Subaru Crosstrek Service Manual: Dtc u1201 can-hs counter abnormal

DTC DETECTING CONDITION:

Communication is unstable because of high speed CAN communication error.

TROUBLE SYMPTOM:

• Display of combination meter indicates faulty.

• Control faulty may occur due to CAN communication error.

1.CHECK PERFORMING OF BASIC DIAGNOSTIC PROCEDURE.

Was the basic diagnostic procedure performed up to STEP 3?

Diagnostic Procedure with Diagnostic Trouble Code (DTC) > DTC U1201 CAN-HS COUNTER ABNORMAL">Go to Step 2.

Perform the basic diagnostic procedure. Basic Diagnostic Procedure">

2.CHECK DTC.

1) Start the engine.

2) Using the Subaru Select Monitor, read DTC of CAN system. Read Diagnostic Trouble Code (DTC)">

Is U0073 a current malfunction?

Perform the diagnosis of U0073. Diagnostic Procedure with Diagnostic Trouble Code (DTC) > DTC U0073 CONTROL MODULE COMMUNICATION BUS OFF">

Diagnostic Procedure with Diagnostic Trouble Code (DTC) > DTC U1201 CAN-HS COUNTER ABNORMAL">Go to Step 3.

3.CHECK DTC.

Check the displayed DTC.

Is U1201 a current malfunction?

Diagnostic Procedure with Diagnostic Trouble Code (DTC) > DTC U1201 CAN-HS COUNTER ABNORMAL">Go to Step 4.

It is possible that temporary poor communication occurs. Perform the clear memory. Clear Memory Mode">

4.CHECK DTC.

1) Turn the ignition switch to ON.

2) Using the Subaru Select Monitor, read DTC of CAN system. Read Diagnostic Trouble Code (DTC)">

Is U1201 a current malfunction?

Diagnostic Procedure with Diagnostic Trouble Code (DTC) > DTC U1201 CAN-HS COUNTER ABNORMAL">Go to Step 5.

It is possible that temporary poor communication occurs. Perform the clear memory. Clear Memory Mode">

5.CHECK CONTROL MODULE.

1) Turn the ignition switch to OFF.

2) Disconnect the control modules other than body integrated unit in order.

NOTE:

When disconnecting ECM or VDC CM, connect resistance of 120 ? between CAN Hi and CAN Lo as an alternative of end resistance.

3) Turn the ignition switch to ON.

4) Using the Subaru Select Monitor, read DTC of CAN system. Read Diagnostic Trouble Code (DTC)">

Is there any control module that U1201 is not detected as current malfunction?

Replace the control module.

Repeat 1) to 4) in step 5 until U1201 is not detected.

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