Page 4337 of 5883

MWI-30
< COMPONENT DIAGNOSIS >
FUEL LEVEL SENSOR SIGNAL CIRCUIT
3.CHECK FUEL LEVEL SENSOR UNIT GROUND CIRCUIT
1. Check continuity between combination meter harness connector
(A) and fuel level sensor unit and fuel pump harness connector
(B).
2. Check continuity between combination meter harness connector
(A) and ground.
Is the inspection result normal?
YES >> GO TO 4
NO >> Repair harness or connector.
4.CHECK INSTALLATION CONDITION
Check fuel level sensor unit installation, and check whether the float arm interferes or binds with any of the
internal components in the fuel tank.
Is the inspection result normal?
YES >> Inspection End.
NO >> Install the fuel level sensor unit properly.
Component InspectionINFOID:0000000001374696
1.REMOVE FUEL LEVEL SENSOR UNIT
Remove the fuel level sensor unit. Refer to FL-8, "
Removal and Installation".
>> GO TO 2
2.CHECK FUEL LEVEL SENSOR UNIT AND FUEL PUMP
Check the resistance between terminals 2 and 4.
*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-8, "
Removal and Installation".
AB
Continuity
Connector Terminal Connector Terminal
M24 24 B40 4 Yes
A
GroundContinuity
Connector Terminal
M24 24 No
WKIA6019E
Te r m i n a lFloat position
mm (in)Resistance value
(Approx.)
24*1 Full 160 (8.07) 6Ω
*2 Empty 20 (1.02) 80Ω
WKIA6020E
Page 4338 of 5883

MWI
OIL PRESSURE SWITCH SIGNAL CIRCUIT
MWI-31
< COMPONENT DIAGNOSIS >
C
D
E
F
G
H
I
J
K
L
MB A
O
P
OIL PRESSURE SWITCH SIGNAL CIRCUIT
DescriptionINFOID:0000000001374697
Detects the engine oil pressure and transmits the oil pressure switch signal to the IPDM E/R.
Component Function CheckINFOID:0000000001374698
1.COMBINATION METER INPUT SIGNAL
1. Select “METER/M&A” on CONSULT-III.
2. Monitor “OIL W/L” of “DATA MONITOR” while operating ignition switch.
>> Inspection End.
Diagnosis ProcedureINFOID:0000000001374699
1.CHECK OIL PRESSURE SWITCH CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect IPDM E/R connector E46 and oil pressure switch
connector F32.
3. Check continuity between IPDM E/R harness connector E46 (A)
terminal 37 and oil pressure switch harness connector F32 (B)
terminal 1.
Is the inspection result normal?
YES >> Inspection End.
NO >> Repair harness or connector.
Component InspectionINFOID:0000000001374700
1.CHECK OIL PRESSURE SWITCH
Check continuity between oil pressure switch and ground.
Is the inspection result normal?
YES >> Inspection End.
NO >> Replace the oil pressure switch.OIL W/L
When ignition switch is in ON
position (Engine stopped): ON
When engine is running : OFF
Continuity should exist.
WKIA5459E
Condition
Oil pressure [kPa (kg/cm2, psi)]Continuity
Engine stopped Less than 29 (0.3, 4) Yes
Engine running More than 29 (0.3, 4) No
ELF0044D
Page 4339 of 5883

