NISSAN X-TRAIL 2003 Service Repair Manual

DTC P0404 EGR VOLUME CONTROL VALVE
EC-1083
[YD (WITH EURO-OBD)]
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Wiring DiagramEBS011P9
TBWA0579E

EC-1084
[YD (WITH EURO-OBD)]
DTC P0404 EGR VOLUME CONTROL VALVE

Diagnostic ProcedureEBS011PA
1. CHECK EGR VOLUME CONTROL VALVE POWER SUPPLY CIRCUIT-I
1. Turn ignition switch OFF.
2. Disconnect EGR volume control valve harness connector.
3. Turn ignition switch ON.
4. Check voltage between EGR volume control valve terminals 2, 5
and ground with CONSULT-II or tester.
OK or NG
OK >> GO TO 3.
NG >> GO TO 2.
2. DETECT MALFUNCTIONING PART
Check the following.

Harness connectors F30, M63

Harness for open or short between EGR volume control valve and ECM

Harness for open or short between EGR volume control valve and ECM relay
>> Repair open circuit or short to ground or short to power in 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 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 4.
NG >> Repair open circuit or short to ground or short to power in harness or connectors.
PBIB1901E
Voltage: Battery voltage
PBIB2013E
ECM terminal EGR volume control valve terminal
25 1
26 6
27 3
28 4
Continuity should exist.

DTC P0404 EGR VOLUME CONTROL VALVE
EC-1085
[YD (WITH EURO-OBD)]
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4. CHECK EGR VOLUME CONTROL VALVE
Refer to EC-1085, "
Component Inspection" .
OK or NG
OK >> GO TO 5.
NG >> Replace EGR volume control valve.
5. CHECK INTERMITTENT INCIDENT
Refer to EC-936, "
TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT" .
>>INSPECTION END
Component InspectionEBS011PB
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
PBIB2014E
SEF819Y

EC-1086
[YD (WITH EURO-OBD)]
DTC P0404 EGR VOLUME CONTROL VALVE

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 smoothy 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 InstallationEBS011PC
EGR VOLUME CONTROL VALVE
Refer to EM-136, "INTAKE MANIFOLD" .
Temperature °C (°F) Resistance Ω
20 (68) 13 - 17
PBIB2014E
SEF560W

DTC P0563 BATTERY VOLTAGE
EC-1087
[YD (WITH EURO-OBD)]
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DTC P0563 BATTERY VOLTAGEPFP:24410
On Board Diagnosis LogicEBS011BS
This self-diagnosis has the one trip detection logic.
The MI will not light up for this self-diagnosis.
DTC Confirmation ProcedureEBS011BT
NOTE:
If DTC Confirmation Procedure has been previously conducted, always turn ignition switch OFF and wait at
least 10 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 let it idle for at least 35 seconds.
4. If DTC is detected, go to EC-1087, "
Diagnostic Procedure" .
WITH GST
Follow the procedure “WITH CONSULT-II” above.
Diagnostic ProcedureEBS011BU
1. INSPECTION START
Are jumper cables connected for the jump starting?
Ye s o r N o
Ye s > > G O T O 3 .
No >> GO TO 2.
2. CHECK BATTERY AND ALTERNATOR
Check that the proper type of battery and alternator is installed.
Refer to , SC-3, "
BATTERY" and SC-12, "CHARGING SYSTEM" .
OK or NG
OK >> GO TO 5.
NG >> Replace with a proper one.
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P0563 Battery voltage highAn excessively high voltage from the battery is
sent to ECM.

Battery

Battery terminal

Alternator
SEF817Y

EC-1088
[YD (WITH EURO-OBD)]
DTC P0563 BATTERY VOLTAGE

3. CHECK JUMPER CABLES INSTALLATION
Check that the jumper cables are connected in the correct sequence.
OK or NG
OK >> GO TO 4.
NG >> Reconnect jumper cables properly.
4. CHECK BATTERY FOR BOOSTER
Check that the battery for the booster is a 12V battery.
OK or NG
OK >> GO TO 5.
NG >> Change the vehicle for booster.
5. PERFORM DTC CONFIRMATION PROCEDURE AGAIN
Perform EC-1087, "
DTC Confirmation Procedure" , again.
OK or NG
OK >> GO TO 7.
NG >> GO TO 6.
6. REPLACE ECM
1. Replace ECM.
2. Perform initialization of NATS system and registration of all NATS ignition key IDs. Refer to EC-896,
"NATS (Nissan Anti-theft System)" .
3. Perform Fuel Pump Learning Value Clearing. Refer to EC-890, "
Fuel Pump Learning Value Clearing" .
>>INSPECTION END
7. CHECK ELECTRICAL PARTS DAMAGE
Check the following for damage.

