battery NISSAN X-TRAIL 2003 Electronic Repair Manual

DTC P1216 EDU
EC-755
[YD]
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EC
: Average voltage for pulse signal (Actual pulse signal can be confirmed by oscilloscope.)
On Board Diagnosis LogicEBS008XC
DTC Confirmation ProcedureEBS008XD
WITH CONSULT-II
1. Turn ignition switch “ON” and wait at least 2 seconds.
2. Select “DATA MONITOR” mode with CONSULT-II.
3. Start engine and run it for at least 2 seconds at idle speed.
(If engine does not run, turn ignition switch to “START” for at
least 2 seconds.)
4. If DTC is detected, go toEC-758, "
Diagnostic Procedure".
[Engine is running]
lWarm-up condition
lEngine speed is 2,000 rpm1-5V
D24
D26G
GECM relay (self-shutoff)[Ignition switch “ON”]
[Ignition switch “OFF”]
lFor a few seconds after turning ignition
switch "OFF"Approximately 0V
[Ignition switch “OFF”]
lA few seconds passed after turning ignition
switch "OFF"BATTERY VOLTAGE
(11 - 14V) TERMI-
NAL
NO.WIRE
COLORITEM CONDITIONDATA
(DC Voltage and Pulse Signal)
PBIB0392E
DTC Malfunction is detected when .... Check Items (Possible cause)
P1216
lEDU feed back signal is not normal pattern.lHarness or connectors
(Injector drive circuit is open or shorted.)
lElectronic drive unit
lFuel injectors
SEF817Y

EC-758
[YD]
DTC P1216 EDU
Diagnostic Procedure
EBS008XF
1.INSPECTION START
1. Turn ignition switch "START".
2. Is any cylinder ignited?
OK or NG
OK >> GO TO 5.
NG >> GO TO 2.
2.CHECK EDU POWER SUPPLY CIRCUIT
1. Turn ignition switch "OFF".
2. Disconnect EDU harness connector.
3. Turn ignition switch "ON".
4. Check voltage between EDU terminal 6 and ground with CON-
SULT-II or tester.
OK or NG
OK >> GO TO 4.
NG >> GO TO 3.
3.DETECT MALFUNCTIONING PART
Check the following.
lHarness for open or short between EDU and ECM
lHarness for open or short between EDU ad ECM relay
>> Repair open circuit or short to ground or short to power in harness or connectors.
4.CHECK EDU GROUND CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch "OFF".
2. Check harness continuity between EDU terminal 8 and ground. Refer to Wiring Diagram.
3. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 5.
NG >> Repair open circuit or short to ground or short to power in harness or connectors.
PBIB0407E
Voltage: Battery voltage
PBIB0421E
Continuity should exist.

DTC P1217 OVERHEAT (COOLING SYSTEM)
EC-761
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EC
DTC P1217 OVERHEAT (COOLING SYSTEM)PFP:00021
DescriptionEBS004QR
SYSTEM DESCRIPTION
The ECM controls the cooling fan corresponding to the vehicle speed, engine coolant temperature, air condi-
tioner ON signal. The control system has 3-step control [HIGH/LOW/OFF].
OPERATION
CONSULT-II Reference Value in Data Monitor ModeEBS004QS
Specification data are reference values.
ECM Terminals and Reference ValueEBS004QT
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 dam-
age to the ECM's transistor. Use a ground other than ECM terminals, such as the ground.
On Board Diagnosis LogicEBS004QU
This diagnosis continuously monitors the engine coolant temperature.
If the cooling fan or another component in the cooling system malfunctions, engine coolant temperature will
rise.
Sensor Input signal to ECM ECM function Actuator
Vehicle speed sensor Vehicle speed
Cooling fan
controlCooling fan relay Engine coolant temperature sensor Engine coolant temperature
Air conditioner switch Air conditioner “ON” signal
SEF421Z
MONITOR ITEM CONDITION SPECIFICATION
COOLING FANWhen cooling fan is stopped. OFF
When cooling fans operate at low speed. LOW
When cooling fans operate at high speed. HIGH
TER-
MINAL
NO.WIRE
COLORITEM CONDITION DATA (DC Voltage)
E2 LG Cooling fan relay (Low)[Engine is running]
lCooling fan is not operatingBATTERY VOLTAGE
(11 - 14V)
[Engine is running]
lCooling fan is operatingApproximately 0.1V
E7 LG/B Cooling fan relay (High)[Engine is running]
lCooling fan is not operating
lCooling fan is operating at low speedBATTERY VOLTAGE
(11 - 14V)
[Engine is running]
lCooling fan is operating at high speedApproximately 0.1V

