Nissan Frontier. Manual — part 1015

MWI-4

< BASIC INSPECTION >

DIAGNOSIS AND REPAIR WORKFLOW

BASIC INSPECTION

DIAGNOSIS AND REPAIR WORKFLOW

Work Flow

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DETAILED FLOW

1.

CONFIRM SYMPTOM

Confirm symptom or customer complaint.

>> GO TO 2

2.

CHECK SELF-DIAGNOSIS OPERATION OF COMBINATION METER

Perform self-diagnosis of combination meter. Refer to

MWI-25, "Diagnosis Description"

.

Does self-diagnosis mode operate?

YES

>> GO TO 3

NO

>> Check power supply and ground circuit of combination meter. Refer to

MWI-31, "COMBINATION

METER : Diagnosis Procedure"

. Then, GO TO 4

3.

CHECK COMBINATION METER (CONSULT)

Select “METER/M&A” on CONSULT and perform “SELF-DIAGNOSIS” of combination meter. Refer to

MWI-

27, "CONSULT Function (METER/M&A)"

.

Self-diagnostic results content

No malfunction detected>>Repair or replace the cause of symptom. Then, GO TO 4

Malfunction detected>>Refer to

MWI-40, "DTC Index"

. Then, GO TO 4

4.

CONFIRM OPERATION

Does the combination meter operate normally?
YES or NO

YES

>> Inspection End.

NO

>> GO TO 1

MWI

METER SYSTEM

MWI-5

< SYSTEM DESCRIPTION >

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SYSTEM DESCRIPTION

METER SYSTEM

METER SYSTEM
METER SYSTEM : System Diagram

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METER SYSTEM : System Description

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COMBINATION METER

• Speedometer, odo/trip meter, tachometer, fuel gauge, engine coolant temperature gauge, engine oil pres-

sure gauge (with 6 gauge combination meter), voltage gauge (with 6 gauge combination meter) and trip

computer (with trip computer) are controlled by the unified meter control unit, which is built into the combina-

tion meter.

• Warning and indicator lamps are controlled by the unified meter control unit and by components connected

directly to the combination meter.

• Digital meter is adopted for odo/trip meter*, as well as the A/T position indicator display.

*The record of the odometer is kept even if the battery cable is disconnected. The record of the trip meter is

erased when the battery cable is disconnected.

• Odo/trip meter and A/T indicator segments can be checked in diagnosis mode.

• Meter/gauge can be checked in diagnosis mode.

NOTE:

Under the following conditions, the meters will perform a homing function. The meter pointers will move down

slightly and then move back to the resting position. This is a normal design condition.

• Approximately 60 seconds after turning the ignition switch from the ON to the OFF position

• If the battery is disconnected and then reconnected

AWNIA3303GB

MWI-6

< SYSTEM DESCRIPTION >

METER SYSTEM

METER SYSTEM : Arrangement of Combination Meter

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AWNIA2494GB

MWI

METER SYSTEM

MWI-7

< SYSTEM DESCRIPTION >

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METER SYSTEM : Component Parts Location

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METER SYSTEM : Component Description

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AWNIA0781ZZ

1.

Combination meter M24

2.

Fuel level sensor unit and fuel pump C5
(view with fuel tank removed)

3.

ECM (view with ECM cover removed)
E8 (with VQ40DE for Mexico)
E16 (with QR25DE)
E55 (with VQ40DE except Mexico)
A. Coolant reservoir

4.

ABS actuator and electric unit (control
unit) E127

5.

Oil pressure switch E208 (with VQ40DE)
A. Oil pan (upper)

6.

Oil pressure switch F4 (with
QR25DE) (view with engine re-
moved)

7.

A/T assembly F9 (with A/T)

8.

BCM M18, M19 (view with lower instru-
ment panel LH removed)

9.

IPDM E/R E122, E124

Unit

Description

Combination meter

Controls the following with the signals received from each unit via CAN communication and the sig-
nals from switches and sensors.

• Speedometer

• Tachometer

• Engine coolant temperature gauge

• Fuel gauge

• Engine oil pressure gauge (with 6 gauge com-

bination meter)

• Odo/trip meter

• Voltage gauge (with 6 gauge combination

meter)

• Indicator lamps

• Warning lamps

• Warning chime

• Trip computer (with trip computer)

IPDM E/R

IPDM E/R reads the ON/OFF signals of the oil pressure switch and transmits the oil pressure switch
signal to the combination meter via BCM with CAN communication line.

Fuel level sensor unit

Refer to

MWI-34, "Description"

.