Nissan Pathfinder (2007 year). Instruction — part 220
ASCD INDICATOR
EC-627
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EC
2007 Pathfinder
Diagnostic Procedure
UBS00KIX
1.
CHECK OVERALL FUNCTION
Check ASCD indicator under the following conditions.
OK or NG
OK
>> INSPECTION END
NG
>> GO TO 2.
2.
CHECK DTC
Check that DTC U1000 or U1001 is not displayed.
OK or NG
OK
>> GO TO 3.
NG
>> Perform trouble diagnoses for DTC U1000, U1001. Refer to
3.
CHECK COMBINATION METER FUNCTION
Refer to
.
OK or NG
OK
>> GO TO 4.
NG
>> Go to
DI-6, "Arrangement of Combination Meter"
4.
CHECK INTERMITTENT INCIDENT
Refer to
EC-145, "TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT"
>> INSPECTION END
ASCD INDICATOR
CONDITION
SPECIFICATION
CRUISE LAMP
●
Ignition switch: ON
MAIN switch: pressed at the 1st
time
→
at the 2nd time
ON
→
OFF
SET LAMP
●
MAIN switch: ON
●
When vehicle speed is
between 40 km/h (25 MPH)
and 144 km/h (89 MPH)
ASCD: Operating
ON
ASCD: Not operating
OFF
EC-628
ELECTRICAL LOAD SIGNAL
2007 Pathfinder
ELECTRICAL LOAD SIGNAL
PFP:25350
Description
UBS00KIM
The electrical load signal (Headlamp switch signal, etc.) is transferred through the CAN communication line
from BCM to ECM via IPDM E/R.
CONSULT-II Reference Value in Data Monitor Mode
UBS00KIN
Specification data are reference values.
Diagnostic Procedure
UBS00KIO
1.
CHECK LOAD SIGNAL CIRCUIT OVERALL FUNCTION-I
1.
Turn ignition switch ON.
2.
Connect CONSULT-II and select “DATA MONITOR” mode.
3.
Select “LOAD SIGNAL” and check indication under the following
conditions.
OK or NG
OK
>> GO TO 2.
NG
>> GO TO 4.
2.
CHECK LOAD SIGNAL CIRCUIT OVERALL FUNCTION-II
Check “LOAD SIGNAL” indication under the following conditions.
OK or NG
OK
>> GO TO 3.
NG
>> GO TO 5.
MONITOR ITEM
CONDITION
SPECIFICATION
LOAD SIGNAL
●
Ignition switch: ON
Rear window defogger switch ON and/
or lighting switch is in 2nd.
ON
Rear window defogger switch and
lighting switch are OFF.
OFF
HEATER FAN SW
●
Engine: After warning up, idle the
engine
Heater fan switch: ON
ON
Heater fan switch: OFF
OFF
Condition
Indication
Rear window defogger switch: ON
ON
Rear window defogger switch: OFF
OFF
PBIB0103E
Condition
Indication
Lighting switch: ON at 2nd position
ON
Lighting switch: OFF
OFF
PBIB0103E
ELECTRICAL LOAD SIGNAL
EC-629
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2007 Pathfinder
3.
CHECK HEATER FAN SIGNAL CIRCUIT OVERALL FUNCTION
Select “HEATER FAN SW” and check indication under the following
conditions.
OK or NG
OK
>> INSPECTION END
NG
>> GO TO 6.
4.
CHECK REAR WINDOW DEFOGGER SYSTEM
Refer to
>> INSPECTION END
5.
CHECK HEADLAMP SYSTEM
Refer to
or
LT-27, "HEADLAMP (FOR CANADA) - DAYTIME LIGHT SYS-
>> INSPECTION END
6.
CHECK HEATER FAN CONTROL SYSTEM
Refer to
>> INSPECTION END
Condition
Indication
Heater fan control switch: ON
ON
Heater fan control switch: OFF
OFF
PBIB1995E
EC-630
FUEL INJECTOR
2007 Pathfinder
FUEL INJECTOR
PFP:16600
Component Description
UBS00KI6
The fuel injector is a small, precise solenoid valve. When the ECM
supplies a ground to the fuel injector, the coil in the fuel injector is
energized. The energized coil pulls the ball valve back and allows
fuel to flow through the fuel injector into the intake manifold. The
amount of fuel injected depends upon the injection pulse duration.
Pulse duration is the length of time the fuel injector remains open.
The ECM controls the injection pulse duration based on engine fuel
needs.
