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Subaru Crosstrek Service Manual: Diagnostic procedure for subaru select monitor communication Communication for initializing impossible

Subaru Crosstrek Service Manual / Engine (diagnostics)(h4do) / Diagnostic procedure for subaru select monitor communication Communication for initializing impossible

ENGINE (DIAGNOSTICS)(H4DO) > Diagnostic Procedure for Subaru Select Monitor Communication

COMMUNICATION FOR INITIALIZING IMPOSSIBLE

DIAGNOSIS:

Open or short circuit in data link connector

TROUBLE SYMPTOM:

Subaru Select Monitor communication failure

WIRING DIAGRAM:

Engine electrical system Engine Electrical System">

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1.CHECK POWER SUPPLY CIRCUIT.

Connect DST-i or general scan tool to data link connector.

Does DST-i or the general scan tool turn ON?

Diagnostic Procedure for Subaru Select Monitor Communication > COMMUNICATION FOR INITIALIZING IMPOSSIBLE">Go to Step 4.

Diagnostic Procedure for Subaru Select Monitor Communication > COMMUNICATION FOR INITIALIZING IMPOSSIBLE">Go to Step 2.

2.CHECK POWER SUPPLY CIRCUIT.

Measure the voltage between data link connector and chassis ground.

Connector & terminal

(B40) No. 16 (+) — Chassis ground (−):

Is the voltage 10 V or more?

Diagnostic Procedure for Subaru Select Monitor Communication > COMMUNICATION FOR INITIALIZING IMPOSSIBLE">Go to Step 3.

Repair the power supply circuit.

NOTE:

In this case, repair the following item:

Open or ground short circuit of harness between battery and data link connector

Blown out of fuse (M/B No. 13)

3.CHECK HARNESS BETWEEN DATA LINK CONNECTOR AND CHASSIS GROUND.

1) Turn the ignition switch to OFF.

2) Measure the resistance of harness between data link connector and chassis ground.

Connector & terminal

(B40) No. 4 — Chassis ground:

(B40) No. 5 — Chassis ground:

Is the resistance less than 5 ??

Repair the poor contact of data link connector.

Repair the harness and connector.

NOTE:

In this case, repair the following item:

Open circuit in harness between ECM connector and data link connector

Open circuit of harness between ECM connector and engine ground

Poor contact of ECM connector

Poor contact of coupling connector

4.CHECK HARNESS BETWEEN ECM AND DATA LINK CONNECTOR.

Measure the resistance between data link connector and chassis ground.

Connector & terminal

(B40) No. 7 — Chassis ground:

Is the resistance 1 M? or more?

Repair the poor contact of the ECM or data link connector.

Repair the short circuit to ground in harness between ECM connector and data link connector.

Data link connector Note
ENGINE (DIAGNOSTICS)(H4DO) > Data Link ConnectorNOTEThis connector is used for Subaru Select Monitor.CAUTION:Do not connect any scan tools other than Subaru Select Monitor or general scan tool beca ...

Drive cycle Procedure
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Other materials:

Removal
FUEL INJECTION (FUEL SYSTEMS)(H4DO) > Intake ManifoldREMOVAL1. Release the fuel pressure. Fuel > PROCEDURE">2. Disconnect the ground cable from battery.3. Open the fuel filler lid and remove the fuel filler cap.NOTE:This operation is required to release the inner pressure of the fuel ...

Dtc c1241 rear left abs sensor circuit
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Specification
STARTING/CHARGING SYSTEMS(H4DO) > General DescriptionSPECIFICATIONItemSpecificationsVehicle modelCVTMTStarterTypeReduction typeModelM000T38571M000T33176ManufacturerMitsubishi ElectricVoltage and output12 V — 1.2 kW12 V — 1.0 kWDirection of rotationCounterclockwise (when observed from pinion)N ...

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