LAN SYSTEM (DIAGNOSTICS) > General Diagnostic Table

INSPECTION

Read the DTC or inspect and diagnose the following data in the current data display using Subaru Select Monitor.

1. LAN SYSTEM

Item

Operation

Specifications

Note

YES

NO

Diagnostic code

DTC is not displayed when inspecting all DTCs.

DTC is not displayed.

Perform the diagnosis according to DTC.

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Engine coolant temperature

Check the current data display of ECM, TCM and body integrated unit. Three data value are the same.

Same values

Inspect LAN system.

If engine coolant temperature sensor is not OK, inspect the sensor circuit.

R defogger SW

It turns to ON when pressing switch. (Low-speed CAN is OK)

Turns to ON.

Inspect rear defogger switch.

Rear defogger switch is connected with Low-speed CAN.

R defogger output

When switch input, it is output.

Output

Replace the body integrated unit.

If not operating with output, check the rear defogger relay.

Door lock actuator

When locked with door lock switch, it is output.

Output

Replace the body integrated unit.

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2. BODY INTEGRATED UNIT

Item

Operation

Specifications

Note

YES

NO

Illumination VR power supply

Operate the illumination volume, illumination light is controlled according to the change of voltage on data display.

Illumination light is controlled with changing of data.

Inspect the illumination volume.

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Fuel level resistance

Check the fuel level resistance and fuel level resistance 2. Both resistances are same.

Same values

Inspect the body integrated unit.

Compare the input and output values of body integrated unit.

R wiper SW input

When rear wiper SW to ON, data display turns to ON.

Turns to ON.

Inspect the rear wiper switch.

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R wiper output

When rear wiper switch to ON, output signal turns to ON.

Turns to ON.

Replace the body integrated unit.

If not operate with output turned to ON, check the rear wiper motor.

Keyless Entry

Keyless entry LOCK/UNLOCK the doors.

Operate

Inspect the keyless antenna.

If the antenna is OK, replace the body integrated unit.

Brake Switch

When brake pedal is depressed, it turns to ON.

Turns to ON.

Inspect the brake switch.

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Shift lock solenoid

The shift lock releases when depressing the brake pedal.

Released

Inspect the shift lock.

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Door lock SW

When locked with door lock switch, it turns to ON.

Turns to ON.

Inspect door lock switch.

The door lock switch is connected to the body integrated unit.

Body integrated unit registration (function setting)

Does Vehicle equipment correspond to setting values?

Correspondence

Reconfigure the values according to vehicle equipment.

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Unit customize

When changing customize setting, the registration completes correctly.

Registered

Inspect the body integrated unit.

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Manual mode

Switch the shift (UP/DOWN) on Manual mode. Indicator is changed in 1 — 2.

Change

Inspect the shift lever.

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Function check

Each check item operate correctly. (Except for not equipped)

Operate

Inspect for nonfunctional actuator.

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