CONSULT-II Reference Value in Data Monitor Mode
UBS00KI7
Specification data are reference values.
SEF375Z
MONITOR ITEM
CONDITION
SPECIFICATION
B/FUEL SCHDL
See
EC-135, "TROUBLE DIAGNOSIS - SPECIFICATION VALUE"
.
INJ PULSE-B1
INJ PULSE-B2
●
Engine: After warming up
●
Shift lever: P or N
●
Air conditioner switch: OFF
●
No load
Idle
2.0 - 3.0 msec
2,000 rpm
1.9 - 2.9 msec
FUEL INJECTOR
EC-631
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2007 Pathfinder
Wiring Diagram
UBS00KI8
BBWA2379E
EC-632
FUEL INJECTOR
2007 Pathfinder
Specification data are reference values and are measured between each terminal and ground.
Pulse signal is measured by CONSULT-II.
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.
: Average voltage for pulse signal (Actual pulse signal can be confirmed by oscilloscope.)
Diagnostic Procedure
UBS00KI9
1.
INSPECTION START
Turn ignition switch to START.
Is any cylinder ignited?
Yes or No
Yes (With CONSULT-II)>>GO TO 2.
Yes (Without CONSULT-II)>>GO TO 3.
No
>> GO TO 7.
2.
CHECK OVERALL FUNCTION
With CONSULT-II
1.
Start engine.
2.
Perform “POWER BALANCE” in “ACTIVE TEST” mode with
CONSULT-II.
3.
Make sure that each circuit produces a momentary engine
speed drop.
OK or NG
OK
>> INSPECTION END
NG
>> GO TO 7.
TER-
MINAL
NO.
WIRE
COLOR
ITEM
CONDITION
DATA (DC Voltage)
21
22
23
40
41
42
W
LG
SB
V
R
O
Fuel injector No. 5
Fuel injector No. 3
Fuel injector No. 1
Fuel injector No. 6
Fuel injector No. 4
Fuel injector No. 2
[Engine is running]
●
Warm-up condition
●
Idle speed
NOTE:
The pulse cycle changes depending on rpm
at idle
BATTERY VOLTAGE
(11 - 14V)
[Engine is running]
●
Warm-up condition
●
Engine speed: 2,000 rpm
BATTERY VOLTAGE
(11 - 14V)
SEC984C
SEC985C
PBIB0133E
FUEL INJECTOR
EC-633
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2007 Pathfinder
3.
CHECK FUNCTION OF FUEL INJECTOR-I
Without CONSULT-II
1.
Stop engine.
2.
Disconnect harness connector F44, F101.
3.
Turn ignition switch ON.
4.
Check voltage between harness connector F44 terminal 3 and
ground with CONSULT-II or tester.
5.
Turn ignition switch OFF.
6.
Disconnect ECM harness connector.
7.
Check harness continuity between harness connector F44 and
ECM as follows.
Refer to Wiring Diagram.
8.
Also check harness for short to ground and short to power.
OK or NG
OK
>> GO TO 5.
NG
>> GO TO 4.
4.
DETECT MALFUNCTIONING PART
Check the following.
●
Harness connectors E2, F32
●
IPDM E/R harness connector E119
●
15A fuse
●
Harness for open or short between harness connector F44 and fuse
●
Harness for open or short between harness connector F101 and fuel injector
>> Repair open circuit or short to ground or short to power in harness or connectors.
BBIA0587E
Voltage: Battery voltage
Cylinder
Harness connector F44
terminal
ECM terminal
1
2
23
3
1
22
5
4
21
Continuity should exist.
PBIB2633E
EC-634
FUEL INJECTOR
2007 Pathfinder
5.
CHECK FUNCTION OF FUEL INJECTOR-II
Provide battery voltage between harness connector F101 as follows
and then interrupt it. Listen to each fuel injector operating sound.
OK or NG
OK
>> GO TO 6.
NG
>> GO TO 7.
6.
CHECK FUNCTION OF FUEL INJECTOR-III
1.
Reconnect all harness connector disconnected.
2.
Start engine.
3.
Listen to fuel injectors No. 2, No. 4, No.6 operating sound.
OK or NG
OK
>> INSPECTION END
NG
>> GO TO 7.
Cylinder
Harness connector F101 terminal
(+)
(–)
1
3
2
3
3
1
5
3
4
Operating sound should exist.
PBIB2634E
Clicking noise should exist.
PBIB1986E
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