2003 NISSAN X-TRAIL start

DTC P2146, P2149 FUEL INJECTOR POWER SUPPLY
EC-1157
[YD (WITH EURO-OBD)]
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DTC Confirmation ProcedureEBS011EY
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.
TESTING CONDITION
Before performing the following procedure, confirm the ambient temperature is more than -20°C (-4°F).
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 5 seconds.
4. If 1st trip DTC is detected, go to EC-1159, "
Diagnostic Proce-
dure" .
WITH GST
Follow the procedure “WITH CONSULT-II” above.
SEF817Y

EC-1162
[YD (WITH EURO-OBD)]
DTC P2147, P2148 FUEL INJECTOR CIRCUIT

2. Select “DATA MONITOR” mode with CONSULT-II.
3. Start engine and let it idle for at least 5 seconds.
4. If 1st trip DTC is detected, go to EC-1164, "
Diagnostic Proce-
dure" .
WITH GST
Follow the procedure “WITH CONSULT-II” above.
SEF817Y

EC-1168
[YD (WITH EURO-OBD)]
DTC P2228, P2229 BARO SENSOR

Diagnostic ProcedureEBS011FF
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-1167, "
DTC Confirmation Procedure" , again.
5. Is 1st trip DTC P2228 or P2229 displayed again?
With GST
1. Turn ignition switch ON.
2. Select MODE4 with GST.
3. Touch “ERASE”.
4. Perform EC-1167, "
DTC Confirmation Procedure" , again.
5. Is 1st trip DTC P2228 or P2229 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 Valve Clearing. Refer to EC-890, "
Fuel Pump Learning Value Clearing" .
>>INSPECTION END

GLOW CONTROL SYSTEM
EC-1169
[YD (WITH EURO-OBD)]
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GLOW CONTROL SYSTEMPFP:25230
DescriptionEBS011FG
SYSTEM DESCRIPTION
When engine coolant temperature is more than approximately 80°C (176°F), the glow relay turns off.
When coolant temperature is lower than approximately 80°C (176°F):

Ignition switch ON
After ignition switch has turned to ON, the glow relay turns ON for a certain period of time in relation to
engine coolant temperature, allowing current to flow through glow plug.

Cranking
The glow relay turns ON, allowing current to flow through glow plug.

Sta rti ng
After engine has started, current continues to flow through glow plug (after-glow mode) for a certain period
in relation to engine coolant temperature.
The glow indicator lamp turns ON for a certain period of time in relation to engine coolant temperature at the
time glow relay is turned ON.
COMPONENT DESCRIPTION
Glow Plug
The glow plug is provided with a ceramic heating element to obtain a
high-temperature resistance. It glows in response to a signal sent
from the ECM, allowing current to flow through the glow plug via the
glow relay.
Sensor Input Signal to ECM ECM Function Actuator
Crankshaft position sensor Engine speed
Glow controlGlow lamp
Glow relay
Glow plugs Engine coolant temperature sensor Engine coolant temperature
SEF376Y

EC-1172
[YD (WITH EURO-OBD)]
GLOW CONTROL SYSTEM

Diagnostic ProcedureEBS011FJ
1. INSPECTION START
Check fuel level, fuel supplying system, starter motor, etc.
OK or NG
OK >> GO TO 2.
NG >> Correct.
2. CHECK INSTALLATION
Check that glow plug nut and all glow plug connecting plate nuts are
installed properly.
OK or NG
OK >> GO TO 3.
NG >> Install properly.
3. CHECK GLOW INDICATOR LAMP OPERATION
With CONSULT-II
1. Turn ignition switch ON.
2. Select “COOLAN TEMP/S” in “DATA MONITOR” mode with
CONSULT-II.
3. Confirm that “COOLAN TEMP/S” indicates below 80°C (176°F).
If it indicates above 80°C (176°F), cool down engine.
4. Turn ignition switch OFF, wait at least 5 seconds and then turn
ON.
5. Make sure that glow indicator lamp is turned ON for 1.5 seconds
or more after turning ignition switch ON, and then glow indicator
lamp turned OFF.
Without CONSULT-II
1. Turn ignition switch ON.
2. Confirm that the voltage between ECM terminal 51 (engine cool-
ant temperature sensor signal) and ground is above 1.53V.
If it is below 1.53V, cool down engine.
3. Turn ignition switch OFF, wait at least 5 seconds and then turn
ON.
4. Make sure that glow indicator lamp is turned ON for 1.5 seconds
or more after turning ignition switch ON, and then glow indicator
lamp turned OFF.
OK or NG
OK >> GO TO 4.
NG >> GO TO 5.
SEF392YA
SEF013Y
SEF006P

EC-1188
[YD (WITH EURO-OBD)]
PSP SWITCH

Diagnostic ProcedureEBS011GD
1. CHECK OVERALL FUNCTION
With CONSULT-II
1. Start engine.
2. Check “PW/ST SIGNAL” in “DATA MONITOR” mode with CON-
SULT-II under the following conditions.
Without CONSULT-II
1. Start engine.
2. Check voltage between ECM terminal 99 and ground under the
following conditions.
OK or NG
OK >>INSPECTION END
NG >> GO TO 2.
2. CHECK POWER STEERING PRESSURE SWITCH GROUND CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch OFF.
2. Disconnect power steering pressure switch harness connector.
3. Check harness continuity between power steering pressure
switch terminal 2 and ground. Refer to Wiring Diagram.
4. Also check harness for short to power.
OK or NG
OK >> GO TO 3.
NG >> Repair open circuit or short to power in harness or con-
nectors.
3. CHECK POWER STEERING PRESSURE SWITCH INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Disconnect ECM harness connector.
2. Check harness continuity between ECM terminal 111 and power steering pressure switch terminal 1.
Refer to Wiring Diagram.
3. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 5.
NG >> GO TO 4.
Conditions PW/ST SIGNAL
Steering wheel is in neutral position OFF
Steering wheel is turned ON
PBIB0434E
Conditions Voltage
Steering wheel is in neutral position Battery voltage
Steering wheel is turned Approximately 0V
PBIB1948E
Continuity should exist.
PBIB1904E
Continuity should exist.

PSP SWITCH
EC-1189
[YD (WITH EURO-OBD)]
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4. DETECT MALFUNCTIONING PART
Check the following.

Harness connectors M63, F30

Harness for open and short between power steering pressure switch and ECM
>> Repair open circuit or short to ground or short to power in harness or connectors.
5. CHECK POWER STEERING PRESSURE SWITCH
Refer to EC-1189, "
Component Inspection" .
OK or NG
OK >> GO TO 6.
NG >> Replace power steering pressure switch.
6. CHECK INTERMITTENT INCIDENT
Refer to EC-936, "
TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT" .
>>INSPECTION END
Component InspectionEBS011GE
POWER STEERING PRESSURE SWITCH
1. Disconnect power steering pressure switch harness connector and then start engine.
2. Check continuity between power steering pressure switch termi-
nal 1 and 2 under the following conditions.
Removal and InstallationEBS0128B
Refer to PS-34, "HYDRAULIC LINE" .
Conditions Continuity
Steering wheel is being fully turned. Yes
Steering wheel is not being turned. No
MBIB0624E

START SIGNAL
EC-1199
[YD (WITH EURO-OBD)]
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START SIGNALPFP:48750
Wiring DiagramEBS011GG
TBWA0582E