Nissan Primera P11. Instruction — part 174
CONSULT-II Reference Value in Data Monitor
Mode
NCEC0506
Specification data are reference values.
MONITOR ITEM
CONDITION
SPECIFICATION
EGR VOL CON/V
I
Engine: After warming up
I
Shift lever: “N”
I
No-load
Idle
0 step
Revving engine up to 3,000 rpm
quickly
10 - 55 step
ECM Terminals and Reference Value
NCEC0507
Specification data are reference values and are measured between
each terminal and ground.
CAUTION:
Do not use ECM ground terminals when measuring input/
output voltage. Doing so may result in damage to the ECM’s
transistor. Use a ground other than ECM terminals, such as
the ground.
TERMI-
NAL
NO.
WIRE
COLOR
ITEM
CONDITION
DATA (DC Voltage)
8
9
17
18
W/B
SB
G/R
R/Y
EGR volume control valve
[Engine is running]
I
Warm-up condition
I
Rev engine up from 2,000 to 4,000 rpm
0 - 14V
On Board Diagnosis Logic
NCEC0508
DTC No.
Malfunction is detected when ...
Check Items (Possible Cause)
P0403
0403
I
An improper voltage signal is sent to ECM through the
valve.
I
Harness or connectors
(The EGR volume control valve circuit is open or
shorted.)
I
EGR volume control valve
DTC Confirmation Procedure
NCEC0509
NOTE:
If “DTC Confirmation Procedure” has been previously conducted,
always turn ignition switch “OFF” and wait at least 9 seconds
before conducting the next test.
With CONSULT-II
1)
Turn ignition switch “ON”.
2)
Select “DATA MONITOR” mode with CONSULT-II.
3)
Start engine and warm it up to normal operating temperature.
4)
Rev engine from idle to 2,000 rpm 20 times.
NEF110A
DTC P0403 EGR VOLUME CONTROL VALVE (CIRCUIT)
(IF SO EQUIPPED)
QG16
I
18DE
CONSULT-II Reference Value in Data Monitor Mode
EC-253
If 1st trip DTC is detected, go to “Diagnostic Procedure”, EC-
QG-256.
With GST
Follow the procedure “With CONSULT-II” above.
DTC P0403 EGR VOLUME CONTROL VALVE (CIRCUIT)
(IF SO EQUIPPED)
QG16
I
18DE
DTC Confirmation Procedure (Cont’d)
EC-254
Wiring Diagram
NCEC0510
YEC782
: Detectable line for DTC
: Non-detectable line for DTC
ECM
ECM RELAY
EGR
VOLUME
CONTROL
VALVE
Refer to
EL-POWER.
BATTERY
DTC P0403 EGR VOLUME CONTROL VALVE (CIRCUIT)
(IF SO EQUIPPED)
QG16
I
18DE
Wiring Diagram
EC-255
Diagnostic Procedure
NCEC0511
1
CHECK POWER SUPPLY
1. Disconnect EGR volume control valve harness connector.
2. Turn ignition switch “ON”.
3. Check voltage between terminals 2, 5 and ground with CONSULT-II or tester.
SEF556W
Voltage: Battery voltage
OK or NG
OK
©
GO TO 2.
NG
©
Check the following.
I
Harness or connectors E90, F73
I
Harness for open or short between EGR volume control valve and engine control
module relay
If NG, repair harness or connectors.
2
CHECK OUTPUT SIGNAL CIRCUIT
1. Turn ignition switch “OFF”.
2. Disconnect ECM harness connector.
3. Check harness continuity between
ECM terminal 8 and EGR volume control valve terminal 1,
ECM terminal 9 and EGR volume control valve terminal 4,
ECM terminal 17 and EGR volume control valve terminal 3,
ECM terminal 18 and EGR volume control valve terminal 6.
Refer to wiring diagram.
Continuity should exist.
If OK, check harness for short to ground and short to power.
OK or NG
OK
©
GO TO 3.
NG
©
Repair open circuit, short to ground or short to power in harness connectors.
3
CHECK EGR VOLUME CONTROL VALVE
Refer to “Component Inspection”, EC-QG-257.
OK or NG
OK
©
GO TO 4.
NG
©
Replace EGR volume control valve.
4
CHECK INTERMITTENT INCIDENT
Perform “TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT”, EC-QG-102.
©
INSPECTION END
DTC P0403 EGR VOLUME CONTROL VALVE (CIRCUIT)
(IF SO EQUIPPED)
QG16
I
18DE
Diagnostic Procedure
EC-256
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