2001 NISSAN X-TRAIL Service Repair Manual

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Page 1609 of 3833

NISSAN X-TRAIL 2001 Service Repair Manual DTC P0550 PSP SENSOR
EC-1259
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Wiring DiagramEBS00N6V
TBWA0087E

Page 1610 of 3833

NISSAN X-TRAIL 2001 Service Repair Manual EC-1260
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DTC P0550 PSP SENSOR
Diagnostic Procedure
EBS00N6W
1. RETIGHTEN GROUND SCREWS
1. Turn ignition switch “OFF”.
2. Loosen and retighten engine ground screws.
>> GO TO

Page 1611 of 3833

NISSAN X-TRAIL 2001 Service Repair Manual DTC P0550 PSP SENSOR
EC-1261
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4.CHECK PSP SENSOR INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Disconnect ECM harness connector.
2. Check harness continu

Page 1612 of 3833

NISSAN X-TRAIL 2001 Service Repair Manual EC-1262
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DTC P0605 ECM
DTC P0605 ECM
PFP:23710
Component DescriptionEBS00N6Y
The ECM consists of a microcomputer and connectors for signal
input and output and for pow

Page 1613 of 3833

NISSAN X-TRAIL 2001 Service Repair Manual DTC P0605 ECM
EC-1263
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PROCEDURE FOR MALFUNCTION B
With CONSULT-II
1. Turn ignition switch “ON” and wait at least 1 second.
2. Select “DATA MON

Page 1614 of 3833

NISSAN X-TRAIL 2001 Service Repair Manual EC-1264
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DTC P0605 ECM
Diagnostic Procedure
EBS00N71
1. INSPECTION START
With CONSULT-II
1. Turn ignition switch “ON”.
2. Select “SELF DIAG RESULTS” mode with CONSULT-I

Page 1615 of 3833

NISSAN X-TRAIL 2001 Service Repair Manual DTC P0650 MI
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DTC P0650 MIPFP:24810
Component DescriptionEBS00N72
Malfunction Indicator (MI) is located on the instrument panel. When

DTC P0650 MI
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DTC P0650 MIPFP:24810
Component DescriptionEBS00N72
Malfunction Indicator (MI) is located on the instrument panel. When the ignition switch is turned ON without
engine running, MI will light up. This is a bulb check. When the engine is started, MI should go off. If MI
remains on, the on board diagnostic system has detected an engine system malfunction.
On Board Diagnosis LogicEBS00N73
The MI will not light up for this diagnosis.
FAIL-SAFE MODE
ECM enters fail-safe mode when both DTC P0650 and another DTC, which calls for MI to light up, are
detected at the same time.
DTC Confirmation ProcedureEBS00N74
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” and wait at least 1 second.
2. Select “DATA MONITOR” mode with CONSULT-II.
3. Start engine and let it idle for 1 second.
4. If 1st trip DTC is detected, go to EC-1267, "
Diagnostic Proce-
dure" .
Overall Function CheckEBS00N75
Use this procedure to check the overall function of the mass air flow sensor circuit. During this check, a 1st trip
DTC might not be confirmed.
WITHOUT CONSULT-II
1. Turn ignition switch “ON”.
2. Check that the MI is illuminated.
3. If NG, go to EC-1267, "
Diagnostic Procedure" .
If OK, go to next step.
4. Start engine.
5. Check that the MI is not illuminated.
6. If NG, go to EC-1267, "
Diagnostic Procedure" .
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P0650
0650Malfunction indicator
(MI) control circuit
●An excessively high voltage is sent to ECM
through the MI circuit under the condition
that calls for MI light up.
●An excessively low voltage is sent to ECM
through the MI circuit under the condition
that calls for MI not to light up.
●Harness or connectors
(MI circuit is open or shorted.)
●MI
Detected items Engine operating condition in fail-safe mode
MI circuit Engine speed will not rise more than 2,500 rpm due to the fuel cut
SEF058Y

Page 1616 of 3833

NISSAN X-TRAIL 2001 Service Repair Manual EC-1266
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DTC P0650 MI
Wiring Diagram
EBS00N76
TBWA0130E

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