Nissan March K13. Manual — part 187
P0405, P0406 EGRT SENSOR
EC-209
< DTC/CIRCUIT DIAGNOSIS >
[HR12DE (TYPE 1)]
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P0405, P0406 EGRT SENSOR
DTC Logic
INFOID:0000000006021959
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.
INSPECTION START
Confirm the detected DTC.
Which DTC is detected?
P0405 >> GO TO 2.
P0406 >> GO TO 4.
2.
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.
>> GO TO 3.
3.
PERFORM DTC CONFIRMATION PROCEDURE FOR DTC P0405
With CONSULT-III
1.
Turn ignition switch ON.
2.
Select “DATA MONITOR” mode with CONSULT-III.
3.
Verify that “COOLAN TEMP/S” indicates less than 50
°
C (122
°
F).
If the engine coolant temperature is above the range, cool the engine down.
CAUTION:
Do not attempt to lower the engine coolant temperature with a fan or means other than ambient air.
Doing so may produce an inaccurate diagnostic result.
4.
Start engine and let it idle for at least 8 seconds.
5.
Check 1st trip DTC.
With GST
Follow the procedure “With CONSULT-III” above.
Is 1st trip DTC detected?
YES
>> Go to
NO
>> INSPECTION END
4.
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:
Always perform the test at a temperature above -10
°
C (14
°
F).
Do you have CONSULT-III?
YES
>> GO TO 5.
NO
>> GO TO 7.
DTC No.
Trouble diagnosis name
DTC detecting condition
Possible cause
P0405
EGR temperature sen-
sor circuit low input
An excessively low voltage from the EGR
temperature sensor is sent to ECM even
when engine coolant temperature is low.
• Harness or connectors
(The EGR temperature sensor circuit is
shorted.)
• EGR temperature sensor
• Malfunction of EGR function
P0406
EGR temperature sen-
sor circuit high input
An excessively high voltage from the EGR
temperature sensor is sent to ECM even
when engine coolant temperature is high.
• Harness or connectors
(The EGR temperature sensor circuit is
open.)
• EGR temperature sensor
• Malfunction of EGR function
EC-210
< DTC/CIRCUIT DIAGNOSIS >
[HR12DE (TYPE 1)]
P0405, P0406 EGRT SENSOR
5.
CHECK EGR VOLUME CONTROL VALVE FUNCTION
With CONSULT-III
1.
Start the engine and warm it up to normal operating temperature.
2.
Perform “POWER BALANCE” in “ACTIVE TEST” mode with CONSULT-III.
3.
Keeping engine speed at 2,500 rpm.
4.
Touch “Qu” and set the EGR volume control valve opening to 10 step.
5.
Check “EGR TEMP SEN” indication should decrease to less than 1.0 V.
Is the inspection result normal?
YES
>> GO TO 6.
NO
>> Go to
6.
PERFORM DTC CONFIRMATION PROCEDURE FOR DTC P0406
With CONSULT-III
1.
Turn ignition switch OFF and wait at least 10 seconds.
2.
Start the engine and select “DATA MONITOR” mode with CONSULT-III.
3.
Drive the vehicle for at least 5 consecutive seconds under the following conditions.
CAUTION:
Always drive vehicle at a safe speed.
4.
Check 1st trip DTC.
Is 1st trip DTC detected?
YES
>> Go to
NO
>> INSPECTION END
7.
PERFORM DTC CONFIRMATION PROCEDURE FOR DTC P0406
With GST
1.
Start engine and warm it up to normal operating temperature.
2.
Turn ignition switch OFF and wait at least 10 seconds.
3.
Select Service $01 with GST and maintain the following conditions for at least 5 consecutive seconds.
CAUTION:
Always drive vehicle at a safe speed.
4.
Check 1st trip DTC.
Is 1st trip DTC detected?
YES
>> Go to
NO
>> INSPECTION END
Diagnosis Procedure
INFOID:0000000006021960
1.
CHECK EGR TEMPERATURE SENSOR POWER SUPPLY CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect EGR temperature sensor harness connector.
3.
Turn ignition switch ON.
4.
Check the voltage between EGR temperature sensor harness connector and ground.
ENG SPEED
1,000 - 3,200 rpm
VHCL SPEED SE
More than 10 km/h (6 mph)
B/FUEL SCHDL
4.0 - 12.0 msec
Selector lever
Suitable position
Engine speed
1,000 - 3,200 rpm
Vehicle speed
10 km/h (6 MPH) or more
Shift lever
Suitable position
P0405, P0406 EGRT SENSOR
EC-211
< DTC/CIRCUIT DIAGNOSIS >
[HR12DE (TYPE 1)]
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Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Repair open circuit or short to ground or short to power in harness or connector.
2.
CHECK EGR TEMPERATURE SENSOR GROUND CIRCUIT FOR OPEN AND SHORT
1.
Turn ignition switch OFF.
2.
Disconnect ECM harness connector.
3.
Check the continuity between EGR temperature sensor harness connector and ECM harness connector.
4.
Also check harness for short to ground and short to power.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Repair open circuit or short to ground or short to power in harness or connectors.
3.
CHECK EGR TEMPERATURE SENSOR
Check EGR temperature sensor. Refer to
EC-211, "Component Inspection"
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> Replace EGR temperature sensor. Refer to
.
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:0000000006021961
1.
CHECK EGR TEMPERATURE SENSOR
1.
Turn ignition switch OFF.
2.
Disconnect EGR temperature sensor harness connector.
3.
Remove EGR temperature sensor.
4.
Check resistance between EGR temperature sensor terminals
by heating with hot water as shown in the figure.
Is the inspection result normal?
EGR temperature sensor
Ground
Voltage
Connector
Terminal
F73
1
Ground
Battery voltage
EGR temperature sensor
ECM
Continuity
Connector
Terminal
Connector
Terminal
F73
2
F16
51
Existed
+
-
Condition
Resistance
Terminals
1
2
Temperature(
°
C)
0
0.66 - 1.00 M
Ω
50
0.068 - 0.089 M
Ω
100
0.012 - 0.014 M
Ω
PBIA9400J
EC-212
< DTC/CIRCUIT DIAGNOSIS >
[HR12DE (TYPE 1)]
P0405, P0406 EGRT SENSOR
YES
>> INSPECTION END
NO
>> Replace EGR temperature sensor. Refer to
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