Nissan Xterra. Manual — part 512
MWI
FUEL LEVEL SENSOR SIGNAL CIRCUIT
MWI-35
< DTC/CIRCUIT DIAGNOSIS >
C
D
E
F
G
H
I
J
K
L
M
B
A
O
P
Check the resistance between terminals 2 and 5.
*1 and *2: When float arm is in contact with stopper.
Is inspection result normal?
YES
>> Inspection End.
NO
>> Replace fuel level sensor unit and fuel pump. Refer to
FL-11, "Removal and Installation"
Terminal
Float position
mm (in)
Resistance value
(Approx.)
2
5
*1
Empty
10 (0.4)
81.5
Ω
*2
Full
211.1 (8.3)
5
Ω
LKIA0402E
MWI-36
< DTC/CIRCUIT DIAGNOSIS >
OIL PRESSURE SWITCH SIGNAL CIRCUIT
OIL PRESSURE SWITCH SIGNAL CIRCUIT
Description
INFOID:0000000009483212
Detects the engine oil pressure and transmits the oil pressure switch signal to the IPDM E/R.
Component Function Check
INFOID:0000000009483213
1.
COMBINATION METER INPUT SIGNAL
1. Select “METER/M&A” on CONSULT.
2. Monitor “OIL W/L” of “DATA MONITOR” while operating ignition switch.
>> Inspection End.
Diagnosis Procedure
INFOID:0000000009483214
Regarding Wiring Diagram information, refer to
.
1.
CHECK OIL PRESSURE SWITCH CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect IPDM E/R connector E122 and oil pressure switch connector E208.
3. Check continuity between IPDM E/R harness connector E122 terminal 42 and oil pressure switch harness
connector E208 terminal 1.
4. Check continuity between IPDM E/R harness connector E122 terminal 42 and ground.
Are the inspection results normal?
YES
>> Inspection End.
NO
>> Repair harness or connector.
Component Inspection
INFOID:0000000009483215
1.
CHECK OIL PRESSURE SWITCH
Check continuity between oil pressure switch and ground.
Is the inspection result normal?
OIL W/L
When ignition switch is in ON
position (Engine stopped)
: ON
When engine is running
: OFF
Continuity should exist.
Continuity should not exist.
Condition
Oil pressure [kPa (kg/cm
2
, psi)]
Continuity
Engine stopped
Less than 29 (0.3, 4)
Yes
Engine running
More than 29 (0.3, 4)
No
ELF0044D
MWI
OIL PRESSURE SWITCH SIGNAL CIRCUIT
MWI-37
< DTC/CIRCUIT DIAGNOSIS >
C
D
E
F
G
H
I
J
K
L
M
B
A
O
P
YES
>> Inspection End.
NO
>> Replace the oil pressure switch.
MWI-38
< ECU DIAGNOSIS INFORMATION >
COMBINATION METER
ECU DIAGNOSIS INFORMATION
COMBINATION METER
Reference Value
INFOID:0000000009483216
TERMINAL LAYOUT
PHYSICAL VALUES
LKIA0698E
Termi-
nal
Wire
color
Item
Condition
Reference value (V)
(Approx.)
Ignition
switch
Operation or condition
2
P
Generator
ON
Generator voltage low
0
Generator voltage normal
Battery voltage
3
R/Y
Battery power supply
—
—
Battery voltage
4
B/Y
Fuel level sensor ground
ON
—
0
6
SB
Vehicle speed signal out-
put (8-pulse)
ON
Speedometer operated
[When vehicle speed is ap-
prox. 40 km/h (25 MPH)]
NOTE:
Maximum voltage may be 12V due to spec-
ifications (connected units).
7
G
PNP signal
ON
Selector lever: P or N (A/
T), Neutral (M/T)
0
Except above
Battery voltage
9
BR
Fuel level sensor signal
—
—
Refer to
.
11
P
CAN-L
—
—
—
12
L
CAN-H
—
—
—
13
GR
Ground
—
—
0
16
W/G
Ignition switch ON or
START
ON
—
Battery voltage
17
B
Starter relay
ON
Selector lever: P or N
Battery voltage
Except above
0
22
BR
Illumination control
switch
—
—
Refer to
.
23
B
Ground
—
—
0
24
V
Seat belt buckle switch
LH
ON
Unfastened (ON)
0
Fastened (OFF)
Battery voltage
PKIC0643E
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