Subaru Crosstrek manuals

Subaru Crosstrek Service Manual: Inspection

INSTRUMENTATION/DRIVER INFO > Multi-function Display (MFD) System

INSPECTION

Standard type

Refer to the following inspection steps. Multi-function Display (MFD) System > INSPECTION">

High grade type

Refer to “Basic Diagnostic Procedure” of “INSTRUMENTATION/DRIVER INFO (DIAGNOSTICS)” section. Basic Diagnostic Procedure">

1. SYMPTOM CHART

Symptoms

Repair order

Note

No display is shown.

(1) Power supply

(2) Ground circuit

(3) Communication circuit harness

(4) MFD

Multi-function Display (MFD) System > INSPECTION">

Ambient air temperature/fuel economy displays do not appear.

(1) Power supply

(2) Ground circuit

(3) MFD

Multi-function Display (MFD) System > INSPECTION">

Only ambient air temperature display is not displayed.

(1) Power supply

(2) Harness

(3) Ambient sensor

(4) Communication circuit

(5) MFD

Multi-function Display (MFD) System > INSPECTION">

Only fuel economy display is not displayed.

(1) Setting

(2) MFD

Multi-function Display (MFD) System > INSPECTION">

2. CHECK POWER SUPPLY AND GROUND CIRCUIT AND COMMUNICATION CIRCUIT

STEPCHECKYESNO

1.CHECK POWER SUPPLY.

1) Disconnect the MFD connector.

2) Measure the voltage between MFD connector and chassis ground.

Connector & terminal

(i122) No. 1 (+) — Chassis ground (−):

Is the voltage 10 V or more?

Multi-function Display (MFD) System > INSPECTION">Go to Step 2.

Check the harness for open or short between the fuse and MFD.

2.CHECK GROUND CIRCUIT.

Measure the resistance between MFD connector and chassis ground.

Connector & terminal

(i122) No. 2 — Chassis ground:

Is the resistance less than 10 ??

Multi-function Display (MFD) System > INSPECTION">Go to Step 3.

Repair or replace the harness.

3.CHECK HARNESS BETWEEN MFD AND COMBINATION METER ASSEMBLY.

1) Disconnect the connector of combination meter assembly.

2) Check the harness between MFD and combination meter assembly.

Connector & terminal

(i122) No. 9 — (i10) No. 28:

Is harness normal?

Multi-function Display (MFD) System > INSPECTION">Go to Step 4.

Repair or replace the harness.

4.CHECK MFD.

1) Remove the MFD.

2) Attach the clock to another vehicle on which the clock display operates normally, and check its operation.

Is MFD normal?

Replace the meter - main assembly. Combination Meter">

Replace the MFD.

3. CHECK CLOCK SYSTEM COMMUNICATION CIRCUIT

STEPCHECKYESNO

1.CHECK POWER SUPPLY.

1) Disconnect the MFD connector.

2) Turn the ignition switch to ON.

3) Measure the voltage between MFD connector and chassis ground.

Connector & terminal

(i122) No. 3 (+) — Chassis ground (−):

Is the voltage 10 V or more?

Multi-function Display (MFD) System > INSPECTION">Go to Step 2.

Repair or replace the harness.

2.CHECK GROUND CIRCUIT.

Measure the resistance between MFD connector and chassis ground.

Connector & terminal

(i122) No. 2 — Chassis ground:

Is the resistance less than 10 ??

Multi-function Display (MFD) System > INSPECTION">Go to Step 3.

Repair or replace the harness.

3.CHECK MFD.

1) Remove the MFD.

2) Attach the clock to another vehicle on which the clock display operates normally, and check its operation.

Is the MFD normal?

Repair the poor contact of connector.

Replace the MFD.

4. CHECK AMBIENT TEMPERATURE METER SYSTEM COMMUNICATION CIRCUIT

STEPCHECKYESNO

1.CHECK AMBIENT SENSOR POWER SUPPLY.

1) Disconnect the ambient sensor connector.

2) Turn the ignition switch to ON.

3) Measure the voltage between the ambient sensor connector and chassis ground.

Connector & terminal

(F78) No. 1 (+) — Chassis ground (−):

Is the voltage 4 V or more?

Multi-function Display (MFD) System > INSPECTION">Go to Step 2.

Check the harness for open or short between the fuse and MFD.

2.CHECK HARNESS BETWEEN AMBIENT SENSOR AND COMBINATION METER ASSEMBLY.

1) Disconnect the connector of combination meter assembly.

2) Check harness between ambient sensor and combination meter assembly.

Connector & terminal

(F78) No. 1 — (i10) No. 27:

(F78) No. 2 — (i10) No. 36:

Is harness normal?

Multi-function Display (MFD) System > INSPECTION">Go to Step 3.

Repair or replace the harness.

3.CHECK AMBIENT SENSOR.

Check the ambient sensor. Ambient Sensor > INSPECTION">

Is the ambient sensor operating properly?

Multi-function Display (MFD) System > INSPECTION">Go to Step 4.

Replace the ambient sensor.

4.CHECK AMBIENT TEMPERATURE DISPLAY.

1) Connect the combination meter assembly connector.

2) Install the 3 k? resistance between connector terminals of the ambient sensor.

3) Turn the ignition switch to ON.

Connector & terminal

(F78) No. 1 — No. 2:

Does the ambient temperature display 25°C (77°F)?

Repair the poor contact between the ambient sensor and harness connector.

Multi-function Display (MFD) System > INSPECTION">Go to Step 5.

5.CHECK CURRENT DATA.

Using the Subaru Select Monitor, display the data of «Ambient Air Temperature».

NOTE:

For detailed operation procedures, refer to “Application help”.

Is the ambient temperature of 25°C (77°F) output?

Multi-function Display (MFD) System > INSPECTION">Go to Step 6.

Replace the meter - main assembly. Combination Meter">

6.CHECK MFD.

1) Remove the MFD.

2) Attach the ambient temperature display to another vehicle on which the ambient temperature display operates normally to check its operation.

Does the ambient temperature display 25°C (77°F)?

Replace the MFD.

Replace the meter - main assembly. Combination Meter">

5. CHECK COMMUNICATION CIRCUIT OF FUEL ECONOMY SYSTEM

STEPCHECKYESNO

1.CHECK FUEL ECONOMY DISPLAY OFF MODE.

Check that the mode display changes when the MFD changeover knob is operated.

(Display changes in the following order: cruising distance > average fuel economy > instantaneous fuel economy > continuous driving time > average vehicle speed > blank display)

Is fuel economy displayed?

MFD is normal.

Multi-function Display (MFD) System > INSPECTION">Go to Step 2.

2.CHECK MFD.

1) Remove the MFD.

2) Attach the fuel economy display to another vehicle on which the fuel economy display operates normally to check its operation.

Is the fuel economy display correct?

Replace the meter - main assembly. Combination Meter">

Replace the MFD.

Wiring diagram
INSTRUMENTATION/DRIVER INFO > Multi-function Display (MFD) SystemWIRING DIAGRAMRefer to “Multi-function Display (MFD) System” in WI section. Multi-function Display (MFD) System > WI ...

Note
INSTRUMENTATION/DRIVER INFO > Multi-function Display (MFD) SystemNOTEFor procedure of each component in the Multi-Function Display (MFD) system, refer to the respective section.• Multi-functi ...

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