EC-766
[YD]
DTC P1217 OVERHEAT (COOLING SYSTEM)
6.CHECK THERMOSTAT
1. Remove thermostat.
2. Check valve seating condition at normal room temperatures.
It should seat tightly.
3. Check valve opening temperature and valve lift.
4. Check if valve is closed at 5°C(9°F) below valve opening tem-
perature. For details, refer toCO-42, "
THERMOSTAT AND
WATER PIPING".
OK or NG
OK >> GO TO 7.
NG >> Replace thermostat.
7.CHECK ENGINE COOLANT TEMPERATURE SENSOR
Refer toEC-714, "
Component Inspection".
OK or NG
OK >> GO TO 8.
NG >> Replace engine coolant temperature sensor.
8.CHECK MAIN 12 CAUSES
If the cause cannot be isolated, go toEC-770, "
Main 12 Causes of Overheating".
>>INSPECTION END
PROCEDURE A
1.CHECK COOLING FAN POWER SUPPLY CIRCUIT
1. Turn ignition switch “OFF”.
2. Disconnect cooling fan relay-1.
3. Turn ignition switch “ON”.
4. Check voltage between cooling fan relay-1 terminals 1, 5, 7 and
ground with CONSULT-II or tester.
OK or NG
OK >> GO TO 3.
NG >> GO TO 2.Valve opening temperature:
80 - 84°C (176 - 183°F) [standard]
Valve lift:
More than 10 mm/95°C (0.339 in/203°F)
SLC343
Voltage: Battery voltage
PBIB0422E

DTC P1217 OVERHEAT (COOLING SYSTEM)
EC-767
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EC
2.DETECT MALFUNCTIONING PART
Check the following.
lFuse block (J/B) connector E103
l10A fuse
l40A fusible links
lHarness for open or short between cooling fan relay-1 and fuse
lHarness for open or short between cooling fan relay-1 and battery
>> Repair open circuit or short to ground or short to power in harness or connectors.
3.CHECK COOLING FAN GROUND CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch “OFF”.
2. Disconnect cooling fan motor-1 harness connector and cooling fan motor-2 harness connector.
3. Check harness continuity between cooling fan relay-1 terminal 3 and cooling fan motor-1 terminal 1, cool-
ing fan motor-1 terminal 4 and body ground. Refer to Wiring Diagram.
4. Also check harness for short to ground and short to power.
5. Check harness continuity between cooling fan relay-1 terminal 6 and cooling fan motor-2 terminal 1, cool-
ing fan motor-2 terminal 4 and body ground. Refer to Wiring Diagram.
6. 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.
4.CHECK COOLING FAN OUTPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Disconnect ECM harness connector.
2. Check harness continuity between ECM terminal E2 and cooling fan relay-1 terminal 2. Refer to Wiring
Diagram.
3. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 6.
NG >> GO TO 5.
PBIB0479E
Continuity should exist.
Continuity should exist.
Continuity should exist.

EC-768
[YD]
DTC P1217 OVERHEAT (COOLING SYSTEM)
5.DETECT MALFUNCTIONING PART
Check the following.
lHarness connectors E64, F5
lHarness for open or short between cooling fan relay-1 and ECM
>> Repair open circuit or short to ground or short to power in harness or connectors.
6.CHECK COOLING FAN RELAY-1
Refer toEC-771, "
Component Inspection".
OK or NG
OK >> GO TO 7.
NG >> Replace cooling fan relay.
7.CHECK COOLING FAN MOTORS-1 AND -2
Refer toEC-771, "
Component Inspection".
OK or NG
OK >> GO TO 8.
NG >> Replace cooling fan motors.
8.CHECK INTERMITTENT INCIDENT
PerformEC-699, "
TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT".
>>INSPECTION END
PROCEDURE B
1.CHECK COOLING FAN POWER SUPPLY CIRCUIT
1. Turn ignition switch “OFF”.
2. Disconnect cooling fan relays-2 and -3.
3. Turn ignition switch “ON”.
4. Check voltage between cooling fan relays-2 and -3 terminals 1,
3 and ground with CONSULT-II or tester.
OK or NG
OK >> GO TO 3.
NG >> GO TO 2.
PBIB0369E
Voltage: Battery voltage
PBIB0424E

DTC P1217 OVERHEAT (COOLING SYSTEM)
EC-771
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EC
*1: Turn the ignition switch ON.
*2: Engine running at 3,000 rpm for 10 minutes.
*3: Drive at 90 km/h (55 MPH) for 30 minutes and then let idle for 10 minutes.
*4: After 60 minutes of cool down time.
For more information, refer toCO-26, "
OVERHEATING CAUSE ANALYSIS".
Component InspectionEBS004QZ
COOLING FAN RELAY-1, -2 AND -3
Check continuity between terminals 3 and 5, 6 and 7 under the fol-
lowing conditions.
COOLING FAN MOTOR-1 AND -2
Supply battery voltage between the following terminals and check
operation.
ON*39lCoolant temperature
gaugelVisual Gauge less than 3/4
when driving—
lCoolant overflow to
reservoir tanklVisual No overflow during driv-
ing and idlingSeeMA-27, "Changing
Engine Coolant".
OFF*
410lCoolant return from
reservoir tank to radia-
torlVisual Should be initial level in
reservoir tankSeeMA-28, "REFILLING
ENGINE COOLANT".
OFF 11
lCylinder headlStraight gauge feeler
gauge0.1mm (0.004 in) Maxi-
mum distortion (warping)SeeEM-173, "CYLIN-
DER HEAD".
12
lCylinder block and pis-
tonslVisual No scuffing on cylinder
walls or pistonSeeEM-188, "CYLIN-
DER BLOCK". Engine Step Inspection item Equipment Condition Reference page
Conditions Continuity
12V direct current supply between ter-
minals 1 and 2Ye s
No current supply No
SEF745U
SpeedTe r m i n a l s
(+) (–)
Cooling fan motor-1Low 1 4
High 1, 2 3, 4
Cooling fan motor-2Low 1 4
High 1, 2 3, 4
PBIB0423E

