2003 NISSAN X-TRAIL Electronic Repair Manual

Page 1817 of 3066

NISSAN X-TRAIL 2003  Electronic Repair Manual POWER SUPPLY CIRCUIT FOR ECM
EC-703
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5.CHECK ECM POWER SUPPLY CIRCUIT-II
1. Reconnect ECM harness connector.
2. Turn ignition switch “ON” and then “OFF”.
3. Check

Page 1818 of 3066

NISSAN X-TRAIL 2003  Electronic Repair Manual EC-704
[YD]
POWER SUPPLY CIRCUIT FOR ECM
8.CHECK OUTPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Disconnect ECM harness connector.
2. Check harness continuity between ECM terminals D24, D26 and ECM relay

Page 1819 of 3066

NISSAN X-TRAIL 2003  Electronic Repair Manual POWER SUPPLY CIRCUIT FOR ECM
EC-705
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13.CHECK ECM GROUND CIRCUIT FOR OPEN AND SHORT
1. Check harness continuity between ECM terminals A5, A6, A7 and engine ground. Refer

Page 1820 of 3066

NISSAN X-TRAIL 2003  Electronic Repair Manual EC-706
[YD]
DTC P0100 MASS AIR FLOW SENSOR (MAFS)
DTCP0100MASSAIRFLOWSENSOR(MAFS)
PFP:22680
Component DescriptionEBS004Q0
The mass air flow sensor (MAFS) is placed in the stream of intake
air. It meas

Page 1821 of 3066

NISSAN X-TRAIL 2003  Electronic Repair Manual DTCP0100MASSAIRFLOWSENSOR(MAFS)
EC-707
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: Average voltage for pulse signal (Actual pulse signal can be confirmed by oscilloscope.)
On Board Diagnosis LogicEBS004Q3
DTC Co

Page 1822 of 3066

NISSAN X-TRAIL 2003  Electronic Repair Manual EC-708
[YD]
DTC P0100 MASS AIR FLOW SENSOR (MAFS)
Wiring Diagram
EBS004Q5
TBWA0102E

Page 1823 of 3066

NISSAN X-TRAIL 2003  Electronic Repair Manual DTCP0100MASSAIRFLOWSENSOR(MAFS)
EC-709
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Diagnostic ProcedureEBS004Q6
1.CHECK MAFS POWER SUPPLY CIRCUIT
1. Turn ignition switch “OFF”.
2. Disconnect mass air flow sens

Page 1824 of 3066

NISSAN X-TRAIL 2003  Electronic Repair Manual EC-710
[YD]
DTC P0100 MASS AIR FLOW SENSOR (MAFS)
5.CHECK MAFS INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Disconnect ECM harness connector.
2. Check harness continuity between mass air flow sensor ter