995496
1.
CHECK EGR VOLUME CONTROL VALVE
1.
Turn ignition switch OFF.
2.
Disconnect EGR volume control valve harness connector.
3.
Check resistance between EGR volume control valve terminal as follows.
Is the inspection result normal?
YES
>> Replace EGR volume control valve. Refer to
.
NO-1
>>
With CONSULT-III: GO TO 2.
NO-2
>>
Without CONSULT-III: GO TO 3.
2.
CHECK EGR VOLUME CONTROL VALVE OPERATION
1.
Remove EGR volume control valve.
2.
Reconnect ECM harness connector and EGR volume control valve harness connector.
3.
Turn ignition switch ON.
4.
Perform “EGR VOL CONT/V” in “ACTIVE TEST” mode with CONSULT-III.
5.
Check that EGR volume control valve shaft moves smoothly for-
ward and backward according to the valve opening steps.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Replace EGR volume control valve. Refer to
EGR volume control valve
ECM
Continuity
Connector
Terminal
Connector
Terminal
F88
1
F7
12
Existed
3
16
4
20
6
24
Terminals
Resistance [at 20
°
C (68
°
F)]
2 and 1, 3
20 – 24
Ω
5 and 4, 6
PBIA9386J
EC-208
< DTC/CIRCUIT DIAGNOSIS >
[HR12DE (TYPE 1)]
P0403 EGR VOLUME CONTROL VALVE
3.
CHECK EGR VOLUME CONTROL VALVE CLOGGING
1.
Remove EGR volume control valve.
2.
Reconnect ECM harness connector and EGR volume control valve harness connector.
3.
Turn ignition switch ON and OFF.
4.
Check that EGR volume control valve shaft moves smoothly for-
ward and backward according to the ignition switch position.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Replace EGR volume control valve. Refer to
.
PBIA9386J
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