MWI-32
< COMPONENT DIAGNOSIS >
OIL LEVEL SENSOR SIGNAL CIRCUIT
OIL LEVEL SENSOR SIGNAL CIRCUIT
DescriptionINFOID:0000000001537460
Transmits the oil level sensor signal to the combination meter.
Diagnosis Procedure (With Diesel)INFOID:0000000001537463
1.CHECK OIL LEVEL SENSOR CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect combination meter connector and oil level sensor
connector.
3. Check continuity between combination meter harness connector
M24 (A) terminals 36, 37 and oil level sensor harness connector
F60 (B) terminals 1, 2.
4. Check continuity between combination meter harness connector
M24 (A) terminals 36, 37 and ground.
Is the inspection result normal?
YES >> INSPECTION END
NO >> Repair harness or connector.
Diagnosis Procedure (Without Diesel)INFOID:0000000001537462
1.CHECK OIL LEVEL SENSOR CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect combination meter connector and oil level sensor
connector.
3. Check continuity between combination meter harness connector
M24 (A) terminals 36, 37 and oil level sensor harness connector
F60 (B) terminals 1, 3.
4. Check continuity between combination meter harness connector
M24 (A) terminals 36, 37 and ground.
Is the inspection result normal?
YES >> INSPECTION END
NO >> Repair harness or connector.
Component Inspection (With Diesel)INFOID:0000000001537465
1.CHECK OIL LEVEL SENSOR UNIT36 – 1 : Continuity should exist.
37 – 2 : Continuity should exist.
36, 37 – Ground : Continuity should not exist.
AWNIA0166ZZ
36 – 3 : Continuity should exist.
37 – 1 : Continuity should exist.
36, 37 – Ground : Continuity should not exist.
AWNIA0165ZZ
Page 4340 of 5883
MWI
OIL LEVEL SENSOR SIGNAL CIRCUIT
MWI-33
< COMPONENT DIAGNOSIS >
C
D
E
F
G
H
I
J
K
L
MB A
O
P
1. Turn ignition switch OFF.
2. Disconnect oil level sensor connector.
3. Check resistance between oil level sensor terminals 1 and 2.
Is the inspection result normal?
YES >> INSPECTION END
NO >> Replace oil level sensor.
Component Inspection (Without Diesel)INFOID:0000000001537464
1.CHECK OIL LEVEL SENSOR UNIT
1. Turn ignition switch OFF.
2. Disconnect oil level sensor connector.
3. Check resistance between oil level sensor terminals 1 and 3.
Is the inspection result normal?
YES >> INSPECTION END
NO >> Replace oil level sensor.1 – 2 : 3 – 20 Ω
AWNIA0168ZZ
1 – 3 : 3 – 20 Ω
AWNIA0167ZZ
Page 4341 of 5883

MWI-34
< COMPONENT DIAGNOSIS >
AMBIENT SENSOR SIGNAL CIRCUIT
AMBIENT SENSOR SIGNAL CIRCUIT
DescriptionINFOID:0000000001537467
The ambient sensor detects ambient temperature and converts it into a resistance value which is then input
into the combination meter.
NOTE:
On vehicles equipped with auto A/C, the ambient sensor signal is shared with the front air control. The combi-
nation meter is notified of the signal sharing via the auto A/C sense circuit.
Diagnosis ProcedureINFOID:0000000001537468
1.CHECK AMBIENT SENSOR CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect combination meter connector and ambient sensor
connector.
3. Check continuity between combination meter harness connector
M24 (A) terminal 19 and ambient sensor harness connector E60
(B) terminal 2.
4. Check continuity between combination meter harness connector
M24 (A) terminal 19 and ground.
Is the inspection result normal?
YES >> GO TO 2
NO >> Repair harness or connector.
2.CHECK AMBIENT SENSOR GROUND CIRCUIT
1. Check continuity between combination meter harness connector
M24 (A) terminal 20 and ambient sensor harness connector E60
(B) terminal 1.
2. Check continuity between combination meter harness connector
M24 (A) terminal 20 and ground.
Is the inspection result normal?
YES >> With auto A/C: GO TO 3
Without auto A/C: INSPECTION END
NO >> Repair harness or connector.
3.CHECK AUTO A/C SENSE SIGNAL
1. Connect combination meter and ambient sensor connectors.
2. Turn ignition switch ON.
3. Check voltage between combination meter harness connector
M24 terminal 25 and ground.
Is the inspection result normal?
YES >> INSPECTION END
NO >> GO TO 419 – 2 : Continuity should exist.
19 – Ground : Continuity should not exist.
AWNIA0169ZZ
20 – 1 : Continuity should exist.
20 – Ground : Continuity should not exist.
AWNIA0170ZZ
25 – Ground : 5V
AWNIA0221ZZ
Page 4342 of 5883