Wiring harness and harness connectors for burn

Fuses for short
OK or NG
OK >>INSPECTION END
NG >> Repair or replace malfunctioning part.
SEF439Z

DTC P0605 ECM
EC-1089
[YD (WITH EURO-OBD)]
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DTC P0605 ECMPFP:23710
DescriptionEBS011BV
The ECM consists of a microcomputer and connectors for signal
input and output and for power supply. The ECM controls the engine.
On Board Diagnosis LogicEBS011BW
DTC Confirmation ProcedureEBS011BX
NOTE:
If DTC Confirmation Procedure has been previously conducted, always turn ignition switch OFF and wait at
least 10 seconds before conducting the next test.
WITH CONSULT-II
1. Turn ignition switch ON.
2. Select “DATA MONITOR” mode with CONSULT-II.
3. Wait at least 5 seconds.
4. If 1st trip DTC is detected, go to EC-1090, "
Diagnostic Proce-
dure" .
WITH GST
Follow the procedure “WITH CONSULT-II” above.
MBIB0625E
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P0605Engine control module
(ROM)ECM ROM is malfunctioning.

ECM
SEF817Y

EC-1090
[YD (WITH EURO-OBD)]
DTC P0605 ECM

Diagnostic ProcedureEBS011BY
1. INSPECTION START
With CONSULT-II
1. Turn ignition switch ON.
2. Select “SELF DIAG RESULTS” mode with CONSULT-II.
3. Touch “ERASE”.
4. Perform EC-1089, "
DTC Confirmation Procedure" , again.
5. Is 1st trip DTC P0605 displayed again?
With GST
1. Turn ignition switch ON.
2. Select MODE4 with GST.
3. Touch “ERASE”.
4. Perform EC-1089, "
DTC Confirmation Procedure" , again.
5. Is DTC P0605 displayed again?
Ye s o r N o
Yes >> GO TO 2.
No >>INSPECTION END
2. REPLACE ECM
1. Replace ECM.
2. Perform initialization of NATS system and registration of all NATS ignition key IDs. Refer to EC-896,
"NATS (Nissan Anti-theft System)" .
3. Perform Fuel Pump Learning Value Clearing. Refer to EC-890, "
Fuel Pump Learning Value Clearing" .
>>INSPECTION END

DTC P0606 ECM
EC-1091
[YD (WITH EURO-OBD)]
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DTC P0606 ECMPFP:23710
DescriptionEBS011BZ
The ECM consists of a microcomputer and connectors for signal
input and output and for power supply. The ECM controls the engine.
On Board Diagnosis LogicEBS011C0
DTC Confirmation ProcedureEBS011C1
NOTE:
If DTC Confirmation Procedure has been previously conducted, always turn ignition switch OFF and wait at
least 10 seconds before conducting the next test.
WITH CONSULT-II
1. Turn ignition switch ON.
2. Select “DATA MONITOR” mode with CONSULT-II.
3. Wait at least 5 seconds.
4. If DTC is detected, go to EC-1092, "
Diagnostic Procedure" .
WITH GST
Follow the procedure “WITH CONSULT-II” above.
MBIB0625E
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P0606Engine control module
(Processor)ECM calculation function is malfunctioning.

ECM
SEF817Y

EC-1092
[YD (WITH EURO-OBD)]
DTC P0606 ECM

Diagnostic ProcedureEBS011C2
1. INSPECTION START
With CONSULT-II
1. Turn ignition switch ON.
2. Select “SELF DIAG RESULTS” mode with CONSULT-II.
3. Touch “ERASE”.
4. Perform EC-1091, "
DTC Confirmation Procedure" , again.
5. Is 1st trip DTC P0606 displayed again?
With GST
1. Turn ignition switch ON.
2. Select MODE4 with GST.
3. Touch “ERASE”.
4. Perform EC-1091, "
DTC Confirmation Procedure" , again.
5. Is DTC P0606 displayed again?
Ye s o r N o
Yes >> GO TO 2.
No >>INSPECTION END
2. REPLACE ECM
1. Replace ECM.
2. Perform initialization of NATS system and registration of all NATS ignition key IDs. Refer to EC-896,
"NATS (Nissan Anti-theft System)" .
3. Perform “Fuel Pump Learning Value Clearing”. Refer to EC-890, "
Fuel Pump Learning Value Clearing" .
>>INSPECTION END