EC-784
[YD]
DTC P1510 ACCELERATOR PEDAL RELEASED POSITION SWITCH
On Board Diagnosis Logic
EBS0096Y
DTC Confirmation ProcedureEBS0096Z
WITH CONSULT-II
1. Turn ignition switch “ON”.
2. Select “DATA MONITOR” mode with CONSULT-II.
3. Depress and release fully accelerator pedal slowly.
4. If DTC is detected, go toEC-786, "
Diagnostic Procedure".
A26 LG/RAccelerator pedal position
sensor 2 ground[Ignition switch "ON"]Approximately 0V
A28 PU/RAccelerator pedal position
sensor 1 power supply[Ignition switch "ON"]Approximately 5V
B15 WAccelerator pedal position
sensor 1[Ignition switch "ON"]
lAccelerator pedal fully released0.8 - 1.3V
[Ignition switch "ON"]
lAccelerator pedal fully depressedMore than 3.5V
B16 GAccelerator pedal position
sensor 2[Ignition switch "ON"]
lAccelerator pedal fully released0.3 - 1.8V
[Ignition switch "ON"]
lAccelerator pedal fully depressedMore than 3.0V
B23 GY/LAccelerator pedal position
sensor 2 power supply[Ignition switch “ON”]Approximately 5V
D14 G/YAccelerator pedal
released position switch[Ignition switch “ON”]
lAccelerator pedal slightly depressedBATTERY VOLTAGE
(11 - 14V)
[Ignition switch “ON”]
lAccelerator pedal fully releasedApproximately 0V TERMI-
NAL
NO.WIRE
COLORITEM CONDITIONDATA
(DC Voltage and Pulse Signal)
DTC Malfunction is detected when ... Check Items (Possible Cause)
P1510
lThe relation between accelerator pedal position
sensor 1, 2 signals and accelerator pedal position
switch signal is not in the normal range during the
specified accelerator pedal positions.lHarness or connectors
(Accelerator pedal released position switch circuit is
open or shorted.)
lAccelerator pedal released position switch
SEF817Y

EC-786
[YD]
DTC P1510 ACCELERATOR PEDAL RELEASED POSITION SWITCH
Diagnostic Procedure
EBS00971
1.CHECK ACCELERATOR PEDAL RELEASED POSITION SWITCH POWER SUPPLY CIRCUIT
1. Turn ignition switch “OFF”.
2. Disconnect accelerator work unit harness connector.
3. Turn ignition switch “ON”.
4. Check voltage between accelerator work unit terminal 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.
lHarness connectors F30, M63
lHarness for open or short between accelerator work unit and ECM
>> Repair harness or connectors.
3.CHECK ACCELERATOR PEDAL RELEASED POSITION SWITCH GROUND CIRCUIT FOR OPEN
AND SHORT
1. Turn ignition switch “OFF”.
2. Disconnect ECM harness connector.
3. Check harness continuity between accelerator work unit terminal 4 and ECM terminal A21. Refer to Wir-
ing Diagram.
4. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 5.
NG >> GO TO 4.
PBIB0379E
Voltage: Battery voltage
PBIB0365E
Continuity should exist.

EC-790
[YD]
DTC P1621 ECM RELAY
DTC P1621 ECM RELAY
PFP:25230
ECM Terminals and Reference valveEBS009O8
On Board Diagnosis LogicEBS008Y3
DTC Confirmation ProcedureEBS008Y4
WITH CONSULT-II
1. Turn ignition switch “ON”.
2. Select “DATA MONITOR” mode with CONSULT-II.
3. Turn ignition switch “OFF”, wait at least 20 seconds and then
turn “ON”.
4. If DTC is detected, go toEC-792, "
Diagnostic Procedure".
TER-
MINAL
NO.WIRE
COLORITEM CONDITIONDATA
(DC Voltage and Pulse Signal)
A8
A9R
RPower supply for ECM[Ignition switch "ON"]BATTERY VOLTAGE
(11 - 14V)
D18
D19W/R
W/RIgnition switch[Ignition switch “ON”]BATTERY VOLTAGE
(11 - 14V)
D24
D26G
GECM relay (self-shutoff)[Ignition switch “ON”]
[Ignition switch “OFF”]
lFor a few seconds after turning ignition switch
"OFF"Approximately 0V
[Ignition switch “OFF”]
lA few seconds passed after turning ignition
switch "OFF"BATTERY VOLTAGE
(11 - 14V)
DTC Malfunction is detected when ... Check Items (Possible Cause)
P1621
lAn irregular voltage signal from the ECM relay is
sent to ECM.lHarness or connectors (ECM relay circuit is open or
shorted.)
lECM relay
SEF817Y