MWI
AMBIENT SENSOR SIGNAL CIRCUIT
MWI-35
< COMPONENT DIAGNOSIS >
C
D
E
F
G
H
I
J
K
L
MB A
O
P
4.CHECK AUTO A/C SENSE CIRCUIT
With NAVI
1. Turn ignition switch OFF.
2. Disconnect combination meter connector M24 and front air con-
trol connector M86.
3. Check continuity between combination meter harness connector
M24 (A) terminal 25 and front air control harness connector M86
(B) terminal 1.
4. Check continuity between combination meter harness connector
M24 (A) terminal 25 and ground.
Without NAVI
1. Turn ignition switch OFF.
2. Disconnect combination meter connector M24 and front air con-
trol connector M50.
3. Check continuity between combination meter harness connector
M24 (A) terminal 25 and front air control harness connector M50
(B) terminal 3.
4. Check continuity between combination meter harness connector
M24 (A) terminal 25 and ground.
Is the inspection result normal?
YES >> Replace front air control. Refer to VTL-7, "Removal and Installation".
NO >> Repair harness or connector.
Component InspectionINFOID:0000000001537469
Refer to HAC-131, "Ambient Sensor Component Inspection" (without NAVI) or HAC-245, "Ambient Sensor
Component Inspection" (with NAVI). 25 – 1 : Continuity should exist.
25 – Ground : Continuity should not exist.
25 – 3 : Continuity should exist.
25 – Ground : Continuity should not exist.
AWNIA0222ZZ
AWNIA0223ZZ
Page 4343 of 5883

MWI-36
< ECU DIAGNOSIS >
COMBINATION METER
ECU DIAGNOSIS
COMBINATION METER
Reference ValueINFOID:0000000001374706
TERMINAL LAYOUT
PHYSICAL VALUES
LKIA0698E
Te r -
mi-
nal
No.Wire
colorItemCondition
Reference value (V)
(Approx.) Ignition
switchOperation or condition
1LCAN-H — — —
2PCAN-L — — —
3VVehicle speed signal output
(2-pulse)ONSpeedometer operated
[When vehicle speed is approx.
40 km/h (25 MPH)] NOTE:
Maximum voltage may be 5V due to
specifications (connected units).
4OVehicle speed signal output
(8-pulse)ONSpeedometer operated
[When vehicle speed is approx.
40 km/h (25 MPH)]NOTE:
Maximum voltage may be 12V due to
specifications (connected units).
6 BR Fuel level sensor signal (+) — — Refer to MWI-29, "
Description".
7 BR Air bag signal ONAir bag warning lamp ON 4
Air bag warning lamp OFF 0
8 P O/D OFF switch ONO/D OFF switch pressed 0
O/D OFF switch released Battery voltage
9OSeat belt buckle switch (driv-
er side)ONUnfastened (ON) 0
Fastened (OFF) Battery voltage
10 SB Parking Brake switch ONParking brake applied 0
Parking brake released Battery voltage
PKIC0642E
PKIC0643E
Page 4344 of 5883

MWI
COMBINATION METER
MWI-37
< ECU DIAGNOSIS >
C
D
E
F
G
H
I
J
K
L
MB A
O
P
11 LG Brake fluid level switch ONBrake fluid level low 0
Brake fluid level normal Battery voltage
16 VSteering switch (trip comput-
er) signalONPress the steering switch (trip
computer)0
Other than the above 5
19 V Ambient sensor signal ON —
20 BR Ambient sensor ground ON — 0
21
BGround — — 0 22
23
24 V Fuel level sensor ground (-) ON — 0
25 RAuto A/C sense signal (with
auto A/C)ON — 5V
27 G Battery power supply OFF — Battery voltage
28 SB Ignition switch ON or START ON — Battery voltage
30 G Stop lamp switch ONBrake pedal depressed Battery voltage
Brake pedal released 0
31 V A/T N-range input (with A/T) ONTransmission gear selector lever
in N positionBattery voltage
Transmission gear selector lever
other than N position0
32 W A/T P-range input (with A/T) ONTransmission gear selector lever
in P positionBattery voltage
Transmission gear selector lever
other than P position0
33 Y A/T PN output (with A/T) ONTransmission gear selector lever
in P or N position0
Transmission gear selector lever
other than P or N positionBattery voltage
35 BREngine coolant temperature
signal outputONAt idle [after warming up, approx.
80°C (176°F)]
NOTE:
The waveforms vary depending
on engine coolant temperature. Te r -
mi-
nal
No.Wire
colorItemCondition
Reference value (V)
(Approx.) Ignition
switchOperation or condition
JSNIA0014GB
SKIB3651J